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Ersoy TF, Brainman D, Coras R, Berger B, Weissinger F, Grote A, Simon M. Defining the role of surgery for patients with multiple brain metastases. J Neurooncol 2024; 169:317-328. [PMID: 38916848 PMCID: PMC11341766 DOI: 10.1007/s11060-024-04739-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2024] [Accepted: 06/10/2024] [Indexed: 06/26/2024]
Abstract
PURPOSE To better define the role of surgery, we investigated survival and functional outcomes in patients with multiple brain metastases. METHODS Pertinent clinical and radiological data of 131 consecutive patients (156 surgeries) were analyzed retrospectively. RESULTS Surgical indications included mass effect (84.6%) and need for tissue acquisition (44.9%, for molecularly informed treatment: 10 patients). Major (i.e. CTCAE grade 3-5) neurological, surgical and medical complication were observed in 6 (3.8%), 12 (7.7%), and 12 (7.7%) surgical cases. Median preoperative and discharge KPS were 80% (IQF: 60-90%). Median overall survival (mOS) was 7.4 months. However, estimated 1 and 2 year overall survival rates were 35.6% and 25.1%, respectively. Survival was dismal (i.e. mOS ≤ 2.5 months) in patients who had no postoperative radio- and systemic therapy, or who incurred major complications. Multivariate analysis with all parameters significantly correlated with survival as univariate parameters revealed female sex, oligometastases, no major new/worsened neurological deficits, and postoperative radio- and systemic therapy as independent positive prognostic parameters. Univariate positive prognostic parameters also included histology (best survival in breast cancer patients) and less than median (0.28 cm3) residual tumor load. CONCLUSIONS Surgery is a reasonable therapeutic option in many patients with multiple brain metastases. Operations should primarily aim at reducing mass effect thereby preserving the patients' functional health status which will allow for further local (radiation) and systemic therapy. Surgery for the acquisition of metastatic tissue (more recently for molecularly informed treatment) is another important surgical indication. Cytoreductive surgery may also carry a survival benefit by itself.
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Affiliation(s)
- Tunc Faik Ersoy
- Department of Neurosurgery, University Hospital OWL, Campus Bielefeld-Bethel, Bielefeld, Germany.
| | - Daniel Brainman
- Department of Neurosurgery, University Hospital OWL, Campus Bielefeld-Bethel, Bielefeld, Germany
| | - Roland Coras
- Department of Neuropathology, University Hospital Erlangen, Erlangen, Germany
| | - Björn Berger
- Department for Neuroradiology, University Hospital OWL, Campus Bielefeld-Bethel, Bielefeld, Germany
| | - Florian Weissinger
- Department of Hematology, Oncology and Palliative Care, University Hospital OWL, Campus Bielefeld-Bethel, Bielefeld, Germany
| | - Alexander Grote
- Department of Neurosurgery, University Hospital OWL, Campus Bielefeld-Bethel, Bielefeld, Germany
- Department of Neurosurgery, University Hospital Marburg, Marburg, Germany
| | - Matthias Simon
- Department of Neurosurgery, University Hospital OWL, Campus Bielefeld-Bethel, Bielefeld, Germany
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Niedermeyer S, Schmutzer-Sondergeld M, Weller J, Katzendobler S, Kirchleitner S, Forbrig R, Harter PN, Baumgarten LV, Schichor C, Stoecklein V, Thon N. Neurosurgical resection of multiple brain metastases: outcomes, complications, and survival rates in a retrospective analysis. J Neurooncol 2024; 169:349-358. [PMID: 38904924 PMCID: PMC11341644 DOI: 10.1007/s11060-024-04744-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2024] [Accepted: 06/10/2024] [Indexed: 06/22/2024]
Abstract
PURPOSE This study investigates the outcomes of microsurgical resection of multiple brain metastasis (BMs). METHODS This retrospective, monocentric analysis included clinical data from all consecutive BM patients, who underwent simultaneous resection of ≥ 2 BMs between January 2018 and May 2023. Postoperative neurological and functional outcomes, along with perioperative complications, as well as survival data were evaluated. RESULTS A total of 47 patients, with a median age of 61 years (IQR 48-69), underwent 73 craniotomies (median 2; range 1-3) for resection of 104 BMs. Among patients, 80.8% presented with symptomatic BMs, causing focal neurological deficits in 53% of cases. Gross total resection was achieved in 87.2% of BMs. Karnofsky Performance Scale (KPS) scores improved in 42.6% of patients, remained unchanged in 46.8%, and worsened in 10.6% after surgery. Perioperative complications were observed in 29.8% of cases, with transient complications occurring in 19.2% and permanent deficits in 10.6%. The 30-days mortality rate was 2.1%. Logistic regression identified eloquent localization (p = 0.036) and infratentorial craniotomy (p = 0.018) as significant predictors of postoperative complications. Concerning overall prognosis, patients with permanent neurological deficits post-surgery (HR 11.34, p = 0.007) or progressive extracranial disease (HR: 4.649; p = 0.006) exhibited inferior survival. CONCLUSION Microsurgical resection of multiple BMs leads to clinical stabilization or functional improvement in most patients. Although transient complications do not affect overall survival, the presence of persistent neurological deficits (> 3 months post-surgery) and progressive extracranial disease negatively impact overall survival. This highlights the importance of careful patient selection for resection of multiple BMs.
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Affiliation(s)
- Sebastian Niedermeyer
- Department of Neurosurgery, LMU Hospital, Ludwig-Maximilian-University Munich, Marchioninistrasse 15, 81377, Munich, Germany.
| | - M Schmutzer-Sondergeld
- Department of Neurosurgery, LMU Hospital, Ludwig-Maximilian-University Munich, Marchioninistrasse 15, 81377, Munich, Germany
| | - J Weller
- Department of Neurosurgery, LMU Hospital, Ludwig-Maximilian-University Munich, Marchioninistrasse 15, 81377, Munich, Germany
| | - S Katzendobler
- Department of Neurosurgery, LMU Hospital, Ludwig-Maximilian-University Munich, Marchioninistrasse 15, 81377, Munich, Germany
| | - S Kirchleitner
- Department of Neurosurgery, LMU Hospital, Ludwig-Maximilian-University Munich, Marchioninistrasse 15, 81377, Munich, Germany
| | - R Forbrig
- Department of Neuroradiology, LMU Hospital, Ludwig-Maximilian-University Munich, Marchioninistrasse 15, 81377, Munich, Germany
| | - P N Harter
- Center for Neuropathology and Prion Research, LMU Hospital, Ludwig-Maximilian- University Munich, Feodor-Lynen Strasse 23, 81377, Munich, Germany
- German Cancer Consortium (DKTK), Partner Site Munich, and German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - L V Baumgarten
- Department of Neurosurgery, LMU Hospital, Ludwig-Maximilian-University Munich, Marchioninistrasse 15, 81377, Munich, Germany
| | - C Schichor
- Department of Neurosurgery, LMU Hospital, Ludwig-Maximilian-University Munich, Marchioninistrasse 15, 81377, Munich, Germany
| | - V Stoecklein
- Department of Neurosurgery, LMU Hospital, Ludwig-Maximilian-University Munich, Marchioninistrasse 15, 81377, Munich, Germany
| | - N Thon
- Department of Neurosurgery, LMU Hospital, Ludwig-Maximilian-University Munich, Marchioninistrasse 15, 81377, Munich, Germany
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Ishikawa Y, Teramura S, Nakano H, Ito K, Yamada T. Prognostic Factors and Impact of Therapeutic Intervention in Patients With Brain Metastases at the Initial Presentation. Cureus 2024; 16:e60368. [PMID: 38751406 PMCID: PMC11095982 DOI: 10.7759/cureus.60368] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/14/2024] [Indexed: 05/18/2024] Open
Abstract
Background Studies investigating the normative characteristics and prognosis of patients diagnosed with brain metastases (BMs) at the onset of cancer are scarce. Therefore, we analyzed real-world treatment options. Methodology This retrospective study enrolled 112 patients newly diagnosed with BM between May 2006 and October 2021. The variables examined included patients' age, sex, recurrence split analysis, Glasgow prognostic score (GPS), number of lesions, tumor size, peripheral brain tumor edema, targeted therapy, supportive care, chemotherapy, and date of onset. Prognostic factors were assessed using recursive partitioning analysis (RPA), graded prognostic assessment (GPA) scores, and GPS scoring, with magnetic resonance imaging (MRI) and computed tomography (CT) studies. Primary treatment comprised whole-brain radiotherapy (WBRT), with regular follow-up. Results Data from 112 survivors were analyzed, revealing a median overall survival time (MST) of 7.7 months, with some patients surviving beyond 24 months post-WBRT. Univariate analysis revealed associations between MST and RPA class, GPS, and treatment modalities (including targeted therapy and chemotherapy). RPA class 2, GPS of 0, and targeted therapy were identified as predictors of better prognosis in the multivariate analysis. In the subgroup not receiving chemotherapy, no significant difference in prognosis was seen between groups with or without WBRT. Conclusions Alongside RPA, scores indicating chronic inflammatory changes, including GPS, were confirmed as crucial prognostic factors. Moreover, treatment with molecularly targeted drugs correlated with favorable prognoses. The treatment-naïve group exhibited poorer prognoses, and WBRT was not deemed a significant prognostic factor in the chemotherapy group.
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Affiliation(s)
- Yojiro Ishikawa
- Division of Radiology, Tohoku Medical and Pharmaceutical University, Sendai, JPN
| | - Satoshi Teramura
- Division of Radiology, Tohoku Medical and Pharmaceutical University, Sendai, JPN
| | - Hiroshi Nakano
- Department of Radiation Oncology, Graduate School of Medicine, Tohoku University, Sendai, JPN
| | - Kengo Ito
- Division of Radiology, Tohoku Medical and Pharmaceutical University, Sendai, JPN
| | - Takayuki Yamada
- Division of Radiology, Tohoku Medical and Pharmaceutical University, Sendai, JPN
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Goldberg M, Mondragon-Soto MG, Altawalbeh G, Baumgart L, Gempt J, Bernhardt D, Combs SE, Meyer B, Aftahy AK. Enhancing outcomes: neurosurgical resection in brain metastasis patients with poor Karnofsky performance score - a comprehensive survival analysis. Front Oncol 2024; 13:1343500. [PMID: 38269027 PMCID: PMC10806166 DOI: 10.3389/fonc.2023.1343500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2023] [Accepted: 12/21/2023] [Indexed: 01/26/2024] Open
Abstract
Background A reduced Karnofsky performance score (KPS) often leads to the discontinuation of surgical and adjuvant therapy, owing to a lack of evidence of survival and quality of life benefits. This study aimed to examine the clinical and treatment outcomes of patients with KPS < 70 after neurosurgical resection and identify prognostic factors associated with better survival. Methods Patients with a preoperative KPS < 70 who underwent surgical resection for newly diagnosed brain metastases (BM) between 2007 and 2020 were retrospectively analyzed. The KPS, age, sex, tumor localization, cumulative tumor volume, number of lesions, extent of resection, prognostic assessment scores, adjuvant radiotherapy and systemic therapy, and presence of disease progression were analyzed. Univariate and multivariate logistic regression analyses were performed to determine the factors associated with better survival. Survival > 3 months was considered favorable and ≤ 3 months as poor. Results A total of 140 patients were identified. Median overall survival was 5.6 months (range 0-58). There was no difference in the preoperative KPS between the groups of > 3 and ≤ 3 months (50; range, 20-60 vs. 50; range, 10-60, p = 0.077). There was a significant improvement in KPS after surgery in patients with a preoperative KPS of 20% (20 vs 40 ± 20, p = 0.048). In the other groups, no significant changes in KPS were observed. Adjuvant radiotherapy was associated with better survival (44 [84.6%] vs. 32 [36.4%]; hazard ratio [HR], 0.0363; confidence interval [CI], 0.197-0.670, p = 0.00199). Adjuvant chemotherapy and immunotherapy resulted in prolonged survival (24 [46.2%] vs. 12 [13.6%]; HR 0.474, CI 0.263-0.854, p = 0.013]. Systemic disease progression was associated with poor survival (36 [50%] vs. 71 [80.7%]; HR 5.975, CI 2.610-13.677, p < 0.001]. Conclusion Neurosurgical resection is an appropriate treatment modality for patients with low KPS. Surgery may improve functional status and facilitate further tumor-specific treatment. Combined treatment with adjuvant radiotherapy and systemic therapy was associated with improved survival in this cohort of patients. Systemic tumor progression has been identified as an independent factor for a poor prognosis. There is almost no information regarding surgical and adjuvant treatment in patients with low KPS. Our paper provides novel data on clinical outcome and survival analysis of patients with BM who underwent surgical treatment.
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Affiliation(s)
- Maria Goldberg
- Department of Neurosurgery, School of Medicine, Klinikum rechts der Isar, Technical University Munich, Munich, Germany
| | - Michel G. Mondragon-Soto
- Department of Neurosurgery, National Institute of Neurology and Neurosurgery, Mexico City, Mexico
| | - Ghaith Altawalbeh
- Department of Neurosurgery, School of Medicine, Klinikum rechts der Isar, Technical University Munich, Munich, Germany
| | - Lea Baumgart
- Department of Neurosurgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Jens Gempt
- Department of Neurosurgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Denise Bernhardt
- Department of Radiation Oncology, School of Medicine, Klinikum rechts der Isar, Technical University Munich, Munich, Germany
- German Cancer Consortium (DKTK), Partner Site Munich, Munich, Germany
| | - Stephanie E. Combs
- Department of Radiation Oncology, School of Medicine, Klinikum rechts der Isar, Technical University Munich, Munich, Germany
- German Cancer Consortium (DKTK), Partner Site Munich, Munich, Germany
- Department of Radiation Sciences (DRS), Helmholtz Zentrum Munich, Institute of Innovative Radiotherapy (iRT), Munich, Germany
| | - Bernhard Meyer
- Department of Neurosurgery, School of Medicine, Klinikum rechts der Isar, Technical University Munich, Munich, Germany
| | - Amir Kaywan Aftahy
- Department of Neurosurgery, School of Medicine, Klinikum rechts der Isar, Technical University Munich, Munich, Germany
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Estler A, Hauser TK, Mengel A, Brunnée M, Zerweck L, Richter V, Zuena M, Schuhholz M, Ernemann U, Gohla G. Deep Learning Accelerated Image Reconstruction of Fluid-Attenuated Inversion Recovery Sequence in Brain Imaging: Reduction of Acquisition Time and Improvement of Image Quality. Acad Radiol 2024; 31:180-186. [PMID: 37280126 DOI: 10.1016/j.acra.2023.05.010] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Revised: 05/08/2023] [Accepted: 05/08/2023] [Indexed: 06/08/2023]
Abstract
RATIONALE AND OBJECTIVES Fluid-attenuated inversion recovery (FLAIR) imaging is playing an increasingly significant role in the detection of brain metastases with a concomitant increase in the number of magnetic resonance imaging (MRI) examinations. Therefore, the purpose of this study was to investigate the impact on image quality and diagnostic confidence of an innovative deep learning-based accelerated FLAIR (FLAIRDLR) sequence of the brain compared to conventional (standard) FLAIR (FLAIRS) imaging. MATERIALS AND METHODS Seventy consecutive patients with staging cerebral MRIs were retrospectively enrolled in this single-center study. The FLAIRDLR was conducted using the same MRI acquisition parameters as the FLAIRS sequence, except for a higher acceleration factor for parallel imaging (from 2 to 4), which resulted in a shorter acquisition time of 1:39 minute instead of 2:40 minutes (-38%). Two specialized neuroradiologists evaluated the imaging datasets using a Likert scale that ranged from 1 to 4, with 4 indicating the best score for the following parameters: sharpness, lesion demarcation, artifacts, overall image quality, and diagnostic confidence. Additionally, the image preference of the readers and the interreader agreement were assessed. RESULTS The average age of the patients was 63 ± 11years. FLAIRDLR exhibited significantly less image noise than FLAIRS, with P-values of< .001 and< .05, respectively. The sharpness of the images and the ability to detect lesions were rated higher in FLAIRDLR, with a median score of 4 compared to a median score of 3 in FLAIRS (P-values of<.001 for both readers). In terms of overall image quality, FLAIRDLR was rated superior to FLAIRS, with a median score of 4 vs 3 (P-values of<.001 for both readers). Both readers preferred FLAIRDLR in 68/70 cases. CONCLUSION The feasibility of deep learning FLAIR brain imaging was shown with additional 38% reduction in examination time compared to standard FLAIR imaging. Furthermore, this technique has shown improvement in image quality, noise reduction, and lesion demarcation.
