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Kaderi ASA, Sabita J, Tiwari VK, Pawar A, Niyogi D. Treatment Response to Neoadjuvant Therapy in Squamous Esophageal Cancer-Correlation Between Metabolic Response and Histopathology. J Gastrointest Cancer 2024; 55:820-828. [PMID: 38308686 DOI: 10.1007/s12029-024-01013-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/07/2024] [Indexed: 02/05/2024]
Abstract
PURPOSE Esophageal cancer is among the leading causes of cancer-related mortality worldwide. Patients presenting with localized and loco-regionally advanced cancer without distant metastases have reasonable survival with multimodality management. Adequate and comprehensive staging is the backbone for proper selection of patients fit for curative treatment. Positron emission tomography (PET) in combination with contrast-enhanced computed tomography (CECT) is utilized as the standard staging modality. Multimodality treatment has been able to achieve evaluable tumor responses including pathological complete response (pCR). It is, therefore, necessary to understand whether the impact of neoadjuvant therapy can be evaluated on imaging, i.e., standardized uptake value (SUV) on PET scan done for response assessment and if this can be correlated with histopathological response and later, with survival. Squamous cell carcinoma (SCC) is more common globally and in the Indian subcontinent; hence, we chose this subgroup to evaluate our hypothesis. METHODS This is a single institution, retrospective study. Out of the 1967 patients who were treated between 2009 and 2019, 1369 (78.54%) patients had SCC. Out of these, 44 received NACTRT, whereas 1325 received NACT followed by curative surgery. The standardized uptake value (SUV) of 18-fluorodeoxyglucose was recorded during pre- and post-neoadjuvant treatment (NAT) using positron emission tomography (PET). The histopathology of the final resection specimen was evaluated using the Mandard tumor regression grade (TRG) criteria with response being graded from 0 to 5 as no residual tumor (NRT), scanty residual tumor (SRT), and residual tumor We attempted to find a cut-off value of the post neoadjuvant SUV of the primary tumor site which correlated with achievement of better histopathological response. RESULTS Out of 1325 patients of SCC esophagus who underwent surgery, 943 patients had available data of TRG, and it was categorized into the 0-2 category which had 325 patients (34.5%) and 3-5 category, 618 patients (65.5%). The SUV was taken only from the PET scans done at our institution, so as to achieve a more homogenous cohort, and this was available for 186 patients, 151 from the NACT group and 35 from the NACTRT group. The ROC method was used to find the cut-off for SUV (5.05) in the NACT cohort, which depicted significant difference in the outcome. Out of these, 93 patients who underwent NACT had SUV > 5.05 and 58 had SUV < 5.05. It was found that the subjective and objective histopathological scores correlated at a p value of < 0.0001. Specifically, the majority of cases with SRT tended to be in the 3-5 category of TRG, whereas cases with NRT are predominantly in the 0-2 category. In the ≥ 5.05 category of SUV, there were 76 cases with SRT. In the NACT cohort, the < 5.05 category of SUV, there are 26 cases with SRT and 32 cases with NRT. Among cases with SRT, 74.5% had SUV ≥ 5.05, while 25.5% had SUV < 5.05. Among cases with NRT, 34.7% had SUV ≥ 5.05, while 65.3% had SUV < 5.05 (p value 0.007). No significant association was found in the radio-pathological correlation in the NACTRT group. CONCLUSION Our study confirms the correlation of post neoadjuvant chemotherapy PET SUV with histopathological response, the cut-off of SUV being 5.05 in our cohort. This confirms the predictive value of FDG PET as demonstrated in other studies. Furthermore, its prognostic value with respect to survival has been verified in multiple other studies. With larger scale randomized studies, we may be able to identify the group of patients who have borderline operability anatomically as well as physiologically, where alternative treatment regimens may be indicated to improve outcomes.
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Affiliation(s)
| | - Jiwnani Sabita
- Thoracic Surgery, Department of Surgical Oncology, Tata Memorial Centre, Homi Bhabha National Institute, Mumbai, India.
