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Dong X, Chen G, Zhu Y, Ma B, Ban X, Wu N, Ming Y. Artificial intelligence in skeletal metastasis imaging. Comput Struct Biotechnol J 2024; 23:157-164. [PMID: 38144945 PMCID: PMC10749216 DOI: 10.1016/j.csbj.2023.11.007] [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: 05/15/2023] [Revised: 11/02/2023] [Accepted: 11/02/2023] [Indexed: 12/26/2023] Open
Abstract
In the field of metastatic skeletal oncology imaging, the role of artificial intelligence (AI) is becoming more prominent. Bone metastasis typically indicates the terminal stage of various malignant neoplasms. Once identified, it necessitates a comprehensive revision of the initial treatment regime, and palliative care is often the only resort. Given the gravity of the condition, the diagnosis of bone metastasis should be approached with utmost caution. AI techniques are being evaluated for their efficacy in a range of tasks within medical imaging, including object detection, disease classification, region segmentation, and prognosis prediction in medical imaging. These methods offer a standardized solution to the frequently subjective challenge of image interpretation.This subjectivity is most desirable in bone metastasis imaging. This review describes the basic imaging modalities of bone metastasis imaging, along with the recent developments and current applications of AI in the respective imaging studies. These concrete examples emphasize the importance of using computer-aided systems in the clinical setting. The review culminates with an examination of the current limitations and prospects of AI in the realm of bone metastasis imaging. To establish the credibility of AI in this domain, further research efforts are required to enhance the reproducibility and attain robust level of empirical support.
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Affiliation(s)
- Xiying Dong
- Department of Orthopedic Surgery, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100730, China
- Key Laboratory of Big Data for Spinal Deformities, Chinese Academy of Medical Sciences, Beijing 100730, China
- Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
- Department of Urology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, 100021 Beijing, China
| | - Guilin Chen
- Department of Orthopedic Surgery, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100730, China
- Key Laboratory of Big Data for Spinal Deformities, Chinese Academy of Medical Sciences, Beijing 100730, China
- Graduate School of Peking Union Medical College, Beijing 100730, China
| | - Yuanpeng Zhu
- Department of Orthopedic Surgery, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100730, China
- Key Laboratory of Big Data for Spinal Deformities, Chinese Academy of Medical Sciences, Beijing 100730, China
- Graduate School of Peking Union Medical College, Beijing 100730, China
| | - Boyuan Ma
- School of Intelligence Science and Technology, University of Science and Technology Beijing, Beijing, China
| | - Xiaojuan Ban
- School of Intelligence Science and Technology, University of Science and Technology Beijing, Beijing, China
| | - Nan Wu
- Department of Orthopedic Surgery, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100730, China
- Key Laboratory of Big Data for Spinal Deformities, Chinese Academy of Medical Sciences, Beijing 100730, China
- Beijing Key Laboratory for Genetic Research of Skeletal Deformity, Beijing 100730, China
| | - Yue Ming
- Department of Nuclear Medicine (PET-CT Center), National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
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Miyahira AK, Soule HR. The 30th Annual Prostate Cancer Foundation Scientific Retreat Report. Prostate 2024; 84:1271-1289. [PMID: 39021296 DOI: 10.1002/pros.24768] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/28/2024] [Accepted: 07/02/2024] [Indexed: 07/20/2024]
Abstract
BACKGROUND The 30th Annual Prostate Cancer Foundation (PCF) Scientific Retreat was held at the Omni La Costa Resort in Carlsbad, CA, from October 26 to 28, 2023. A hybrid component was included for virtual attendees. METHODS The Annual PCF Scientific Retreat is a leading international scientific conference focused on pioneering, unpublished, and impactful studies across the spectrum of basic through clinical prostate cancer research, as well as research from related fields with significant potential for improving prostate cancer research and patient outcomes. RESULTS The 2023 PCF Retreat concentrated on key areas of research, including: (i) the biology of cancer stem cells and prostate cancer lineage plasticity; (ii) mechanisms of treatment resistance; (iii) emerging AI applications in diagnostic medicine; (iv) analytical and computational biology approaches in cancer research; (v) the role of nerves in prostate cancer; (vi) the biology of prostate cancer bone metastases; (vii) the contribution of ancestry and genomics to prostate cancer disparities; (viii) prostate cancer 3D genomics; (ix) progress in new targets and treatments for prostate cancer; (x) the biology and translational applications of tumor extracellular vesicles; (xi) updates from PCF TACTICAL Award teams; (xii) novel platforms for small molecule molecular glues and binding inhibitors; and (xiii) diversity, equity and inclusion strategies for advancing cancer care equity. CONCLUSIONS This meeting report summarizes the presentations and discussions from the 2023 PCF Scientific Retreat. We hope that sharing this information will deepen our understanding of current and emerging research and drive future advancements in prostate cancer patient care.
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Affiliation(s)
- Andrea K Miyahira
- Department of Science, Prostate Cancer Foundation, Santa Monica, California, USA
| | - Howard R Soule
- Department of Science, Prostate Cancer Foundation, Santa Monica, California, USA
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Lokre O, Perk TG, Weisman AJ, Govindan RM, Chen S, Chen M, Eickhoff J, Liu G, Jeraj R. Quantitative evaluation of lesion response heterogeneity for superior prognostication of clinical outcome. Eur J Nucl Med Mol Imaging 2024:10.1007/s00259-024-06764-0. [PMID: 38819668 DOI: 10.1007/s00259-024-06764-0] [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: 02/22/2024] [Accepted: 05/12/2024] [Indexed: 06/01/2024]
Abstract
PURPOSE Standardized reporting of treatment response in oncology patients has traditionally relied on methods like RECIST, PERCIST and Deauville score. These endpoints assess only a few lesions, potentially overlooking the response heterogeneity of all disease. This study hypothesizes that comprehensive spatial-temporal evaluation of all individual lesions is necessary for superior prognostication of clinical outcome. METHODS [18F]FDG PET/CT scans from 241 patients (127 diffuse large B-cell lymphoma (DLBCL) and 114 non-small cell lung cancer (NSCLC)) were retrospectively obtained at baseline and either during chemotherapy or post-chemoradiotherapy. An automated TRAQinform IQ software (AIQ Solutions) analyzed the images, performing quantification of change in regions of interest suspicious of cancer (lesion-ROI). Multivariable Cox proportional hazards (CoxPH) models were trained to predict overall survival (OS) with varied sets of quantitative features and lesion-ROI, compared by bootstrapping with C-index and t-tests. The best-fit model was compared to automated versions of previously established methods like RECIST, PERCIST and Deauville score. RESULTS Multivariable CoxPH models demonstrated superior prognostic power when trained with features quantifying response heterogeneity in all individual lesion-ROI in DLBCL (C-index = 0.84, p < 0.001) and NSCLC (C-index = 0.71, p < 0.001). Prognostic power significantly deteriorated (p < 0.001) when using subsets of lesion-ROI (C-index = 0.78 and 0.67 for DLBCL and NSCLC, respectively) or excluding response heterogeneity (C-index = 0.67 and 0.70). RECIST, PERCIST, and Deauville score could not significantly associate with OS (C-index < 0.65 and p > 0.1), performing significantly worse than the multivariable models (p < 0.001). CONCLUSIONS Quantitative evaluation of response heterogeneity of all individual lesions is necessary for the superior prognostication of clinical outcome.
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Affiliation(s)
- Ojaswita Lokre
- AIQ Solutions, 8000 Excelsior Dr Suite 400, Madison, WI, 53717, United States of America.
| | - Timothy G Perk
- AIQ Solutions, 8000 Excelsior Dr Suite 400, Madison, WI, 53717, United States of America
| | - Amy J Weisman
- AIQ Solutions, 8000 Excelsior Dr Suite 400, Madison, WI, 53717, United States of America
| | | | - Song Chen
- Department of Nuclear Medicine, The First Hospital of China Medical University, Shenyang, Liaoning, China
| | - Meijie Chen
- Department of Nuclear Medicine, The First Hospital of China Medical University, Shenyang, Liaoning, China
| | - Jens Eickhoff
- Department of Medical Physics, University of Wisconsin-Madison, Madison, WI, United States of America
| | - Glenn Liu
- AIQ Solutions, 8000 Excelsior Dr Suite 400, Madison, WI, 53717, United States of America
- Department of Medical Physics, University of Wisconsin-Madison, Madison, WI, United States of America
| | - Robert Jeraj
- AIQ Solutions, 8000 Excelsior Dr Suite 400, Madison, WI, 53717, United States of America
- Department of Medical Physics, University of Wisconsin-Madison, Madison, WI, United States of America
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Zamani-Siahkali N, Mirshahvalad SA, Farbod A, Divband G, Pirich C, Veit-Haibach P, Cook G, Beheshti M. SPECT/CT, PET/CT, and PET/MRI for Response Assessment of Bone Metastases. Semin Nucl Med 2024; 54:356-370. [PMID: 38172001 DOI: 10.1053/j.semnuclmed.2023.11.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Accepted: 11/14/2023] [Indexed: 01/05/2024]
Abstract
Recent developments in hybrid SPECT/CT systems and the use of cadmium-zinc-telluride (CZT) detectors have improved the diagnostic accuracy of bone scintigraphy. These advancements have paved the way for novel quantitative approaches to accurate and reproducible treatment monitoring of bone metastases. PET/CT imaging using [18F]F-FDG and [18F]F-NaF have shown promising clinical utility in bone metastases assessment and monitoring response to therapy and prediction of treatment response in a broad range of malignancies. Additionally, specific tumor-targeting tracers like [99mTc]Tc-PSMA, [68Ga]Ga-PSMA, or [11C]C- or [18F]F-Choline revealed high diagnostic performance for early assessment and prognostication of bone metastases, particularly in prostate cancer. PET/MRI appears highly accurate imaging modality, but has associated limitations notably, limited availability, more complex logistics and high installation costs. Advances in artificial intelligence (Al) seem to improve the accuracy of imaging modalities and provide an assistant role in the evaluation of treatment response of bone metastases.
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Affiliation(s)
- Nazanin Zamani-Siahkali
- Division of Molecular Imaging and Theranostics, Department of Nuclear Medicine, University Hospital, Paracelsus Medical University, Salzburg, Austria; Research Center for Nuclear Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Seyed Ali Mirshahvalad
- Division of Molecular Imaging and Theranostics, Department of Nuclear Medicine, University Hospital, Paracelsus Medical University, Salzburg, Austria; Joint Department of Medical Imaging, University Medical Imaging Toronto, University Health Network, Sinai Health System, Women's College Hospital, University of Toronto, Toronto, Canada
| | - Abolfazl Farbod
- Division of Molecular Imaging and Theranostics, Department of Nuclear Medicine, University Hospital, Paracelsus Medical University, Salzburg, Austria; Research Center for Nuclear Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | | | - Christian Pirich
- Division of Molecular Imaging and Theranostics, Department of Nuclear Medicine, University Hospital, Paracelsus Medical University, Salzburg, Austria
| | - Patrick Veit-Haibach
- Joint Department of Medical Imaging, University Medical Imaging Toronto, University Health Network, Sinai Health System, Women's College Hospital, University of Toronto, Toronto, Canada
| | - Gary Cook
- Cancer Imaging Department, School of Biomedical Engineering and Imaging Sciences, King's College London, London, UK
| | - Mohsen Beheshti
- Division of Molecular Imaging and Theranostics, Department of Nuclear Medicine, University Hospital, Paracelsus Medical University, Salzburg, Austria.
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Huff DT, Santoro-Fernandes V, Chen S, Chen M, Kashuk C, Weisman AJ, Jeraj R, Perk TG. Performance of an automated registration-based method for longitudinal lesion matching and comparison to inter-reader variability. Phys Med Biol 2023; 68:175031. [PMID: 37567220 PMCID: PMC10461173 DOI: 10.1088/1361-6560/acef8f] [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: 05/05/2023] [Revised: 07/25/2023] [Accepted: 08/11/2023] [Indexed: 08/13/2023]
Abstract
Objective.Patients with metastatic disease are followed throughout treatment with medical imaging, and accurately assessing changes of individual lesions is critical to properly inform clinical decisions. The goal of this work was to assess the performance of an automated lesion-matching algorithm in comparison to inter-reader variability (IRV) of matching lesions between scans of metastatic cancer patients.Approach.Forty pairs of longitudinal PET/CT and CT scans were collected and organized into four cohorts: lung cancers, head and neck cancers, lymphomas, and advanced cancers. Cases were also divided by cancer burden: low-burden (<10 lesions), intermediate-burden (10-29), and high-burden (30+). Two nuclear medicine physicians conducted independent reviews of each scan-pair and manually matched lesions. Matching differences between readers were assessed to quantify the IRV of lesion matching. The two readers met to form a consensus, which was considered a gold standard and compared against the output of an automated lesion-matching algorithm. IRV and performance of the automated method were quantified using precision, recall, F1-score, and the number of differences.Main results.The performance of the automated method did not differ significantly from IRV for any metric in any cohort (p> 0.05, Wilcoxon paired test). In high-burden cases, the F1-score (median [range]) was 0.89 [0.63, 1.00] between the automated method and reader consensus and 0.93 [0.72, 1.00] between readers. In low-burden cases, F1-scores were 1.00 [0.40, 1.00] and 1.00 [0.40, 1.00], for the automated method and IRV, respectively. Automated matching was significantly more efficient than either reader (p< 0.001). In high-burden cases, median matching time for the readers was 60 and 30 min, respectively, while automated matching took a median of 3.9 minSignificance.The automated lesion-matching algorithm was successful in performing lesion matching, meeting the benchmark of IRV. Automated lesion matching can significantly expedite and improve the consistency of longitudinal lesion-matching.
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Affiliation(s)
- Daniel T Huff
- AIQ Solutions, Madison, WI, United States of America
| | - Victor Santoro-Fernandes
- University of Wisconsin-Madison, Department of Medical Physics, Madison, WI, United States of America
| | - Song Chen
- The First Hospital of China Medical University, Department of Nuclear Medicine, Shenyang, Liaoning, CN, People’s Republic of China
| | - Meijie Chen
- The First Hospital of China Medical University, Department of Nuclear Medicine, Shenyang, Liaoning, CN, People’s Republic of China
| | - Carl Kashuk
- AIQ Solutions, Madison, WI, United States of America
| | - Amy J Weisman
- AIQ Solutions, Madison, WI, United States of America
| | - Robert Jeraj
- University of Wisconsin-Madison, Department of Medical Physics, Madison, WI, United States of America
- University of Ljubljana, Faculty of Mathematics and Physics, Ljubljana, SI, Slovenia
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Lindgren Belal S, Larsson M, Holm J, Buch-Olsen KM, Sörensen J, Bjartell A, Edenbrandt L, Trägårdh E. Automated quantification of PET/CT skeletal tumor burden in prostate cancer using artificial intelligence: The PET index. Eur J Nucl Med Mol Imaging 2023; 50:1510-1520. [PMID: 36650356 PMCID: PMC10027829 DOI: 10.1007/s00259-023-06108-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Accepted: 01/05/2023] [Indexed: 01/19/2023]
Abstract
PURPOSE Consistent assessment of bone metastases is crucial for patient management and clinical trials in prostate cancer (PCa). We aimed to develop a fully automated convolutional neural network (CNN)-based model for calculating PET/CT skeletal tumor burden in patients with PCa. METHODS A total of 168 patients from three centers were divided into training, validation, and test groups. Manual annotations of skeletal lesions in [18F]fluoride PET/CT scans were used to train a CNN. The AI model was evaluated in 26 patients and compared to segmentations by physicians and to a SUV 15 threshold. PET index representing the percentage of skeletal volume taken up by lesions was estimated. RESULTS There was no case in which all readers agreed on prevalence of lesions that the AI model failed to detect. PET index by the AI model correlated moderately strong to physician PET index (mean r = 0.69). Threshold PET index correlated fairly with physician PET index (mean r = 0.49). The sensitivity for lesion detection was 65-76% for AI, 68-91% for physicians, and 44-51% for threshold depending on which physician was considered reference. CONCLUSION It was possible to develop an AI-based model for automated assessment of PET/CT skeletal tumor burden. The model's performance was superior to using a threshold and provides fully automated calculation of whole-body skeletal tumor burden. It could be further developed to apply to different radiotracers. Objective scan evaluation is a first step toward developing a PET/CT imaging biomarker for PCa skeletal metastases.