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Affiliation(s)
- Arne Estler
- Diagnostic and Interventional Neuroradiology, Department of Radiology, University Hospital Tuebingen, Hoppe-Seyler-Str. 3, 72076 Tübingen, Baden-Württemberg, Germany (A.E., T.-K.H., L.Z., V.R., M.Z., U.E., G.G.).
| | - Till-Karsten Hauser
- Diagnostic and Interventional Neuroradiology, Department of Radiology, University Hospital Tuebingen, Hoppe-Seyler-Str. 3, 72076 Tübingen, Baden-Württemberg, Germany (A.E., T.-K.H., L.Z., V.R., M.Z., U.E., G.G.)
| | - Annerose Mengel
- Department of Neurology & Stroke, Eberhard-Karls University of Tübingen, Tuebingen, Germany (A.M.)
| | - Merle Brunnée
- Department of Neuroradiology, Neurological University Clinic, Heidelberg University Hospital, Heidelberg, Germany (M.B.)
| | - Leonie Zerweck
- Diagnostic and Interventional Neuroradiology, Department of Radiology, University Hospital Tuebingen, Hoppe-Seyler-Str. 3, 72076 Tübingen, Baden-Württemberg, Germany (A.E., T.-K.H., L.Z., V.R., M.Z., U.E., G.G.)
| | - Vivien Richter
- Diagnostic and Interventional Neuroradiology, Department of Radiology, University Hospital Tuebingen, Hoppe-Seyler-Str. 3, 72076 Tübingen, Baden-Württemberg, Germany (A.E., T.-K.H., L.Z., V.R., M.Z., U.E., G.G.)
| | - Mario Zuena
- Diagnostic and Interventional Neuroradiology, Department of Radiology, University Hospital Tuebingen, Hoppe-Seyler-Str. 3, 72076 Tübingen, Baden-Württemberg, Germany (A.E., T.-K.H., L.Z., V.R., M.Z., U.E., G.G.)
| | - Martin Schuhholz
- Faculty of Medicine, University of Tuebingen, Tübingen, Germany (M.S.)
| | - Ulrike Ernemann
- Diagnostic and Interventional Neuroradiology, Department of Radiology, University Hospital Tuebingen, Hoppe-Seyler-Str. 3, 72076 Tübingen, Baden-Württemberg, Germany (A.E., T.-K.H., L.Z., V.R., M.Z., U.E., G.G.)
| | - Georg Gohla
- Diagnostic and Interventional Neuroradiology, Department of Radiology, University Hospital Tuebingen, Hoppe-Seyler-Str. 3, 72076 Tübingen, Baden-Württemberg, Germany (A.E., T.-K.H., L.Z., V.R., M.Z., U.E., G.G.)
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Zhao Z, Chen Y, Sun T, Jiang C. Nanomaterials for brain metastasis. J Control Release 2024; 365:833-847. [PMID: 38065414 DOI: 10.1016/j.jconrel.2023.12.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Revised: 11/21/2023] [Accepted: 12/01/2023] [Indexed: 12/19/2023]
Abstract
Tumor metastasis is a significant contributor to the mortality of cancer patients. Specifically, current conventional treatments are unable to achieve complete remission of brain metastasis. This is due to the unique pathological environment of brain metastasis, which differs significantly from peripheral metastasis. Brain metastasis is characterized by high tumor mutation rates and a complex microenvironment with immunosuppression. Additionally, the presence of blood-brain barrier (BBB)/blood tumor barrier (BTB) restricts drug leakage into the brain. Therefore, it is crucial to take account of the specific characteristics of brain metastasis when developing new therapeutic strategies. Nanomaterials offer promising opportunities for targeted therapies in treating brain metastasis. They can be tailored and customized based on specific pathological features and incorporate various treatment approaches, which makes them advantageous in advancing therapeutic strategies for brain metastasis. This review provides an overview of current clinical treatment options for patients with brain metastasis. It also explores the roles and changes that different cells within the complex microenvironment play during tumor spread. Furthermore, it highlights the use of nanomaterials in current brain treatment approaches.
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Affiliation(s)
- Zhenhao Zhao
- Key Laboratory of Smart Drug Delivery, Ministry of Education, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Department of Pharmaceutics, School of Pharmacy, Fudan University, Shanghai 201203, China
| | - Yun Chen
- Key Laboratory of Smart Drug Delivery, Ministry of Education, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Department of Pharmaceutics, School of Pharmacy, Fudan University, Shanghai 201203, China
| | - Tao Sun
- Key Laboratory of Smart Drug Delivery, Ministry of Education, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Department of Pharmaceutics, School of Pharmacy, Fudan University, Shanghai 201203, China
| | - Chen Jiang
- Key Laboratory of Smart Drug Delivery, Ministry of Education, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Department of Pharmaceutics, School of Pharmacy, Fudan University, Shanghai 201203, China.
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Ishikawa Y, Umezawa R, Yamamoto T, Takahashi N, Takeda K, Suzuki Y, Kishida K, Teramura S, Ito K, Jingu K. Pre-treatment Evaluation of Patients Eligible for Whole Brain Radiation Therapy: The Risk of Hippocampal Metastases in a Retrospective Study of 248 Cases at a Single Institution. Cureus 2023; 15:e49170. [PMID: 38024024 PMCID: PMC10662202 DOI: 10.7759/cureus.49170] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/21/2023] [Indexed: 12/01/2023] Open
Abstract
Whole brain radiation therapy (WBRT) is effective for multiple brain metastases (BMs) but may impair neurocognitive function (NCF). The incidence of hippocampal metastasis (HM) is low, and the factors associated with the occurrence of HM remain unclear. This study aimed to assess the occurrence of limbic system metastasis (LSM), including HM, and to analyze the risk of HM. We retrospectively analyzed 248 patients who underwent three-dimensional conformal radiation therapy for BMs between May 2008 and October 2015. Gadolinium-enhanced brain MRI or CT scans were used for diagnosis. Statistical analysis involved assessing clinical factors, including age, gender, primary tumor, number of BMs, and maximum metastasis diameter, in relation to the presence of HMs using logistic regression and receiver operating characteristic (ROC) curve analysis. The median age at treatment was 62 years (range: 11-83 years). Primary lesion sites included the lung (n = 150; 60.5%), breast (n = 45; 18.1%), gastrointestinal tract (n = 18; 7.3%), and bone and soft tissue (n = 2; 0.8%). Histological cancer types included adenocarcinoma (n = 113; 45.6%), squamous cell carcinoma (n = 26; 10.5%), small cell carcinoma (n = 28; 11.3%), invasive ductal carcinoma (n = 35; 14.1%), sarcoma (n = 3; 1.2%), and others (n = 43; 17.3%). MRI or CT scans of the 248 patients were analyzed, indicating a total count of 2,163 brain metastases (median: five metastases per patient). HMs were identified in 18 (7.3%) patients. The most common location for LSMs was the cingulum/cingulate gyrus in 26 (10.5%) patients. In univariate and multivariate analyses, patients with 15 or fewer BMs had a significantly lower incidence of HMs (odds ratio (OR), 0.018 (95% confidence interval (CI), 0.030-0.24)) (p < 0.0001). A maximal tumor size of less than 2 cm significantly increased the incidence of HMs (OR, 13.8 (95%CI, 1.80-105.3)) (p = 0.0003). The presence of cingulum/cingulate gyrus metastases also demonstrated a significant increase in the incidence of HMs (OR, 9.42 (95%CI, 3.30-26.84)) (p < 0.0001). The present study has uncovered a novel association between a high number of metastases in the cingulate gyrus and the development of HMs. Patients with BMs eligible for WBRT with metastases in the cingulate gyrus may be at risk of developing HM.
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Affiliation(s)
- Yojiro Ishikawa
- Division of Radiology, Tohoku Medical and Pharmaceutical University, Sendai, JPN
- Department of Radiation Oncology, Tohoku University Graduate School of Medicine, Sendai, JPN
| | - Rei Umezawa
- Department of Radiation Oncology, Tohoku University Graduate School of Medicine, Sendai, JPN
| | - Takaya Yamamoto
- Department of Radiation Oncology, Tohoku University Graduate School of Medicine, Sendai, JPN
| | - Noriyoshi Takahashi
- Department of Radiation Oncology, Tohoku University Graduate School of Medicine, Sendai, JPN
| | - Kazuya Takeda
- Department of Radiation Oncology, South Miyagi Medical Center, Ogawara, JPN
| | - Yu Suzuki
- Department of Radiation Oncology, Tohoku University Graduate School of Medicine, Sendai, JPN
| | - Keita Kishida
- Department of Radiation Oncology, Tohoku University Graduate School of Medicine, Sendai, JPN
| | - Satoshi Teramura
- Division of Radiology, Tohoku Medical and Pharmaceutical University, Sendai, JPN
| | - Kengo Ito
- Division of Radiology, Tohoku Medical and Pharmaceutical University, Sendai, JPN
| | - Keiichi Jingu
- Department of Radiation Oncology, Tohoku University Graduate School of Medicine, Sendai, JPN
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Atallah O, Chaurasia B. Brain metastasis localized to the same area of infarction: illustrative case. JOURNAL OF NEUROSURGERY. CASE LESSONS 2023; 6:CASE23325. [PMID: 37581584 PMCID: PMC10555590 DOI: 10.3171/case23325] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Accepted: 07/10/2023] [Indexed: 08/16/2023]
Abstract
BACKGROUND Ischemic stroke and tumor account for a disproportionate share of deaths and disabilities among the elderly. Patients with a tumor who develop recurrent acute neurological deficits after a stroke can be at risk for tumor-related stroke. In contrast, brain metastases (BM) are common causes of neurological symptoms and are associated with a poor prognosis in patients with both malignancy and ischemic stroke. OBSERVATIONS The authors report a rare case of metastatic melanoma that manifested in the same region as a previous ischemic infarction. A 22-year-old female presented at our emergency department with right hemiparesis and sensory difficulties. Infarction in the left frontoparietal and basal ganglia regions was found on a computed tomography scan of the brain. A decompressive hemicraniectomy was performed urgently. After 16 years, a biopsy taken from her chin revealed malignant melanoma. Hemorrhagic metastasis on the frontal lobe of the brain was detected with magnetic resonance imaging and was histopathologically confirmed upon resection. LESSONS In addition to recurrence, BM may be considered when a person with ischemic stroke and a cancer such as melanoma has new neurological problems in one area that cannot be explained by the stroke.
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Affiliation(s)
- Oday Atallah
- Department of Neurosurgery, Hannover Medical School, Hannover, Germany; and
| | - Bipin Chaurasia
- Department of Neurosurgery, Neurosurgery Clinic, Birgunj, Nepal
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Chen M, Guo Y, Wang P, Chen Q, Bai L, Wang S, Su Y, Wang L, Gong G. An Effective Approach to Improve the Automatic Segmentation and Classification Accuracy of Brain Metastasis by Combining Multi-phase Delay Enhanced MR Images. J Digit Imaging 2023; 36:1782-1793. [PMID: 37259008 PMCID: PMC10406988 DOI: 10.1007/s10278-023-00856-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2023] [Revised: 05/16/2023] [Accepted: 05/18/2023] [Indexed: 06/02/2023] Open
Abstract
The objective of this study is to analyse the diffusion rule of the contrast media in multi-phase delayed enhanced magnetic resonance (MR) T1 images using radiomics and to construct an automatic classification and segmentation model of brain metastases (BM) based on support vector machine (SVM) and Dpn-UNet. A total of 189 BM patients with 1047 metastases were enrolled. Contrast-enhanced MR images were obtained at 1, 3, 5, 10, 18, and 20 min following contrast medium injection. The tumour target volume was delineated, and the radiomics features were extracted and analysed. BM segmentation and classification models in the MR images with different enhancement phases were constructed using Dpn-UNet and SVM, and differences in the BM segmentation and classification models with different enhancement times were compared. (1) The signal intensity for BM decreased with time delay and peaked at 3 min. (2) Among the 144 optimal radiomics features, 22 showed strong correlation with time (highest R-value = 0.82), while 41 showed strong correlation with volume (highest R-value = 0.99). (3) The average dice similarity coefficients of both the training and test sets were the highest at 10 min for the automatic segmentation of BM, reaching 0.92 and 0.82, respectively. (4) The areas under the curve (AUCs) for the classification of BM pathology type applying single-phase MRI was the highest at 10 min, reaching 0.674. The AUC for the classification of BM by applying the six-phase image combination was the highest, reaching 0.9596, and improved by 42.3% compared with that by applying single-phase images at 10 min. The dynamic changes of contrast media diffusion in BM can be reflected by multi-phase delayed enhancement based on radiomics, which can more objectively reflect the pathological types and significantly improve the accuracy of BM segmentation and classification.
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Affiliation(s)
- Mingming Chen
- Department of Radiation Physics, Shandong First Medical University Affiliated Cancer Hospital, Shandong Cancer Hospital and Institute (Shandong Cancer Hospital), Jinan, 250117, China
- College of Radiology, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, 250117, China
| | - Yujie Guo
- Department of Radiation Physics, Shandong First Medical University Affiliated Cancer Hospital, Shandong Cancer Hospital and Institute (Shandong Cancer Hospital), Jinan, 250117, China
| | - Pengcheng Wang
- College of Radiology, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, 250117, China
| | - Qi Chen
- MedMind Technology Co., Ltd, 100084, Beijing, China
| | - Lu Bai
- MedMind Technology Co., Ltd, 100084, Beijing, China
| | - Shaobin Wang
- MedMind Technology Co., Ltd, 100084, Beijing, China
| | - Ya Su
- Department of Radiation Physics, Shandong First Medical University Affiliated Cancer Hospital, Shandong Cancer Hospital and Institute (Shandong Cancer Hospital), Jinan, 250117, China
| | - Lizhen Wang
- Department of Radiation Physics, Shandong First Medical University Affiliated Cancer Hospital, Shandong Cancer Hospital and Institute (Shandong Cancer Hospital), Jinan, 250117, China
| | - Guanzhong Gong
- Department of Radiation Physics, Shandong First Medical University Affiliated Cancer Hospital, Shandong Cancer Hospital and Institute (Shandong Cancer Hospital), Jinan, 250117, China.
- Department of Engineering Physics, Tsing Hua University, Beijing, 100084, China.
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10
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Zhu D, Shao Y, Yang Z, Cheng A, Xi Q, Liang X, Chu S. Magnetic resonance imaging characteristics of brain metastases in small cell lung cancer. Cancer Med 2023; 12:15199-15206. [PMID: 37288842 PMCID: PMC10417172 DOI: 10.1002/cam4.6206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Revised: 05/13/2023] [Accepted: 05/23/2023] [Indexed: 06/09/2023] Open
Abstract
BACKGROUND Lung is the most common primary site of brain metastases (BMs). For different pathological types of BMs have some similar characteristics, it is still a challenge to confirm the origin based on their characteristics directly. BMs of small cell lung cancer (SCLC) have favorable therapeutic expectations due to their high sensitivity to radiotherapy. This study sought to identify unique characteristics of BMs in SCLC, aiming to assist in clinical decision-making. METHODS Patients diagnosed with BMs of lung cancer who received radiotherapy from January 2017 to January 2022 were reviewed (N = 284). Definitive diagnosis of BMs of SCLC was reached for 36 patients. All patients underwent head examination using magnetic resonance imaging. The number, size, location, and signal characteristics of lesions were analyzed. RESULTS There were 7 and 29 patients with single focus and non-single focus, respectively. Ten patients had diffuse lesions, and the remaining 26 patients had a total of 90 lesions. These lesions were divided into three groups according to size: <1, 1-3, and >3 cm (43.33%, 53.34%, and 3.33%, respectively). Sixty-six lesions were located in the supratentorial area, primarily including cortical and subcortical lesions (55.56%) and deep brain lesions (20%). Moreover, 22 lesions were located in the infratentorial area. According to diffusion-weighted imaging and T1-weighted contrast enhancement, the imaging characteristics were classified into six patterns. Hyperintensity in diffusion-weighted imaging and homogeneous enhancement was the most common pattern of BMs in SCLC (46.67%), while partial lesions showed hyperintensity in diffusion-weighted imaging without enhancement (7.78%). CONCLUSIONS The manifestations of BMs in SCLC were multiple lesions (diameter: 1-3 cm), hyperintensity in diffusion-weighted imaging, and homogeneous enhancement. Interestingly, hyperintensity in diffusion-weighted imaging without enhancement was also one of the characteristics.
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Affiliation(s)
- Dan Zhu
- Department of Radiology, Shanghai East HospitalTongji University School of MedicineShanghaiChina
| | - Yongjia Shao
- Department of Radiology, Shanghai East HospitalTongji University School of MedicineShanghaiChina
| | - Zhangwei Yang
- Department of Radiology, Shanghai East HospitalTongji University School of MedicineShanghaiChina
| | - Ailan Cheng
- Department of Radiology, Shanghai East HospitalTongji University School of MedicineShanghaiChina
| | - Qian Xi
- Department of Radiology, Shanghai East HospitalTongji University School of MedicineShanghaiChina
| | - Xiaohua Liang
- Department of Oncology, Shanghai Huashan HospitalFudan University School of MedicineShanghaiChina
| | - Shuguang Chu
- Department of Radiology, Shanghai East HospitalTongji University School of MedicineShanghaiChina
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11
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Popp I, Hartong NE, Nieder C, Grosu AL. PRO: Do We Still Need Whole-Brain Irradiation for Brain Metastases? Cancers (Basel) 2023; 15:3193. [PMID: 37370802 DOI: 10.3390/cancers15123193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2023] [Revised: 06/12/2023] [Accepted: 06/13/2023] [Indexed: 06/29/2023] Open
Abstract
(1) Background: In recent decades, the use of whole-brain radiation therapy (WBRT) in the treatment of brain metastases has significantly decreased, with clinicians fearing adverse neurocognitive events and data showing limited efficacy regarding local tumor control and overall survival. The present study thus aimed to reassess the role that WBRT holds in the treatment of brain metastases. (2) Methods: This review summarizes the available evidence from 1990 until today supporting the use of WBRT, as well as new developments in WBRT and their clinical implications. (3) Results: While one to four brain metastases should be exclusively treated with radiosurgery, WBRT does remain an option for patients with multiple metastases. In particular, hippocampus-avoidance WBRT, WBRT with dose escalation to the metastases, and their combination have shown promising results and offer valid alternatives to local stereotactic radiotherapy. Ongoing and published prospective trials on the efficacy and toxicity of these new methods are presented. (4) Conclusions: Unlike conventional WBRT, which has limited indications, modern WBRT techniques continue to have a significant role to play in the treatment of multiple brain metastases. In which situations radiosurgery or WBRT should be the first option should be investigated in further studies. Until then, the therapeutic decision must be made individually depending on the oncological context.