| | - Virendra Kumar Tiwari
- Department of Surgical Oncology, Tata Memorial Hospital, Mumbai, India
- Thoracic Surgery, Department of Surgical Oncology, Tata Memorial Centre, Homi Bhabha National Institute, Mumbai, India
| | - Akash Pawar
- Clinical Research Secretariat, Tata Memorial Hospital, Parel, Mumbai, India
| | - Devayani Niyogi
- Department of Surgical Oncology, Tata Memorial Hospital, Mumbai, India
- Thoracic Surgery, Department of Surgical Oncology, Tata Memorial Centre, Homi Bhabha National Institute, Mumbai, India
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Chiu CH, Yang DJ, Liou YC, Chang WC, Yu TH, Chung MC, Lee YC, Chen IJ, Wang PY, Lin CP, Tsay HJ, Yeh SHH. Assessment of DNA/RNA Deregulation in Cancer Using 99mTc-Labeled Thiopurine. Cancer Biother Radiopharm 2024; 39:358-372. [PMID: 38457659 DOI: 10.1089/cbr.2023.0148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/10/2024] Open
Affiliation(s)
- Chuang-Hsin Chiu
- Department of Nuclear Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
| | - David J Yang
- Seecure/Taiwan Hopax Chemicals MFG Company Ltd., Kaohsiung, Taiwan
| | - Yi-Chen Liou
- Institute of Neuroscience, National Chaio Tung University, Taipei, Taiwan
| | - Wei-Chung Chang
- Seecure/Taiwan Hopax Chemicals MFG Company Ltd., Kaohsiung, Taiwan
| | - Tsung-Hsun Yu
- Brain Research Center, National Chaio Tung University, Taipei, Taiwan
- Brain Research Center, School of Medicine, National Defense Medical Center Taipei, Taiwan
| | - Min-Ching Chung
- Seecure/Taiwan Hopax Chemicals MFG Company Ltd., Kaohsiung, Taiwan
| | - Yen-Chun Lee
- Seecure/Taiwan Hopax Chemicals MFG Company Ltd., Kaohsiung, Taiwan
| | - Ing-Jou Chen
- Department of Nuclear Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
| | - Pao-Yeh Wang
- Brain Research Center, School of Medicine, National Defense Medical Center Taipei, Taiwan
| | - Ching-Po Lin
- Institute of Neuroscience, National Chaio Tung University, Taipei, Taiwan
| | - Hey-Jen Tsay
- Institute of Neuroscience, National Chaio Tung University, Taipei, Taiwan
| | - Skye Hsin-Hsien Yeh
- Brain Research Center, National Chaio Tung University, Taipei, Taiwan
- Brain Research Center, School of Medicine, National Defense Medical Center Taipei, Taiwan
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Kim SY, Crook D, Rosskopf J, Lee JH. Diagnostic value of 18F-FDG PET/CT versus diffusion-weighted MRI in detection of residual or recurrent tumors after definitive (chemo) radiotherapy for laryngeal and hypopharyngeal squamous cell carcinoma: A prospective study. Head Neck 2024. [PMID: 38712471 DOI: 10.1002/hed.27796] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Revised: 04/20/2024] [Accepted: 04/22/2024] [Indexed: 05/08/2024] Open
Abstract
BACKGROUND Despite advances in treatment, residual or recurrent tumors after definitive (chemo) radiotherapy for laryngeal and hypopharyngeal squamous cell carcinoma (SCC) remain a challenge in clinical management and require accurate and timely detection for optimal salvage therapy. This study aimed to compare the diagnostic value of Fluorine 18 (18F) fluorodeoxyglucose (FDG) positron emission tomography (PET)/computed tomography (CT) and diffusion-weighted magnetic resonance imaging (DW-MRI) in detecting residual or recurrent tumors after definitive (chemo) radiotherapy for laryngeal and hypopharyngeal SCC. METHODS A prospective study was conducted on 30 patients who presented with new symptoms after definitive (chemo) radiotherapy for laryngeal (n = 21) and hypopharyngeal (n = 9) carcinoma. Both 18F-FDG PET/CT and DW-MRI were performed and histopathologic analysis served as the standard of reference. RESULTS Histopathology showed 20 patients as positive and 10 as negative for tumors. 18F-FDG PET/CT detected all tumors correctly but was falsely positive in one case. DW-MRI detected tumors in 18 out of 20 positive patients and correctly excluded tumors in all negative patients. The sensitivity and specificity of 18F-FDG PET/CT were 100% and 90%, respectively, while the values for DW-MRI were 90% and 100%, respectively. CONCLUSIONS The study concludes that 18F-FDG PET/CT is slightly superior to DW-MRI in detecting residual or recurrent tumors after definitive (chemo) radiotherapy for laryngeal and hypopharyngeal SCC. The combined use of 18F-FDG PET/CT and DW-MRI can potentially improve specificity in therapy response evaluation.
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Affiliation(s)
| | - David Crook
- Department of Radiology, Spital Muri, Muri, Switzerland
| | - Johannes Rosskopf
- BKH Günzburg, Günzburg, Germany
- Department of Diagnostic and Interventional Radiology, University Hospital Ulm, Ulm, Germany
| | - Jung-Hyun Lee
- Department of Life Science, University of Seoul, Seoul, Republic of Korea
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Zirakchian Zadeh M. The role of conventional and novel PET radiotracers in assessment of myeloma bone disease. Bone 2024; 179:116957. [PMID: 37972747 DOI: 10.1016/j.bone.2023.116957] [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: 06/25/2023] [Revised: 11/06/2023] [Accepted: 11/07/2023] [Indexed: 11/19/2023]
Abstract
Over 80 % of patients with multiple myeloma (MM) experience osteolytic bone lesions, primarily due to an imbalanced interaction between osteoclasts and osteoblasts. This imbalance can lead to several adverse outcomes such as pain, fractures, limited mobility, and neurological impairments. Myeloma bone disease (MBD) raises the expense of management in addition to being a major source of disability and morbidity in myeloma patients. Whole-body x-ray radiography was the gold standard imaging modality for detecting lytic lesions. Osteolytic lesions are difficult to identify at an earlier stage on X-ray since the lesions do not manifest themselves on conventional radiographs until at least 30 % to 50 % of the bone mass has been destroyed. Hence, early diagnosis of osteolytic lesions necessitates the utilization of more complex and advanced imaging modalities, such as PET. One of the PET radiotracers that has been frequently investigated in MM is 18F-FDG, which has demonstrated a high level of sensitivity and specificity in detecting myeloma lesions. However, 18F-FDG PET/CT has several restrictions, and therefore the novel PET tracers that can overcome the limitations of 18F-FDG PET/CT should be further examined in assessment of MBD. The objective of this review article is to thoroughly examine the significance of both conventional and novel PET radiotracers in the assessment of MBD. The intention is to present the information in a manner that would be easily understood by healthcare professionals from diverse backgrounds, while minimizing the use of complex nuclear medicine terminology.