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Affiliation(s)
- Sarah Lindgren Belal
- Division of Nuclear Medicine, Department of Translational Medicine, Lund University, Malmö, Sweden.
- Department of Surgery, Skåne University Hospital, Malmö, Sweden.
- Wallenberg Center for Molecular Medicine, Lund University, Malmö, Sweden.
| | | | - Jorun Holm
- Department of Nuclear Medicine, Odense University Hospital, Odense, Denmark
| | | | - Jens Sörensen
- Division of Radiology, Department of Surgical Sciences, Uppsala University, Uppsala, Sweden
| | - Anders Bjartell
- Division of Urological Cancer, Department of Translational Medicine, Lund University, Malmö, Sweden
| | - Lars Edenbrandt
- Department of Molecular and Clinical Medicine, Institute of Medicine, Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden
| | - Elin Trägårdh
- Division of Nuclear Medicine, Department of Translational Medicine, Lund University, Malmö, Sweden
- Wallenberg Center for Molecular Medicine, Lund University, Malmö, Sweden
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Schott B, Weisman AJ, Perk TG, Roth AR, Liu G, Jeraj R. Comparison of automated full-body bone metastases delineation methods and their corresponding prognostic power. Phys Med Biol 2023; 68. [PMID: 36580684 DOI: 10.1088/1361-6560/acaf22] [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: 08/11/2022] [Accepted: 12/29/2022] [Indexed: 12/30/2022]
Abstract
Objective.Manual disease delineation in full-body imaging of patients with multiple metastases is often impractical due to high disease burden. However, this is a clinically relevant task as quantitative image techniques assessing individual metastases, while limited, have been shown to be predictive of treatment outcome. The goal of this work was to evaluate the efficacy of deep learning-based methods for full-body delineation of skeletal metastases and to compare their performance to existing methods in terms of disease delineation accuracy and prognostic power.Approach.1833 suspicious lesions on 3718F-NaF PET/CT scans of patients with metastatic castration-resistant prostate cancer (mCRPC) were contoured and classified as malignant, equivocal, or benign by a nuclear medicine physician. Two convolutional neural network (CNN) architectures (DeepMedic and nnUNet)were trained to delineate malignant disease regions with and without three-model ensembling. Malignant disease contours using previously established methods were obtained. The performance of each method was assessed in terms of four different tasks: (1) detection, (2) segmentation, (3) PET SUV metric correlations with physician-based data, and (4) prognostic power of progression-free survival.Main Results.The nnUnet three-model ensemble achieved superior detection performance with a mean (+/- standard deviation) sensitivity of 82.9±ccc 0.1% at the selected operating point. The nnUnet single and three-model ensemble achieved comparable segmentation performance with a mean Dice coefficient of 0.80±0.12 and 0.79±0.12, respectively, both outperforming other methods. The nnUNet ensemble achieved comparable or superior SUV metric correlation performance to gold-standard data. Despite superior disease delineation performance, the nnUNet methods did not display superior prognostic power over other methods.Significance.This work showed that CNN-based (nnUNet) methods are superior to the non-CNN methods for mCRPC disease delineation in full-body18F-NaF PET/CT. The CNN-based methods, however, do not hold greater prognostic power for predicting clinical outcome. This merits more investigation on the optimal selection of delineation methods for specific clinical tasks.
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Affiliation(s)
- Brayden Schott
- Department of Medical Physics, University of Wisconsin-Madison, Madison, WI, United States of America
| | - Amy J Weisman
- Department of Medical Physics, University of Wisconsin-Madison, Madison, WI, United States of America.,AIQ Solutions, Madison, WI, United States of America
| | - Timothy G Perk
- Department of Medical Physics, University of Wisconsin-Madison, Madison, WI, United States of America.,AIQ Solutions, Madison, WI, United States of America
| | - Alison R Roth
- Department of Medical Physics, University of Wisconsin-Madison, Madison, WI, United States of America
| | - Glenn Liu
- Department of Medicine, University of Wisconsin-Madison, Madison, WI, United States of America
| | - Robert Jeraj
- Department of Medical Physics, University of Wisconsin-Madison, Madison, WI, United States of America.,Faculty of Mathematics and Physics, University of Ljubljana, Ljubljana, Slovenia
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Anderson PM, Subbiah V, Trucco MM. Current and future targeted alpha particle therapies for osteosarcoma: Radium-223, actinium-225, and thorium-227. Front Med (Lausanne) 2022; 9:1030094. [PMID: 36457575 PMCID: PMC9705365 DOI: 10.3389/fmed.2022.1030094] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2022] [Accepted: 10/07/2022] [Indexed: 07/30/2023] Open
Abstract
Osteosarcoma is a high-grade sarcoma characterized by osteoid formation, nearly universal expression of IGF1R and with a subset expressing HER-2. These qualities provide opportunities for the use of the alpha particle-emitting isotopes to provide targeted radiation therapy via alpha particles precisely to bone-forming tumors in addition to IFG1R or Her-2 expressing metastases. This review will detail experience using the alpha emitter radium-223 (223Ra, tradename Xofigo), that targets bone formation, in osteosarcoma, specifically related to patient selection, use of gemcitabine for radio-sensitization, and using denosumab to increasing the osteoblastic phenotype of these cancers. A case of an inoperable left upper lobe vertebral-paraspinal-mediastinal osteoblastic lesion treated successfully with 223Ra combined with gemcitabine is described. Because not all areas of osteosarcoma lesions are osteoblastic, but nearly all osteosarcoma cells overexpress IGF1R, and some subsets expressing Her-2, the anti-IGF1R antibody FPI-1434 linked to actinium-225 (225Ac) or the Her-2 antibody linked to thorium-227 (227Th) may become other means to provide targeted alpha particle therapy against osteosarcoma (NCT03746431 and NCT04147819).
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Affiliation(s)
- Peter M. Anderson
- Department of Pediatric Hematology, Oncology and Bone Marrow Transplant, Cleveland Clinic Children’s Hospital, Pediatric Institute, Cleveland Clinic, Cleveland, OH, United States
| | - Vivek Subbiah
- Investigational Cancer Therapeutics, Cancer Medicine, Clinical Center for Targeted Therapy, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
- Division of Pediatrics, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Matteo M. Trucco
- Department of Pediatric Hematology, Oncology and Bone Marrow Transplant, Cleveland Clinic Children’s Hospital, Pediatric Institute, Cleveland Clinic, Cleveland, OH, United States
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Wang D, Li H, Guo C, Huang S, Guo X, Xiao J. The value of 18F-NaF PET/CT in the diagnosis of bone metastases in patients with nasopharyngeal carcinoma using visual and quantitative analyses. Front Bioeng Biotechnol 2022; 10:949480. [PMID: 36091460 PMCID: PMC9449352 DOI: 10.3389/fbioe.2022.949480] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2022] [Accepted: 08/01/2022] [Indexed: 11/21/2022] Open
Abstract
To assess the diagnostic value of 18F-NaF PET/CT in diagnosing bone metastases in patients with nasopharyngeal carcinoma (NPC) using visual and quantitative analyses. 164 patients with NPC who underwent 18F-NaF PET/CT between 2017 and 2021 were included. The sensitivity, specificity, and accuracy were calculated. All bone lesions were divided into metastatic bone lesion group and benign lesion group; the benign lesion group was further subdivided into benign lesion without osteophyte and fracture group (CT images showing no osteophyte, no fracture), and benign lesion with osteophyte and fracture group (CT images showing typical osteophytes and fractures), the differences in maximum standardized uptake value (SUVmax) were compared between every two groups, and the diagnostic cut-off values were derived from receiver operating characteristic curves (ROC). Quantitative data were expressed as mean ± SD, multiple continuous variables were compared using one-way analysis of variance (ANOVA), and multiple comparisons among more than two groups were made using the Bonferroni method. The sensitivity, specificity, and overall accuracy of 18F-NaF PET/CT for the diagnosis of bone metastases in NPC were 97.1%, 94.6%, and 95.1% based on the patient level and 99.5%, 91.5%, and 96.4% based on the lesion level, respectively. The SUVmax was significantly different between the metastatic bone lesion group and the benign lesion without osteophyte and fracture group (p < 0.05); the area under the curve was 0.865, the threshold was 12.5, the sensitivity was 0.912, and the specificity was 0.656. Visual analysis of 18F-NaF PET/CT has high sensitivity and specificity for diagnosing bone metastases in NPC. After excluding osteophytes and fracture lesions based on CT findings, using SUVmax ≥12.5 as the threshold can be an important reference for the differential diagnosis of bone metastases and benign bone lesions in patients with NPC.
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Affiliation(s)
- Dong Wang
- Department of Nuclear Medicine (PET-CT center), Affiliated Hospital of Guangdong Medical University, ZhangJiang, China
| | - HaiWen Li
- Cancer Center, Affiliated Hospital of Guangdong Medical University, ZhangJiang, China
| | - ChengMao Guo
- Department of Nuclear Medicine (PET-CT center), Affiliated Hospital of Guangdong Medical University, ZhangJiang, China
| | - Shisang Huang
- Department of Nuclear Medicine (PET-CT center), Affiliated Hospital of Guangdong Medical University, ZhangJiang, China
| | - XuFeng Guo
- Department of Nuclear Medicine (PET-CT center), Affiliated Hospital of Guangdong Medical University, ZhangJiang, China
| | - JingXing Xiao
- Department of Nuclear Medicine (PET-CT center), Affiliated Hospital of Guangdong Medical University, ZhangJiang, China
- *Correspondence: JingXing Xiao,
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Kairemo K, Macapinlac HA. Oncology, bone metastases. Nucl Med Mol Imaging 2022. [DOI: 10.1016/b978-0-12-822960-6.00032-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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11
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Razmaria AA, Schoder H, Morris MJ. Advances in Prostate Cancer Imaging. Urol Oncol 2022. [DOI: 10.1007/978-3-030-89891-5_8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Paravastu SS, Hasani N, Farhadi F, Collins MT, Edenbrandt L, Summers RM, Saboury B. Applications of Artificial Intelligence in 18F-Sodium Fluoride Positron Emission Tomography/Computed Tomography:: Current State and Future Directions. PET Clin 2021; 17:115-135. [PMID: 34809861 DOI: 10.1016/j.cpet.2021.09.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
This review discusses the current state of artificial intelligence (AI) in 18F-NaF-PET/CT imaging and the potential applications to come in diagnosis, prognostication, and improvement of care in patients with bone diseases, with emphasis on the role of AI algorithms in CT bone segmentation, relying on their prevalence in medical imaging and utility in the extraction of spatial information in combined PET/CT studies.
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Affiliation(s)
- Sriram S Paravastu
- Department of Radiology and Imaging Sciences, Clinical Center, National Institutes of Health (NIH), 9000 Rockville Pike, Building 10, Room 1C455, Bethesda, MD 20892, USA; Skeletal Disorders and Mineral Homeostasis Section, National Institute of Dental and Craniofacial Research, National Institutes of Health (NIH), 30 Convent Dr., Building 30, Room 228 MSC 4320, Bethesda, MD 20892, USA
| | - Navid Hasani
- Department of Radiology and Imaging Sciences, Clinical Center, National Institutes of Health (NIH), 9000 Rockville Pike, Building 10, Room 1C455, Bethesda, MD 20892, USA; University of Queensland Faculty of Medicine, Ochsner Clinical School, New Orleans, LA 70121, USA
| | - Faraz Farhadi
- Department of Radiology and Imaging Sciences, Clinical Center, National Institutes of Health (NIH), 9000 Rockville Pike, Building 10, Room 1C455, Bethesda, MD 20892, USA; Geisel School of Medicine at Dartmouth, Hanover, NH 03755, USA
| | - Michael T Collins
- Skeletal Disorders and Mineral Homeostasis Section, National Institute of Dental and Craniofacial Research, National Institutes of Health (NIH), 30 Convent Dr., Building 30, Room 228 MSC 4320, Bethesda, MD 20892, USA
| | - Lars Edenbrandt
- Department of Clinical Physiology, Sahlgrenska University Hospital, Göteborg, Sweden
| | - Ronald M Summers
- Department of Radiology and Imaging Sciences, Clinical Center, National Institutes of Health (NIH), 9000 Rockville Pike, Building 10, Room 1C455, Bethesda, MD 20892, USA
| | - Babak Saboury
- Department of Radiology and Imaging Sciences, Clinical Center, National Institutes of Health (NIH), 9000 Rockville Pike, Building 10, Room 1C455, Bethesda, MD 20892, USA; Department of Computer Science and Electrical Engineering, University of Maryland- Baltimore County, Baltimore, MD, USA; Department of Radiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.
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13
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Ma K, Harmon SA, Klyuzhin IS, Rahmim A, Turkbey B. Clinical Application of Artificial Intelligence in Positron Emission Tomography: Imaging of Prostate Cancer. PET Clin 2021; 17:137-143. [PMID: 34809863 DOI: 10.1016/j.cpet.2021.09.002] [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: 12/17/2022]
Abstract
PET imaging with targeted novel tracers has been commonly used in the clinical management of prostate cancer. The use of artificial intelligence (AI) in PET imaging is a relatively new approach and in this review article, we will review the current trends and categorize the currently available research into the quantification of tumor burden within the organ, evaluation of metastatic disease, and translational/supplemental research which aims to improve other AI research efforts.
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Affiliation(s)
- Kevin Ma
- Artificial Intelligence Resource, Molecular Imaging Branch, NCI, NIH, Bethesda, MD, USA
| | - Stephanie A Harmon
- Artificial Intelligence Resource, Molecular Imaging Branch, NCI, NIH, Bethesda, MD, USA
| | - Ivan S Klyuzhin
- Department of Integrative Oncology, BC Cancer Research Institute, Vancouver, British Columbia, Canada
| | - Arman Rahmim
- Department of Integrative Oncology, BC Cancer Research Institute, Vancouver, British Columbia, Canada; Department of Radiology, University of British Columbia, Vancouver, British Columbia, Canada; Department of Physics, University of British Columbia, Vancouver, British Columbia, Canada
| | - Baris Turkbey
- Artificial Intelligence Resource, Molecular Imaging Branch, NCI, NIH, Bethesda, MD, USA.