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Affiliation(s)
- Ilinca Popp
- Department of Radiation Oncology, Medical Center-University of Freiburg, Faculty of Medicine, University of Freiburg, 79106 Freiburg, Germany
- German Cancer Consortium (DKTK), German Cancer Research Center (DKFZ), Partner Site Freiburg, 69120 Heidelberg, Germany
| | - Nanna E Hartong
- Department of Radiation Oncology, Medical Center-University of Freiburg, Faculty of Medicine, University of Freiburg, 79106 Freiburg, Germany
- German Cancer Consortium (DKTK), German Cancer Research Center (DKFZ), Partner Site Freiburg, 69120 Heidelberg, Germany
| | - Carsten Nieder
- Department of Oncology and Palliative Medicine, Nordland Hospital, 8092 Bodø, Norway
- Department of Clinical Medicine, Faculty of Health Sciences, UiT-The Arctic University of Norway, 9037 Tromsø, Norway
| | - Anca-L Grosu
- Department of Radiation Oncology, Medical Center-University of Freiburg, Faculty of Medicine, University of Freiburg, 79106 Freiburg, Germany
- German Cancer Consortium (DKTK), German Cancer Research Center (DKFZ), Partner Site Freiburg, 69120 Heidelberg, Germany
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12
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van Schie P, Rijksen BLT, Bot M, Wiersma T, Merckel LG, Brandsma D, Compter A, de Witt Hamer PC, Post R, Borst GR. Optimizing treatment of brain metastases in an era of novel systemic treatments: a single center consecutive series. J Neurooncol 2023:10.1007/s11060-023-04343-1. [PMID: 37266846 PMCID: PMC10322956 DOI: 10.1007/s11060-023-04343-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Accepted: 05/12/2023] [Indexed: 06/03/2023]
Abstract
BACKGROUND The multidisciplinary management of patients with brain metastases consists of surgical resection, radiation treatment and systemic treatment. Tailoring and timing these treatment modalities is challenging. This study presents real-world data from consecutively treated patients and assesses the impact of all treatment strategies and their relation with survival. The aim is to provide new insights to improve multidisciplinary decisions towards individualized treatment strategies in patients with brain metastases. METHODS A retrospective consecutive cohort study was performed. Patients with brain metastases were included between June 2018 and May 2020. Brain metastases of small cell lung carcinoma were excluded. Overall survival was analyzed in multivariable models. RESULTS 676 patients were included in the study, 596 (88%) received radiotherapy, 41 (6%) awaited the effect of newly started or switched systemic treatment and 39 (6%) received best supportive care. Overall survival in the stereotactic radiotherapy group was 14 months (IQR 5-32) and 32 months (IQR 11-43) in patients who started or switched systemic treatment and initially did not receive radiotherapy. In patients with brain metastases without options for local or systemic treatment best supportive care was provided, these patients had an overall survival of 0 months (IQR 0-1). Options for systemic treatment, Karnofsky Performance Score ≥ 70 and breast cancer were prognostic for a longer overall survival, while progressive extracranial metastases and whole-brain-radiotherapy were prognostic for shorter overall survival. CONCLUSIONS Assessing prognosis in light of systemic treatment options is crucial after the diagnosis of brain metastasis for the consideration of radiotherapy versus best supportive care.
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Affiliation(s)
- P van Schie
- Department of Neurosurgery, Amsterdam UMC, Vrije Universiteit Amsterdam, De Boelelaan 1117, Amsterdam, The Netherlands
| | - B L T Rijksen
- Department of Radiation Oncology, Netherlands Cancer Institute - Antoni van Leeuwenhoek, Plesmanlaan 121, 1066 CX, Amsterdam, The Netherlands
| | - M Bot
- Department of Neurosurgery, Amsterdam UMC location University of Amsterdam, Meibergdreef 9, Amsterdam, The Netherlands
| | - T Wiersma
- Department of Radiation Oncology, Netherlands Cancer Institute - Antoni van Leeuwenhoek, Plesmanlaan 121, 1066 CX, Amsterdam, The Netherlands
| | - L G Merckel
- Department of Radiation Oncology, Netherlands Cancer Institute - Antoni van Leeuwenhoek, Plesmanlaan 121, 1066 CX, Amsterdam, The Netherlands
| | - D Brandsma
- Department of Neurology, Netherlands Cancer Institute - Antoni van Leeuwenhoek, Plesmanlaan 121, 1066 CX, Amsterdam, The Netherlands
| | - A Compter
- Department of Neurology, Netherlands Cancer Institute - Antoni van Leeuwenhoek, Plesmanlaan 121, 1066 CX, Amsterdam, The Netherlands
| | - P C de Witt Hamer
- Department of Neurosurgery, Amsterdam UMC, Vrije Universiteit Amsterdam, De Boelelaan 1117, Amsterdam, The Netherlands
- Cancer Center Amsterdam, Amsterdam, The Netherlands
| | - R Post
- Department of Neurosurgery, Amsterdam UMC location University of Amsterdam, Meibergdreef 9, Amsterdam, The Netherlands.
- Amsterdam Neuroscience, Amsterdam, The Netherlands.
- Cancer Center Amsterdam, Amsterdam, The Netherlands.
- Department of Neurosurgery, Amsterdam University Medical Centres, Location AMC, PO Box 22660, 1100 DD, Amsterdam, The Netherlands.
| | - G R Borst
- Department of Radiation Oncology, Netherlands Cancer Institute - Antoni van Leeuwenhoek, Plesmanlaan 121, 1066 CX, Amsterdam, The Netherlands.
- Division of Cancer Sciences, School of Medical Sciences, School of Biological Sciences, Faculty of Biology, Medicine and Health & Manchester Cancer Research Centre, Manchester Academic Health Science Centre (MAHSC), University of Manchester, Manchester, UK.
- Departments of Clinical Oncology, The Christie NHS Foundation Trust, Manchester, UK.
- Department of Radiotherapy Related Research, The Christie NHS Foundation Trust, Dept 58, Floor 2a, Room 21-2-13, Wilmslow Road, Manchester, M20 4BX, UK.
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13
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Wu JR, Hernandez Y, Miyasaki KF, Kwon EJ. Engineered nanomaterials that exploit blood-brain barrier dysfunction fordelivery to the brain. Adv Drug Deliv Rev 2023; 197:114820. [PMID: 37054953 DOI: 10.1016/j.addr.2023.114820] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Revised: 03/30/2023] [Accepted: 04/04/2023] [Indexed: 04/15/2023]
Abstract
The blood-brain barrier (BBB) is a highly regulated physical and functional boundarythat tightly controls the transport of materials between the blood and the brain. There is an increasing recognition that the BBB is dysfunctional in a wide range of neurological disorders; this dysfunction can be symptomatic of the disease but can also play a role in disease etiology. BBB dysfunction can be exploited for the delivery of therapeutic nanomaterials. Forexample, there can be a transient, physical disruption of the BBB in diseases such as brain injury and stroke, which allows temporary access of nanomaterials into the brain. Physicaldisruption of the BBB through external energy sources is now being clinically pursued toincrease therapeutic delivery into the brain. In other diseases, the BBB takes on new properties that can beleveraged by delivery carriers. For instance, neuroinflammation induces the expression ofreceptors on the BBB that can be targeted by ligand-modified nanomaterials and theendogenous homing of immune cells into the diseased brain can be hijacked for the delivery ofnanomaterials. Lastly, BBB transport pathways can be altered to increase nanomaterial transport. In this review, we will describe changes that can occur in the BBB in disease, and how these changes have been exploited by engineered nanomaterials forincreased transport into the brain.
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Affiliation(s)
- Jason R Wu
- Department of Bioengineering, University of California San Diego, La Jolla, CA
| | - Yazmin Hernandez
- Department of Bioengineering, University of California San Diego, La Jolla, CA
| | - Katelyn F Miyasaki
- Department of Bioengineering, University of California San Diego, La Jolla, CA
| | - Ester J Kwon
- Department of Bioengineering, University of California San Diego, La Jolla, CA; Sanford Consortium for Regenerative Medicine.
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14
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Alimonti P, Gonzalez Castro LN. The Current Landscape of Immune Checkpoint Inhibitor Immunotherapy for Primary and Metastatic Brain Tumors. Antibodies (Basel) 2023; 12:antib12020027. [PMID: 37092448 PMCID: PMC10123751 DOI: 10.3390/antib12020027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2022] [Revised: 02/14/2023] [Accepted: 03/27/2023] [Indexed: 04/25/2023] Open
Abstract
Antibodies against immune checkpoint inhibitors (ICIs) have revolutionized the treatment of multiple aggressive malignancies, including melanoma and non-small cell lung cancer. ICIs for the treatment of primary and metastatic brain tumors have been used with varying degrees of success. Here, we discuss the available evidence for the use of ICIs in the treatment of primary and metastatic brain tumors, highlighting challenges and opportunities for furthering this type of cancer immunotherapy in neuro-oncology.
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Affiliation(s)
- Paolo Alimonti
- Department of Medicine, Vita-Salute San Raffaele University, Via Olgettina, 58, 20132 Milano, Italy
| | - L Nicolas Gonzalez Castro
- Center for Neuro-Oncology, Dana-Farber Cancer Institute, Department of Neurology, Brigham and Women's Hospital, Harvard Medical School, 25 Shattuck Street, Boston, MA 02115, USA
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15
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Sun S, Krishnan M, Alcorn S. Prognostication for Patients Receiving Palliative Radiation Therapy. Semin Radiat Oncol 2023; 33:104-113. [PMID: 36990628 DOI: 10.1016/j.semradonc.2023.01.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/29/2023]
Abstract
Estimation of patient prognosis plays a central role in guiding decision making for the palliative management of metastatic disease, and a number of statistical models have been developed to provide survival estimates for patients in this context. In this review, we discuss several well-validated survival prediction models for patients receiving palliative radiotherapy to sites outside of the brain. Key considerations include the type of statistical model, model performance measures and validation procedures, studies' source populations, time points used for prognostication, and details of model output. We then briefly discuss underutilization of these models, the role of decision support aids, and the need to incorporate patient preference in shared decision making for patients with metastatic disease who are candidates for palliative radiotherapy.
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16
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Straehla JP, Reardon DA, Wen PY, Agar NYR. The Blood-Brain Barrier: Implications for Experimental Cancer Therapeutics. ANNUAL REVIEW OF CANCER BIOLOGY 2023; 7:265-289. [PMID: 38323268 PMCID: PMC10846865 DOI: 10.1146/annurev-cancerbio-061421-040433] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 02/08/2024]
Abstract
The blood-brain barrier is critically important for the treatment of both primary and metastatic cancers of the central nervous system (CNS). Clinical outcomes for patients with primary CNS tumors are poor and have not significantly improved in decades. As treatments for patients with extracranial solid tumors improve, the incidence of CNS metastases is on the rise due to suboptimal CNS exposure of otherwise systemically active agents. Despite state-of-the art surgical care and increasingly precise radiation therapy, clinical progress is limited by the ability to deliver an effective dose of a therapeutic agent to all cancerous cells. Given the tremendous heterogeneity of CNS cancers, both across cancer subtypes and within a single tumor, and the range of diverse therapies under investigation, a nuanced examination of CNS drug exposure is needed. With a shared goal, common vocabulary, and interdisciplinary collaboration, the field is poised for renewed progress in the treatment of CNS cancers.
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Affiliation(s)
- Joelle P Straehla
- Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, Massachusetts, USA
- Division of Hematology/Oncology, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts, USA
- Koch Institute for Integrative Cancer Research at MIT, Cambridge, Massachusetts, USA
| | - David A Reardon
- Center for Neuro-Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, Massachusetts, USA
- Department of Internal Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Patrick Y Wen
- Center for Neuro-Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, Massachusetts, USA
- Department of Neurology, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Nathalie Y R Agar
- Department of Neurosurgery and Department of Radiology, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA
- Department of Cancer Biology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, Massachusetts, USA
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17
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Harris WJ, Asselin MC, Hinz R, Parkes LM, Allan S, Schiessl I, Boutin H, Dickie BR. In vivo methods for imaging blood-brain barrier function and dysfunction. Eur J Nucl Med Mol Imaging 2023; 50:1051-1083. [PMID: 36437425 PMCID: PMC9931809 DOI: 10.1007/s00259-022-05997-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Accepted: 10/09/2022] [Indexed: 11/29/2022]
Abstract
The blood-brain barrier (BBB) is the interface between the central nervous system and systemic circulation. It tightly regulates what enters and is removed from the brain parenchyma and is fundamental in maintaining brain homeostasis. Increasingly, the BBB is recognised as having a significant role in numerous neurological disorders, ranging from acute disorders (traumatic brain injury, stroke, seizures) to chronic neurodegeneration (Alzheimer's disease, vascular dementia, small vessel disease). Numerous approaches have been developed to study the BBB in vitro, in vivo, and ex vivo. The complex multicellular structure and effects of disease are difficult to recreate accurately in vitro, and functional aspects of the BBB cannot be easily studied ex vivo. As such, the value of in vivo methods to study the intact BBB cannot be overstated. This review discusses the structure and function of the BBB and how these are affected in diseases. It then discusses in depth several established and novel methods for imaging the BBB in vivo, with a focus on MRI, nuclear imaging, and high-resolution intravital fluorescence microscopy.
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Affiliation(s)
- William James Harris
- Geoffrey Jefferson Brain Research Centre, Manchester Academic Health Science Centre, Northern Care Alliance & University of Manchester, Manchester, UK
- Division of Neuroscience, School of Biological Sciences, Faculty of Biology, Medicine and Health, University of Manchester, M13 9PL, Manchester, UK
| | - Marie-Claude Asselin
- Division of Informatics, Imaging and Data Sciences, School of Health Sciences, University of Manchester, Manchester, UK
| | - Rainer Hinz
- Wolfson Molecular Imaging Centre, University of Manchester, Manchester, UK
| | - Laura Michelle Parkes
- Geoffrey Jefferson Brain Research Centre, Manchester Academic Health Science Centre, Northern Care Alliance & University of Manchester, Manchester, UK
- Division of Neuroscience, School of Biological Sciences, Faculty of Biology, Medicine and Health, University of Manchester, M13 9PL, Manchester, UK
| | - Stuart Allan
- Geoffrey Jefferson Brain Research Centre, Manchester Academic Health Science Centre, Northern Care Alliance & University of Manchester, Manchester, UK
- Division of Neuroscience, School of Biological Sciences, Faculty of Biology, Medicine and Health, University of Manchester, M13 9PL, Manchester, UK
| | - Ingo Schiessl
- Geoffrey Jefferson Brain Research Centre, Manchester Academic Health Science Centre, Northern Care Alliance & University of Manchester, Manchester, UK
- Division of Neuroscience, School of Biological Sciences, Faculty of Biology, Medicine and Health, University of Manchester, M13 9PL, Manchester, UK
| | - Herve Boutin
- Geoffrey Jefferson Brain Research Centre, Manchester Academic Health Science Centre, Northern Care Alliance & University of Manchester, Manchester, UK.
- Division of Neuroscience, School of Biological Sciences, Faculty of Biology, Medicine and Health, University of Manchester, M13 9PL, Manchester, UK.
- Wolfson Molecular Imaging Centre, University of Manchester, Manchester, UK.
| | - Ben Robert Dickie
- Geoffrey Jefferson Brain Research Centre, Manchester Academic Health Science Centre, Northern Care Alliance & University of Manchester, Manchester, UK
- Division of Informatics, Imaging and Data Sciences, School of Health Sciences, University of Manchester, Manchester, UK
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18
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Miao J, Xu Y, Dai J. Optimization of isocenter position for multiple targets with nonuniform-margin expansion. J Appl Clin Med Phys 2023; 24:e13853. [PMID: 36924428 PMCID: PMC10018668 DOI: 10.1002/acm2.13853] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Revised: 05/13/2022] [Accepted: 11/02/2022] [Indexed: 11/23/2022] Open
Abstract
PURPOSE The single isocenter for multiple-target (SIMT) technique has become a popular treatment technique for multiple brain metastases. We have implemented a method to obtain a nonuniform margin for SIMT technique. In this study, we further propose a method to determine the isocenter position so that the total expanded margin volume is minimal. MATERIALS AND METHOD Based on a statistical model, the relationship between nonuniform margin and the distance d (from isocenter to target point), setup uncertainties, and significance level was established. Due to the existence of rotational error, there is a nonlinear relationship between the margin volume and the isocenter position. Using numerical simulation, we study the relationship between optimal isocenter position and translational error, rotational error, and target size. In order to find the optimal isocenter position quickly, adaptive simulated annealing (ASA) algorithm was used. This method was implemented in the Pinnacle3 treatment planning system and compared with isocenter at center-of-geometric (COG), center-of-volume (COV), and center-of-surface (COS). Ten patients with multiple brain metastasis targets treated with the SIMT technique was selected for evaluation. RESULTS When the size of tumors is equal, the optimal isocenter obtained by ASA and numerical simulation coincides with COG, COV, and COS. When the size of tumors is different, the optimal isocenter is close to the large tumor. The position of COS point is closer to the optimal point than the COV point for nearly all cases. Moreover, in some cases the COS point can be approximately selected as the optimal point. The ASA algorithm can reduce the calculating time from several hours to tens of seconds for three or more tumors. Using multiple brain metastases targets, a series of volume difference and calculating time were obtained for various tumor number, tumor size, and separation distances. Compared with the margin volume with isocenter at COG, the margin volume for optimal point can be reduced by up to 27.7%. CONCLUSION Optimal treatment isocenter selection of multiple targets with large differences could reduce the total margin volume. ASA algorithm can significantly improve the speed of finding the optimal isocenter. This method can be used for clinical isocenter selection and is useful for the protection of normal tissue nearby.