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Affiliation(s)
- Mahdi Zirakchian Zadeh
- Molecular Imaging and Therapy and Interventional Radiology Services, Department of Radiology, Memorial Sloan Kettering Cancer Center, 1275 York Avenue, New York, NY 10065, USA.
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Mangalore S, Vankayalapati S, Gupta AK. Role of whole body MRI in paraneoplastic/autoimmune syndromes: An MRPET study to standardize protocols, pattern interpretation, and establish yield of MRI. Medicine (Baltimore) 2024; 103:e36413. [PMID: 38181298 PMCID: PMC10766260 DOI: 10.1097/md.0000000000036413] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Accepted: 11/10/2023] [Indexed: 01/07/2024] Open
Abstract
Imaging a case of autoimmune encephalitis (AIE) can be challenging as the underlying tumor may be occult. The aim of this retrospective case-based study is to evaluate role of whole-body MRI/Positron emission tomography (PET) in workup of AIE. Standardizing the whole-body MRI/PET protocol, Cross modality yield with serology and magnetic resonance/PET (MR/PET) and finally highlight the advantage of hybrid MR/PET. We present the retrospective review data from January 2016 to December 2019 referred for whole body MR/PET with suspected AIE/Paraneoplastic syndrome, per consensus criteria, treated at a single tertiary center. Analysis is done group wise based on referral being for oncological, immunological or neuropsychiatric condition. Detailed results with sensitivity and specificity are presented in tabular format with case-based review in our series for protocols and advantages of MR/PET. Among total of 600 MR/PET cases, 227 were suspected of AIE/paraneoplastic syndrome and were referred for whole body imaging. Distribution of Group 1 Known oncology group (n = 10), Group 2 Non oncological systemic illness group (n = 174) and group 3 the primary neuropsychiatric illness (n = 43) with Group 2 being largest. The gender distribution was similar and mean age was 42 years. Seronegative cases (n = 130) were greater than seropositive cases (n = 97). Seropositivity was in the following order Autoimmune > Paraneoplastic > Myositis panel. Whole body MRPET yielded occult malignancy in 9% and imaging abnormality in 88% of cases. Whole body MR/PET has an important role in workup of AIE. Selection of the appropriate protocol is important, especially when history and physical examination are nonspecific.
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Affiliation(s)
- Sandhya Mangalore
- Department of Neuroimaging and interventional Radiology, National Institute of Mental Health and Neurosciences, Bangalore, India
| | - Sriharish Vankayalapati
- Department of Neuroimaging and interventional Radiology, National Institute of Mental Health and Neurosciences, Bangalore, India
| | - Arun Kumar Gupta
- Department of Neuroimaging and interventional Radiology, National Institute of Mental Health and Neurosciences, Bangalore, India
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Huang X, Leo P, Jones L, Duijf PHG, Hartel G, Kenny L, Vasani S, Punyadeera C. A comparison between mutational profiles in tumour tissue DNA and circulating tumour DNA in head and neck squamous cell carcinoma - A systematic review. MUTATION RESEARCH. REVIEWS IN MUTATION RESEARCH 2024; 793:108477. [PMID: 37977279 DOI: 10.1016/j.mrrev.2023.108477] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Revised: 11/10/2023] [Accepted: 11/13/2023] [Indexed: 11/19/2023]
Abstract
BACKGROUND Head and neck cancer is the seventh most common malignancy globally. Head and neck squamous cell carcinoma (HNSCC) originates from squamous cells and 90% of HNC are HNSCC. The gold standard for diagnosing HNSCC is tissue biopsy. However, given tumour heterogeneity, biopsies may miss important cancer-associated molecular signatures, and more importantly, after the tumour is excised, there is no means of tracking response to treatment in patients. Captured under liquid biopsy, circulating tumour DNA (ctDNA), may identify in vivo molecular genotypes and complements tumour tissue analysis in cancer management. A systematic search was conducted in PubMed, Embase, Scopus and the Cochran Library between 2012 to early 2023 on ctDNA in HNSCC using publications written in English. We summarise 20 studies that compared mutational profiles between tumour tissue DNA (tDNA) and ctDNA, using a cohort of 631 HNSCC patients and 139 controls. Among these studies, the concordance rates varied greatly and the most mutated and the most concordant gene was TP53, followed by PIK3CA, CDKN2A, NOTCH1 and FAT1. Concordant variants were mainly found in Stage IV tumours, and the mutation type is mostly single nucleotide variants (SNV). We conclude that, as a biomarker for HNSCC, ctDNA demonstrates great promise as it recapitulates tumour genotypes, however additional multi-central trials are needed.