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14
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Lin M, Jin Y, Yang Z, Hu X, Zhang J. Determination and clinical significance of bone pseudoprogression in hormone receptor-positive metastatic breast cancer. Ther Adv Med Oncol 2021; 13:17588359211022881. [PMID: 34188696 PMCID: PMC8209838 DOI: 10.1177/17588359211022881] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Accepted: 05/18/2021] [Indexed: 11/16/2022] Open
Abstract
Background 99mTechnetium labeled methylene diphosphonate bone scans (BSs) are commonly used to monitor disease progression in bone for patients with metastatic breast cancer (MBC). However, new BS lesions may represent osteoblastic bone healing, which we now define as bone pseudoprogression. In this study, we aimed to assess the clinical significance and determination methods of bone pseudoprogression. Methods This retrospective analysis was conducted among 48 patients with hormone receptor-positive MBC treated with first-line endocrine therapy. Four months after initiating therapy, all the participants did not show extraosseous disease progression. Participants were divided into two groups according to the presence of new BS lesions. All the patients continued on treatment until explicit disease progression (extraosseous disease progression or progressive lysis on bone lesions). Explicit progression-free survival (PFS) and extraosseous objective response rate were analyzed between the two groups. Results New BS lesions were observed in 11 of 48 (22.9%) patients. All the new BS lesions appeared as osteoblastic bone lesions on computed tomography. For patients with new BS lesions, the median PFS was 26.57 months [95% confidence interval (CI) 15.46-37.68], which was similar to that (29.57 months; 95% CI 19.24-39.90) in patients without new BS lesions [hazard ratio: 1.098 (95% CI 0.482-2.503), p = 0.818]. Notably, 82.9% of patients without new BS lesions showed an extraosseous objective response, whereas 85.7% of patients with new BS lesions demonstrated an extraosseous objective response [odds ratio: 0.806 (95% CI 0.061-5.682), p = 0.999]. The median interval between bone pseudoprogression and true disease progression was 21.26 months (95% CI 10.11-32.42). Conclusions Osteoblastic new BS lesions detected on follow-up BSs may represent bone pseudoprogression. Clinicians should raise awareness of bone pseudoprogression, thereby avoiding premature discontinuation of therapy and maximizing the opportunity to benefit from endocrine therapy. Due to the small sample size and retrospective nature of the study, large prospective clinical trials are needed to confirm our findings.
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Affiliation(s)
- Mingxi Lin
- Department of Medical Oncology, Fudan University Shanghai Cancer Center, Shanghai, China
| | - Yizi Jin
- Department of Medical Oncology, Fudan University Shanghai Cancer Center, Shanghai, China
| | - Ziyi Yang
- Department of Nuclear Medicine, Fudan University Shanghai Cancer Center, Xuhui District, Shanghai, China
| | - Xichun Hu
- Department of Medical Oncology, Fudan University Shanghai Cancer Center, No. 270, Dong'an Road, Shanghai 200032, China
| | - Jian Zhang
- Department of Medical Oncology, Fudan University Shanghai Cancer Center, No. 270, Dong'an Road, Shanghai 200032, China
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15
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Hyväkkä A, Virtanen V, Kemppainen J, Grönroos TJ, Minn H, Sundvall M. More Than Meets the Eye: Scientific Rationale behind Molecular Imaging and Therapeutic Targeting of Prostate-Specific Membrane Antigen (PSMA) in Metastatic Prostate Cancer and Beyond. Cancers (Basel) 2021; 13:cancers13092244. [PMID: 34067046 PMCID: PMC8125679 DOI: 10.3390/cancers13092244] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2021] [Revised: 04/30/2021] [Accepted: 05/02/2021] [Indexed: 11/16/2022] Open
Abstract
Simple Summary Prostate-specific membrane antigen (PSMA) is a transmembrane protein that is overexpressed in prostate cancer and correlates with the aggressiveness of the disease. PSMA is a promising target for imaging and therapeutics in prostate cancer patients validated in prospective trials. However, the role of PSMA in prostate cancer progression is poorly understood. In this review, we discuss the biology and scientific rationale behind the use of PSMA and other targets in the detection and theranostics of metastatic prostate cancer. Abstract Prostate cancer is the second most common cancer type in men globally. Although the prognosis for localized prostate cancer is good, no curative treatments are available for metastatic disease. Better diagnostic methods could help target therapies and improve the outcome. Prostate-specific membrane antigen (PSMA) is a transmembrane glycoprotein that is overexpressed on malignant prostate tumor cells and correlates with the aggressiveness of the disease. PSMA is a clinically validated target for positron emission tomography (PET) imaging-based diagnostics in prostate cancer, and during recent years several therapeutics have been developed based on PSMA expression and activity. The expression of PSMA in prostate cancer can be very heterogeneous and some metastases are negative for PSMA. Determinants that dictate clinical responses to PSMA-targeting therapeutics are not well known. Moreover, it is not clear how to manipulate PSMA expression for therapeutic purposes and develop rational treatment combinations. A deeper understanding of the biology behind the use of PSMA would help the development of theranostics with radiolabeled compounds and other PSMA-based therapeutic approaches. Along with PSMA several other targets have also been evaluated or are currently under investigation in preclinical or clinical settings in prostate cancer. Here we critically elaborate the biology and scientific rationale behind the use of PSMA and other targets in the detection and therapeutic targeting of metastatic prostate cancer.
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Affiliation(s)
- Anniina Hyväkkä
- Institute of Biomedicine, Cancer Research Unit, FICAN West Cancer Center Laboratory, University of Turku and Turku University Hospital, FI-20520 Turku, Finland; (A.H.); (V.V.)
| | - Verneri Virtanen
- Institute of Biomedicine, Cancer Research Unit, FICAN West Cancer Center Laboratory, University of Turku and Turku University Hospital, FI-20520 Turku, Finland; (A.H.); (V.V.)
- Turku Doctoral Programme of Molecular Medicine (TuDMM), University of Turku, FI-20520 Turku, Finland
| | - Jukka Kemppainen
- Turku PET Centre, University of Turku, FI-20521 Turku, Finland;
- Department of Clinical Physiology and Nuclear Medicine, Turku University Hospital, FI-20521 Turku, Finland
- Docrates Cancer Center, FI-00180 Helsinki, Finland
| | - Tove J. Grönroos
- Preclinical Imaging Laboratory, Turku PET Centre, University of Turku, FI-20520 Turku, Finland;
| | - Heikki Minn
- Department of Oncology, FICAN West Cancer Center, University of Turku and Turku University Hospital, FI-20521 Turku, Finland;
| | - Maria Sundvall
- Institute of Biomedicine, Cancer Research Unit, FICAN West Cancer Center Laboratory, University of Turku and Turku University Hospital, FI-20520 Turku, Finland; (A.H.); (V.V.)
- Department of Oncology, FICAN West Cancer Center, University of Turku and Turku University Hospital, FI-20521 Turku, Finland;
- Correspondence:
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16
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Whole-Body [ 18F]-Fluoride PET SUV Imaging to Monitor Response to Dasatinib Therapy in Castration-Resistant Prostate Cancer Bone Metastases: Secondary Results from ACRIN 6687. ACTA ACUST UNITED AC 2021; 7:139-153. [PMID: 33923126 PMCID: PMC8167705 DOI: 10.3390/tomography7020013] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Revised: 04/12/2021] [Accepted: 04/22/2021] [Indexed: 11/16/2022]
Abstract
ACRIN 6687, a multi-center clinical trial evaluating differential response of bone metastases to dasatinib in men with metastatic castration-resistant prostate cancer (mCRPC), used [18F]-fluoride (NaF) PET imaging. We extend previous ACRIN 6687 dynamic imaging results by examining NaF whole-body (WB) static SUV PET scans acquired after dynamic scanning. Eighteen patients underwent WB NaF imaging prior to and 12 weeks into dasatinib treatment. Regional VOI analysis of the most NaF avid bone metastases and an automated whole-body method using Quantitative Total Bone Imaging software (QTBI; AIQ Solutions, Inc., Madison, WI, USA) were used. We assessed differences in tumor and normal bone, between pre- and on-treatment dasatinib, and evaluated parameters in association with PFS and OS. Significant decrease in average SUVmax and average SUVpeak occurred in response to dasatinib. Univariate and multivariate analysis showed NaF uptake had significant association with PFS. Pharmacodynamic changes with dasatinib in tumor bone can be identified by WB NaF PET in men with mCRPC. WB PET has the benefit of examining the entire body and is less complicated than single FOV dynamic imaging.
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17
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Rowe SP, Johnson GB, Pomper MG, Gorin MA, Behr SC. Recent updates and developments in PET imaging of prostate cancer. Abdom Radiol (NY) 2020; 45:4063-4072. [PMID: 32417934 DOI: 10.1007/s00261-020-02570-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
A number of positron emission tomography (PET) radiotracers have been developed to improve the sensitivity and specificity of imaging for prostate cancer. These radiotracers include the bone-seeking agent Na18F as well as more tumor-specific compounds such as 11C-choline and 18F-fluciclovine. In this review, we will discuss the advantages and disadvantages of these PET radiotracers for the imaging of men with prostate cancer across a range of clinical contexts. We will also touch upon radiotracers in late clinical development that have not gained regulatory approval, including those targeted against prostate-specific membrane antigen (PSMA) and gastrin-releasing peptide receptor (GRPR).
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Affiliation(s)
- Steven P Rowe
- Division of Nuclear Medicine and Molecular Imaging, The Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, MD, 21287, USA.
- The James Buchanan Brady Urological Institute and Department of Urology, Johns Hopkins University School of Medicine, Baltimore, MD, USA.
| | - Geoffrey B Johnson
- Division of Nuclear Medicine, Department of Radiology, Mayo Clinic, Rochester, MN, USA
| | - Martin G Pomper
- Division of Nuclear Medicine and Molecular Imaging, The Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, MD, 21287, USA
- The James Buchanan Brady Urological Institute and Department of Urology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Michael A Gorin
- Division of Nuclear Medicine and Molecular Imaging, The Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, MD, 21287, USA
- The James Buchanan Brady Urological Institute and Department of Urology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Spencer C Behr
- Department of Radiology and Biomedical Imaging, University of California San Francisco, San Francisco, CA, USA
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18
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Kyriakopoulos CE, Heath EI, Ferrari A, Sperger JM, Singh A, Perlman SB, Roth AR, Perk TG, Modelska K, Porcari A, Duggan W, Lang JM, Jeraj R, Liu G. Exploring Spatial-Temporal Changes in 18F-Sodium Fluoride PET/CT and Circulating Tumor Cells in Metastatic Castration-Resistant Prostate Cancer Treated With Enzalutamide. J Clin Oncol 2020; 38:3662-3671. [PMID: 32897830 DOI: 10.1200/jco.20.00348] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
PURPOSE Intrapatient treatment response heterogeneity is under-recognized. Quantitative total bone imaging (QTBI) using 18F-NaF positron emission tomography/computed tomography (PET/CT) scans is a tool that allows characterization of interlesional treatment response heterogeneity in bone. Understanding spatial-temporal response is important to identify individuals who may benefit from treatment beyond progression. PATIENTS AND METHODS Men with progressive metastatic castration-resistant prostate cancer (mCRPC) with at least two lesions on bone scintigraphy were enrolled and treated with enzalutamide 160 mg daily (ClinicalTrials.gov identifier: NCT02384382). 18F-NaF PET/CT scans were obtained at baseline (PET1), week 13 (PET2), and at the time of prostate-specific antigen (PSA) progression, standard radiographic or clinical progression, or at 2 years without progression (PET3). QTBI was used to determine lesion-level response. The primary end point was the proportion of men with at least one responding bone lesion on PET3 using QTBI. RESULTS Twenty-three men were enrolled. Duration on treatment ranged from 1.4 to 34.1 months. In general, global standardized uptake value (SUV) metrics decreased while on enzalutamide (PET2) and increased at the time of progression (PET3). The most robust predictor of PSA progression was change in SUVhetero (PET1 to PET3; hazard ratio, 3.88; 95% CI, 1.24 to 12.1). Although overall functional disease burden improved during enzalutamide treatment, an increase in total burden (SUVtotal) was seen at the time of progression, as measured by 18F-NaF PET/CT. All (22/22) evaluable men had at least one responding bone lesion at PET3 using QTBI. CONCLUSION We found that the proportion of progressing lesions was low, indicating that a substantial number of lesions appear to continue to benefit from enzalutamide beyond progression. Selective targeting of nonresponding lesions may be a reasonable approach to extend benefit.