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Affiliation(s)
- Junjie Miao
- Department of Radiation OncologyNational Cancer Center/National Clinical Research Center for Cancer/Cancer HospitalChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijingChina
| | - Yingjie Xu
- Department of Radiation OncologyNational Cancer Center/National Clinical Research Center for Cancer/Cancer HospitalChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijingChina
| | - Jianrong Dai
- Department of Radiation OncologyNational Cancer Center/National Clinical Research Center for Cancer/Cancer HospitalChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijingChina
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19
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Bassey-Archibong BI, Rajendra Chokshi C, Aghaei N, Kieliszek AM, Tatari N, McKenna D, Singh M, Kalpana Subapanditha M, Parmar A, Mobilio D, Savage N, Lam F, Tokar T, Provias J, Lu Y, Chafe SC, Swanton C, Hynds RE, Venugopal C, Singh SK. An HLA-G/SPAG9/STAT3 axis promotes brain metastases. Proc Natl Acad Sci U S A 2023; 120:e2205247120. [PMID: 36780531 PMCID: PMC9974476 DOI: 10.1073/pnas.2205247120] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Accepted: 09/18/2022] [Indexed: 02/15/2023] Open
Abstract
Brain metastases (BM) are the most common brain neoplasm in adults. Current BM therapies still offer limited efficacy and reduced survival outcomes, emphasizing the need for a better understanding of the disease. Herein, we analyzed the transcriptional profile of brain metastasis initiating cells (BMICs) at two distinct stages of the brain metastatic cascade-the "premetastatic" or early stage when they first colonize the brain and the established macrometastatic stage. RNA sequencing was used to obtain the transcriptional profiles of premetastatic and macrometastatic (non-premetastatic) lung, breast, and melanoma BMICs. We identified that lung, breast, and melanoma premetastatic BMICs share a common transcriptomic signature that is distinct from their non-premetastatic counterparts. Importantly, we show that premetastatic BMICs exhibit increased expression of HLA-G, which we further demonstrate functions in an HLA-G/SPAG9/STAT3 axis to promote the establishment of brain metastatic lesions. Our findings suggest that unraveling the molecular landscape of premetastatic BMICs allows for the identification of clinically relevant targets that can possibly inform the development of preventive and/or more efficacious BM therapies.
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Affiliation(s)
| | - Chirayu Rajendra Chokshi
- Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, ON, L8S 4K1, Canada
| | - Nikoo Aghaei
- Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, ON, L8S 4K1, Canada
| | - Agata Monika Kieliszek
- Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, ON, L8S 4K1, Canada
| | - Nazanin Tatari
- Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, ON, L8S 4K1, Canada
| | - Dillon McKenna
- Department of Surgery, McMaster University, Hamilton, ON, L8S 4K1, Canada
| | - Mohini Singh
- Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, ON, L8S 4K1, Canada
| | | | - Arun Parmar
- Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, ON, L8S 4K1, Canada
| | - Daniel Mobilio
- Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, ON, L8S 4K1, Canada
| | - Neil Savage
- Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, ON, L8S 4K1, Canada
| | - Fred Lam
- Department of Surgery, Division of Neurosurgery, McMaster University Faculty of Health Sciences, Hamilton General Hospital, Hamilton, ON, L8S 4K1, Canada
| | - Tomas Tokar
- Osteoarthritis Research Program, Division of Orthopedic Surgery, Schroeder Arthritis Institute, University Health Network, Toronto, ON, M5T 2S8, Canada
- Data Science Discovery Centre for Chronic Diseases, Krembil Research Institute, University Health Network, Toronto, ON, M5T 2S8, Canada
| | - John Provias
- Department of Anatomical Pathology (Neuropathology), Hamilton General Hospital, Hamilton, ON, L8L 2X2, Canada
- Department of Pathology and Molecular Medicine, Faculty of Health Sciences, McMaster University, Hamilton, ON, L8S 4K1, Canada
| | - Yu Lu
- Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, ON, L8S 4K1, Canada
| | | | - Charles Swanton
- The Cancer Research UK (CRUK) Lung Cancer Centre of Excellence, University College London (UCL) Cancer Institute, University College London, London, WC1E 6DD, United Kingdom
- Cancer Evolution and Genome Instability Laboratory, The Francis Crick Institute, London, NW1 1AT, United Kingdom
| | - Robert Edward Hynds
- The Cancer Research UK (CRUK) Lung Cancer Centre of Excellence, University College London (UCL) Cancer Institute, University College London, London, WC1E 6DD, United Kingdom
- Cancer Evolution and Genome Instability Laboratory, The Francis Crick Institute, London, NW1 1AT, United Kingdom
| | - Chitra Venugopal
- Department of Surgery, McMaster University, Hamilton, ON, L8S 4K1, Canada
| | - Sheila Kumari Singh
- Department of Surgery, McMaster University, Hamilton, ON, L8S 4K1, Canada
- Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, ON, L8S 4K1, Canada
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20
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The Journey of Cancer Cells to the Brain: Challenges and Opportunities. Int J Mol Sci 2023; 24:ijms24043854. [PMID: 36835266 PMCID: PMC9967224 DOI: 10.3390/ijms24043854] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 02/09/2023] [Accepted: 02/10/2023] [Indexed: 02/17/2023] Open
Abstract
Cancer metastases into the brain constitute one of the most severe, but not uncommon, manifestations of cancer progression. Several factors control how cancer cells interact with the brain to establish metastasis. These factors include mediators of signaling pathways participating in migration, infiltration of the blood-brain barrier, interaction with host cells (e.g., neurons, astrocytes), and the immune system. Development of novel therapies offers a glimpse of hope for increasing the diminutive life expectancy currently forecasted for patients suffering from brain metastasis. However, applying these treatment strategies has not been sufficiently effective. Therefore, there is a need for a better understanding of the metastasis process to uncover novel therapeutic targets. In this review, we follow the journey of various cancer cells from their primary location through the diverse processes that they undergo to colonize the brain. These processes include EMT, intravasation, extravasation, and infiltration of the blood-brain barrier, ending up with colonization and angiogenesis. In each phase, we focus on the pathways engaging molecules that potentially could be drug target candidates.
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21
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Admojo L, Korte J, Anderson N, Phillips C, Caspersz L, Lasocki A. Investigating the role of delayed contrast magnetic resonance imaging (MRI) to differentiate radiation necrosis from tumour recurrence in brain metastases after stereotactic radiosurgery. J Med Imaging Radiat Oncol 2023; 67:292-298. [PMID: 36650724 DOI: 10.1111/1754-9485.13504] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Accepted: 12/21/2022] [Indexed: 01/19/2023]
Abstract
INTRODUCTION The incidence of radionecrosis (RN) after stereotactic radiosurgery (SRS) to brain metastases is increasing. An overlap in the conventional MRI appearances of RN and tumour recurrence (TR) is diagnostically challenging. Delayed contrast MRI compares contrast enhancement over two time periods to create treatment response assessment maps (TRAMs). We aim to assess the utility of TRAMs in brain metastases patients. METHODS Delayed contrast MRI scans were performed on ten brain metastases patients, previously treated with SRS, who developed equivocal lesion(s) on routine MRI follow-up. T1-weighted images were obtained five minutes and 60-75 min after contrast injection, followed by Brain Lab software analysis to create TRAMs. TRAMs patterns were then compared with the patient's clinical status, subsequent imaging, and histology results. RESULTS We identified three regions on TRAMs: central, peripheral, and surrounding. Each region could be described either as contrast accumulation (red colour and representing non-tumour tissue) or contrast clearance (blue colour and representing tumour tissue). Our analysis demonstrated similarities in the TRAMs pattern between TR and RN, though to varying degrees. CONCLUSION In conclusion, the TRAMs appearances of RN and TR overlap. Our findings suggest that the previously-described correlation between contrast clearance and TR is at least partially attributable to more solid initial enhancement, rather than convincingly a difference in the underlying tissue properties, and the additional diagnostic value of TRAMs may be limited. Thus, further research on TRAMs is necessary prior to incorporating it into routine clinical management after SRS for brain metastases.
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Affiliation(s)
- Lorenztino Admojo
- Department of Radiation Oncology, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia.,Austin Health, Melbourne, Victoria, Australia
| | - James Korte
- Department of Physical Science, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia.,Department of Biomedical Engineering, University of Melbourne, Melbourne, Victoria, Australia
| | - Nigel Anderson
- Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, Victoria, Australia.,Radiation Therapy Services, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
| | - Claire Phillips
- Department of Radiation Oncology, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia.,Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, Victoria, Australia
| | - Lauren Caspersz
- Department of Cancer Imaging, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
| | - Arian Lasocki
- Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, Victoria, Australia.,Department of Cancer Imaging, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
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22
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Entenberg D, Oktay MH, Condeelis JS. Intravital imaging to study cancer progression and metastasis. Nat Rev Cancer 2023; 23:25-42. [PMID: 36385560 PMCID: PMC9912378 DOI: 10.1038/s41568-022-00527-5] [Citation(s) in RCA: 28] [Impact Index Per Article: 28.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 10/11/2022] [Indexed: 11/17/2022]
Abstract
Navigation through the bulk tumour, entry into the blood vasculature, survival in the circulation, exit at distant sites and resumption of proliferation are all steps necessary for tumour cells to successfully metastasize. The ability of tumour cells to complete these steps is highly dependent on the timing and sequence of the interactions that these cells have with the tumour microenvironment (TME), including stromal cells, the extracellular matrix and soluble factors. The TME thus plays a major role in determining the overall metastatic phenotype of tumours. The complexity and cause-and-effect dynamics of the TME cannot currently be recapitulated in vitro or inferred from studies of fixed tissue, and are best studied in vivo, in real time and at single-cell resolution. Intravital imaging (IVI) offers these capabilities, and recent years have been a time of immense growth and innovation in the field. Here we review some of the recent advances in IVI of mammalian models of cancer and describe how IVI is being used to understand cancer progression and metastasis, and to develop novel treatments and therapies. We describe new techniques that allow access to a range of tissue and cancer types, novel fluorescent reporters and biosensors that allow fate mapping and the probing of functional and phenotypic states, and the clinical applications that have arisen from applying these techniques, reporters and biosensors to study cancer. We finish by presenting some of the challenges that remain in the field, how to address them and future perspectives.
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Affiliation(s)
- David Entenberg
- Gruss Lipper Biophotonics Center, Albert Einstein College of Medicine/Montefiore Medical Center, Bronx, NY, USA.
- Integrated Imaging Program, Albert Einstein College of Medicine/Montefiore Medical Center, Bronx, NY, USA.
- Department of Pathology, Albert Einstein College of Medicine/Montefiore Medical Center, Bronx, NY, USA.
| | - Maja H Oktay
- Gruss Lipper Biophotonics Center, Albert Einstein College of Medicine/Montefiore Medical Center, Bronx, NY, USA.
- Integrated Imaging Program, Albert Einstein College of Medicine/Montefiore Medical Center, Bronx, NY, USA.
- Department of Pathology, Albert Einstein College of Medicine/Montefiore Medical Center, Bronx, NY, USA.
- Department of Surgery, Albert Einstein College of Medicine/Montefiore Medical Center, Bronx, NY, USA.
| | - John S Condeelis
- Gruss Lipper Biophotonics Center, Albert Einstein College of Medicine/Montefiore Medical Center, Bronx, NY, USA.
- Integrated Imaging Program, Albert Einstein College of Medicine/Montefiore Medical Center, Bronx, NY, USA.
- Department of Surgery, Albert Einstein College of Medicine/Montefiore Medical Center, Bronx, NY, USA.
- Department of Cell Biology, Albert Einstein College of Medicine/Montefiore Medical Center, Bronx, NY, USA.
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23
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Direct dosimetric comparison of linear accelerator vs. Gamma Knife fractionated stereotactic radiotherapy (fSRT) of large brain tumors. Med Dosim 2022; 48:31-36. [PMID: 36503990 DOI: 10.1016/j.meddos.2022.09.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2022] [Revised: 08/19/2022] [Accepted: 09/29/2022] [Indexed: 12/13/2022]
Abstract
The purpose of this study was to directly compare the plan quality of Gamma Knife (GK) (Elekta, Stockholm, Sweden)- vs linear accelerator (LINAC)-based delivery techniques for fractionated stereotactic radiotherapy (fSRT) of large brain metastases. Eighteen patients with clinical target volumes (CTVs) larger than 9.5 cc were selected to generate comparative plans for the prescription dose of 9 Gy × 3 fractions, utilizing the Eclipse (Varian, Palo Alto, US) vs Leksell GammaPlan (LGP) (Elekta, Stockholm, Sweden) treatment planning systems (TPS). Each GK plan was first developed using LGP's automatic planning, followed by manual adjustments/refinements. The same MRI and structures, including CTVs and organs at risk, were then DICOM-transferred to the Eclipse TPS. Volumetric Modulated Arc Therapy (VMAT) and Dynamic Conformal Arc (DCA) plans for a Truebeam, with high-definition multi-leaf collimators (MLCs), were developed on these MR images and structures using a single isocenter and 3 non-coplanar arcs. No planning target volume (PTV) margins were added, and no heterogeneity correction was used for either TPS. GK plans were prescribed to the 50% isodose line, and Eclipse VMAT and DCA plans allowed a maximum dose up to 170% and ∼125%, respectively. Gradient index (GI), Paddick Conformity Index (PCI), V20GyRind, and V4GyRind of all 3 techniques were calculated and compared. One-way analysis of variance (ANOVA) was performed to determine the statistical significance of the differences of these planning indices for the 3 planning techniques. A total of eighteen treatment targets were analyzed. Median CTV volume was 14.4 cc (range 9.5 cc - 55.9 cc). Mean ± standard deviation of PCI were 0.85 ± 0.03, 0.90 ± 0.03, and 0.72 ± 0.11 for GK, VMAT and DCA plans, respectively. They were respectively 2.64 ± 0.17, 2.46 ± 0.18, and 2.83 ± 0.48 for GI; 15.33 ± 8.45 cc, 10.47 ± 4.32 cc and 23.51 ± 16 cc for V20GyRind; and 316.28 ± 138.35 cc, 317.81 ± 108.21 cc, and 394.85 ± 142.16 cc for V4GyRind. The differences were statistically significant with p < 0.01 for all indices, except for V4GyRind (p > 0.129). In conclusion, a direct dosimetric comparison using the same MRI scan and contours was performed to evaluate the plan quality of various fSRT delivery techniques for CTV > 9.5 cc. LINAC VMAT plans provided the best dosimetric outcome in regard to PCI, GI, and V20GyRind. GK outcomes were similar to LINAC VMAT plans while LINAC DCA outcomes were significantly worse. Even though GK has a smaller physical penumbra, LINAC VMAT outperformed GK in this study due to enhanced penumbra sharpening and better beam optimization.
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24
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Adua SJ, Arnal-Estapé A, Zhao M, Qi B, Liu ZZ, Kravitz C, Hulme H, Strittmatter N, López-Giráldez F, Chande S, Albert AE, Melnick MA, Hu B, Politi K, Chiang V, Colclough N, Goodwin RJA, Cross D, Smith P, Nguyen DX. Brain metastatic outgrowth and osimertinib resistance are potentiated by RhoA in EGFR-mutant lung cancer. Nat Commun 2022; 13:7690. [PMID: 36509758 PMCID: PMC9744876 DOI: 10.1038/s41467-022-34889-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Accepted: 11/10/2022] [Indexed: 12/14/2022] Open
Abstract
The brain is a major sanctuary site for metastatic cancer cells that evade systemic therapies. Through pre-clinical pharmacological, biological, and molecular studies, we characterize the functional link between drug resistance and central nervous system (CNS) relapse in Epidermal Growth Factor Receptor- (EGFR-) mutant non-small cell lung cancer, which can progress in the brain when treated with the CNS-penetrant EGFR inhibitor osimertinib. Despite widespread osimertinib distribution in vivo, the brain microvascular tumor microenvironment (TME) is associated with the persistence of malignant cell sub-populations, which are poised to proliferate in the brain as osimertinib-resistant lesions over time. Cellular and molecular features of this poised state are regulated through a Ras homolog family member A (RhoA) and Serum Responsive Factor (SRF) gene expression program. RhoA potentiates the outgrowth of disseminated tumor cells on osimertinib treatment, preferentially in response to extracellular laminin and in the brain. Thus, we identify pre-existing and adaptive features of metastatic and drug-resistant cancer cells, which are enhanced by RhoA/SRF signaling and the brain TME during the evolution of osimertinib-resistant disease.
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Affiliation(s)
- Sally J Adua
- Department of Pathology, Yale University School of Medicine, New Haven, CT, USA
| | - Anna Arnal-Estapé
- Department of Pathology, Yale University School of Medicine, New Haven, CT, USA
- Yale Cancer Center, Yale University School of Medicine, New Haven, CT, USA
| | - Minghui Zhao
- Department of Pathology, Yale University School of Medicine, New Haven, CT, USA
| | - Bowen Qi
- Department of Pathology, Yale University School of Medicine, New Haven, CT, USA
| | - Zongzhi Z Liu
- Department of Pathology, Yale University School of Medicine, New Haven, CT, USA
| | - Carolyn Kravitz
- Department of Pathology, Yale University School of Medicine, New Haven, CT, USA
| | - Heather Hulme
- Imaging and Data Analytics, Clinical Pharmacology and Safety Sciences, AstraZeneca, Cambridge, UK
| | - Nicole Strittmatter
- Imaging and Data Analytics, Clinical Pharmacology and Safety Sciences, AstraZeneca, Cambridge, UK
| | | | - Sampada Chande
- Department of Pathology, Yale University School of Medicine, New Haven, CT, USA
| | | | - Mary-Ann Melnick
- Yale Cancer Center, Yale University School of Medicine, New Haven, CT, USA
| | - Bomiao Hu
- Department of Pathology, Yale University School of Medicine, New Haven, CT, USA
| | - Katerina Politi
- Department of Pathology, Yale University School of Medicine, New Haven, CT, USA
- Yale Cancer Center, Yale University School of Medicine, New Haven, CT, USA
- Department of Medicine (Medical Oncology), Yale University School of Medicine, New Haven, CT, USA
| | - Veronica Chiang
- Yale Cancer Center, Yale University School of Medicine, New Haven, CT, USA
- Department of Neurosurgery, Yale University School of Medicine, New Haven, CT, USA
| | | | - Richard J A Goodwin
- Imaging and Data Analytics, Clinical Pharmacology and Safety Sciences, AstraZeneca, Cambridge, UK
| | - Darren Cross
- Global Oncology Medical Affairs, AstraZeneca, Cambridge, UK
| | - Paul Smith
- Bioscience, Early Oncology TDE, AstraZeneca, Cambridge, UK
| | - Don X Nguyen
- Department of Pathology, Yale University School of Medicine, New Haven, CT, USA.