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Affiliation(s)
- Xiaomin Huang
- Saliva and Liquid Biopsy Translational Laboratory, Griffith Institute for Drug Discovery, The School of Environment and Science, Griffith University, Brisbane, QLD, Australia
| | - Paul Leo
- School of Biomedical Science, Faculty of Health, Queensland University of Technology, Brisbane, QLD, Australia; Center for Genomics and Personalised Health, Queensland University of Technology, Brisbane, QLD, Australia; Australian Translational Genomics Center, Brisbane, QLD, Australia
| | - Lee Jones
- QIMR Berghofer Medical Research Institute, Brisbane, QLD, Australia; Research Methods Group, School of Public Health and Social Work, Queensland University of Technology, Kelvin Grove, Brisbane, QLD, Australia
| | - Pascal H G Duijf
- School of Biomedical Science, Faculty of Health, Queensland University of Technology, Brisbane, QLD, Australia; Center for Genomics and Personalised Health, Queensland University of Technology, Brisbane, QLD, Australia; Centre for Cancer Biology, Clinical and Health Sciences, University of South Australia & SA Pathology, Adelaide, SA, Australia; Department of Medical Genetics, Oslo University Hospital, Norway; Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Norway
| | - Gunter Hartel
- QIMR Berghofer Medical Research Institute, Brisbane, QLD, Australia
| | - Lizbeth Kenny
- School of Medicine, University of Queensland, Brisbane, QLD, Australia; Cancer Care Service, Royal Brisbane Women's Hospital, Brisbane, QLD, Australia
| | - Sarju Vasani
- Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Norway; Department of Otolaryngology, Royal Brisbane Women's Hospital, Brisbane, QLD, Australia
| | - Chamindie Punyadeera
- Saliva and Liquid Biopsy Translational Laboratory, Griffith Institute for Drug Discovery, The School of Environment and Science, Griffith University, Brisbane, QLD, Australia; Menzies Health Institute Queensland, Griffith University, QLD, Australia.
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Zhou S, Chan C, Lau YC, Rulach R, Dyab H, Hendry F, Wilson C, Schipani S, Lamb C, Grose D, James A, Maxfield C, Dempsey MF, Paterson C. The Effects of Human Papillomavirus Status and Treatment on the Positive Predictive Value of Post-radiotherapy 18F-Fluorodeoxyglucose Positron Emission Tomography-Computed Tomography in Advanced Head and Neck Squamous Cell Carcinoma. Clin Oncol (R Coll Radiol) 2023; 35:e699-e707. [PMID: 37798198 DOI: 10.1016/j.clon.2023.09.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Revised: 07/03/2023] [Accepted: 09/18/2023] [Indexed: 10/07/2023]
Abstract
AIMS The high negative predictive value of post-chemoradiation (CRT) positron emission tomography-computed tomography (PET-CT) is well established in head and neck squamous cell cancers (HNSCC). The positive predictive value (PPV) remains under scrutiny, with increasing evidence that it is affected by several factors. The aim of this study was to assess the PPV of post-treatment PET-CT for residual nodal disease when stratified by treatment modality and tumour human papillomavirus (HPV) status. MATERIALS AND METHODS This was a retrospective cohort study in a tertiary oncology centre carried out between January 2013 and December 2019. Patients were radically treated with radiotherapy only/CRT for node-positive HNSCC. PET-CT nodal responses were categorised as complete, equivocal (EQR) or incomplete (ICR), and outcomes extracted from electronic records. RESULTS In total, 480 patients were evaluated, all had a minimum potential follow-up of 2 years, with a median of 39.2 months. The PPV of 12-week PET-CT was significantly different between HPV-positive (22.5%) and HPV-unrelated (52.7%) disease, P < 0.001. It was also significantly different between the CRT (24.8%) and radiotherapy-only (51.1%) groups, P = 0.001. The PPV of an EQR was significantly less than an ICR, irrespective of HPV status and primary treatment modality. In HPV-positive disease, the PPV of an EQR was 9.0% for the CRT group compared with 21.4% for radiotherapy only, P = 0.278. The PPV in those who achieved an ICR was 34.2% in the CRT group, significantly lower than 70.0% in the radiotherapy-only group, P = 0.03. CONCLUSION The PPV of 12-week PET-CT is significantly lower for HPV-positive compared with HPV-unrelated HNSCC. It is poorer in patients with HPV-positive disease treated with CRT compared with radiotherapy alone.