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Affiliation(s)
| | - Elisabeth I Heath
- Karmanos Cancer Institute, Wayne State University School of Medicine, Detroit, MI
| | - Anna Ferrari
- Rutgers Cancer Institute of New Jersey, New Brunswick, NJ
| | - Jamie M Sperger
- University of Wisconsin Carbone Cancer Center, University of Wisconsin, Madison, WI
| | - Anupama Singh
- University of Wisconsin Carbone Cancer Center, University of Wisconsin, Madison, WI
| | - Scott B Perlman
- University of Wisconsin Carbone Cancer Center, University of Wisconsin, Madison, WI.,Department of Radiology, University of Wisconsin, Madison, WI
| | - Alison R Roth
- University of Wisconsin Carbone Cancer Center, University of Wisconsin, Madison, WI.,Department of Medical Physics, University of Wisconsin, Madison, WI
| | - Timothy G Perk
- University of Wisconsin Carbone Cancer Center, University of Wisconsin, Madison, WI.,Department of Medical Physics, University of Wisconsin, Madison, WI
| | | | | | | | - Joshua M Lang
- University of Wisconsin Carbone Cancer Center, University of Wisconsin, Madison, WI
| | - Robert Jeraj
- University of Wisconsin Carbone Cancer Center, University of Wisconsin, Madison, WI.,Department of Medical Physics, University of Wisconsin, Madison, WI.,AIQ Solutions, Madison, WI
| | - Glenn Liu
- University of Wisconsin Carbone Cancer Center, University of Wisconsin, Madison, WI.,AIQ Solutions, Madison, WI
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19
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Froelich JW, Salavati A. Artificial Intelligence in PET/CT Is about to Make Whole-Body Tumor Burden Measurements a Clinical Reality. Radiology 2020; 294:453-454. [DOI: 10.1148/radiol.2019192425] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Jerry W. Froelich
- From the Department of Radiology, University of Minnesota, 420 Delaware St SE, Mayo Bldg, MMC 292, Minneapolis, MN 55455
| | - Ali Salavati
- From the Department of Radiology, University of Minnesota, 420 Delaware St SE, Mayo Bldg, MMC 292, Minneapolis, MN 55455
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20
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Armstrong AJ, Al-Adhami M, Lin P, Parli T, Sugg J, Steinberg J, Tombal B, Sternberg CN, de Bono J, Scher HI, Beer TM. Association Between New Unconfirmed Bone Lesions and Outcomes in Men With Metastatic Castration-Resistant Prostate Cancer Treated With Enzalutamide: Secondary Analysis of the PREVAIL and AFFIRM Randomized Clinical Trials. JAMA Oncol 2020; 6:217-225. [PMID: 31830211 PMCID: PMC6990871 DOI: 10.1001/jamaoncol.2019.4636] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Importance For men with metastatic castration-resistant prostate cancer (mCRPC) whose condition is responding to enzalutamide, new unconfirmed bone lesions detected at posttreatment scinitigraphy may reflect an osteoblastic reaction that represents healing, known as pseudoprogression, which can lead to premature discontinuation of therapy. Objective To determine the association between new unconfirmed lesions detected on a follow-up bone scintigram (bone scan) and outcomes in enzalutamide-treated men with mCRPC. Design, Setting, and Participants This post hoc, retrospective secondary analysis of 1672 enzalutamide-treated men from 2 phase 3, randomized mCRPC studies (PREVAIL and AFFIRM) before or after treatment with docetaxel was conducted from April 12, 2018, to July 25, 2019. Participants were men from the enzalutamide groups of the 2 studies with a decrease in prostate-specific antigen level at any time or with stable disease or soft-tissue disease responding to treatment based onradiologic findings. Intervention Enzalutamide, 160 mg once daily. Main Outcomes and Measures The clinical significance of new lesions detected on the first (early) or second (late) posttreatment bone scan, without an unfavorable change in prostate-specific antigen level or soft-tissue progression, was investigated. Associations of new unconfirmed lesions with radiographic progression-free survival, overall survival, decrease in prostate-specific antigen level, objective response in soft tissue, and quality of life were evaluated. Results Among the 643 men (median age, 72 years [range, 43-93 years]) in PREVAIL, early and late unconfirmed lesions were observed in 177 men (27.5%) with stable disease or disease responding to enzalutamide. Among the 404 men (median age, 70 years [range, 41-88 years]) in AFFIRM, early and late unconfirmed lesions were observed in 73 men (18.1%) with stable disease or disease responding to enzalutamide. In PREVAIL, men with new unconfirmed lesions had median radiographic progression-free survival (hazard ratio [HR], 1.37 [95% CI, 0.81-2.30]; P = .23) and median overall survival (HR, 1.25 [95% CI, 0.85-1.83]) in the chemotherapy-naive setting similar to men those of men without such new lesions. In AFFIRM, the median overall survival (HR, 1.94 [95% CI, 1.10-3.44]) was reduced among men with unconfirmed bone lesions, but the median radiographic progression-free survival was not reduced (HR, 1.21 [95% CI, 0.83-1.75]; P = .32). Quality of life over time was similar regardless of the presence of new unconfirmed lesions detected on a follow-up bone scan in either setting. Conclusions and Relevance These results suggest that new unconfirmed lesions detected on follow-up bone scans may represent pseudoprogression in men with mCRPC and are indicative of a favorable treatment response to enzalutamide. The detection of new unconfirmed bone lesions in men with mCRPC that responded to treatment with enzalutamide after docetaxel appears to be associated with worse overall survival and may represent true progression, thus highlighting the need for improved functional bone metastasis imaging. Trial Registration ClinicalTrials.gov Identifiers: NCT01212991 and NCT00974311.
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Affiliation(s)
- Andrew J Armstrong
- Division of Medical Oncology and Urology, Duke Cancer Institute Center for Prostate and Urologic Cancers, Duke University, Durham, North Carolina
| | | | - Ping Lin
- Biostatistics, Pfizer Inc, San Francisco, California
| | - Teresa Parli
- Clinical Development, Pfizer Inc, San Francisco, California
| | - Jennifer Sugg
- Biostatistics, Astellas Pharma Inc, Northbrook, Illinois
| | - Joyce Steinberg
- Clinical Development, Astellas Pharma Inc, Northbrook, Illinois
| | - Bertrand Tombal
- Division of Urology, Cliniques Universitaires Saint-Luc, Brussels, Belgium
| | - Cora N Sternberg
- Medical Oncology, Englander Institute for Precision Medicine, Weill Cornell Medicine, New York, New York
| | - Johann de Bono
- Division of Clinical Studies, The Institute of Cancer Research, The Royal Marsden National Health Service Foundation Trust, London, United Kingdom
| | - Howard I Scher
- Genitourinary Oncology Service, Memorial Sloan Kettering Cancer Center, Weill Cornell Medical College, New York, New York
| | - Tomasz M Beer
- Division of Hematology/Medical Oncology, OHSU Knight Cancer Institute, Oregon Health & Science University, Portland
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21
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Abstract
The continuous development of SPECT over the past 50 years has led to improved image quality and increased diagnostic confidence. The most influential developments include the realization of hybrid SPECT/CT devices, as well as the implementation of attenuation correction and iterative image reconstruction techniques. These developments have led to a preference for SPECT/CT devices over SPECT-only systems and to the widespread adoption of the former, strengthening the role of SPECT/CT as the workhorse of Nuclear Medicine imaging. New trends in the ongoing development of SPECT/CT are diverse. For example, whole-body SPECT/CT images, consisting of acquisitions from multiple consecutive bed positions in the manner of PET/CT, are increasingly performed. Additionally, in recent years, some interesting approaches in detector technology have found their way into commercial products. For example, some SPECT cameras dedicated to specific organs employ semiconductor detectors made of cadmium telluride or cadmium zinc telluride, which have been shown to increase the obtainable image quality by offering a higher sensitivity and energy resolution. However, the advent of quantitative SPECT/CT which, like PET, can quantify the amount of tracer in terms of Bq/mL or as a standardized uptake value could be regarded as most important development. It is a major innovation that will lead to increased diagnostic accuracy and confidence, especially in longitudinal studies and in the monitoring of treatment response. The current work comprises two main aspects. At first, physical and technical fundamentals of SPECT image formation are described and necessary prerequisites of quantitative SPECT/CT are reviewed. Additionally, the typically achievable quantitative accuracy based on reports from the literature is given. Second, an extensive list of studies reporting on clinical applications of quantitative SPECT/CT is provided and reviewed.
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Affiliation(s)
- Philipp Ritt
- Clinic of Nuclear Medicine, University Hospital Erlangen, Ulmenweg 18, 91054, Erlangen, Germany.
| | - Torsten Kuwert
- Clinic of Nuclear Medicine, University Hospital Erlangen, Ulmenweg 18, 91054, Erlangen, Germany
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22
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Comparison of PSMA-PET/CT, choline-PET/CT, NaF-PET/CT, MRI, and bone scintigraphy in the diagnosis of bone metastases in patients with prostate cancer: a systematic review and meta-analysis. Skeletal Radiol 2019; 48:1915-1924. [PMID: 31127357 DOI: 10.1007/s00256-019-03230-z] [Citation(s) in RCA: 84] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/18/2019] [Revised: 04/24/2019] [Accepted: 04/26/2019] [Indexed: 02/02/2023]
Abstract
OBJECTIVE A systematic review and meta-analysis to compare the diagnostic performance of prostate-specific membrane antigen (PSMA)-PET/CT, choline-PET/CT, Sodium Fluoride (NaF) PET/CT, MRI, and bone scintigraphy (BS) in detecting bone metastases in patients with prostate cancer. METHODS We searched PubMed and Embase for articles published between January 1990 and September 2018. Two evaluators independently extracted the sensitivity, specificity, the numbers of true and false positives, and true and false negatives. We calculated the pooled sensitivity, specificity, and 95% confidence intervals (CI) for each method. We calculated the tests' diagnostic odds ratios (DOR); drew the summary receiver operating characteristic (SROC) curves; and obtained the areas under the curves (AUC), Q* values, and 95% CIs. RESULTS The per-patient pooled sensitivities of PSMA-PET/CT, choline-PET/CT, NaF-PET/CT, MRI, and BS were 0.97, 0.87, 0.96, 0.91, and 0.86, respectively. The pooled specificities were 1.00, 0.99, 0.97, 0.96, and 0.95, respectively. The pooled DOR values were 504.16, 673.67, 242.63, and 114.44, respectively. The AUC were 1.00, 0.99, 0.99, 0.98, and 0.95, respectively. The per-lesion pooled sensitivities of PSMA-PET/CT, choline-PET/CT, NaF-PET/CT, MRI, and bone imaging were 0.88, 0.80, 0.97, 0.81 and 0.68, respectively. CONCLUSIONS According to the meta-analysis, PSMA-PET/CT had the highest per-patient sensitivity and specificity in detecting bone metastases with prostate cancer. The sensitivities of NaF-PET/CT and MRI were better than those for choline-PET/CT and BS. The specificity of PSMA-PET/CT was significantly better than BS. Others were similar. For per-lesion, NaF-PET/CT had the highest sensitivity, PSMA-PET/CT had higher sensitivity than choline-PET/CT and MRI, and BS had the lowest sensitivity.
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23
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McNeel DG, Eickhoff JC, Johnson LE, Roth AR, Perk TG, Fong L, Antonarakis ES, Wargowski E, Jeraj R, Liu G. Phase II Trial of a DNA Vaccine Encoding Prostatic Acid Phosphatase (pTVG-HP [MVI-816]) in Patients With Progressive, Nonmetastatic, Castration-Sensitive Prostate Cancer. J Clin Oncol 2019; 37:3507-3517. [PMID: 31644357 DOI: 10.1200/jco.19.01701] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
PURPOSE We previously reported the safety and immunologic effects of a DNA vaccine (pTVG-HP [MVI-816]) encoding prostatic acid phosphatase (PAP) in patients with recurrent, nonmetastatic prostate cancer. The current trial evaluated the effects of this vaccine on metastatic progression. PATIENTS AND METHODS Ninety-nine patients with castration-sensitive prostate cancer and prostate-specific antigen (PSA) doubling time (DT) of less than 12 months were randomly assigned to treatment with either pTVG-HP co-administered intradermally with 200 μg granulocyte-macrophage colony-stimulating factor (GM-CSF) adjuvant or 200 μg GM-CSF alone six times at 14-day intervals and then quarterly for 2 years. The primary end point was 2-year metastasis-free survival (MFS). Secondary and exploratory end points were median MFS, changes in PSA DT, immunologic effects, and changes in quantitative 18F-sodium fluoride (NaF) positron emission tomography/computed tomography (PET/CT) imaging. RESULTS Two-year MFS was not different between study arms (41.8% vaccine v 42.3%; P = .97). Changes in PSA DT and median MFS were not different between study arms (18.9 v 18.3 months; hazard ratio [HR], 1.6; P = .13). Preplanned subset analysis identified longer MFS in vaccine-treated patients with rapid (< 3 months) pretreatment PSA DT (12.0 v 6.1 months; n = 21; HR, 4.4; P = .03). PAP-specific T cells were detected in both cohorts, including multifunctional PAP-specific T-helper 1-biased T cells. Changes in total activity (total standardized uptake value) on 18F-NaF PET/CT from months 3 to 6 increased 50% in patients treated with GM-CSF alone and decreased 23% in patients treated with pTVG-HP (n = 31; P = .07). CONCLUSION pTVG-HP treatment did not demonstrate an overall increase in 2-year MFS in patients with castration-sensitive prostate cancer, with the possible exception of a subgroup with rapidly progressive disease. Prespecified 18F-NaF PET/CT imaging conducted in a subset of patients suggests that vaccination had detectable effects on micrometastatic bone disease. Additional trials using pTVG-HP in combination with PD-1 blockade are under way.
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Affiliation(s)
| | | | | | | | | | - Lawrence Fong
- University of California, San Francisco, San Francisco, CA
| | | | | | | | - Glenn Liu
- University of Wisconsin, Madison, WI
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De Schepper S, Ritt P, Van den Wyngaert T, Kuwert T. Quantitative radionuclide imaging of bone metastases. THE QUARTERLY JOURNAL OF NUCLEAR MEDICINE AND MOLECULAR IMAGING : OFFICIAL PUBLICATION OF THE ITALIAN ASSOCIATION OF NUCLEAR MEDICINE (AIMN) [AND] THE INTERNATIONAL ASSOCIATION OF RADIOPHARMACOLOGY (IAR), [AND] SECTION OF THE SOCIETY OF RADIOPHARMACEUTICAL CHEMISTRY AND BIOLOGY 2019; 63:129-135. [DOI: 10.23736/s1824-4785.19.03204-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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25
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Papadakis GZ, Manikis GC, Karantanas AH, Florenzano P, Bagci U, Marias K, Collins MT, Boyce AM. 18 F-NaF PET/CT IMAGING IN FIBROUS DYSPLASIA OF BONE. J Bone Miner Res 2019; 34:1619-1631. [PMID: 31116487 PMCID: PMC6744316 DOI: 10.1002/jbmr.3738] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/02/2018] [Revised: 03/20/2019] [Accepted: 03/27/2019] [Indexed: 12/13/2022]
Abstract
Fibrous dysplasia (FD) is a mosaic skeletal disorder resulting in fractures, deformity, and functional impairment. Clinical evaluation has been limited by a lack of surrogate endpoints capable of quantitating disease activity. The purpose of this study was to investigate the utility of 18 F-NaF PET/CT imaging in quantifying disease activity in patients with FD. Fifteen consecutively evaluated subjects underwent whole-body 18 F-NaF PET/CT scans, and FD burden was assessed by quantifying FD-related 18 F-NaF activity. 18 F-NaF PET/CT parameters obtained included (i) SUVmax (standardized uptake value [SUV] of the FD lesion with the highest uptake); (ii) SUVmean (average SUV of all 18 F-NaF-positive FD lesions); (iii) total volume of all 18 F-NaF-positive FD lesions (TV); and (iv) total FD lesion activity determined as the product of TV multiplied by SUVmean (TA = TV × SUVmean ) (TA). Skeletal outcomes, functional outcomes, and bone turnover markers were correlated with 18 F-NaF PET/CT parameters. TV and TA of extracranial FD lesions correlated strongly with skeletal outcomes including fractures and surgeries (p values ≤ 0.003). Subjects with impaired ambulation and scoliosis had significantly higher TV and TA values (P < 0.05), obtained from extracranial and spinal lesions, respectively. Craniofacial surgeries correlated with TV and TA of skull FD lesions (P < 0.001). Bone turnover markers, including alkaline phosphatase, N-telopeptides, and osteocalcin, were strongly correlated with TV and TA (P < 0.05) extracted from FD lesions in the entire skeleton. No associations were identified with SUVmax or SUVmean . Bone pain and age did not correlate with 18 F-NaF PET/CT parameters. FD burden evaluated by 18 F-NaF-PET/CT facilitates accurate assessment of FD activity, and correlates quantitatively with clinically-relevant skeletal outcomes. © 2019 American Society for Bone and Mineral Research.