- Yale Cancer Center, Yale University School of Medicine, New Haven, CT, USA.
- Department of Medicine (Medical Oncology), Yale University School of Medicine, New Haven, CT, USA.
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25
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Conway JW, Braden J, Wilmott JS, Scolyer RA, Long GV, Pires da Silva I. The effect of organ-specific tumor microenvironments on response patterns to immunotherapy. Front Immunol 2022; 13:1030147. [DOI: 10.3389/fimmu.2022.1030147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2022] [Accepted: 11/04/2022] [Indexed: 11/18/2022] Open
Abstract
Immunotherapy, particularly immune checkpoint inhibitors, have become widely used in various settings across many different cancer types in recent years. Whilst patients are often treated on the basis of the primary cancer type and clinical stage, recent studies have highlighted disparity in response to immune checkpoint inhibitors at different sites of metastasis, and their impact on overall response and survival. Studies exploring the tumor immune microenvironment at different organ sites have provided insights into the immune-related mechanisms behind organ-specific patterns of response to immunotherapy. In this review, we aimed to highlight the key learnings from clinical studies across various cancers including melanoma, lung cancer, renal cell carcinoma, colorectal cancer, breast cancer and others, assessing the association of site of metastasis and response to immune checkpoint inhibitors. We also summarize the key clinical and pre-clinical findings from studies exploring the immune microenvironment of specific sites of metastasis. Ultimately, further characterization of the tumor immune microenvironment at different metastatic sites, and understanding the biological drivers of these differences, may identify organ-specific mechanisms of resistance, which will lead to more personalized treatment approaches for patients with innate or acquired resistance to immunotherapy.
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26
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Shah HA, Leskinen S, Khilji H, Narayan V, Ben-Shalom N, D’Amico RS. Utility of 5-ALA for fluorescence-guided resection of brain metastases: a systematic review. J Neurooncol 2022; 160:669-675. [DOI: 10.1007/s11060-022-04188-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2022] [Accepted: 11/01/2022] [Indexed: 11/14/2022]
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27
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Molecular Mechanisms Driving the Formation of Brain Metastases. Cancers (Basel) 2022; 14:cancers14194963. [PMID: 36230886 PMCID: PMC9563727 DOI: 10.3390/cancers14194963] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Revised: 10/07/2022] [Accepted: 10/08/2022] [Indexed: 11/20/2022] Open
Abstract
Simple Summary Brain metastases are the most common brain tumor in adults and are associated with poor prognosis. The propensity of different solid tumors to metastasize varies greatly, with lung, breast, and melanoma primary tumors commonly leading to brain metastases, while other primaries such as prostate rarely metastasize to the brain. The molecular mechanisms that predispose and facilitate brain metastasis development are poorly understood. In this review, we present the current data on the genomic landscape of brain metastases that arise from various primary cancers and also outline potential molecular mechanisms that drive the formation of distant metastases in the brain. Abstract Targeted therapies for cancers have improved primary tumor response rates, but concomitantly, brain metastases (BM) have become the most common brain tumors in adults and are associated with a dismal prognosis of generally less than 6 months, irrespective of the primary cancer type. They most commonly occur in patients with primary breast, lung, or melanoma histologies; however, they also appear in patients with other primary cancers including, but not limited to, prostate cancer, colorectal cancer, and renal cell carcinoma. Historically, molecular biomarkers have normally been identified from primary tumor resections. However, clinically informative genomic alterations can occur during BM development and these potentially actionable alterations are not always detected in the primary tumor leading to missed opportunities for effective targeted therapy. The molecular mechanisms that facilitate and drive metastasis to the brain are poorly understood. Identifying the differences between the brain and other extracranial sties of metastasis, and between primary tumors and BM, is essential to improving our understanding of BM development and ultimately patient management and survival. In this review, we present the current data on the genomic landscape of BM from various primary cancers which metastasize to the brain and outline potential mechanisms which may play a role in promoting the formation of the distant metastases in the brain.
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28
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Salari N, Faraji F, Torghabeh FM, Faraji F, Mansouri K, Abam F, Shohaimi S, Akbari H, Mohammadi M. Polymer-based drug delivery systems for anticancer drugs: A systematic review. Cancer Treat Res Commun 2022; 32:100605. [PMID: 35816909 DOI: 10.1016/j.ctarc.2022.100605] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Revised: 06/21/2022] [Accepted: 07/02/2022] [Indexed: 06/15/2023]
Abstract
Recent advances in nanotechnology sciences lead to the development of new treatment approaches for various diseases such as cancer. Nanotechnology advances can potentially minimize the side effects of drugs through the employment of effective and controlled drug delivery systems (DDSs). Polymers are optimal tools providing drug delivery mechanisms through the unique features of pharmacokinetics, circulation time, biocompatibility, and biodegradability. This systematic review aimed to evaluate polymer-based DDSs for anticancer drugs and their various therapeutic applications in cancer treatment. This study was conducted with no time limitation by November 2021. Related articles were collected through a deep search in English and Persian databases of SID, MagIran, Scopus, Web Of Science (WoS), PubMed, Science Direct, and Google Scholar. Keywords included drug delivery system, anticancer agent, polymeric nanostructure-based drug delivery, polymer-based drug delivery, and polymeric system. As the results showed, polymeric nanoparticles (PNPs) have influential roles in cancer treatment than conventional chemotherapy procedures. PNPs can reduce cytotoxicity following chemotherapy drug administration, improve the solubility characteristics of these therapeutic agents and inhibit the rate of tumor growth.
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Affiliation(s)
- Nader Salari
- Department of Biostatistics, School of Health, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Farahnaz Faraji
- Department of Pharmaceutics, School of Pharmacy, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Fatemeh Mansouri Torghabeh
- Department of Physiology Sciences, Medical School, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Fatemeh Faraji
- Student research committee, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Kamran Mansouri
- Medical Biology Research Centre, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Farzaneh Abam
- Medical Biology Research Centre, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Shamarina Shohaimi
- Department of Biology, Faculty of Science, University Putra Malaysia, Serdang, Selangor, Malaysia
| | - Hakimeh Akbari
- Cellular and Molecular Research Center, Gerash University of Medical Sciences, Gerash, Iran
| | - Masoud Mohammadi
- Cellular and Molecular Research Center, Gerash University of Medical Sciences, Gerash, Iran.
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29
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Yoo J, Park HH, Kang SG, Chang JH. Recent Update on Neurosurgical Management of Brain Metastasis. Brain Tumor Res Treat 2022; 10:164-171. [PMID: 35929114 PMCID: PMC9353165 DOI: 10.14791/btrt.2022.0023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Revised: 06/22/2022] [Accepted: 06/25/2022] [Indexed: 11/20/2022] Open
Abstract
Brain metastasis (BM), classified as a secondary brain tumor, is the most common malignant central nervous system tumor whose median overall survival is approximately 6 months. However, the survival rate of patients with BMs has increased with recent advancements in immunotherapy and targeted therapy. This means that clinicians should take a more active position in the treatment paradigm that passively treats BMs. Because patients with BM are treated in a variety of clinical settings, treatment planning requires a more sophisticated decision-making process than that for other primary malignancies. Therefore, an accurate prognostic prediction is essential, for which a graded prognostic assessment that reflects next-generation sequencing can be helpful. It is also essential to understand the indications for various treatment modalities, such as surgical resection, stereotactic radiosurgery, and whole-brain radiotherapy and consider their advantages and disadvantages when choosing a treatment plan. Surgical resection serves a limited auxiliary function in BM, but it can be an essential therapeutic approach for increasing the survival rate of specific patients; therefore, this must be thoroughly recognized during the treatment process. The ultimate goal of surgical resection is maximal safe resection; to this end, neuronavigation, intraoperative neuro-electrophysiologic assessment including evoked potential, and the use of fluorescent materials could be helpful. In this review, we summarize the considerations for neurosurgical treatment in a rapidly changing treatment environment.
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Affiliation(s)
- Jihwan Yoo
- Department of Neurosurgery, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Hun Ho Park
- Department of Neurosurgery, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Seok-Gu Kang
- Department of Neurosurgery, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Jong Hee Chang
- Department of Neurosurgery, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea.
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30
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Brenner AW, Patel AJ. Review of Current Principles of the Diagnosis and Management of Brain Metastases. Front Oncol 2022; 12:857622. [PMID: 35686091 PMCID: PMC9171239 DOI: 10.3389/fonc.2022.857622] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Accepted: 04/25/2022] [Indexed: 12/25/2022] Open
Abstract
Brain metastases are the most common intracranial tumors and are increasing in incidence as overall cancer survival improves. Diagnosis of brain metastases involves both clinical examination and magnetic resonance imaging. Treatment may involve a combination of surgery, radiotherapy, and systemic medical therapy depending on the patient's neurologic status, performance status, and overall oncologic burden. Advances in these domains have substantially impacted the management of brain metastases and improved performance status and survival for some patients. Indications for surgery have expanded with improved patient selection, imaging, and intraoperative monitoring. Robust evidence supports the use of whole brain radiotherapy and stereotactic radiosurgery, for both standalone and adjuvant indications, in almost all patients. Lastly, while systemic medical therapy has historically provided little benefit, modern immunotherapeutic agents have demonstrated promise. Current investigation seeks to determine the utility of neoadjuvant radiotherapy and laser interstitial thermal therapy, which have shown benefit in limited studies to date. This article provides a review of the epidemiology, pathology, diagnosis, and treatment of brain metastases and the corresponding supporting evidence.
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Affiliation(s)
| | - Akash J. Patel
- Department of Neurosurgery, Baylor College of Medicine, Houston, TX, United States
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31
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Alvarez-Breckenridge C, Remon J, Piña Y, Nieblas-Bedolla E, Forsyth P, Hendriks L, Brastianos PK. Emerging Systemic Treatment Perspectives on Brain Metastases: Moving Toward a Better Outlook for Patients. Am Soc Clin Oncol Educ Book 2022; 42:1-19. [PMID: 35522917 DOI: 10.1200/edbk_352320] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
The diagnosis of brain metastases has historically been a dreaded, end-stage complication of systemic disease. Additionally, with the increasing effectiveness of systemic therapies that prolong life expectancy and improved imaging tools, the incidence of intracranial progression is becoming more common. Within this context, there has been increasing attention directed at understanding the molecular underpinnings of intracranial progression. Exploring the unique features of brain metastases compared with their extracranial counterparts to identify aberrant signaling pathways, which can be targeted pharmacologically, may help lead to new treatments for this patient population. Additionally, critical discoveries outside the sphere of the central nervous system are increasingly being applied to brain metastases with the emergence of immune checkpoint inhibition, becoming a prevalent treatment option for patients with brain metastases across multiple histologies. As novel treatment strategies are considered, they require thoughtful incorporation of agents that can cross the blood-brain barrier and can synergize with pre-existing agents through rational combinations. Lastly, as clinicians and scientists continue to understand key molecular features of these tumors, they will continue to influence the treatment algorithms that are developing for the management of these patients. Due to the complexity of treatment decisions for patients with brain metastases, an emerging tool is the utilization of multidisciplinary brain metastasis tumor boards to ensure optimal treatment decisions are made and that patients are provided access to applicable clinical trials. Looking to the future, the collective effort to understand the various tumor-intrinsic and tumor-extrinsic factors that promote central nervous system seeding and propagation will have the potential to change the clinical trajectory for these patients.
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Affiliation(s)
| | - Jordi Remon
- Department of Medical Oncology, HM CIOCC Barcelona (Centro Integral Oncológico Clara Campal), Hospital HM Delfos, HM Hospitales, Barcelona, Spain
| | - Yolanda Piña
- Department of Neuro-Oncology, H. Lee Moffitt Cancer Center and Research Institute, University of South Florida, Tampa, FL
| | | | - Peter Forsyth
- Department of Neuro-Oncology, H. Lee Moffitt Cancer Center and Research Institute, University of South Florida, Tampa, FL
| | - Lizza Hendriks
- Department of Pulmonary Diseases - GROW School for Oncology and Reproduction, Maastricht University Medical Center, Maastricht, Netherlands
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Blazquez R, Proescholdt MA, Klauser M, Schebesch KM, Doenitz C, Heudobler D, Stange L, Riemenschneider MJ, Bumes E, Rosengarth K, Schicho A, Schmidt NO, Brawanski A, Pukrop T, Wendl C. Breakouts-A Radiological Sign of Poor Prognosis in Patients With Brain Metastases. Front Oncol 2022; 12:849880. [PMID: 35444944 PMCID: PMC9015662 DOI: 10.3389/fonc.2022.849880] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2022] [Accepted: 02/28/2022] [Indexed: 11/29/2022] Open
Abstract
Purpose Brain metastases (BM) can present a displacing or infiltrating growth pattern, independent of the primary tumor type. Previous studies have shown that tumor cell infiltration at the macro-metastasis/brain parenchyma interface (MMPI) is correlated with poor outcome. Therefore, a pre-therapeutic, non-invasive detection tool for potential metastatic cell infiltration at the MMPI would be desirable to help identify patients who may benefit from a more aggressive local treatment strategy. The aim of this study was to identify specific magnetic resonance imaging (MRI) patterns at the MMPI in patients with BM and to correlate these patterns with patient outcome. Patients and Methods In this retrospective analysis of a prospective BM registry, we categorized preoperative MR images of 261 patients with BM according to a prespecified analysis system, which consisted of four MRI contrast enhancement (CE) patterns: two with apparently regularly shaped borders (termed “rim-enhancing” and “spherical”) and two with irregular delineation (termed “breakout” and “diffuse”). The primary outcome parameter was overall survival (OS). Additionally analyzed prognostic parameters were the Karnofsky Performance Index, tumor size, edema formation, extent of resection, and RPA class. Results OS of patients with a breakout pattern was significantly worse than OS of all other groups. Conclusion Our data show that BM with a breakout pattern have a highly aggressive clinical course. Patients with such a pattern potentially require a more aggressive local and systemic treatment strategy.
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Affiliation(s)
- Raquel Blazquez
- Department of Internal Medicine III, Hematology and Medical Oncology, University Hospital Regensburg, Regensburg, Germany
| | | | - Marlene Klauser
- Institute of Radiology, University Hospital Regensburg, Regensburg, Germany
| | | | - Christian Doenitz
- Department of Neurosurgery, University Hospital Regensburg, Regensburg, Germany
| | - Daniel Heudobler
- Department of Internal Medicine III, Hematology and Medical Oncology, University Hospital Regensburg, Regensburg, Germany
| | - Lena Stange
- Department of Neuropathology, University Hospital Regensburg, Regensburg, Germany
| | | | - Elisabeth Bumes
- Department of Neurology and Wilhelm Sander-NeuroOncology Unit, University Hospital Regensburg, Regensburg, Germany
| | | | - Andreas Schicho
- Institute of Radiology, University Hospital Regensburg, Regensburg, Germany
| | - Nils-Ole Schmidt
- Department of Neurosurgery, University Hospital Regensburg, Regensburg, Germany
| | - Alexander Brawanski
- Department of Neurosurgery, University Hospital Regensburg, Regensburg, Germany
| | - Tobias Pukrop
- Department of Internal Medicine III, Hematology and Medical Oncology, University Hospital Regensburg, Regensburg, Germany
| | - Christina Wendl
- Institute of Radiology, University Hospital Regensburg, Regensburg, Germany
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Dudal S, Bissantz C, Caruso A, David-Pierson P, Driessen W, Koller E, Krippendorff BF, Lechmann M, Olivares-Morales A, Paehler A, Rynn C, Türck D, Van De Vyver A, Wang K, Winther L. Translating pharmacology models effectively to predict therapeutic benefit. Drug Discov Today 2022; 27:1604-1621. [PMID: 35304340 DOI: 10.1016/j.drudis.2022.03.009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Revised: 02/03/2022] [Accepted: 03/11/2022] [Indexed: 12/26/2022]
Abstract
Many in vitro and in vivo models are used in pharmacological research to evaluate the role of targeted proteins in a disease. Understanding the translational relevance and limitation of these models for analyzing the disposition, pharmacokinetic/pharmacodynamic (PK/PD) profile, mechanism, and efficacy of a drug, is essential when selecting the most appropriate model of the disease of interest and predicting clinically efficacious doses of the investigational drug. Here, we review selected animal models used in ophthalmology, infectious diseases, oncology, autoimmune diseases, and neuroscience. Each area has specific challenges around translatability and determination of an efficacious dose: new patient-specific dosing methods could help overcome these limitations.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | | | | | - Ken Wang
- F. Hoffmann-La Roche Ltd, Basel, Switzerland
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Shen E, Van Swearingen AED, Price MJ, Bulsara K, Verhaak RGW, Baëta C, Painter BD, Reitman ZJ, Salama AKS, Clarke JM, Anders CK, Fecci PE, Goodwin CR, Walsh KM. A Need for More Molecular Profiling in Brain Metastases. Front Oncol 2022; 11:785064. [PMID: 35145903 PMCID: PMC8821807 DOI: 10.3389/fonc.2021.785064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Accepted: 12/22/2021] [Indexed: 11/13/2022] Open
Abstract
As local disease control improves, the public health impact of brain metastases (BrM) continues to grow. Molecular features are frequently different between primary and metastatic tumors as a result of clonal evolution during neoplasm migration, selective pressures imposed by systemic treatments, and differences in the local microenvironment. However, biomarker information in BrM is not routinely obtained despite emerging evidence of its clinical value. We review evidence of discordance in clinically actionable biomarkers between primary tumors, extracranial metastases, and BrM. Although BrM biopsy/resection imposes clinical risks, these risks must be weighed against the potential benefits of assessing biomarkers in BrM. First, new treatment targets unique to a patient's BrM may be identified. Second, as BrM may occur late in a patient's disease course, resistance to initial targeted therapies and/or loss of previously identified biomarkers can occur by the time of occult BrM, rendering initial and other targeted therapies ineffective. Thus, current biomarker data can inform real-time treatment options. Third, biomarker information in BrM may provide useful prognostic information for patients. Appreciating the importance of biomarker analyses in BrM tissue, including how it may identify specific drivers of BrM, is critical for the development of more effective treatment strategies to improve outcomes for this growing patient population.