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Affiliation(s)
- S Zhou
- The Beatson West of Scotland Cancer Centre, Glasgow, UK
| | - C Chan
- University Hospital Ayr, Ayr, UK
| | - Y C Lau
- Royal Alexandra Hospital, Glasgow, UK
| | - R Rulach
- The Beatson West of Scotland Cancer Centre, Glasgow, UK
| | - H Dyab
- West of Scotland PET Centre, Gartnavel General Hospital, Glasgow, UK
| | - F Hendry
- West of Scotland PET Centre, Gartnavel General Hospital, Glasgow, UK
| | - C Wilson
- The Beatson West of Scotland Cancer Centre, Glasgow, UK
| | - S Schipani
- The Beatson West of Scotland Cancer Centre, Glasgow, UK
| | - C Lamb
- The Beatson West of Scotland Cancer Centre, Glasgow, UK
| | - D Grose
- The Beatson West of Scotland Cancer Centre, Glasgow, UK
| | - A James
- The Beatson West of Scotland Cancer Centre, Glasgow, UK
| | - C Maxfield
- West of Scotland PET Centre, Gartnavel General Hospital, Glasgow, UK
| | - M-F Dempsey
- West of Scotland PET Centre, Gartnavel General Hospital, Glasgow, UK
| | - C Paterson
- The Beatson West of Scotland Cancer Centre, Glasgow, UK.
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Li C, Shao J, Li P, Feng J, Li J, Wang C. Circulating tumor DNA as liquid biopsy in lung cancer: Biological characteristics and clinical integration. Cancer Lett 2023; 577:216365. [PMID: 37634743 DOI: 10.1016/j.canlet.2023.216365] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Revised: 08/22/2023] [Accepted: 08/23/2023] [Indexed: 08/29/2023]
Abstract
Lung cancer maintains high morbidity and mortality rate globally despite significant advancements in diagnosis and treatment in the era of precision medicine. Pathological analysis of tumor tissue, the current gold standard for lung cancer diagnosis, is intrusive and intrinsically confined to evaluating the limited amount of tissues that could be physically extracted. However, tissue biopsy has several limitations, including the invasiveness of the procedure and difficulty in obtaining samples for patients at advanced stages., there Additionally,has been no major breakthrough in tumor biomarkers with high specificity and sensitivity, particularly for early-stage lung cancer. Liquid biopsy has been considered a feasible auxiliary tool for tearly dianosis, evaluating treatment responses and monitoring prognosis of lung cancer. Circulating tumor DNA (ctDNA), an ideal biomarker of liquid biopsy, has emerged as one of the most reliable tools for monitoring tumor processes at molecular levels. Herein, this review focuses on tumor heterogeneity to elucidate the superiority of liquid biopsy and retrospectively discussdeciphersolution. We systematically elaborate ctDNA biological characteristics, introduce methods for ctDNA detection, and discuss the current role of plasma ctDNA in lung cancer management. Finally, we summarize the drawbacks of ctDNA analysis and highlight its potential clinical application in lung cancer.
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Affiliation(s)
- Changshu Li
- Department of Pulmonary and Critical Care Medicine, Med-X Center for Manufacturing, Frontiers Science Center for Disease-Related Molecular Network, State Key Laboratory of Respiratory Health and Multimorbidity, West China School of Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Jun Shao
- Department of Pulmonary and Critical Care Medicine, Med-X Center for Manufacturing, Frontiers Science Center for Disease-Related Molecular Network, State Key Laboratory of Respiratory Health and Multimorbidity, West China School of Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Peiyi Li
- Department of Anesthesiology, West China Hospital, Sichuan University, Chengdu, China
| | - Jiaming Feng
- West China School of Medicine, Sichuan University, Chengdu, China
| | - Jingwei Li
- Department of Pulmonary and Critical Care Medicine, Med-X Center for Manufacturing, Frontiers Science Center for Disease-Related Molecular Network, State Key Laboratory of Respiratory Health and Multimorbidity, West China School of Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Chengdi Wang
- Department of Pulmonary and Critical Care Medicine, Med-X Center for Manufacturing, Frontiers Science Center for Disease-Related Molecular Network, State Key Laboratory of Respiratory Health and Multimorbidity, West China School of Medicine, West China Hospital, Sichuan University, Chengdu, China.
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Cohen SE, Betancourt J, Soo Hoo GW. Pleural Uptake Patterns in F18Fluorodeoxyglucose-Positron Emission Tomography (FDG-PET) Scans Improve the Identification of Malignant Pleural Effusions. J Clin Med 2023; 12:6977. [PMID: 38002592 PMCID: PMC10672363 DOI: 10.3390/jcm12226977] [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: 09/09/2023] [Revised: 10/24/2023] [Accepted: 11/03/2023] [Indexed: 11/26/2023] Open
Abstract
BACKGROUND The confirmation of malignant pleural effusions (MPE) requires an invasive procedure. Diagnosis can be difficult and may require repeated thoracentesis or biopsies. F18Fluorodeoxyglucose-Positron Emission Tomography (FDG-PET) can characterize the extent of malignant involvement in areas of increased uptake. Patterns of uptake in the pleura may be sufficient to obviate the need for further invasive procedures. METHODS This is a retrospective review of patients with confirmed malignancy and suspected MPE. Patients who underwent diagnostic thoracentesis with cytology and contemporaneous FDG-PET were identified for analysis. Some underwent confirmatory pleural biopsy. The uptake pattern on FDG-PET underwent blinded review and was categorized based on the pattern of uptake. RESULTS One hundred consecutive patients with confirmed malignancy, suspected MPE and corresponding FDG-PET scans were reviewed. MPE was confirmed in 70 patients with positive pleural fluid cytology or tissue pathology. Of the remaining patients, 15 had negative cytopathology, 14 had atypical cells and 1 had reactive cells. Positive uptake on FDG-PET was noted in 76 patients. The concordance of malignant histology and positive FDG-PET occurred in 58 of 76 patients (76%). Combining histologically confirmed MPE with atypical cytology, positive pleural FDG-PET uptake had a positive predictive value of 91% for MPE. An encasement pattern had a 100% PPV for malignancy. CONCLUSION Positive FDG-PET pleural uptake represents an excellent method to identify MPE, especially in patients with an encasement pattern. This may eliminate the need for additional invasive procedures in some patients, even when initial pleural cytology is negative.