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Affiliation(s)
- Georgios Z Papadakis
- Foundation for Research and Technology (FORTH), Institute of Computer Science (ICS), Heraklion, Greece.,Skeletal Disorders and Mineral Homeostasis Section, National Institute of Dental and Craniofacial Research (NIDCR), National Institutes of Health, Bethesda, MD, USA.,Department of Radiology, Medical School, University of Crete, Heraklion, Greece
| | - Georgios C Manikis
- Foundation for Research and Technology (FORTH), Institute of Computer Science (ICS), Heraklion, Greece
| | - Apostolos H Karantanas
- Foundation for Research and Technology (FORTH), Institute of Computer Science (ICS), Heraklion, Greece.,Department of Radiology, Medical School, University of Crete, Heraklion, Greece
| | - Pablo Florenzano
- Skeletal Disorders and Mineral Homeostasis Section, National Institute of Dental and Craniofacial Research (NIDCR), National Institutes of Health, Bethesda, MD, USA.,Endocrinology Department, Facultad de Medicina, Pontificia Universidad Catolica de Chile, Santiago, Chile
| | - Ulas Bagci
- Center for Research in Computer Vision, University of Central Florida, Orlando, FL, USA
| | - Kostas Marias
- Foundation for Research and Technology (FORTH), Institute of Computer Science (ICS), Heraklion, Greece
| | - Michael T Collins
- Skeletal Disorders and Mineral Homeostasis Section, National Institute of Dental and Craniofacial Research (NIDCR), National Institutes of Health, Bethesda, MD, USA
| | - Alison M Boyce
- Skeletal Disorders and Mineral Homeostasis Section, National Institute of Dental and Craniofacial Research (NIDCR), National Institutes of Health, Bethesda, MD, USA
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26
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Velez EM, Desai B, Jadvar H. Treatment Response Assessment of Skeletal Metastases in Prostate Cancer with 18F-NaF PET/CT. Nucl Med Mol Imaging 2019; 53:247-252. [PMID: 31456857 PMCID: PMC6694323 DOI: 10.1007/s13139-019-00601-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2019] [Revised: 05/24/2019] [Accepted: 06/18/2019] [Indexed: 01/08/2023] Open
Abstract
PURPOSE To determine the utility of 18F-sodium fluoride positron emission tomography-computed tomography (18F-NaF PET/CT) in the imaging assessment of therapy response in men with osseous-only metastatic prostate cancer. METHODS In this Institutional Review Board-approved single institution retrospective investigation, we evaluated 21 18F-NaF PET/CT scans performed in 14 patients with osseous metastatic disease from prostate cancer and no evidence of locally recurrent or soft-tissue metastatic disease who received chemohormonal therapy. Imaging-based qualitative and semi-quantitative parameters were defined and compared with changes in serum PSA level. RESULTS Qualitative and semi-quantitative image-based assessments demonstrated > 80% concordance with good correlation (SUVmax κ = 0.71, SUVavg κ = 0.62, SUVsum κ = 0.62). Moderate correlation (κ = 0.43) was found between SUVmax and PSA-based treatment response assessments. There was no statistically significant correlation between PSA-based disease progression and semi-quantitative parameters. Qualitative imaging assessment was moderately correlated (κ = 0.52) with PSA in distinguishing responders and non-responders. CONCLUSION 18F-NaF PET/CT is complementary to biochemical monitoring in patients with bone-only metastases from prostate cancer which can be helpful in subsequent treatment management decisions.
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Affiliation(s)
- Erik M. Velez
- Division of Nuclear Medicine, Department of Radiology, Keck School of Medicine, University of Southern California, 2250 Alcazar St., CSC 102, Los Angeles, CA 90033 USA
| | - Bhushan Desai
- Division of Nuclear Medicine, Department of Radiology, Keck School of Medicine, University of Southern California, 2250 Alcazar St., CSC 102, Los Angeles, CA 90033 USA
| | - Hossein Jadvar
- Division of Nuclear Medicine, Department of Radiology, Keck School of Medicine, University of Southern California, 2250 Alcazar St., CSC 102, Los Angeles, CA 90033 USA
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27
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Ware RE, Williams S, Hicks RJ. Molecular Imaging of Recurrent and Metastatic Prostate Cancer. Semin Nucl Med 2019; 49:280-293. [DOI: 10.1053/j.semnuclmed.2019.02.005] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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28
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Perez-Lopez R, Tunariu N, Padhani AR, Oyen WJG, Fanti S, Vargas HA, Omlin A, Morris MJ, de Bono J, Koh DM. Imaging Diagnosis and Follow-up of Advanced Prostate Cancer: Clinical Perspectives and State of the Art. Radiology 2019; 292:273-286. [PMID: 31237493 DOI: 10.1148/radiol.2019181931] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
The management of advanced prostate cancer has changed substantially with the availability of multiple effective novel treatments, which has led to improved disease survival. In the era of personalized cancer treatments, more precise imaging may help physicians deliver better care. More accurate local staging and earlier detection of metastatic disease, accurate identification of oligometastatic disease, and optimal assessment of treatment response are areas where modern imaging is rapidly evolving and expanding. Next-generation imaging modalities, including whole-body MRI and molecular imaging with combined PET and CT and combined PET and MRI using novel radiopharmaceuticals, create new opportunities for imaging to support and refine management pathways in patients with advanced prostate cancer. This article demonstrates the potential and challenges of applying next-generation imaging to deliver the clinical promise of treatment breakthroughs.
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Affiliation(s)
- Raquel Perez-Lopez
- From the Radiomics Group, Vall D'Hebron Institute of Oncology, Barcelona, Spain (R.P.L.); Departments of Radiology (N.T., D.M.K.) and Nuclear Medicine (W.J.G.O.), Royal Marsden NHS Foundation Trust, Downs Road, Sutton SM2 5PT, England; Paul Strickland Scanner Centre, Mount Vernon Hospital, Northwood, England (A.R.P.); Divisions of Radiotherapy and Imaging (W.J.G.O., D.M.K.) and Clinical Studies & Prostate Cancer Targeted Therapy Group (J.d.B.), Institute of Cancer Research, Sutton, England; Departments of Radiology (S.F.) and Genitourinary Oncology Service and Medicine (M.J.M.), Memorial Sloan-Kettering Cancer Center, New York, NY; Department of Oncology and Haematology, Cantonal Hospital St. Gallen, St. Gallen, Switzerland (H.A.V., A.O.); Department of Medical Oncology, Inselspital, Bern University Hospital, University of Bern, Switzerland (H.A.V., A.O.); and Department of Medicine, Weill Cornell Medicine, New York, NY (M.J.M.)
| | - Nina Tunariu
- From the Radiomics Group, Vall D'Hebron Institute of Oncology, Barcelona, Spain (R.P.L.); Departments of Radiology (N.T., D.M.K.) and Nuclear Medicine (W.J.G.O.), Royal Marsden NHS Foundation Trust, Downs Road, Sutton SM2 5PT, England; Paul Strickland Scanner Centre, Mount Vernon Hospital, Northwood, England (A.R.P.); Divisions of Radiotherapy and Imaging (W.J.G.O., D.M.K.) and Clinical Studies & Prostate Cancer Targeted Therapy Group (J.d.B.), Institute of Cancer Research, Sutton, England; Departments of Radiology (S.F.) and Genitourinary Oncology Service and Medicine (M.J.M.), Memorial Sloan-Kettering Cancer Center, New York, NY; Department of Oncology and Haematology, Cantonal Hospital St. Gallen, St. Gallen, Switzerland (H.A.V., A.O.); Department of Medical Oncology, Inselspital, Bern University Hospital, University of Bern, Switzerland (H.A.V., A.O.); and Department of Medicine, Weill Cornell Medicine, New York, NY (M.J.M.)
| | - Anwar R Padhani
- From the Radiomics Group, Vall D'Hebron Institute of Oncology, Barcelona, Spain (R.P.L.); Departments of Radiology (N.T., D.M.K.) and Nuclear Medicine (W.J.G.O.), Royal Marsden NHS Foundation Trust, Downs Road, Sutton SM2 5PT, England; Paul Strickland Scanner Centre, Mount Vernon Hospital, Northwood, England (A.R.P.); Divisions of Radiotherapy and Imaging (W.J.G.O., D.M.K.) and Clinical Studies & Prostate Cancer Targeted Therapy Group (J.d.B.), Institute of Cancer Research, Sutton, England; Departments of Radiology (S.F.) and Genitourinary Oncology Service and Medicine (M.J.M.), Memorial Sloan-Kettering Cancer Center, New York, NY; Department of Oncology and Haematology, Cantonal Hospital St. Gallen, St. Gallen, Switzerland (H.A.V., A.O.); Department of Medical Oncology, Inselspital, Bern University Hospital, University of Bern, Switzerland (H.A.V., A.O.); and Department of Medicine, Weill Cornell Medicine, New York, NY (M.J.M.)
| | - Wim J G Oyen
- From the Radiomics Group, Vall D'Hebron Institute of Oncology, Barcelona, Spain (R.P.L.); Departments of Radiology (N.T., D.M.K.) and Nuclear Medicine (W.J.G.O.), Royal Marsden NHS Foundation Trust, Downs Road, Sutton SM2 5PT, England; Paul Strickland Scanner Centre, Mount Vernon Hospital, Northwood, England (A.R.P.); Divisions of Radiotherapy and Imaging (W.J.G.O., D.M.K.) and Clinical Studies & Prostate Cancer Targeted Therapy Group (J.d.B.), Institute of Cancer Research, Sutton, England; Departments of Radiology (S.F.) and Genitourinary Oncology Service and Medicine (M.J.M.), Memorial Sloan-Kettering Cancer Center, New York, NY; Department of Oncology and Haematology, Cantonal Hospital St. Gallen, St. Gallen, Switzerland (H.A.V., A.O.); Department of Medical Oncology, Inselspital, Bern University Hospital, University of Bern, Switzerland (H.A.V., A.O.); and Department of Medicine, Weill Cornell Medicine, New York, NY (M.J.M.)
| | - Stefano Fanti
- From the Radiomics Group, Vall D'Hebron Institute of Oncology, Barcelona, Spain (R.P.L.); Departments of Radiology (N.T., D.M.K.) and Nuclear Medicine (W.J.G.O.), Royal Marsden NHS Foundation Trust, Downs Road, Sutton SM2 5PT, England; Paul Strickland Scanner Centre, Mount Vernon Hospital, Northwood, England (A.R.P.); Divisions of Radiotherapy and Imaging (W.J.G.O., D.M.K.) and Clinical Studies & Prostate Cancer Targeted Therapy Group (J.d.B.), Institute of Cancer Research, Sutton, England; Departments of Radiology (S.F.) and Genitourinary Oncology Service and Medicine (M.J.M.), Memorial Sloan-Kettering Cancer Center, New York, NY; Department of Oncology and Haematology, Cantonal Hospital St. Gallen, St. Gallen, Switzerland (H.A.V., A.O.); Department of Medical Oncology, Inselspital, Bern University Hospital, University of Bern, Switzerland (H.A.V., A.O.); and Department of Medicine, Weill Cornell Medicine, New York, NY (M.J.M.)
| | - Hebert Alberto Vargas
- From the Radiomics Group, Vall D'Hebron Institute of Oncology, Barcelona, Spain (R.P.L.); Departments of Radiology (N.T., D.M.K.) and Nuclear Medicine (W.J.G.O.), Royal Marsden NHS Foundation Trust, Downs Road, Sutton SM2 5PT, England; Paul Strickland Scanner Centre, Mount Vernon Hospital, Northwood, England (A.R.P.); Divisions of Radiotherapy and Imaging (W.J.G.O., D.M.K.) and Clinical Studies & Prostate Cancer Targeted Therapy Group (J.d.B.), Institute of Cancer Research, Sutton, England; Departments of Radiology (S.F.) and Genitourinary Oncology Service and Medicine (M.J.M.), Memorial Sloan-Kettering Cancer Center, New York, NY; Department of Oncology and Haematology, Cantonal Hospital St. Gallen, St. Gallen, Switzerland (H.A.V., A.O.); Department of Medical Oncology, Inselspital, Bern University Hospital, University of Bern, Switzerland (H.A.V., A.O.); and Department of Medicine, Weill Cornell Medicine, New York, NY (M.J.M.)
| | - Aurelius Omlin
- From the Radiomics Group, Vall D'Hebron Institute of Oncology, Barcelona, Spain (R.P.L.); Departments of Radiology (N.T., D.M.K.) and Nuclear Medicine (W.J.G.O.), Royal Marsden NHS Foundation Trust, Downs Road, Sutton SM2 5PT, England; Paul Strickland Scanner Centre, Mount Vernon Hospital, Northwood, England (A.R.P.); Divisions of Radiotherapy and Imaging (W.J.G.O., D.M.K.) and Clinical Studies & Prostate Cancer Targeted Therapy Group (J.d.B.), Institute of Cancer Research, Sutton, England; Departments of Radiology (S.F.) and Genitourinary Oncology Service and Medicine (M.J.M.), Memorial Sloan-Kettering Cancer Center, New York, NY; Department of Oncology and Haematology, Cantonal Hospital St. Gallen, St. Gallen, Switzerland (H.A.V., A.O.); Department of Medical Oncology, Inselspital, Bern University Hospital, University of Bern, Switzerland (H.A.V., A.O.); and Department of Medicine, Weill Cornell Medicine, New York, NY (M.J.M.)
| | - Michael J Morris
- From the Radiomics Group, Vall D'Hebron Institute of Oncology, Barcelona, Spain (R.P.L.); Departments of Radiology (N.T., D.M.K.) and Nuclear Medicine (W.J.G.O.), Royal Marsden NHS Foundation Trust, Downs Road, Sutton SM2 5PT, England; Paul Strickland Scanner Centre, Mount Vernon Hospital, Northwood, England (A.R.P.); Divisions of Radiotherapy and Imaging (W.J.G.O., D.M.K.) and Clinical Studies & Prostate Cancer Targeted Therapy Group (J.d.B.), Institute of Cancer Research, Sutton, England; Departments of Radiology (S.F.) and Genitourinary Oncology Service and Medicine (M.J.M.), Memorial Sloan-Kettering Cancer Center, New York, NY; Department of Oncology and Haematology, Cantonal Hospital St. Gallen, St. Gallen, Switzerland (H.A.V., A.O.); Department of Medical Oncology, Inselspital, Bern University Hospital, University of Bern, Switzerland (H.A.V., A.O.); and Department of Medicine, Weill Cornell Medicine, New York, NY (M.J.M.)
| | - Johann de Bono
- From the Radiomics Group, Vall D'Hebron Institute of Oncology, Barcelona, Spain (R.P.L.); Departments of Radiology (N.T., D.M.K.) and Nuclear Medicine (W.J.G.O.), Royal Marsden NHS Foundation Trust, Downs Road, Sutton SM2 5PT, England; Paul Strickland Scanner Centre, Mount Vernon Hospital, Northwood, England (A.R.P.); Divisions of Radiotherapy and Imaging (W.J.G.O., D.M.K.) and Clinical Studies & Prostate Cancer Targeted Therapy Group (J.d.B.), Institute of Cancer Research, Sutton, England; Departments of Radiology (S.F.) and Genitourinary Oncology Service and Medicine (M.J.M.), Memorial Sloan-Kettering Cancer Center, New York, NY; Department of Oncology and Haematology, Cantonal Hospital St. Gallen, St. Gallen, Switzerland (H.A.V., A.O.); Department of Medical Oncology, Inselspital, Bern University Hospital, University of Bern, Switzerland (H.A.V., A.O.); and Department of Medicine, Weill Cornell Medicine, New York, NY (M.J.M.)
| | - Dow-Mu Koh
- From the Radiomics Group, Vall D'Hebron Institute of Oncology, Barcelona, Spain (R.P.L.); Departments of Radiology (N.T., D.M.K.) and Nuclear Medicine (W.J.G.O.), Royal Marsden NHS Foundation Trust, Downs Road, Sutton SM2 5PT, England; Paul Strickland Scanner Centre, Mount Vernon Hospital, Northwood, England (A.R.P.); Divisions of Radiotherapy and Imaging (W.J.G.O., D.M.K.) and Clinical Studies & Prostate Cancer Targeted Therapy Group (J.d.B.), Institute of Cancer Research, Sutton, England; Departments of Radiology (S.F.) and Genitourinary Oncology Service and Medicine (M.J.M.), Memorial Sloan-Kettering Cancer Center, New York, NY; Department of Oncology and Haematology, Cantonal Hospital St. Gallen, St. Gallen, Switzerland (H.A.V., A.O.); Department of Medical Oncology, Inselspital, Bern University Hospital, University of Bern, Switzerland (H.A.V., A.O.); and Department of Medicine, Weill Cornell Medicine, New York, NY (M.J.M.)