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Affiliation(s)
- Erica Shen
- Division of Neurosurgery, Department of Surgery, University of Connecticut, Farmington, CT, United States
- The Jackson Laboratory for Genomic Medicine, Farmington, CT, United States
| | - Amanda E. D. Van Swearingen
- Division of Medical Oncology, Department of Medicine, Duke University Medical Center, Durham, NC, United States
- Duke Center for Brain and Spine Metastasis, Duke Cancer Institute, Duke University Medical Center, Durham, NC, United States
| | - Meghan J. Price
- Department of Neurosurgery, Duke University Medical Center, Durham, NC, United States
| | - Ketan Bulsara
- Division of Neurosurgery, Department of Surgery, University of Connecticut, Farmington, CT, United States
| | - Roeland G. W. Verhaak
- Division of Neurosurgery, Department of Surgery, University of Connecticut, Farmington, CT, United States
- The Jackson Laboratory for Genomic Medicine, Farmington, CT, United States
- Department of Neurosurgery, Cancer Center Amsterdam, Amsterdam Universitair Medische Centra (UMC), Vrije Universiteit Amsterdam (VU) University Medical Center (VUmc), Amsterdam, Netherlands
| | - César Baëta
- Duke Center for Brain and Spine Metastasis, Duke Cancer Institute, Duke University Medical Center, Durham, NC, United States
- Department of Neurosurgery, Duke University Medical Center, Durham, NC, United States
| | - Brice D. Painter
- Duke Center for Brain and Spine Metastasis, Duke Cancer Institute, Duke University Medical Center, Durham, NC, United States
- Department of Neurosurgery, Duke University Medical Center, Durham, NC, United States
| | - Zachary J. Reitman
- Department of Neurosurgery, Duke University Medical Center, Durham, NC, United States
- Department of Radiation Oncology, Duke University Medical Center, Durham, NC, United States
| | - April K. S. Salama
- Division of Medical Oncology, Department of Medicine, Duke University Medical Center, Durham, NC, United States
- Duke Center for Brain and Spine Metastasis, Duke Cancer Institute, Duke University Medical Center, Durham, NC, United States
| | - Jeffrey M. Clarke
- Division of Medical Oncology, Department of Medicine, Duke University Medical Center, Durham, NC, United States
- Duke Center for Brain and Spine Metastasis, Duke Cancer Institute, Duke University Medical Center, Durham, NC, United States
| | - Carey K. Anders
- Division of Medical Oncology, Department of Medicine, Duke University Medical Center, Durham, NC, United States
- Duke Center for Brain and Spine Metastasis, Duke Cancer Institute, Duke University Medical Center, Durham, NC, United States
| | - Peter E. Fecci
- Duke Center for Brain and Spine Metastasis, Duke Cancer Institute, Duke University Medical Center, Durham, NC, United States
- Department of Neurosurgery, Duke University Medical Center, Durham, NC, United States
| | - C. Rory Goodwin
- Duke Center for Brain and Spine Metastasis, Duke Cancer Institute, Duke University Medical Center, Durham, NC, United States
- Department of Neurosurgery, Duke University Medical Center, Durham, NC, United States
| | - Kyle M. Walsh
- Duke Center for Brain and Spine Metastasis, Duke Cancer Institute, Duke University Medical Center, Durham, NC, United States
- Department of Neurosurgery, Duke University Medical Center, Durham, NC, United States
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Cardinal T, Pangal D, Strickland BA, Newton P, Mahmoodifar S, Mason J, Craig D, Simon T, Tew BY, Yu M, Yang W, Chang E, Cabeen RP, Ruzevick J, Toga AW, Neman J, Salhia B, Zada G. Anatomical and topographical variations in the distribution of brain metastases based on primary cancer origin and molecular subtypes: a systematic review. Neurooncol Adv 2022; 4:vdab170. [PMID: 35024611 PMCID: PMC8739649 DOI: 10.1093/noajnl/vdab170] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Background While it has been suspected that different primary cancers have varying predilections for metastasis in certain brain regions, recent advances in neuroimaging and spatial modeling analytics have facilitated further exploration into this field. Methods A systematic electronic database search for studies analyzing the distribution of brain metastases (BMs) from any primary systematic cancer published between January 1990 and July 2020 was conducted using PRISMA guidelines. Results Two authors independently reviewed 1957 abstracts, 46 of which underwent full-text analysis. A third author arbitrated both lists; 13 studies met inclusion/exclusion criteria. All were retrospective single- or multi-institution database reviews analyzing over 8227 BMs from 2599 patients with breast (8 studies), lung (7 studies), melanoma (5 studies), gastrointestinal (4 studies), renal (3 studies), and prostate (1 study) cancers. Breast, lung, and colorectal cancers tended to metastasize to more posterior/caudal topographic and vascular neuroanatomical regions, particularly the cerebellum, with notable differences based on subtype and receptor expression. HER-2-positive breast cancers were less likely to arise in the frontal lobes or subcortical region, while ER-positive and PR-positive breast metastases were less likely to arise in the occipital lobe or cerebellum. BM from lung adenocarcinoma tended to arise in the frontal lobes and squamous cell carcinoma in the cerebellum. Melanoma metastasized more to the frontal and temporal lobes. Conclusion The observed topographical distribution of BM likely develops based on primary cancer type, molecular subtype, and genetic profile. Further studies analyzing this association and relationships to vascular distribution are merited to potentially improve patient treatment and outcomes.
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Affiliation(s)
- Tyler Cardinal
- Department of Neurosurgery, Keck School of Medicine of University of Southern California, Los Angeles, California, USA
| | - Dhiraj Pangal
- Department of Neurosurgery, Keck School of Medicine of University of Southern California, Los Angeles, California, USA
| | - Ben A Strickland
- Department of Neurosurgery, Keck School of Medicine of University of Southern California, Los Angeles, California, USA
| | - Paul Newton
- Department of Aerospace and Mechanical Engineering, Mathematics and The Ellison Institute for Transformative Medicine of USC, Los Angeles, California, USA
| | - Saeedeh Mahmoodifar
- Department of Physics & Astronomy, University of Southern California, Los Angeles, California, USA
| | - Jeremy Mason
- Department of Urology, Keck School of Medicine of University of Southern California, Los Angeles, California, USA
| | - David Craig
- Department of Translational Genomics, Keck School of Medicine of University of Southern California, Los Angeles, California, USA
| | - Thomas Simon
- Department of Translational Genomics, Keck School of Medicine of University of Southern California, Los Angeles, California, USA
| | - Ben Yi Tew
- Department of Translational Genomics, Keck School of Medicine of University of Southern California, Los Angeles, California, USA
| | - Min Yu
- Broad Stem Cell Center, University of Southern California, Los Angeles, California, USA
| | - Wensha Yang
- Department of Radiation Oncology, University of Southern California, Los Angeles, California, USA
| | - Eric Chang
- Department of Radiation Oncology, University of Southern California, Los Angeles, California, USA
| | - Ryan P Cabeen
- USC Stevens Neuroimaging and Informatics Institute, University of Southern California, Los Angeles, California, USA
| | - Jacob Ruzevick
- Department of Neurosurgery, Keck School of Medicine of University of Southern California, Los Angeles, California, USA
| | - Arthur W Toga
- USC Stevens Neuroimaging and Informatics Institute, University of Southern California, Los Angeles, California, USA
| | - Josh Neman
- Department of Neurosurgery, Keck School of Medicine of University of Southern California, Los Angeles, California, USA
| | - Bodour Salhia
- Department of Translational Genomics, Keck School of Medicine of University of Southern California, Los Angeles, California, USA
| | - Gabriel Zada
- Department of Neurosurgery, Keck School of Medicine of University of Southern California, Los Angeles, California, USA
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Ramos A, Giantini-Larsen A, Pannullo SC, Brandmaier A, Knisely J, Magge R, Wilcox JA, Pavlick AC, Ma B, Pisapia D, Ashamalla H, Ramakrishna R. A multidisciplinary management algorithm for brain metastases. Neurooncol Adv 2022; 4:vdac176. [PMID: 36532509 PMCID: PMC9749403 DOI: 10.1093/noajnl/vdac176] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/10/2023] Open
Abstract
The incidence of brain metastases continues to present a management issue despite the advent of improved systemic control and overall survival. While the management of oligometastatic disease (ie, 1-4 brain metastases) with surgery and radiation has become fairly straightforward in the era of radiosurgery, the management of patients with multiple metastatic brain lesions can be challenging. Here we review the available evidence and provide a multidisciplinary management algorithm for brain metastases that incorporates the latest advances in surgery, radiation therapy, and systemic therapy while taking into account the latest in precision medicine-guided therapies. In particular, we argue that whole-brain radiation therapy can likely be omitted in most patients as up-front therapy.
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Affiliation(s)
- Alexander Ramos
- Department of Neurological Surgery, Weill Cornell Medicine, New York Presbyterian Hospital, New York, New York, USA
| | - Alexandra Giantini-Larsen
- Department of Neurological Surgery, Weill Cornell Medicine, New York Presbyterian Hospital, New York, New York, USA
| | - Susan C Pannullo
- Department of Neurological Surgery, Weill Cornell Medicine, New York Presbyterian Hospital, New York, New York, USA
| | - Andrew Brandmaier
- Department of Radiation Oncology, Weill Cornell Medicine, New York Presbyterian Hospital, New York, New York, USA
| | - Jonathan Knisely
- Department of Radiation Oncology, Weill Cornell Medicine, New York Presbyterian Hospital, New York, New York, USA
| | - Rajiv Magge
- Department of Neurology, Weill Cornell Medicine, New York Presbyterian Hospital, New York, New York, USA
| | - Jessica A Wilcox
- Department of Neurology, Weill Cornell Medicine, New York Presbyterian Hospital, New York, New York, USA
- Department of Neurology, Memorial Sloan Kettering Cancer Center, New York, New York, USA
| | - Anna C Pavlick
- Department of Oncology, Weill Cornell Medicine, New York Presbyterian, New York, New York, USA
| | - Barbara Ma
- Department of Oncology, Weill Cornell Medicine, New York Presbyterian, New York, New York, USA
| | - David Pisapia
- Department of Pathology, Weill Cornell Medicine, New York Presbyterian, New York, New York, USA
| | - Hani Ashamalla
- Department of Neurology, Weill Cornell Medicine, New York Presbyterian Hospital, New York, New York, USA
| | - Rohan Ramakrishna
- Department of Neurological Surgery, Weill Cornell Medicine, New York Presbyterian Hospital, New York, New York, USA
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Machine Learning-Based Radiomics in Neuro-Oncology. ACTA NEUROCHIRURGICA. SUPPLEMENT 2021; 134:139-151. [PMID: 34862538 DOI: 10.1007/978-3-030-85292-4_18] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
In the last decades, modern medicine has evolved into a data-centered discipline, generating massive amounts of granular high-dimensional data exceeding human comprehension. With improved computational methods, machine learning and artificial intelligence (AI) as tools for data processing and analysis are becoming more and more important. At the forefront of neuro-oncology and AI-research, the field of radiomics has emerged. Non-invasive assessments of quantitative radiological biomarkers mined from complex imaging characteristics across various applications are used to predict survival, discriminate between primary and secondary tumors, as well as between progression and pseudo-progression. In particular, the application of molecular phenotyping, envisioned in the field of radiogenomics, has gained popularity for both primary and secondary brain tumors. Although promising results have been obtained thus far, the lack of workflow standardization and availability of multicenter data remains challenging. The objective of this review is to provide an overview of novel applications of machine learning- and deep learning-based radiomics in primary and secondary brain tumors and their implications for future research in the field.
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Salvestrini V, Greco C, Guerini AE, Longo S, Nardone V, Boldrini L, Desideri I, De Felice F. The role of feature-based radiomics for predicting response and radiation injury after stereotactic radiation therapy for brain metastases: A critical review by the Young Group of the Italian Association of Radiotherapy and Clinical Oncology (yAIRO). Transl Oncol 2021; 15:101275. [PMID: 34800918 PMCID: PMC8605350 DOI: 10.1016/j.tranon.2021.101275] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Accepted: 11/04/2021] [Indexed: 12/15/2022] Open
Abstract
Introduction differential diagnosis of tumor recurrence and radiation injury after stereotactic radiotherapy (SRT) is challenging. The advances in imaging techniques and feature-based radiomics could aid to discriminate radionecrosis from progression. Methods we performed a systematic review of current literature, key references were obtained from a PubMed query. Data extraction was performed by 3 researchers and disagreements were resolved with a discussion among the authors. Results we identified 15 retrospective series, one prospective trial, one critical review and one editorial paper. Radiomics involves a wide range of imaging features referred to necrotic regions, rate of contrast-enhancing area or the measure of edema surrounding the metastases. Features were mainly defined through a multistep extraction/reduction/selection process and a final validation and comparison. Conclusions feature-based radiomics has an optimal potential to accurately predict response and radionecrosis after SRT of BM and facilitate differential diagnosis. Further validation studies are eagerly awaited to confirm radiomics reliability.
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Affiliation(s)
- Viola Salvestrini
- Radiation Oncology, Azienda Ospedaliero-Universitaria Careggi, University of Florence, Florence, Italy
| | - Carlo Greco
- Radiation Oncology, Campus Bio-Medico University of Rome, Rome, Italy.
| | - Andrea Emanuele Guerini
- Radiation Oncology Department, Università degli Studi di Brescia and ASST Spedali Civili, Piazzale Spedali Civili 1, Brescia 25123, Italy.
| | - Silvia Longo
- Radiation Oncology, Fondazione Policlinico Universitario A. Gemelli, IRCCS, Largo Agostino Gemelli 8, Rome 00168, Italy.
| | - Valerio Nardone
- Section of Radiology and Radiotherapy, Department of Precision Medicine, University of Campania "L. Vanvitelli", Naples 80138, Italy.
| | - Luca Boldrini
- Radiation Oncology, Fondazione Policlinico Universitario A. Gemelli, IRCCS, Largo Agostino Gemelli 8, Rome 00168, Italy.
| | - Isacco Desideri
- Radiation Oncology, Azienda Ospedaliero-Universitaria Careggi, University of Florence, Florence, Italy.
| | - Francesca De Felice
- Radiation Oncology, Policlinico Umberto I "Sapienza" University of Rome, Viale Regina Elena 326, Rome 00161, Italy.
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Kaynak A, Davis HW, Vallabhapurapu SD, Pak KY, Gray BD, Qi X. SapC-DOPS as a Novel Therapeutic and Diagnostic Agent for Glioblastoma Therapy and Detection: Alternative to Old Drugs and Agents. Pharmaceuticals (Basel) 2021; 14:1193. [PMID: 34832975 PMCID: PMC8619974 DOI: 10.3390/ph14111193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Revised: 11/16/2021] [Accepted: 11/17/2021] [Indexed: 11/17/2022] Open
Abstract
Glioblastoma multiforme (GBM), the most common type of brain cancer, is extremely aggressive and has a dreadful prognosis. GBM comprises 60% of adult brain tumors and the 5 year survival rate of GBM patients is only 4.3%. Standard-of-care treatment includes maximal surgical removal of the tumor in combination with radiation and temozolomide (TMZ) chemotherapy. TMZ is the "gold-standard" chemotherapy for patients suffering from GBM. However, the median survival is only about 12 to 18 months with this protocol. Consequently, there is a critical need to develop new therapeutic options for treatment of GBM. Nanomaterials have unique properties as multifunctional platforms for brain tumor therapy and diagnosis. As one of the nanomaterials, lipid-based nanocarriers are capable of delivering chemotherapeutics and imaging agents to tumor sites by enhancing the permeability of the compound through the blood-brain barrier, which makes them ideal for GBM therapy and imaging. Nanocarriers also can be used for delivery of radiosensitizers to the tumor to enhance the efficacy of the radiation therapy. Previously, high-atomic-number element-containing particles such as gold nanoparticles and liposomes have been used as radiosensitizers. SapC-DOPS, a protein-based liposomal drug comprising the lipid, dioleoylphosphatidylserine (DOPS), and the protein, saposin C (SapC), has been shown to be effective for treatment of a variety of cancers in small animals, including GBM. SapC-DOPS also has the unique ability to be used as a carrier for delivery of radiotheranostic agents for nuclear imaging and radiotherapeutic purposes. These unique properties make tumor-targeting proteo-liposome nanocarriers novel therapeutic and diagnostic alternatives to traditional chemotherapeutics and imaging agents. This article reviews various treatment modalities including nanolipid-based delivery and therapeutic systems used in preclinical and clinical trial settings for GBM treatment and detection.
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Affiliation(s)
- Ahmet Kaynak
- Division of Hematology/Oncology, Department of Internal Medicine, University of Cincinnati College of Medicine, and Brain Tumor Center at UC Neuroscience Institute, 3512 Eden Avenue, Cincinnati, OH 45267, USA; (A.K.); (H.W.D.); (S.D.V.)