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Affiliation(s)
| | - Jaime Betancourt
- West Los Angeles Veterans Affairs Healthcare Center, VA Greater Los Angeles Healthcare System, Los Angeles, CA 90073, USA; (J.B.); (G.W.S.H.)
- David Geffen School of Medicine at UCLA, Los Angeles, CA 90024, USA
| | - Guy W. Soo Hoo
- West Los Angeles Veterans Affairs Healthcare Center, VA Greater Los Angeles Healthcare System, Los Angeles, CA 90073, USA; (J.B.); (G.W.S.H.)
- David Geffen School of Medicine at UCLA, Los Angeles, CA 90024, USA
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Zirakchian Zadeh M. Clinical Application of 18F-FDG-PET Quantification in Hematological Malignancies: Emphasizing Multiple Myeloma, Lymphoma and Chronic Lymphocytic Leukemia. CLINICAL LYMPHOMA, MYELOMA & LEUKEMIA 2023; 23:800-814. [PMID: 37558532 DOI: 10.1016/j.clml.2023.07.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 07/15/2023] [Accepted: 07/20/2023] [Indexed: 08/11/2023]
Abstract
Most hematological malignancies display heightened glycolytic activity, leading to their detectability through 18F-FDG-PET imaging. PET quantification enables the extraction of metabolic information from tumors. Among various PET measurements, maximum standardized uptake value (SUVmax), which indicates the highest value of 18F-FDG uptake within the tumor, has emerged as the commonly used parameter in clinical oncology. This is because of SUVmax ease of calculation using most available commercial workstations, as well as its simplicity and independence from observer interpretation. Nonetheless, SUVmax represents the increase in activity within a specific small area, which may not fully capture the overall tumor uptake. Volumetric PET parameters have been identified as a potential solution to overcome certain limitations associated with SUVmax. However, these parameters are influenced by the low spatial resolution of PET when assessing small lesions. Another challenge is the high number of lesions observed in some patients, leading to a time-consuming process for evaluating all focal lesions. Some institutions recently have started advocating for CT-based segmentation as a method for measuring radiotracer uptake in the bone marrow and overall bone of the patients. This review article aims to provide insights into clinical application of PET quantification specifically focusing on 3 major hematologic malignancies: multiple myeloma, lymphoma, and chronic lymphocytic leukemia.
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Affiliation(s)
- Mahdi Zirakchian Zadeh
- Molecular Imaging and Therapy and Interventional Radiology Services, Department of Radiology, Memorial Sloan Kettering Cancer Center, New York, NY.
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Lee S, Chung MJ, Ahn M, Park HJ, Wang EK, Guon T, Kee HJ, Ku CR, Na K. Surfactant-like photosensitizer for endoscopic duodenal ablation: Modulating meal-stimulated incretin hormones in obese and type 2 diabetes. Biomaterials 2023; 302:122336. [PMID: 37778055 DOI: 10.1016/j.biomaterials.2023.122336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Revised: 09/18/2023] [Accepted: 09/20/2023] [Indexed: 10/03/2023]
Abstract
Duodenal ablation improves glycaemic control and weight loss, so it has been applied using hydrothermal catheters in obese and type 2 diabetes patients, indicating similar mechanisms and therapeutic effects as bariatric surgeries. Endoscopic photodynamic therapy is an innovative procedure that easily accessible to endocrine or gastrointestinal organs, so it is critical for the sprayed photosensitizer (PS) to long-term interact with target tissues for enhancing its effects. Surfactant-like PS was more stable in a wide range of pH and 2.8-fold more retained in the duodenum at 1 h than hydrophilic PS due to its amphiphilic property. Endoscopic duodenal ablation using surfactant-like PS was performed in high fat diet induced rat models, demonstrating body weight loss, enhanced insulin sensitivity, and modulation of incretin hormones. Locoregional ablation of duodenum could affect the profiles of overall intestinal cells secreting meal-stimulated hormones and further the systemic glucose and lipid metabolism, regarding gut-brain axis. Our strategy suggests a potential for a treatment of minimally invasive bariatric and metabolic therapy if accompanied by detailed clinical trials.