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Roth AR, Harmon SA, Perk TG, Eickhoff J, Choyke PL, Kurdziel KA, Dahut WL, Apolo AB, Morris MJ, Perlman SB, Liu G, Jeraj R. Impact of Anatomic Location of Bone Metastases on Prognosis in Metastatic Castration-Resistant Prostate Cancer. Clin Genitourin Cancer 2019; 17:306-314. [PMID: 31221545 DOI: 10.1016/j.clgc.2019.05.013] [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: 01/30/2019] [Revised: 04/12/2019] [Accepted: 05/21/2019] [Indexed: 10/26/2022]
Abstract
BACKGROUND Whole-body assessments of 18F-NaF positron emission tomography (PET)/computed tomography (CT) provide promising quantitative imaging biomarkers of metastatic castration-resistant prostate cancer (mCRPC). This study investigated whether the distribution of metastases across anatomic regions is prognostic of progression-free survival. PATIENTS AND METHODS Fifty-four mCRPC patients with osseous metastases received baseline NaF PET/CT. Patients received chemotherapy (n = 16) or androgen receptor pathway inhibitors (n = 38). Semiautomated analysis using Quantitative Total Bone Imaging software extracted imaging metrics for the whole, axial, and appendicular skeleton as well as 11 skeletal regions. Five PET metrics were extracted for each region: number of lesions (NL), standardized maximum uptake value (SUVmax), average uptake (SUVmean), sum of uptake (SUVtotal), and diseased fraction of the skeleton (volume fraction). Progression included that discovered by clinical, biochemical, or radiographic means. Univariate and multivariate Cox proportional hazard regression analyses were performed between imaging metrics and progression-free survival, and were assessed according to their hazard ratios (HR) and concordance (C)-indices. RESULTS The strongest univariate models of progression-free survival were pelvic NL and SUVmax with HR = 1.80 (NL: false discovery rate adjusted P = .001, SUVmax: adjusted P = .001). Three other region-specific metrics (axial NL: HR = 1.59, adjusted P = .02, axial SUVmax: HR = 1.61, adjusted P = .02, and skull SUVmax: HR = 1.58, adjusted P = .04) were found to be stronger prognosticators relative to their whole-body counterparts. Multivariate model including region-specific metrics (C-index = 0.727) outperformed that of whole-body metrics (C-index = 0.705). The best performance was obtained when region-specific and whole-body metrics were included (C-index = 0.742). CONCLUSION Quantitative characterization of metastatic spread by anatomic location on NaF PET/CT enhances potential prognostication. Further study is warranted to optimize the prognostic and predictive value of NaF PET/CT in mCRPC patients.
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Affiliation(s)
- Alison R Roth
- Department of Medical Physics, University of Wisconsin, Madison, WI.
| | | | - Timothy G Perk
- Department of Medical Physics, University of Wisconsin, Madison, WI
| | - Jens Eickhoff
- Department of Biostatistics and Medical Informatics, University of Wisconsin, Madison, WI
| | - Peter L Choyke
- Molecular Imaging Branch, National Cancer Institute, Bethesda, MD
| | - Karen A Kurdziel
- Molecular Imaging Branch, National Cancer Institute, Bethesda, MD
| | - William L Dahut
- Genitourinary Malignancies Branch, National Cancer Institute, Bethesda, MD
| | - Andrea B Apolo
- Genitourinary Malignancies Branch, National Cancer Institute, Bethesda, MD
| | | | | | - Glenn Liu
- Department of Medical Physics, University of Wisconsin, Madison, WI; University of Wisconsin Carbone Cancer Center, Madison, WI
| | - Robert Jeraj
- Department of Medical Physics, University of Wisconsin, Madison, WI; University of Wisconsin Carbone Cancer Center, Madison, WI
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Mota JM, Armstrong AJ, Larson SM, Fox JJ, Morris MJ. Measuring the unmeasurable: automated bone scan index as a quantitative endpoint in prostate cancer clinical trials. Prostate Cancer Prostatic Dis 2019; 22:522-530. [PMID: 31036925 DOI: 10.1038/s41391-019-0151-4] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2019] [Revised: 03/11/2019] [Accepted: 03/24/2019] [Indexed: 01/06/2023]
Abstract
BACKGROUND Up to 90% of men with metastatic castration-resistant prostate cancer (mCRPC) will have a distribution of disease that includes bone metastases demonstrated on a Technetium-99m (99mTc-MDP) bone scan. The Prostate Cancer Working Group 2 and 3 Consensus Criteria standardized the criteria for assessing progression based on the development of new lesions. These criteria have been recognized by regulatory authorities for drug approval. The bone scan index (BSI) is a method to quantitatively measure the burden of bony disease, and can assess both disease progression and regression. The automated BSI (aBSI) is a method of computer analysis to assess BSI, and is being qualified as a clinical trials endpoint. METHODS Manual searching was used to identify the literature on BSI and aBSI. We summarize the most relevant aspects of the retrospective and prospective studies evaluating aBSI measurements, and provide a critical discussion on the potential advantages and caveats of aBSI. RESULTS The development of neural artificial networks (EXINI boneBSI) to automatically determine the BSI reduces the turnaround time for assessing BSI with high reproducibility and accuracy. Several studies showed that the concordance between aBSI and BSI, as well as the interobserver concordance of aBSI, was >0.95. In a phase 3 assessment of aBSI, a doubling value increased the risk of death in 20%, pre-treatment aBSI values independently correlated with overall survival (OS) and time to symptomatic progression. Retrospective studies suggest that a decrease in aBSI after treatment may correlate with higher survival when compared with increasing aBSI. CONCLUSIONS aBSI provides a quantitative measurement that is feasible, reproducible, and in analyses to date correlates with OS and symptomatic progression. These findings support the aBSI to risk-stratify men with mCRPC for clinical trial enrollment. Future studies quantifying aBSI change over time as an intermediate endpoint for evaluating new systemic therapies are needed.
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Affiliation(s)
- Jose Mauricio Mota
- Genitourinary Oncology Service, Department of Medicine, Memorial Sloan-Kettering Cancer Center, New York, NY, USA
| | - Andrew J Armstrong
- Duke Cancer Institute Center for Prostate and Urologic Cancers, Durham, NC, USA.,Divisions of Medical Oncology and Urology, Departments of Medicine and Surgery, Pharmacology and Cancer Biology, Duke University, Durham, NC, USA
| | - Steven M Larson
- Molecular Pharmacology Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA.,Department of Radiology, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Josef J Fox
- Department of Radiology, Memorial Sloan Kettering Cancer Center, New York, NY, USA.,Department of Radiology, Weill Cornell Medicine, New York, NY, USA
| | - Michael J Morris
- Genitourinary Oncology Service, Department of Medicine, Memorial Sloan-Kettering Cancer Center, New York, NY, USA. .,Department of Medicine, Weill Cornell Medicine, New York, NY, USA.
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Azad GK, Taylor BP, Green A, Sandri I, Swampillai A, Harries M, Kristeleit H, Mansi J, Goh V, Cook GJR. Prediction of therapy response in bone-predominant metastatic breast cancer: comparison of [ 18F] fluorodeoxyglucose and [ 18F]-fluoride PET/CT with whole-body MRI with diffusion-weighted imaging. Eur J Nucl Med Mol Imaging 2019; 46:821-830. [PMID: 30506455 PMCID: PMC6450846 DOI: 10.1007/s00259-018-4223-9] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2018] [Accepted: 11/19/2018] [Indexed: 01/14/2023]
Abstract
PURPOSE To compare [18F]-fluorodeoxyglucose (FDG) and [18F]-sodium fluoride (NaF) positron emission tomography/computed tomography (PET/CT) with whole-body magnetic resonance with diffusion-weighted imaging (WB-MRI), for endocrine therapy response prediction at 8 weeks in bone-predominant metastatic breast cancer. PATIENTS AND METHODS Thirty-one patients scheduled for endocrine therapy had up to five bone metastases measured [FDG, NaF PET/CT: maximum standardized uptake value (SUVmax); WB-MRI: median apparent diffusion coefficient (ADCmed)] at baseline and 8 weeks. To detect the flare phenomenon, a 12-week NaF PET/CT was also performed if 8-week SUVmax increased. A 25% parameter change differentiated imaging progressive disease (PD) from non-PD and was compared to a 24-week clinical reference standard and progression-free survival (PFS). RESULTS Twenty-two patients (median age, 58.6 years, range, 40-79 years) completing baseline and 8-week imaging were included in the final analysis. Per-patient % change in NaF SUVmax predicted 24-week clinical PD with sensitivity, specificity and accuracy of 60, 73.3, and 70%, respectively. For FDG SUVmax the results were 0, 100, and 76.2% and for ADCmed, 0, 100 and 72.2%, respectively. PFS < 24 weeks was associated with % change in SUVmax (NaF: 41.7 vs. 0.7%, p = 0.039; FDG: - 4.8 vs. - 28.6%, p = 0.005) but not ADCmed (- 0.5 vs. 10.1%, p = 0.098). Interlesional response heterogeneity occurred in all modalities and NaF flare occurred in seven patients. CONCLUSIONS FDG PET/CT and WB-MRI best predicted clinical non-PD and both FDG and NaF PET/CT predicted PFS < 24 weeks. Lesional response heterogeneity occurs with all modalities and flare is common with NaF PET/CT.
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Affiliation(s)
- Gurdip K Azad
- Cancer Imaging Department, School of Biomedical Engineering and Imaging Sciences, King's College London, London, UK
| | - Benjamin P Taylor
- Department of Oncology, Guys and St Thomas' Hospital NHS Foundation Trust, London, UK
| | - Adrian Green
- Cancer Imaging Department, School of Biomedical Engineering and Imaging Sciences, King's College London, London, UK
| | - Ines Sandri
- Department of Oncology, Guys and St Thomas' Hospital NHS Foundation Trust, London, UK
| | - Angela Swampillai
- Department of Oncology, Guys and St Thomas' Hospital NHS Foundation Trust, London, UK
| | - Mark Harries
- Department of Oncology, Guys and St Thomas' Hospital NHS Foundation Trust, London, UK
| | - Hartmut Kristeleit
- Department of Oncology, Guys and St Thomas' Hospital NHS Foundation Trust, London, UK
| | - Janine Mansi
- Department of Oncology, Guys and St Thomas' Hospital NHS Foundation Trust, London, UK
| | - Vicky Goh
- Cancer Imaging Department, School of Biomedical Engineering and Imaging Sciences, King's College London, London, UK
| | - Gary J R Cook
- Cancer Imaging Department, School of Biomedical Engineering and Imaging Sciences, King's College London, London, UK.
- King's College London & Guy's and St Thomas' PET Centre, St Thomas' Hospital, London, UK.
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Deep learning for segmentation of 49 selected bones in CT scans: First step in automated PET/CT-based 3D quantification of skeletal metastases. Eur J Radiol 2019; 113:89-95. [PMID: 30927965 DOI: 10.1016/j.ejrad.2019.01.028] [Citation(s) in RCA: 73] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2018] [Revised: 01/11/2019] [Accepted: 01/26/2019] [Indexed: 02/07/2023]
Abstract
PURPOSE The aim of this study was to develop a deep learning-based method for segmentation of bones in CT scans and test its accuracy compared to manual delineation, as a first step in the creation of an automated PET/CT-based method for quantifying skeletal tumour burden. METHODS Convolutional neural networks (CNNs) were trained to segment 49 bones using manual segmentations from 100 CT scans. After training, the CNN-based segmentation method was tested on 46 patients with prostate cancer, who had undergone 18F-choline-PET/CT and 18F-NaF PET/CT less than three weeks apart. Bone volumes were calculated from the segmentations. The network's performance was compared with manual segmentations of five bones made by an experienced physician. Accuracy of the spatial overlap between automated CNN-based and manual segmentations of these five bones was assessed using the Sørensen-Dice index (SDI). Reproducibility was evaluated applying the Bland-Altman method. RESULTS The median (SD) volumes of the five selected bones were by CNN and manual segmentation: Th7 41 (3.8) and 36 (5.1), L3 76 (13) and 75 (9.2), sacrum 284 (40) and 283 (26), 7th rib 33 (3.9) and 31 (4.8), sternum 80 (11) and 72 (9.2), respectively. Median SDIs were 0.86 (Th7), 0.85 (L3), 0.88 (sacrum), 0.84 (7th rib) and 0.83 (sternum). The intraobserver volume difference was less with CNN-based than manual approach: Th7 2% and 14%, L3 7% and 8%, sacrum 1% and 3%, 7th rib 1% and 6%, sternum 3% and 5%, respectively. The average volume difference measured as ratio volume difference/mean volume between the two CNN-based segmentations was 5-6% for the vertebral column and ribs and ≤3% for other bones. CONCLUSION The new deep learning-based method for automated segmentation of bones in CT scans provided highly accurate bone volumes in a fast and automated way and, thus, appears to be a valuable first step in the development of a clinical useful processing procedure providing reliable skeletal segmentation as a key part of quantification of skeletal metastases.
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Lin C, Harmon S, Bradshaw T, Eickhoff J, Perlman S, Liu G, Jeraj R. Response-to-repeatability of quantitative imaging features for longitudinal response assessment. Phys Med Biol 2019; 64:025019. [PMID: 30566922 DOI: 10.1088/1361-6560/aafa0a] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Quantitative imaging biomarkers (QIBs) are often selected and ranked based on their repeatability performance. In the context of treatment response assessment, however, one must also consider how sensitive a QIB is to measuring changes in the tumour. This work introduces response-to-repeatability ratio (R/R), which weighs the ability of a QIB to detect significant changes with respect to its measurement repeatability and applies it to the case of PET texture features. R/R is evaluated as the proportion of measurable changes from baseline to follow-up for each candidate QIB. We analyse 47 texture features extracted from lesions in bone-metastatic prostate cancer patients who received double baseline and/or baseline to treatment follow-up 18F-NaF PET/CT scans. R/R evaluates the proportion of follow-up changes outside of the 95% limits of agreement (LOA) defined by test-retest values. Intraclass correlation coefficient (ICC) and coefficient of variation (CV) are calculated for each feature. Relationship between ICC and R/R are evaluated with the Spearman's correlation coefficient. R/R varied significantly across texture features: 41/47 (87%) features demonstrated R/R > 5%; 21/47 (45%) features demonstrated R/R > 10%, and 11/47 (23%) features demonstrated R/R > 20%. LOA of features ranged from [0.998, 1.001] to [0.22, 4.86]. Repeatability alone did not qualify a feature for its efficacy at detecting measurable change at follow-up, as shown by weak correlations between R/R and both CV and ICC (ρ = 0.23 and ρ = 0.40, respectively). Three features demonstrated excellent ICC (ICC > 0.75) and R/R greater than that of SUVmax (R/R = 41.8%): skewness (ICC = 0.92, R/R = 75.4%), kurtosis (ICC = 0.88, R/R = 47.0%) and diagonal moment (ICC = 0.88, R/R = 45.5%). R/R characterizes the sensitivity of candidate QIBs to detect measurable changes at follow-up. R/R supplements existing precision performance metrics (e.g. CV, ICC, and LOA) as an index to assess the utility of QIBs for response assessment.