- Department of Biomedical Engineering, College of Engineering and Applied Science, University of Cincinnati, Cincinnati, OH 45221, USA
| | - Harold W. Davis
- Division of Hematology/Oncology, Department of Internal Medicine, University of Cincinnati College of Medicine, and Brain Tumor Center at UC Neuroscience Institute, 3512 Eden Avenue, Cincinnati, OH 45267, USA; (A.K.); (H.W.D.); (S.D.V.)
| | - Subrahmanya D. Vallabhapurapu
- Division of Hematology/Oncology, Department of Internal Medicine, University of Cincinnati College of Medicine, and Brain Tumor Center at UC Neuroscience Institute, 3512 Eden Avenue, Cincinnati, OH 45267, USA; (A.K.); (H.W.D.); (S.D.V.)
| | - Koon Y. Pak
- Molecular Targeting Technologies, Inc., West Chester, PA 19380, USA; (K.Y.P.); (B.D.G.)
| | - Brian D. Gray
- Molecular Targeting Technologies, Inc., West Chester, PA 19380, USA; (K.Y.P.); (B.D.G.)
| | - Xiaoyang Qi
- Division of Hematology/Oncology, Department of Internal Medicine, University of Cincinnati College of Medicine, and Brain Tumor Center at UC Neuroscience Institute, 3512 Eden Avenue, Cincinnati, OH 45267, USA; (A.K.); (H.W.D.); (S.D.V.)
- Department of Biomedical Engineering, College of Engineering and Applied Science, University of Cincinnati, Cincinnati, OH 45221, USA
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Jaberipour M, Soliman H, Sahgal A, Sadeghi-Naini A. A priori prediction of local failure in brain metastasis after hypo-fractionated stereotactic radiotherapy using quantitative MRI and machine learning. Sci Rep 2021; 11:21620. [PMID: 34732781 PMCID: PMC8566533 DOI: 10.1038/s41598-021-01024-9] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Accepted: 10/21/2021] [Indexed: 12/14/2022] Open
Abstract
This study investigated the effectiveness of pre-treatment quantitative MRI and clinical features along with machine learning techniques to predict local failure in patients with brain metastasis treated with hypo-fractionated stereotactic radiation therapy (SRT). The predictive models were developed using the data from 100 patients (141 lesions) and evaluated on an independent test set with data from 20 patients (30 lesions). Quantitative MRI radiomic features were derived from the treatment-planning contrast-enhanced T1w and T2-FLAIR images. A multi-phase feature reduction and selection procedure was applied to construct an optimal quantitative MRI biomarker for predicting therapy outcome. The performance of standard clinical features in therapy outcome prediction was evaluated using a similar procedure. Survival analyses were conducted to compare the long-term outcome of the two patient cohorts (local control/failure) identified based on prediction at pre-treatment, and standard clinical criteria at last patient follow-up after SRT. The developed quantitative MRI biomarker consists of four features with two features quantifying heterogeneity in the edema region, one feature characterizing intra-tumour heterogeneity, and one feature describing tumour morphology. The predictive models with the radiomic and clinical feature sets yielded an AUC of 0.87 and 0.62, respectively on the independent test set. Incorporating radiomic features into the clinical predictive model improved the AUC of the model by up to 16%, relatively. A statistically significant difference was observed in survival of the two patient cohorts identified at pre-treatment using the radiomics-based predictive model, and at post-treatment using the the RANO-BM criteria. Results of this study revealed a good potential for quantitative MRI radiomic features at pre-treatment in predicting local failure in relatively large brain metastases undergoing SRT, and is a step forward towards a precision oncology paradigm for brain metastasis.
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Affiliation(s)
- Majid Jaberipour
- grid.21100.320000 0004 1936 9430Department of Electrical Engineering and Computer Science, Lassonde School of Engineering, York University, Toronto, ON Canada ,grid.413104.30000 0000 9743 1587Physical Sciences Platform, Sunnybrook Research Institute, Sunnybrook Health Sciences Centre, Toronto, ON Canada
| | - Hany Soliman
- grid.413104.30000 0000 9743 1587Physical Sciences Platform, Sunnybrook Research Institute, Sunnybrook Health Sciences Centre, Toronto, ON Canada ,grid.413104.30000 0000 9743 1587Department of Radiation Oncology, Odette Cancer Centre, Sunnybrook Health Sciences Centre, Toronto, ON Canada ,grid.17063.330000 0001 2157 2938Department of Radiation Oncology, University of Toronto, Toronto, ON Canada
| | - Arjun Sahgal
- grid.413104.30000 0000 9743 1587Physical Sciences Platform, Sunnybrook Research Institute, Sunnybrook Health Sciences Centre, Toronto, ON Canada ,grid.413104.30000 0000 9743 1587Department of Radiation Oncology, Odette Cancer Centre, Sunnybrook Health Sciences Centre, Toronto, ON Canada ,grid.17063.330000 0001 2157 2938Department of Radiation Oncology, University of Toronto, Toronto, ON Canada
| | - Ali Sadeghi-Naini
- grid.21100.320000 0004 1936 9430Department of Electrical Engineering and Computer Science, Lassonde School of Engineering, York University, Toronto, ON Canada ,grid.413104.30000 0000 9743 1587Physical Sciences Platform, Sunnybrook Research Institute, Sunnybrook Health Sciences Centre, Toronto, ON Canada ,grid.413104.30000 0000 9743 1587Department of Radiation Oncology, Odette Cancer Centre, Sunnybrook Health Sciences Centre, Toronto, ON Canada ,grid.17063.330000 0001 2157 2938Department of Medical Biophysics, University of Toronto, Toronto, ON Canada
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Lehrer EJ, Stoltzfus KC, Jones BM, Gusani NJ, Walter V, Wang M, Trifiletti DM, Siva S, Louie AV, Zaorsky NG. Trends in Diagnosis and Treatment of Metastatic Cancer in the United States. Am J Clin Oncol 2021; 44:572-579. [PMID: 34560720 DOI: 10.1097/coc.0000000000000866] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
OBJECTIVES Metastatic cancer has historically been considered fatal; however, there is a paucity of evidence characterizing the epidemiology of incidence, treatment, and outcomes in these patients. MATERIALS AND METHODS Incidence rates, annual percent change (APC), descriptive epidemiological statistics, and odds ratios for survival were calculated using registry data from the Surveillance, Epidemiology, and End Results (SEER) and the National Cancer Database (NCDB), 1998 to 2015. RESULTS There were a total of 1,055,860 patients with metastatic cancer. The most frequent primary cancers were lung (42.6%), colorectal (9.5%), and ovarian (5.5%). Metastatic lung and colorectal cancer incidence decreased, APC: -1.57 (P<0.001) and APC: -1.48 (P<0.001), respectively; metastatic pancreatic cancer incidence increased, APC: 0.62 (P=0.001). The use of local therapies decreased for almost all sites, and the use of systemic therapies increased across multiple sites: single-agent chemotherapy in kidney (2.54% increase/year), female breast (1.14% increase/year), and prostate cancer (1.08% increase/year); multiagent chemotherapy, most notably in pancreas (2.23% increase/year), uterus (1.81% increase/year), and colorectal cancer (1.54% increase/year). Increased utilization of immunotherapy was observed across the majority of sites, most notably in melanoma (2.14% increase/year). Patients diagnosed from 2006 to 2010 had 17.4% higher odds of surviving at least 60 months compared with 1998 to 2002. CONCLUSIONS In this study, metastatic disease has been shown to have unique epidemiological patterns, and survival has improved. Continued research on metastatic disease is important in understanding and addressing the distinct health concerns of this population.
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Affiliation(s)
- Eric J Lehrer
- Department of Radiation Oncology, Icahn School of Medicine at Mount Sinai, New York, NY
| | | | - Brianna M Jones
- Department of Radiation Oncology, Icahn School of Medicine at Mount Sinai, New York, NY
| | - Niraj J Gusani
- Public Health Sciences
- Surgery, Penn State College of Medicine
- Section of Surgical Oncology, Baptist MD Anderson Cancer Center
| | - Vonn Walter
- Public Health Sciences
- Departments of Biochemistry and Molecular Biology
| | | | | | - Shankar Siva
- Department of Radiation Oncology, Peter MacCallum Cancer Centre
- Sir Peter MacCallum Department of Oncology, Peter MacCallum Cancer Centre, University of Melbourne, Melbourne, Vic., Australia
| | - Alexander V Louie
- Odette Cancer Centre-Sunnybrook Health Sciences Centre, Toronto, ON, Canada
| | - Nicholas G Zaorsky
- Public Health Sciences
- Radiation Oncology, Penn State Cancer Institute, Hershey, PA
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Gaman L, Radoi MP, Delia CE, Luzardo OP, Zumbado M, Rodríguez-Hernández Á, Stoian I, Gilca M, Boada LD, Henríquez-Hernández LA. Concentration of heavy metals and rare earth elements in patients with brain tumours: Analysis in tumour tissue, non-tumour tissue, and blood. INTERNATIONAL JOURNAL OF ENVIRONMENTAL HEALTH RESEARCH 2021; 31:741-754. [PMID: 31674203 DOI: 10.1080/09603123.2019.1685079] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2019] [Accepted: 10/22/2019] [Indexed: 06/10/2023]
Abstract
Inorganic elements have been associated with brain tumours for long. The blood concentration of 47 elements was assessed by ICP-MS in 26 brain tumour patients and 21 healthy subjects from Bucharest (Romania). All 47 elements were detected in the brain tumour tissue, and 22 were detected in > 80% of samples; this implies that these elements can cross the blood-brain barrier. Median blood levels of cadmium, lead, and nickel were higher than the reference values (1.14, 53.3, and 2.53 ng/mL). Gadolinium and tantalum showed significantly higher concentrations among cases. We observed considerable differences and different profiles of the presence of inorganic elements between the tumour and non-tumour brain tissue and between tissue from the primary tumour and tissue from brain metastasis. Our data suggest that similar to heavy metals, other elements - commonly used in high tech devices and rare earth elements - can also influence brain tumour.
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Affiliation(s)
- Laura Gaman
- Faculty of Medicine, University of Medicine and Pharmacy Carol Davila, Bucharest, Romania
| | - Mugurel Petrinel Radoi
- Faculty of Medicine, University of Medicine and Pharmacy Carol Davila, Bucharest, Romania
- Neurosurgical Department, National Institute of Neurology and Neurovascular Diseases, Bucharest, Romania
| | - Corina Elena Delia
- Faculty of Biology, University of Bucharest, Bucharest, Romania
- Biochemistry Laboratory, National Institute for the Mother and Child Health Alessandrescu Rusescu, Bucharest, Romania
| | - Octavio P Luzardo
- Toxicology Unit, Research Institute of Biomedical and Health Sciences (IUIBS), Department of Clinical Sciences, Universidad de Las Palmas de Gran Canaria, Las Palmas de Gran Canaria, Spain
| | - Manuel Zumbado
- Toxicology Unit, Research Institute of Biomedical and Health Sciences (IUIBS), Department of Clinical Sciences, Universidad de Las Palmas de Gran Canaria, Las Palmas de Gran Canaria, Spain
| | - Ángel Rodríguez-Hernández
- Toxicology Unit, Research Institute of Biomedical and Health Sciences (IUIBS), Department of Clinical Sciences, Universidad de Las Palmas de Gran Canaria, Las Palmas de Gran Canaria, Spain
| | - Irina Stoian
- Faculty of Medicine, University of Medicine and Pharmacy Carol Davila, Bucharest, Romania
| | - Marilena Gilca
- Faculty of Medicine, University of Medicine and Pharmacy Carol Davila, Bucharest, Romania
| | - Luis D Boada
- Toxicology Unit, Research Institute of Biomedical and Health Sciences (IUIBS), Department of Clinical Sciences, Universidad de Las Palmas de Gran Canaria, Las Palmas de Gran Canaria, Spain
| | - Luis Alberto Henríquez-Hernández
- Toxicology Unit, Research Institute of Biomedical and Health Sciences (IUIBS), Department of Clinical Sciences, Universidad de Las Palmas de Gran Canaria, Las Palmas de Gran Canaria, Spain
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Bozdağ M, Er A, Ekmekçi S. Differentiation of brain metastases originating from lung and breast cancers using apparent diffusion coefficient histogram analysis and the relation of histogram parameters with Ki-67. Neuroradiol J 2021; 35:370-377. [PMID: 34609916 DOI: 10.1177/19714009211049082] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
PURPOSE A fast, reliable and non-invasive method is required in differentiating brain metastases (BMs) originating from lung cancer (LC) and breast cancer (BC). The aims of this study were to assess the role of histogram analysis of apparent diffusion coefficient (ADC) maps in differentiating BMs originated from LC and BC, and then to investigate further the association of ADC histogram parameters with Ki-67 index in BMs. METHODS A total of 55 patients (LC, N = 40; BC, N = 15) with BMs histopathologically confirmed were enrolled in the study. The LC group was divided into small-cell lung cancer (SCLC; N = 15) and non-small-cell lung cancer (NSCLC; N = 25) groups. ADC histogram parameters (ADCmax, ADCmean, ADCmin, ADCmedian, ADC10, ADC25, ADC75 and ADC90, skewness, kurtosis and entropy) were derived from ADC maps. Mann-Whitney U-test, independent samples t-test, receiver operating characteristic (ROC) analysis and Spearman correlation analysis were used for statistical assessment. RESULTS ADC histogram parameters did not show significant differences between LC and BC groups (p > 0.05). Subgroup analysis showed that various ADC histogram parameters were found to be statistically lower in the SCLC group compared to the NSCLC and BC groups (p < 0.05). ROC analysis showed that ADCmean and ADC10 for differentiating SCLC BMs from NSCLC, and ADC25 for differentiating SCLC BMs from BC achieved optimal diagnostic performances. Various histogram parameters were found to be significantly correlated with Ki-67 (p < 0.05). CONCLUSION Histogram analysis of ADC maps may reflect tumoural proliferation potential in BMs and can be useful in differentiating SCLC BMs from NSCLC and BC BMs.
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Affiliation(s)
- Mustafa Bozdağ
- Department of Radiology, Tepecik Training and Research Hospital, Turkey
| | - Ali Er
- Department of Radiology, Tepecik Training and Research Hospital, Turkey
| | - Sümeyye Ekmekçi
- Department of Pathology, Tepecik Training and Research Hospital, Turkey
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Medikonda R, Jackson CM, Feghali J, Lim M. The Effects of Postoperative Neurological Deficits on Survival in Patients With Single Brain Metastasis. Oper Neurosurg (Hagerstown) 2021; 19:628-634. [PMID: 32717025 DOI: 10.1093/ons/opaa224] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2019] [Accepted: 05/20/2020] [Indexed: 01/17/2023] Open
Abstract
BACKGROUND The prognosis for brain metastasis is poor, and surgical resection is part of the standard of care for these patients as it has been shown to improve median overall survival. Development of neurological deficits after surgical resection has been associated with worsened outcomes in patients with glioblastoma. The effect of postoperative neurological deficits on survival in patients with single brain metastasis has not been studied to date. OBJECTIVE To evaluate the association between postoperative neurological deficits and median overall survival. METHODS A single-institution retrospective cohort study was performed on all patients with single brain metastasis undergoing surgical resection by a single neurosurgeon. RESULTS A total of 121 patients met the inclusion criteria for this study. Among them 61% of patients presented with a preoperative deficit, and 26% of patients had a new postoperative deficit. However, most postoperative deficits resolved and only 3.3% of patients developed a new permanent postoperative deficit. Median overall survival in patients with a new postoperative deficit was 2.4 mo, whereas mOS in patients without a postoperative deficit was 12.6 mo (P < .0001). CONCLUSION This study suggests that a new neurological deficit is associated with worsened outcomes after surgical resection of a single brain metastasis. This finding has potential implications for patient selection and counseling as the patients most likely to benefit from surgical resection are the patients who are most likely to have resolution of a preoperative deficit.
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Affiliation(s)
- Ravi Medikonda
- Department of Neurosurgery, The Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Christopher M Jackson
- Department of Neurosurgery, The Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - James Feghali
- Department of Neurosurgery, The Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Michael Lim
- Department of Neurosurgery, The Johns Hopkins University School of Medicine, Baltimore, Maryland
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Salans M, Yip A, Burkeen J, Liu KX, Lee E, Pan-Weisz T, Marshall D, McDuff SG, Sharifzadeh Y, Dalia Y, Sanghvi P, Simpson D, Xu R, McDonald C, Hattangadi-Gluth JA. Prospective Longitudinal Assessment of Health-related Quality of Life in Patients With Brain Metastases Undergoing Radiation Therapy. Am J Clin Oncol 2021; 44:536-543. [PMID: 34392256 PMCID: PMC8458239 DOI: 10.1097/coc.0000000000000848] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVE We conducted a prospective clinical trial of patients receiving radiation (RT) for brain metastases to identify clinical predictors of pre-RT and post-RT health-related quality of life (hrQoL). MATERIALS AND METHODS Patients with brain metastases completed overall (European Organisation for Research and Treatment of Cancer QLQ C15-PAL) and brain tumor-specific (QLQ-BN20) hrQoL assessments pre-RT (n=127) and 1 (n=56) and 3 (n=45) months post-RT. Linear and proportional-odds models analyzed patient, disease, and treatment predictors of baseline, 1-, and 3-month hrQoL scores. Generalized estimating equations and repeated measures proportional-odds models assessed predictors of longitudinal hrQoL scores. RESULTS Most patients underwent stereotactic radiosurgery (SRS) (69.3%) and had non-small-cell lung (36.0%) metastases. Compared with SRS, receipt of whole brain RT was associated with a higher odds of appetite loss (baseline P=0.04, 1 mo P=0.02) and greater motor dysfunction (baseline P=0.01, 1 mo P=0.003, 3 mo P=0.02). Receipt of systemic therapy was associated with better emotional functioning after RT (1 mo P=0.03, 3 mo P=0.01). Compared with patients with breast cancer, patients with melanoma had higher odds of better global hrQoL (P=0.01) and less pain (P=0.048), while patients with lung cancer reported lower physical function (P=0.048) 3 months post-RT. Nonmarried patients had greater odds of higher global hrQoL (1 mo P=0.01), while male patients had lower odds of reporting more hair loss (baseline P=0.03, 3 mo P=0.045). Patients 60 years and above had lower odds of more drowsiness (P=0.04) and pain (P=0.049) over time. CONCLUSIONS Patients receiving SRS versus whole brain RT and systemic therapy reported better posttreatment hrQoL. In addition, melanoma metastases, nonmarried, male, and older patients with reported better hrQoL in various as well as domains after intracranial RT.