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Affiliation(s)
- Sanghee Lee
- Department of Biotechnology, Department of Biomedical-Chemical Engineering, The Catholic University of Korea, 43 Jibong-ro, Wonmi-gu, Bucheon-si, Gyeonggi-do, 14662, Republic of Korea.
| | - Moon Jae Chung
- Division of Gastroenterology, Department of Internal Medicine, Yonsei University College of Medicine, Yonsei-ro 50-1, Seodaemun-gu, Seoul, 03722, Republic of Korea
| | - Minji Ahn
- Department of Biotechnology, Department of Biomedical-Chemical Engineering, The Catholic University of Korea, 43 Jibong-ro, Wonmi-gu, Bucheon-si, Gyeonggi-do, 14662, Republic of Korea
| | - Hyun Jin Park
- Division of Gastroenterology, Department of Internal Medicine, Yonsei University College of Medicine, Yonsei-ro 50-1, Seodaemun-gu, Seoul, 03722, Republic of Korea
| | - Eun Kyung Wang
- Endocrinology, Institute of Endocrine Research, Department of Internal Medicine, Yonsei University College of Medicine, Yonsei-ro 50-1, Seodaemun-gu, Seoul, 03722, Republic of Korea
| | - Taeeun Guon
- Division of Gastroenterology, Department of Internal Medicine, Yonsei University College of Medicine, Yonsei-ro 50-1, Seodaemun-gu, Seoul, 03722, Republic of Korea
| | - Hyun Jung Kee
- Division of Gastroenterology, Department of Internal Medicine, Yonsei University College of Medicine, Yonsei-ro 50-1, Seodaemun-gu, Seoul, 03722, Republic of Korea
| | - Cheol Ryong Ku
- Endocrinology, Institute of Endocrine Research, Department of Internal Medicine, Yonsei University College of Medicine, Yonsei-ro 50-1, Seodaemun-gu, Seoul, 03722, Republic of Korea.
| | - Kun Na
- Department of Biotechnology, Department of Biomedical-Chemical Engineering, The Catholic University of Korea, 43 Jibong-ro, Wonmi-gu, Bucheon-si, Gyeonggi-do, 14662, Republic of Korea.
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12
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Kostakoglu L, Martelli M, Sehn LH, Davies A, Trněný M, Herold M, Vitolo U, Hiddemann W, Trotman J, Knapp A, Mattiello F, Nielsen TG, Sahin D, Sellam G, Ward C, Younes A. A comparison of the prognostic performance of the Lugano 2014 and RECIL 2017 response criteria in patients with NHL from the phase III GOYA and GALLIUM trials. EJHAEM 2023; 4:1042-1051. [PMID: 38024624 PMCID: PMC10660391 DOI: 10.1002/jha2.796] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Revised: 09/07/2023] [Accepted: 09/08/2023] [Indexed: 12/01/2023]
Abstract
The Lugano 2014 criteria are the standard for response assessment in lymphoma. We compared the prognostic performance of Lugano 2014 and the more recently developed response evaluation criteria in lymphoma (RECIL 2017), which relies primarily on computed tomography and uses unidimensional measurements, in patients with previously untreated diffuse large B-cell lymphoma (DLBCL) and follicular lymphoma (FL) from the phase III GOYA and GALLIUM trials, respectively. Concordance between responses according to the Lugano 2014 and RECIL 2017 criteria was analyzed. Landmark analyses of progression-free survival (PFS) and overall survival (OS) by end of treatment (EOT) and end of induction (EOI) response status according to RECIL 2017 and Lugano 2014 criteria, and prognostic value of response at EOT/EOI were also compared. Overall, 1333 patients were included from GOYA and 502 from GALLIUM. Complete response (CR) status according to RECIL 2017 criteria showed high concordance with complete metabolic response (CMR) status by Lugano 2014 criteria in both GOYA (92.5%) and GALLIUM (92.4%). EOT and EOI CR/CMR status by both criteria was highly prognostic for PFS in GOYA (RECIL 2017 [CR]: hazard ratio [HR], 0.35 [95% confidence interval [CI] 0.26-0.46]; Lugano 2014 [CMR]: HR, 0.35 [95% CI 0.26-0.48]; both p < .0001) and GALLIUM (RECIL 2017 [CR]: HR, 0.35 [95% CI 0.23-0.53]; Lugano 2014 [CMR]: HR, 0.21 [95% CI 0.14-0.31]; both p < .0001). In conclusion, response categorization by RECIL 2017 is similar to that by Lugano 2014 criteria, with high concordance observed. Both were prognostic for PFS and OS.