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Affiliation(s)
- Christie Lin
- Department of Medical Physics, University of Wisconsin, Madison, WI, United States of America
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34
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Perk T, Bradshaw T, Chen S, Im HJ, Cho S, Perlman S, Liu G, Jeraj R. Automated classification of benign and malignant lesions in 18F-NaF PET/CT images using machine learning. ACTA ACUST UNITED AC 2018; 63:225019. [DOI: 10.1088/1361-6560/aaebd0] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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35
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Perk T, Chen S, Harmon S, Lin C, Bradshaw T, Perlman S, Liu G, Jeraj R. A statistically optimized regional thresholding method (SORT) for bone lesion detection in 18F-NaF PET/CT imaging. ACTA ACUST UNITED AC 2018; 63:225018. [DOI: 10.1088/1361-6560/aaebba] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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36
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Zhu Z, Chung YM, Sergeeva O, Kepe V, Berk M, Li J, Ko HK, Li Z, Petro M, DiFilippo FP, Lee Z, Sharifi N. Loss of dihydrotestosterone-inactivation activity promotes prostate cancer castration resistance detectable by functional imaging. J Biol Chem 2018; 293:17829-17837. [PMID: 30262668 PMCID: PMC6240862 DOI: 10.1074/jbc.ra118.004846] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2018] [Revised: 09/17/2018] [Indexed: 11/06/2022] Open
Abstract
Androgens such as testosterone and dihydrotestosterone are a critical driver of prostate cancer progression. Cancer resistance to androgen deprivation therapies ensues when tumors engage metabolic processes that produce sustained androgen levels in the tissue. However, the molecular mechanisms involved in this resistance process are unclear, and functional imaging modalities that predict impending resistance are lacking. Here, using the human LNCaP and C4-2 cell line models of prostate cancer, we show that castration treatment-sensitive prostate cancer cells that normally have an intact glucuronidation pathway that rapidly conjugates and inactivates dihydrotestosterone and thereby limits androgen signaling, become glucuronidation deficient and resistant to androgen deprivation. Mechanistically, using CRISPR/Cas9-mediated gene ablation, we found that loss of UDP glucuronosyltransferase family 2 member B15 (UGT2B15) and UGT2B17 is sufficient to restore free dihydrotestosterone, sustained androgen signaling, and development of castration resistance. Furthermore, loss of glucuronidation enzymatic activity was also detectable with a nonsteroid glucuronidation substrate. Of note, glucuronidation-incompetent cells and the resultant loss of intracellular conjugated dihydrotestosterone were detectable in vivo by 18F-dihydrotestosterone PET. Together, these findings couple a mechanism with a functional imaging modality to identify impending castration resistance in prostate cancers.
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Affiliation(s)
- Ziqi Zhu
- From the Genitourinary Malignancies Research Center, Department of Cancer Biology, Lerner Research Institute
| | - Yoon-Mi Chung
- From the Genitourinary Malignancies Research Center, Department of Cancer Biology, Lerner Research Institute
| | | | | | - Michael Berk
- From the Genitourinary Malignancies Research Center, Department of Cancer Biology, Lerner Research Institute
| | - Jianneng Li
- From the Genitourinary Malignancies Research Center, Department of Cancer Biology, Lerner Research Institute
| | - Hyun-Kyung Ko
- From the Genitourinary Malignancies Research Center, Department of Cancer Biology, Lerner Research Institute
| | - Zhenfei Li
- From the Genitourinary Malignancies Research Center, Department of Cancer Biology, Lerner Research Institute
| | - Marianne Petro
- From the Genitourinary Malignancies Research Center, Department of Cancer Biology, Lerner Research Institute
| | | | - Zhenghong Lee
- Departments of Radiology; Biomedical Engineering, Case Western Reserve University, Cleveland, Ohio 44124
| | - Nima Sharifi
- From the Genitourinary Malignancies Research Center, Department of Cancer Biology, Lerner Research Institute; Department of Urology, Glickman Urological and Kidney Institute; Department of Hematology and Oncology, Taussig Cancer Institute, Cleveland Clinic, Cleveland, Ohio 44195.
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37
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Quantification of bone flare on 18F-NaF PET/CT in metastatic castration-resistant prostate cancer. Prostate Cancer Prostatic Dis 2018; 22:324-330. [PMID: 30413807 DOI: 10.1038/s41391-018-0110-5] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2018] [Revised: 09/18/2018] [Accepted: 10/03/2018] [Indexed: 11/08/2022]
Abstract
BACKGROUND Bone flare has been observed on 99mTc-MDP bone scans of patients with metastatic castration-resistant prostate cancer (mCRPC). This exploratory study investigates bone flare in mCRPC patients receiving androgen receptor (AR) inhibitors using 18F-NaF PET/CT. METHODS Twenty-nine mCRPC patients undergoing AR-inhibiting therapy (abiraterone, orteronel, enzalutamide) received NaF PET/CT scans at baseline, week 6, and week 12 of treatment. SUV metrics were extracted globally for each patient (SUV) and for each individual lesion (iSUV). Bone flare was defined as increasing SUV metrics or lesion number at week 6 followed by subsequent week 12 decrease. Differences in metrics across timepoints were compared using Wilcoxon tests. Cox proportional hazard regression was conducted between global metrics and progression-free survival (PFS). RESULTS Total SUV was most sensitive for flare detection and was identified in 14/23 (61%) patients receiving CYP17A1-inhibitors (abiraterone, orteronel), and not identified in any of six patients receiving enzalutamide. The appearance of new lesions did not account for initial increases in SUV metrics. iSUV metrics followed patient-level trends: bone flare positive patients showed a median of 72% (range: 0-100%) of lesions with total iSUV flare. Increasing mean SUV at week 6 correlated with extended PFS (HR = 0.58, p = 0.02). CONCLUSION NaF PET bone flare was present on 61% of mCRPC patients in the first 6 weeks of treatment with CYP17A1-inhibitors. Characterization provided in this study suggests favorable PFS in patients showing bone flare. This characterization of NaF flare is important for guiding treatment assessment schedules to better distinguish between patients showing bone flare and those truly progressing, and should be performed for all emerging mCRPC treatments and imaging agents.
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38
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Jadvar H, Colletti PM. 18F-NaF/ 223RaCl 2 theranostics in metastatic prostate cancer: treatment response assessment and prediction of outcome. Br J Radiol 2018; 91:20170948. [PMID: 29630398 PMCID: PMC6475949 DOI: 10.1259/bjr.20170948] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2017] [Revised: 03/03/2018] [Accepted: 04/01/2018] [Indexed: 12/15/2022] Open
Abstract
Theranostics refers to companion agents with identical or similar structure targeted to a specific biological entity for imaging and treatment. Although the concept has a long history with radioiodine in thyroidology, but it has experienced remarkable recent renaissance in management of neuroendocrine tumors and prostate cancer. Bone scintigraphy based on osteoblastic reaction and targeted radionuclide therapy with the alpha-particle calcium-mimetic agent, 223RaCl2, also form a theranostic model for imaging and treatment of osseous metastatic disease. Since the regulatory approval of 223RaCl2 in 2013, there has been accumulating evidence on the potential use of 18F-NaF PET scintigraphy in the assessment of response and prediction of outcome in males with metastatic castrate-resistant prostate cancer who undergo 223RaCl2 therapy. We review the 18F-NaF/223RaCl2 as theranostic companion in the management of prostate cancer with emphasis on the utility of 18F-NaF and other relevant PET radiotracers in the therapy response and prognosis assessments.
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Affiliation(s)
- Hossein Jadvar
- Division of Nuclear Medicine, Department of Radiology, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
| | - Patrick M Colletti
- Division of Nuclear Medicine, Department of Radiology, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
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39
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Brito AE, Mourato F, Santos A, Mosci C, Ramos C, Etchebehere E. Validation of the Semiautomatic Quantification of 18F-Fluoride PET/CT Whole-Body Skeletal Tumor Burden. J Nucl Med Technol 2018; 46:378-383. [PMID: 30076246 DOI: 10.2967/jnmt.118.211474] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2018] [Accepted: 06/29/2018] [Indexed: 11/16/2022] Open
Abstract
Our purpose was to validate a semiautomatic quantification of the skeletal tumor burden on 18F-fluoride PET/CT using manual quantification as a reference. Methods: We quantified 51 18F-fluoride PET/CT examinations performed on female breast cancer patients. Clinical information (age; time of disease presentation; presence of visceral metastases; and time to death, progression, or a bone event) was recorded. The total volume of 18F-fluoride-avid skeletal metastases and the total activity of 18F-fluoride-avid metastases were calculated manually and semiautomatically. Results: Manual and semiautomatic metrics correlated strongly (P < 0.0001; 95% confidence interval, 0.9300-0.9769). On multivariable analysis, the semiautomatic measures of total activity for 18F-fluoride-avid metastasis correlated significantly with overall survival (P = 0.0001) and progression-free survival (P = 0.0006). Approximate times for calculating skeletal tumor burden (semiautomatic vs. manual) were, respectively, 30 s versus 321 s in patients with fewer than 5 metastases, 120 s versus 640 s in patients with 5-10 metastases, and 240 s versus 1207s in patients with more than 10 metastases. Conclusion: Semiautomatic quantification of whole-body 18F-fluoride PET/CT skeletal tumor burden can replace manual quantification in breast cancer patients and is a strong independent biomarker of prognosis.
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Affiliation(s)
- Ana E Brito
- Real Nuclear of Real Hospital Português de Beneficência em Pernambuco, Recife, Brazil.,Keizo Asami Immunopathology Laboratory, Federal University of Pernambuco, Recife, Brazil.,Division of Nuclear Medicine, Department of Radiology, University of Campinas, Campinas, Brazil; and
| | - Felipe Mourato
- Real Nuclear of Real Hospital Português de Beneficência em Pernambuco, Recife, Brazil
| | - Allan Santos
- Division of Nuclear Medicine, Department of Radiology, University of Campinas, Campinas, Brazil; and.,MND Campinas, Campinas, Brazil
| | - Camila Mosci
- Division of Nuclear Medicine, Department of Radiology, University of Campinas, Campinas, Brazil; and
| | - Celso Ramos
- Division of Nuclear Medicine, Department of Radiology, University of Campinas, Campinas, Brazil; and.,MND Campinas, Campinas, Brazil
| | - Elba Etchebehere
- Division of Nuclear Medicine, Department of Radiology, University of Campinas, Campinas, Brazil; and .,MND Campinas, Campinas, Brazil
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40
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Fonager RF, Zacho HD, Langkilde NC, Fledelius J, Ejlersen JA, Hendel HW, Haarmark C, Moe M, Mortensen JC, Jochumsen MR, Petersen LJ. Prospective comparative study of 18F-sodium fluoride PET/CT and planar bone scintigraphy for treatment response assessment of bone metastases in patients with prostate cancer. Acta Oncol 2018; 57:1063-1069. [PMID: 29447047 DOI: 10.1080/0284186x.2018.1438651] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
AIM To compare 18F-sodium fluoride positron emission tomography/computed tomography (NaF PET/CT) and 99mTc-labelled diphosphonate bone scan (BS) for the monitoring of bone metastases in patients with prostate cancer undergoing anti-cancer treatment. MATERIAL AND METHODS Data from 64 patients with prostate cancer were included. The patients received androgen-deprivation therapy (ADT), next-generation hormonal therapy (NGH) or chemotherapy. The patients had a baseline scan and 1-3 subsequent scans during six months of treatment. Images were evaluated by experienced nuclear medicine physicians and classified for progressive disease (PD) or non-PD according to the Prostate Cancer Working Group 2 (PCWG-2) criteria. The patients were also classified as having PD/non-PD according to the clinical and prostate-specific antigen (PSA) responses. RESULTS There was no difference between NaF PET/CT and BS in the detection of PD and non-PD during treatment (McNemar's test, p = .18). The agreement between BS and NaF PET/CT for PD/non-PD was moderate (Cohen's kappa 0.53, 95% confidence interval 0.26-0.79). Crude agreement between BS and NaF PET/CT for the assessment of PD/non-PD was 86% (89% for ADT, n = 28; 88% for NGH, n = 16, and 80% for chemotherapy, n = 20). In most discordant cases, BS found PD when NaF PET/CT did not, or BS detected PD on an earlier scan than NaF PET/CT. Biochemical progression (27%) occurred more frequently than progression on functional imaging (BS, 22% and NaF PET/CT, 14%). Clinical progression was rare (11%), and almost exclusively seen in patients receiving chemotherapy. CONCLUSION There was no difference between NaF PET/CT and BS in the detection of PD and non-PD; however, BS seemingly detects PD by the PCWG-2 criteria earlier than NaF-PET, which might be explained by the fact that NaF-PET is more sensitive at the baseline scan.
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Affiliation(s)
- Randi Fuglsang Fonager
- Department of Nuclear Medicine, Clinical Cancer Research Center, Aalborg University Hospital, Aalborg, Denmark
- Department of Clinical Medicine, Aalborg University, Aalborg, Denmark
| | - Helle Damgaard Zacho
- Department of Nuclear Medicine, Clinical Cancer Research Center, Aalborg University Hospital, Aalborg, Denmark
- Department of Clinical Medicine, Aalborg University, Aalborg, Denmark
| | | | - Joan Fledelius
- Department of Nuclear Medicine, Regional Hospital West Jutland, Herning, Denmark
| | - June Anita Ejlersen
- Department of Nuclear Medicine, Regional Hospital West Jutland, Herning, Denmark
| | | | - Christian Haarmark
- Department of Clinical Physiology and Nuclear Medicine, Herlev Hospital, Herlev, Denmark
| | - Mette Moe
- Department of Oncology, Aalborg University Hospital, Aalborg, Denmark
| | | | - Mads Ryø Jochumsen
- Department of Urology, Regional Hospital West Jutland, Holstebro, Denmark
| | - Lars Jelstrup Petersen
- Department of Nuclear Medicine, Clinical Cancer Research Center, Aalborg University Hospital, Aalborg, Denmark
- Department of Clinical Medicine, Aalborg University, Aalborg, Denmark
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Fiz F, Dittman H, Campi C, Morbelli S, Marini C, Brignone M, Bauckneht M, Piva R, Massone AM, Piana M, Sambuceti G, la Fougère C. Assessment of Skeletal Tumor Load in Metastasized Castration-Resistant Prostate Cancer Patients: A Review of Available Methods and an Overview on Future Perspectives. Bioengineering (Basel) 2018; 5:bioengineering5030058. [PMID: 30060546 PMCID: PMC6163573 DOI: 10.3390/bioengineering5030058] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2018] [Revised: 07/23/2018] [Accepted: 07/26/2018] [Indexed: 11/16/2022] Open
Abstract
Metastasized castration-resistant prostate cancer (mCRPC), is the most advanced form of prostate neoplasia, where massive spread to the skeletal tissue is frequent. Patients with this condition are benefiting from an increasing number of treatment options. However, assessing tumor response in patients with multiple localizations might be challenging. For this reason, many computational approaches have been developed in the last decades to quantify the skeletal tumor burden and treatment response. In this review, we analyzed the progressive development and diffusion of such approaches. A computerized literature search of the PubMed/Medline was conducted, including articles between January 2008 and March 2018. The search was expanded by manually reviewing the reference list of the chosen articles. Thirty-five studies were identified. The number of eligible studies greatly increased over time. Studies could be categorized in the following categories: automated analysis of 2D scans, SUV-based thresholding, hybrid CT- and SUV-based thresholding, and MRI-based thresholding. All methods are discussed in detail. Automated analysis of bone tumor burden in mCRPC is a growing field of research; when choosing the appropriate method of analysis, it is important to consider the possible advantages as well as the limitations thoroughly.