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Affiliation(s)
- Mia Salans
- Department of Radiation Medicine and Applied Sciences, University of California San Diego, La Jolla, California, USA
| | - Anthony Yip
- Department of Radiation Medicine and Applied Sciences, University of California San Diego, La Jolla, California, USA
| | | | - Kevin X. Liu
- Harvard Radiation Oncology Program, Harvard Medical School, Boston, Massachussetts
| | - Euyhyun Lee
- Department of Mathematics, University of California San Diego, La Jolla, California, USA
| | - Tonya Pan-Weisz
- Mental Health Service, Veterans Affairs San Diego Healthcare System
- Department of Psychiatry, University of California San Diego, La Jolla, California, USA
| | - Deborah Marshall
- Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Susan G.R. McDuff
- Department of Radiation Oncology, Duke Cancer Center, Durham, North Carolina, USA
| | | | - Yoseph Dalia
- Department of Dermatology, The University of Tennesee Health Science Center, Memphis, Tennessee, USA
| | - Parag Sanghvi
- Department of Radiation Medicine and Applied Sciences, University of California San Diego, La Jolla, California, USA
| | - Daniel Simpson
- Department of Radiation Medicine and Applied Sciences, University of California San Diego, La Jolla, California, USA
| | - Ronghui Xu
- Department of Mathematics, University of California San Diego, La Jolla, California, USA
| | - Carrie McDonald
- Department of Radiation Medicine and Applied Sciences, University of California San Diego, La Jolla, California, USA
- Department of Psychiatry, University of California San Diego, La Jolla, California, USA
| | - Jona A. Hattangadi-Gluth
- Department of Radiation Medicine and Applied Sciences, University of California San Diego, La Jolla, California, USA
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Koo J, Roh TH, Lee SR, Heo J, Oh YT, Kim SH. Whole-Brain Radiotherapy vs. Localized Radiotherapy after Resection of Brain Metastases in the Era of Targeted Therapy: A Retrospective Study. Cancers (Basel) 2021; 13:cancers13184711. [PMID: 34572938 PMCID: PMC8472558 DOI: 10.3390/cancers13184711] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2021] [Revised: 09/10/2021] [Accepted: 09/17/2021] [Indexed: 11/30/2022] Open
Abstract
Simple Summary The paradigm shift from cytotoxic chemotherapy to molecular targeted therapy dramatically improved the survival and quality of life of cancer patients. In radio-oncological aspects, there also was a paradigm shift from whole-brain radiotherapy to localized radiotherapy including stereotactic radiosurgery. This retrospective study analyzed 124 consecutive patients who had undergone surgical resection of brain metastases. We found targeted therapies to improve overall survival and distant control with decreased incidence of leptomeningeal metastasis. Our data suggest that localized radiotherapy is sufficient after resection of brain metastases when systemic targeted therapy is available. Abstract Whether targeted therapy (TT) and radiotherapy impact survival after resection of brain metastases (BM) is unknown. The purpose of this study was to analyze the factors affecting overall survival (OS), local control (LC), distant control (DC), and leptomeningeal metastases (LMM) in patients who had undergone resection of BM. We retrospectively analyzed 124 consecutive patients who had undergone resection of BM between 2004 and 2020. Patient information about age, sex, Karnofsky Performance Scale (KPS), origin of cancer, synchronicity, tumor size, status of primary cancer, use of TT, extent of resection, and postoperative radiotherapy was collected. Radiation therapy was categorized into whole-brain radiotherapy (WBRT), localized radiotherapy (local brain radiotherapy or stereotactic radiosurgery (LBRT/SRS)), and no radiation. We identified factors that affect OS, LC, DC, and LMM. In multivariable analysis, significant factors for OS were higher KPS score (≥90) (HR 0.53, p = 0.011), use of TT (HR 0.43, p = 0.001), controlled primary disease (HR 0.63, p = 0.047), and single BM (HR 0.55, p = 0.016). Significant factors for LC were gross total resection (HR 0.29, p = 0.014) and origin of cancer (p = 0.041). Both WBRT and LBRT/SRS showed superior LC than no radiation (HR 0.32, p = 0.034 and HR 0.38, p = 0.018, respectively). Significant factors for DC were use of TT (HR 0.54, p = 0.022) and single BM (HR 0.47, p = 0.004). Reduced incidence of LMM was associated with use of TT (HR 0.42, p = 0.038), synchronicity (HR 0.25, p = 0.028), and controlled primary cancer (HR 0.44, p = 0.047). TT was associated with prolonged OS, improved DC, and reduced LMM in resected BM patients. WBRT and LBRT/SRS showed similar benefits on LC. Considering the extended survival of cancer patients and the long-term effect of WBRT on cognitive function, LBRT/SRS appears to be a good option after resection of BM.
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Affiliation(s)
- Jaho Koo
- Gamma Knife Center, Brain Tumor Center, Department of Neurosurgery, Ajou University Hospital, Ajou University School of Medicine, Suwon 16499, Korea; (J.K.); (S.R.L.); (S.-H.K.)
| | - Tae Hoon Roh
- Gamma Knife Center, Brain Tumor Center, Department of Neurosurgery, Ajou University Hospital, Ajou University School of Medicine, Suwon 16499, Korea; (J.K.); (S.R.L.); (S.-H.K.)
- Correspondence:
| | - Sang Ryul Lee
- Gamma Knife Center, Brain Tumor Center, Department of Neurosurgery, Ajou University Hospital, Ajou University School of Medicine, Suwon 16499, Korea; (J.K.); (S.R.L.); (S.-H.K.)
| | - Jaesung Heo
- Brain Tumor Center, Department of Radiation Oncology, Ajou University Hospital, Ajou University School of Medicine, Suwon 16499, Korea; (J.H.); (Y.-T.O.)
| | - Young-Taek Oh
- Brain Tumor Center, Department of Radiation Oncology, Ajou University Hospital, Ajou University School of Medicine, Suwon 16499, Korea; (J.H.); (Y.-T.O.)
| | - Se-Hyuk Kim
- Gamma Knife Center, Brain Tumor Center, Department of Neurosurgery, Ajou University Hospital, Ajou University School of Medicine, Suwon 16499, Korea; (J.K.); (S.R.L.); (S.-H.K.)
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Thrower SL, Al Feghali KA, Luo D, Paddick I, Hou P, Briere T, Li J, McAleer MF, McGovern SL, Woodhouse KD, Yeboa DN, Brock KK, Chung C. The Effect of Slice Thickness on Contours of Brain Metastases for Stereotactic Radiosurgery. Adv Radiat Oncol 2021; 6:100708. [PMID: 34124413 PMCID: PMC8175282 DOI: 10.1016/j.adro.2021.100708] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Revised: 03/22/2021] [Accepted: 04/06/2021] [Indexed: 12/30/2022] Open
Abstract
OBJECTIVES Stereotactic radiosurgery is a common treatment for brain metastases and is typically planned on magnetic resonance imaging (MRI). However, the MR acquisition parameters used for patient selection and treatment planning for stereotactic radiosurgery can vary within and across institutions. In this work, we investigate the effect of MRI slice thickness on the detection and contoured volume of metastatic lesions in the brain. METHODS AND MATERIALS A retrospective cohort of 28 images acquired with a slice thickness of 1 mm were resampled to simulate acquisitions at 2- and 3-mm slice thickness. A total of 102 metastases ranging from 0.0030 cc to 5.08 cc (75-percentile 0.36 cc) were contoured on the original images. All 3 sets of images were recontoured by experienced physicians. RESULTS Of all the images detected and contoured on the 1 mm images, 3% of lesions were missed on the 2 mm images, and 13% were missed on the 3 mm images. One lesion that was identified on both the 2 mm and 3 mm images was determined to be a blood vessel on the 1 mm images. Additionally, the lesions were contoured 11% larger on the 2 mm and 43% larger on the 3 mm images. CONCLUSIONS Using images with a slice thickness >1 mm effects detection and segmentation of brain lesions, which can have an important effect on patient management and treatment outcomes.
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Affiliation(s)
- Sara L. Thrower
- Department of Imaging Physics, The University of Texas MD Anderson Cancer Center, Houston, Texas
- Department of Radiation Physics, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Karine A. Al Feghali
- Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Dershan Luo
- Department of Radiation Physics, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Ian Paddick
- Queen Square Radiosurgery Centre, National Hospital for Neurology and Neurosurgery, London, England
| | - Ping Hou
- Department of Imaging Physics, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Tina Briere
- Department of Radiation Physics, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Jing Li
- Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Mary Frances McAleer
- Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Susan L. McGovern
- Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Kristina Demas Woodhouse
- Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Debra Nana Yeboa
- Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Kristy K. Brock
- Department of Imaging Physics, The University of Texas MD Anderson Cancer Center, Houston, Texas
- Department of Radiation Physics, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Caroline Chung
- Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
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Kato S, Amemiya S, Takao H, Yamashita H, Sakamoto N, Abe O. Automated detection of brain metastases on non-enhanced CT using single-shot detectors. Neuroradiology 2021; 63:1995-2004. [PMID: 34114064 DOI: 10.1007/s00234-021-02743-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2021] [Accepted: 05/30/2021] [Indexed: 12/23/2022]
Abstract
PURPOSE To develop and investigate deep learning-based detectors for brain metastases detection on non-enhanced (NE) CT. METHODS The study included 116 NECTs from 116 patients (81 men, age 66.5 ± 10.6 years) to train and test single-shot detector (SSD) models using 89 and 27 cases, respectively. The annotation was performed by three radiologists using bounding-boxes defined on contrast-enhanced CT (CECT) images. NECTs were coregistered and resliced to CECTs. The detection performance was evaluated at the SSD's 50% confidence threshold using sensitivity, positive-predictive value (PPV), and the false-positive rate per scan (FPR). For false negatives and true positives, binary logistic regression was used to examine the possible contributing factors. RESULTS For lesions 6 mm or larger, the SSD achieved a sensitivity of 35.4% (95% confidence interval (CI): [32.3%, 33.5%]); 51/144) with an FPR of 14.9 (95% CI [12.4, 13.9]). The overall sensitivity was 23.8% (95% CI: [21.3%, 22.8%]; 55/231) and PPV was 19.1% (95% CI: [18.5%, 20.4%]; 98/ of 513), with an FPR of 15.4 (95% CI [12.9, 14.5]). Ninety-five percent of the lesions that SSD failed to detect were also undetectable to radiologists (168/176). Twenty-four percent of the lesions (13/50) detected by the SSD were undetectable to radiologists. Logistic regression analysis indicated that density, necrosis, and size contributed to the lesions' visibility for radiologists, while for the SSD, the surrounding edema also enhanced the detection performance. CONCLUSION The SSD model we developed could detect brain metastases larger than 6 mm to some extent, a quarter of which were even retrospectively unrecognizable to radiologists.
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Affiliation(s)
- Shimpei Kato
- Department of Radiology, The Graduate School of Medicine, University of Tokyo, 7‑3‑1 Hongo, Bunkyo‑ku, Tokyo, 113‑8655, Japan
| | - Shiori Amemiya
- Department of Radiology, The Graduate School of Medicine, University of Tokyo, 7‑3‑1 Hongo, Bunkyo‑ku, Tokyo, 113‑8655, Japan.
| | - Hidemasa Takao
- Department of Radiology, The Graduate School of Medicine, University of Tokyo, 7‑3‑1 Hongo, Bunkyo‑ku, Tokyo, 113‑8655, Japan
| | - Hiroshi Yamashita
- Department of Radiology, Teikyo University Hospital, Mizonokuchi, 5-1-1 Futago, Takatsu-ku, Kawasaki, Kanagawa, 213-8507, Japan
| | - Naoya Sakamoto
- Department of Radiology, The Graduate School of Medicine, University of Tokyo, 7‑3‑1 Hongo, Bunkyo‑ku, Tokyo, 113‑8655, Japan
| | - Osamu Abe
- Department of Radiology, The Graduate School of Medicine, University of Tokyo, 7‑3‑1 Hongo, Bunkyo‑ku, Tokyo, 113‑8655, Japan
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Shrestha S, Munakomi S. Do Multiple Brain Lesions Always Connote Worse Outcomes? Appraisal Evidence from a Tertiary Care Center in Koshi/Purbanchal Province of Nepal. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2021; 1374:91-103. [PMID: 34061333 DOI: 10.1007/5584_2021_642] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Advances in medicine comprising diverse diagnostic and management modalities call for a bundle approach to improve patient care. This study aimed to present diagnostic patterns in patients with multiple intracranial lesions together with connoted survival implications. We retrospectively reviewed medical files of 85 patients with tumor and non-tumor intracranial lesions. Metastatic brain lesions were identified in 23.5% of patients. Neurological pathogenesis underlay 29.4%, infectious 21.2%, and vascular 14.1% of lesions, with the remaining portion comprising less frequent disorders. A favorable prognosis was predicted in 52/85 (61.2%) of the study population despite a variety of pathologies, which speaks for substantial improvements in outcomes of once hardly manageable or mortal brain disorders, comprising both common and rare conditions. The improvements are to the credit of advances in medical radio-imaging enhancing the diagnostic power which enables a precise stratification of brain pathologies. We emphasize the use of an algorithmic evaluation of patients presenting with multiple brain lesions for differential diagnosis and survival prognostication. There seems to be an ongoing transition from imperfect probabilistic prediction models to precision medicine, which determines advantages in disease management and outcome.
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Affiliation(s)
- Sangam Shrestha
- Department of Psychiatry, National Academy of Medical Sciences, Bir Hospital Nursing Campus, Gaushala, Kathmandu, Nepal
| | - Sunil Munakomi
- Department of Neurosurgery, College of Medical Sciences, Bharatpur, Chitwan, Nepal.
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50
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Milano MT, Chiang VLS, Soltys SG, Wang TJC, Lo SS, Brackett A, Nagpal S, Chao S, Garg AK, Jabbari S, Halasz LM, Gephart MH, Knisely JPS, Sahgal A, Chang EL. Executive summary from American Radium Society's appropriate use criteria on neurocognition after stereotactic radiosurgery for multiple brain metastases. Neuro Oncol 2021; 22:1728-1741. [PMID: 32780818 DOI: 10.1093/neuonc/noaa192] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND The American Radium Society (ARS) Appropriate Use Criteria brain malignancies panel systematically reviewed (PRISMA [Preferred Reporting Items for Systematic Reviews and Meta-Analyses]) published literature on neurocognitive outcomes after stereotactic radiosurgery (SRS) for patients with multiple brain metastases (BM) to generate consensus guidelines. METHODS The panel developed 4 key questions (KQs) to guide systematic review. From 11 614 original articles, 12 were selected. The panel developed model cases addressing KQs and potentially controversial scenarios not addressed in the systematic review (which might inform future ARS projects). Based upon quality of evidence, the panel confidentially voted on treatment options using a 9-point scale of appropriateness. RESULTS The panel agreed that SRS alone is usually appropriate for those with good performance status and 2-10 asymptomatic BM, and usually not appropriate for >20 BM. For 11-15 and 16-20 BM there was (between 2 case variants) agreement that SRS alone may be appropriate or disagreement on the appropriateness of SRS alone. There was no scenario (among 6 case variants) in which conventional whole-brain radiotherapy (WBRT) was considered usually appropriate by most panelists. There were several areas of disagreement, including: hippocampal sparing WBRT for 2-4 asymptomatic BM; WBRT for resected BM amenable to SRS; fractionated versus single-fraction SRS for resected BM, larger targets, and/or brainstem metastases; optimal treatment (WBRT, hippocampal sparing WBRT, SRS alone to all or select lesions) for patients with progressive extracranial disease, poor performance status, and no systemic options. CONCLUSIONS For patients with 2-10 BM, SRS alone is an appropriate treatment option for well-selected patients with good performance status. Future study is needed for those scenarios in which there was disagreement among panelists.
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Affiliation(s)
- Michael T Milano
- Department of Radiation Oncology, University of Rochester, Rochester, NY
| | - Veronica L S Chiang
- Department of Neurosurgery, Yale School of Medicine, Yale University, New Haven, CT
| | - Scott G Soltys
- Department of Radiation Oncology, Stanford University Medical Center, Stanford, CT
| | - Tony J C Wang
- Department of Radiation Oncology, Columbia University Irving Medical Center, New York, NY
| | - Simon S Lo
- Department of Radiation Oncology, University of Washington, Seattle, WA
| | - Alexandria Brackett
- Cushing/Whitney Medical Library, Yale School of Medicine, Yale University, New Haven, CT
| | - Seema Nagpal
- Department of Neurology, Stanford University School of Medicine, Stanford, CT
| | - Samuel Chao
- Department of Radiation Oncology, Taussig Cancer Institute, Cleveland Clinic, Cleveland, OH
| | - Amit K Garg
- Department of Radiation Oncology, University of Texas MD Anderson Cancer Center, Albuquerque, NM
| | - Siavash Jabbari
- Laurel Amtower Cancer Institute and Neuro-oncology Center, Sharp Healthcare, San Diego, CA
| | - Lia M Halasz
- Department of Radiation Oncology, University of Washington, Seattle, WA
| | | | - Jonathan P S Knisely
- Department of Radiation Oncology, Weill Cornell Medicine, Cornell University, New York, NY
| | - Arjun Sahgal
- Department of Radiation Oncology, Odette Cancer Centre, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, ON
| | - Eric L Chang
- Department of Radiation Oncology, Keck School of Medicine of University of Southern California, Los Angeles, CA
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