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Affiliation(s)
- Francesco Fiz
- Nuclear Medicine Unit, Department of Radiology, Uni-Klinikum Tübingen, 72076 Tübingen, Germany.
- Department of Internal Medicine, University of Genoa, 16132 Genoa, Italy.
| | - Helmut Dittman
- Nuclear Medicine Unit, Department of Radiology, Uni-Klinikum Tübingen, 72076 Tübingen, Germany.
| | - Cristina Campi
- Nuclear Medicine Unit, Department of Medicine-DIMED, University Hospital of Padua, 35128 Padua, Italy.
| | - Silvia Morbelli
- Nuclear Medicine Unit, Department of Health Sciences, University of Genoa, 16132 Genoa, Italy.
| | | | - Massimo Brignone
- Department of Engineering, University of Genoa, Pole of Savona, 17100 Savona, Italy.
| | - Matteo Bauckneht
- Nuclear Medicine Unit, Department of Health Sciences, University of Genoa, 16132 Genoa, Italy.
| | - Roberta Piva
- Nuclear Medicine Unit, Department of Health Sciences, University of Genoa, 16132 Genoa, Italy.
| | - Anna Maria Massone
- National Council of Research-SPIN, 16152 Genoa, Italy.
- Department of Mathematics, University of Genoa, 16146 Genoa, Italy.
| | - Michele Piana
- National Council of Research-SPIN, 16152 Genoa, Italy.
- Department of Mathematics, University of Genoa, 16146 Genoa, Italy.
| | - Gianmario Sambuceti
- Nuclear Medicine Unit, Department of Health Sciences, University of Genoa, 16132 Genoa, Italy.
| | - Christian la Fougère
- Nuclear Medicine Unit, Department of Radiology, Uni-Klinikum Tübingen, 72076 Tübingen, Germany.
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42
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Cook GJ, Goh V. Functional and Hybrid Imaging of Bone Metastases. J Bone Miner Res 2018; 33:961-972. [PMID: 29665140 PMCID: PMC7616187 DOI: 10.1002/jbmr.3444] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/10/2018] [Revised: 04/02/2018] [Accepted: 04/06/2018] [Indexed: 12/21/2022]
Abstract
Bone metastases are common, cause significant morbidity, and impact on healthcare resources. Although radiography, computed tomography (CT), magnetic resonance imaging (MRI), and bone scintigraphy have frequently been used for staging the skeleton, these methods are insensitive and nonspecific for monitoring treatment response in a clinically relevant time frame. We summarize several recent reports on new functional and hybrid imaging methods including single photon emission CT/CT, positron emission tomography/CT, and whole-body MRI with diffusion-weighted imaging. These modalities generally show improvements in diagnostic accuracy for staging and response assessment over standard imaging methods, with the ability to quantify biological processes related to the bone microenvironment as well as tumor cells. As some of these methods are now being adopted into routine clinical practice and clinical trials, further evaluation with comparative studies is required to guide optimal and cost-effective clinical management of patients with skeletal metastases. © 2018 American Society for Bone and Mineral Research.
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Affiliation(s)
- Gary Jr Cook
- Department of Cancer Imaging, School of Biomedical Engineering and Imaging Sciences, King's College London, St Thomas' Hospital, London SE1 7EH, United Kingdom
- King's College London and Guy's & St Thomas' PET Centre, St Thomas' Hospital, London SE1 7EH, United Kingdom
| | - Vicky Goh
- Department of Cancer Imaging, School of Biomedical Engineering and Imaging Sciences, King's College London, St Thomas' Hospital, London SE1 7EH, United Kingdom
- Radiology Department, Guy's & St Thomas' Hospitals, London SE1 7EH, United Kingdom
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43
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Peterson LM, O'Sullivan J, Wu QV, Novakova-Jiresova A, Jenkins I, Lee JH, Shields A, Montgomery S, Linden HM, Gralow J, Gadi VK, Muzi M, Kinahan P, Mankoff D, Specht JM. Prospective Study of Serial 18F-FDG PET and 18F-Fluoride PET to Predict Time to Skeletal-Related Events, Time to Progression, and Survival in Patients with Bone-Dominant Metastatic Breast Cancer. J Nucl Med 2018; 59:1823-1830. [PMID: 29748233 DOI: 10.2967/jnumed.118.211102] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2018] [Accepted: 04/30/2018] [Indexed: 12/16/2022] Open
Abstract
Assessing therapy response of breast cancer bone metastases is challenging. In retrospective studies, serial 18F-FDG PET was predictive of time to skeletal-related events (tSRE) and time to progression (TTP). 18F-NaF PET improves bone metastasis detection compared with bone scanning. We prospectively tested 18F-FDG PET and 18F-NaF PET to predict tSRE, TTP, and overall survival (OS) in patients with bone-dominant metastatic breast cancer (MBC). Methods: Patients with bone-dominant MBC were imaged with 18F-FDG PET and 18F-NaF PET before starting new therapy (scan1) and again at a range of times centered around approximately 4 mo later (scan2). Maximum standardized uptake value (SUVmax) and lean body mass adjusted standardized uptake (SULpeak) were recorded for a single index lesion and up to 5 most dominant lesions for each scan. tSRE, TTP, and OS were assessed exclusive of the PET images. Univariate Cox regression was performed to test the association between clinical endpoints and 18F-FDG PET and 18F-NaF PET measures. mPERCIST (Modified PET Response Criteria in Solid Tumors) were also applied. Survival curves for mPERCIST compared response categories of complete response+partial response+stable disease versus progressive disease for tSRE, TTP, and OS. Results: Twenty-eight patients were evaluated. Higher 18F-FDG SULpeak at scan2 predicted shorter time to tSRE (P = <0.001) and TTP (P = 0.044). Higher 18F-FDG SUVmax at scan2 predicted a shorter time to tSRE (P = <0.001). A multivariable model using 18F-FDG SUVmax of the index lesion at scan1 plus the difference in SUVmax of up to 5 lesions between scans was predictive for tSRE and TTP. Among 24 patients evaluable by 18F-FDG PET mPERCIST, tSRE and TTP were longer in responders (complete response, partial response, or stable disease) than in nonresponders (progressive disease) (P = 0.007, 0.028, respectively), with a trend toward improved survival (P = 0.1). An increase in the uptake between scans of up to 5 lesions by 18F-NaF PET was associated with longer OS (P = 0.027). Conclusion: Changes in 18F-FDG PET parameters during therapy are predictive of tSRE and TTP, but not OS. mPERCIST evaluation in bone lesions may be useful in assessing response to therapy and is worthy of evaluation in multicenter, prospective trials. Serial 18F-NaF PET was associated with OS but was not useful for predicting TTP or tSRE in bone-dominant MBC.
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Affiliation(s)
- Lanell M Peterson
- Division of Medical Oncology, University of Washington, Seattle, Washington
| | - Janet O'Sullivan
- Department of Statistics, University College Cork, Cork, Ireland
| | - Qian Vicky Wu
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, Washington
| | | | - Isaac Jenkins
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, Washington
| | - Jean H Lee
- Department of Radiology, University of Washington, Seattle, Washington
| | - Andrew Shields
- Department of Radiology, University of Washington, Seattle, Washington
| | | | - Hannah M Linden
- Division of Medical Oncology, University of Washington, Seattle, Washington.,Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, Washington
| | - Julie Gralow
- Division of Medical Oncology, University of Washington, Seattle, Washington.,Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, Washington
| | - Vijayakrishna K Gadi
- Division of Medical Oncology, University of Washington, Seattle, Washington.,Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, Washington
| | - Mark Muzi
- Department of Radiology, University of Washington, Seattle, Washington
| | - Paul Kinahan
- Department of Radiology, University of Washington, Seattle, Washington
| | - David Mankoff
- Department of Radiology, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Jennifer M Specht
- Division of Medical Oncology, University of Washington, Seattle, Washington.,Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, Washington
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Namías M, Bradshaw T, Menezes VO, Machado MAD, Jeraj R. A novel approach for quantitative harmonization in PET. ACTA ACUST UNITED AC 2018; 63:095019. [DOI: 10.1088/1361-6560/aabb5f] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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Gareen IF, Hillner BE, Hanna L, Makineni R, Duan F, Shields AF, Subramaniam RM, Siegel BA. Hospice Admission and Survival After 18F-Fluoride PET Performed for Evaluation of Osseous Metastatic Disease in the National Oncologic PET Registry. J Nucl Med 2017; 59:427-433. [PMID: 29284672 DOI: 10.2967/jnumed.117.205120] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2017] [Accepted: 12/20/2017] [Indexed: 12/27/2022] Open
Abstract
We have previously reported that PET using 18F-fluoride (NaF PET) for assessment of osseous metastatic disease was associated with substantial changes in intended management in Medicare beneficiaries participating in the National Oncologic PET Registry (NOPR). Here, we use Medicare administrative data to examine the association between NaF PET results and hospice claims within 180 d and 1-y survival. Methods: We classified NOPR NaF PET results linked to Medicare claims by imaging indication (initial staging [IS]; detection of suspected first osseous metastasis [FOM]; suspected progression of osseous metastasis [POM]; or treatment monitoring [TM]) and type of cancer (prostate, lung, breast, or other). Results were classified as definitely positive scan findings versus probably positive scan findings versus negative scan findings for osseous metastasis for IS and FOM; more extensive disease versus no change or less extensive disease for POM; and worse prognosis versus no change or better prognosis for TM, based on the postscan assessment. Our study included 21,167 scans obtained from 2011 to 2014 of consenting NOPR participants aged 65 y or older. Results: The relative risk of hospice claims within 180 d of a NaF PET scan was 2.0-7.5 times higher for patients with evidence of new or progressing osseous metastasis than for those without, depending on indication and cancer type (all P < 0.008). The percentage difference in hospice claims for those with a finding of new or more advanced osseous disease ranged from 3.9% for IS prostate patients to 28% for FOM lung patients. Six-month survival was also associated with evidence of new or increased osseous disease; risk of death was 1.8-5.1 times as likely (all P ≤ 0.0001), with percentage differences of approximately 30% comparing positive and negative scans in patients with lung cancer imaged for IS or FOM. Conclusion: Our analyses demonstrated that NaF PET scan results are highly associated with subsequent hospice claims and, ultimately, with patient survival. NaF PET provides important information on the presence of osseous metastasis and prognosis to assist patients and their physicians when making decisions on whether to select palliative care and transition to hospice or whether to continue treatment.
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Affiliation(s)
- Ilana F Gareen
- Department of Epidemiology, Brown University School of Public Health, Providence, Rhode Island .,Center for Statistical Sciences, Brown University, Providence, Rhode Island
| | - Bruce E Hillner
- Department of Internal Medicine and the Massey Cancer Center, Virginia Commonwealth University, Richmond, Virginia
| | - Lucy Hanna
- Center for Statistical Sciences, Brown University, Providence, Rhode Island
| | - Rajesh Makineni
- Center for Statistical Sciences, Brown University, Providence, Rhode Island
| | - Fenghai Duan
- Center for Statistical Sciences, Brown University, Providence, Rhode Island.,Department of Biostatistics, Brown University School of Public Health, Providence, Rhode Island
| | - Anthony F Shields
- Karmanos Cancer Institute, Wayne State University, Detroit, Michigan
| | - Rathan M Subramaniam
- Division of Nuclear Medicine, Department of Radiology, and Harold C. Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, Dallas, Texas; and
| | - Barry A Siegel
- Division of Nuclear Medicine, Mallinckrodt Institute of Radiology and the Siteman Cancer Center, Washington University School of Medicine, St. Louis, Missouri
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Zacho HD, Petersen LJ. Author Reply. Urology 2017; 108:141. [PMID: 28859908 DOI: 10.1016/j.urology.2017.05.060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Affiliation(s)
- Helle D Zacho
- Department of Nuclear Medicine, Clinical Cancer Research Center, Aalborg University Hospital, Aalborg, Denmark; Department of Clinical Medicine, Aalborg University, Aalborg, Denmark; Department of Clinical Physiology, Viborg Hospital, Viborg, Denmark
| | - Lars J Petersen
- Department of Nuclear Medicine, Clinical Cancer Research Center, Aalborg University Hospital, Aalborg, Denmark; Department of Clinical Medicine, Aalborg University, Aalborg, Denmark
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Zacho HD, Petersen LJ. WITHDRAWN: Author Reply to the Editorial Comment on: Zacho HD, Gade M, Mortensen JC, Bertelsen H, Boldsen SK, Petersen LJ. Bone Scan Index Is an Independent Predictor for Time to Castration Resistant Prostate Cancer in Newly Diagnosed Prostate Cancer: A Prospective Study. Urology 2017, In Press. Urology 2017:S0090-4295(17)30760-4. [PMID: 28755965 DOI: 10.1016/j.urology.2017.07.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2017] [Revised: 07/17/2017] [Accepted: 07/20/2017] [Indexed: 10/19/2022]
Abstract
The Publisher regrets that this article is an accidental duplication of an article that has already been published, http://dx.doi.org/10.1016/j.urology.2017.05.060. The duplicate article has therefore been withdrawn. The full Elsevier Policy on Article Withdrawal can be found at https://www.elsevier.com/about/our-business/policies/article-withdrawal.
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Affiliation(s)
- Hellen D Zacho
- Department of Nuclear Medicine, Clinical Cancer Research Center, Aalborg University Hospital, Aalborg, Denmark; Department of Clinical Medicine, Aalborg University, Aalborg, Denmark; Department of Clinical Physiology, Viborg Hospital, Viborg, Denmark
| | - Lars J Petersen
- Department of Nuclear Medicine, Clinical Cancer Research Center, Aalborg University Hospital, Aalborg, Denmark; Department of Clinical Medicine, Aalborg University, Aalborg, Denmark
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