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Affiliation(s)
- Lale Kostakoglu
- Department of Radiology and Medical ImagingUniversity of VirginiaCharlottesvilleVirginiaUSA
| | - Maurizio Martelli
- Hematology, Department of Translational and Precision MedicineSapienza UniversityRomeItaly
| | - Laurie H. Sehn
- BC Cancer Center for Lymphoid Cancer and the University of British ColumbiaVancouverBritish ColumbiaCanada
| | - Andrew Davies
- Cancer Research UK Centre/NIHR Experimental Cancer Medicine CentreUniversity of SouthamptonSouthamptonUK
| | - Marek Trněný
- 1st Faculty of MedicineCharles University General HospitalPragueCzech Republic
| | | | - Umberto Vitolo
- Medical Oncology, Candiolo Cancer Institute, FPO‐IRCCSCandioloItaly
| | | | - Judith Trotman
- Concord Repatriation General Hospital, University of SydneyConcordNew South WalesAustralia
| | | | | | | | | | | | - Carol Ward
- F. Hoffmann‐La Roche LtdBaselSwitzerland
| | - Anas Younes
- Memorial Sloan Kettering Cancer CenterNew York CityNew YorkUSA
- AstraZenecaNew YorkNew YorkUSA
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13
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Huang Y, Wang F, Lin X, Li Q, Lu Y, Zhang J, Shen X, Tan J, Qin Z, Chen J, Chen X, Pan G, Wang X, Zeng Y, Yang S, Liu J, Xing F, Li K, Zhang H. Nuclear VCP drives colorectal cancer progression by promoting fatty acid oxidation. Proc Natl Acad Sci U S A 2023; 120:e2221653120. [PMID: 37788309 PMCID: PMC10576098 DOI: 10.1073/pnas.2221653120] [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: 12/24/2022] [Accepted: 08/26/2023] [Indexed: 10/05/2023] Open
Abstract
Fatty acid oxidation (FAO) fuels many cancers. However, knowledge of pathways that drive FAO in cancer remains unclear. Here, we revealed that valosin-containing protein (VCP) upregulates FAO to promote colorectal cancer growth. Mechanistically, nuclear VCP binds to histone deacetylase 1 (HDAC1) and facilitates its degradation, thus promoting the transcription of FAO genes, including the rate-limiting enzyme carnitine palmitoyltransferase 1A (CPT1A). FAO is an alternative fuel for cancer cells in environments exhibiting limited glucose availability. We observed that a VCP inhibitor blocked the upregulation of FAO activity and CPT1A expression triggered by metformin in colorectal cancer (CRC) cells. Combined VCP inhibitor and metformin prove more effective than either agent alone in culture and in vivo. Our study illustrates the molecular mechanism underlying the regulation of FAO by nuclear VCP and demonstrates the potential therapeutic utility of VCP inhibitor and metformin combination treatment for colorectal cancer.
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Affiliation(s)
- Youwei Huang
- Department of Pharmacology, School of Medicine, Jinan University, Guangzhou510632, China
- Guangdong Provincial Key Laboratory of Tumor Interventional Diagnosis and Treatment, Zhuhai Institute of Translational Medicine, Zhuhai People’s Hospital Affiliated with Jinan University, Zhuhai519000, China
- Biomedical Translational Research Institute, Health Science Center (School of Medicine), Jinan University, Guangzhou510632, China
| | - Fang Wang
- Department of Pharmacology, School of Medicine, Jinan University, Guangzhou510632, China
| | - Xi Lin
- Department of Pharmacology, School of Medicine, Jinan University, Guangzhou510632, China
| | - Qing Li
- Department of Pharmacology, School of Medicine, Jinan University, Guangzhou510632, China
| | - Yuli Lu
- Department of Pharmacology, School of Medicine, Jinan University, Guangzhou510632, China
- Department of Public Health, Shantou Center for Disease Control and Prevention, Shantou515000, China
| | - Jiayu Zhang
- Guangdong Research Institute of Gastroenterology, The Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou510655, China
| | - Xi Shen
- Department of Pharmacology, School of Medicine, Jinan University, Guangzhou510632, China
| | - Jingyi Tan
- Biomedical Translational Research Institute, Health Science Center (School of Medicine), Jinan University, Guangzhou510632, China
| | - Zixi Qin
- Department of Pharmacology, School of Medicine, Jinan University, Guangzhou510632, China
| | - Jiahong Chen
- Department of Pharmacology, School of Medicine, Jinan University, Guangzhou510632, China
- Department of Pathophysiology, School of Basic Medical Sciences, Peking University, Beijing100191, China
| | - Xueqin Chen
- Department of Pharmacology, School of Medicine, Jinan University, Guangzhou510632, China
| | - Guopeng Pan
- Department of Pharmacology, School of Medicine, Jinan University, Guangzhou510632, China
| | - Xiangyu Wang
- Department of Pharmacology, School of Medicine, Jinan University, Guangzhou510632, China
| | - Yuequan Zeng
- Department of Pharmacology, School of Medicine, Jinan University, Guangzhou510632, China
| | - Shangqi Yang
- Department of Pharmacology, School of Medicine, Jinan University, Guangzhou510632, China
| | - Jun Liu
- Department of Pharmacology, School of Medicine, Jinan University, Guangzhou510632, China
| | - Fan Xing
- Medical Research Institute, Guangdong Provincial People’s Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou510080, China
| | - Kai Li
- Guangdong Research Institute of Gastroenterology, The Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou510655, China
| | - Haipeng Zhang
- Department of Pharmacology, School of Medicine, Jinan University, Guangzhou510632, China
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14
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Sachpekidis C, Enqvist O, Ulén J, Kopp-Schneider A, Pan L, Jauch A, Hajiyianni M, John L, Weinhold N, Sauer S, Goldschmidt H, Edenbrandt L, Dimitrakopoulou-Strauss A. Application of an artificial intelligence-based tool in [ 18F]FDG PET/CT for the assessment of bone marrow involvement in multiple myeloma. Eur J Nucl Med Mol Imaging 2023; 50:3697-3708. [PMID: 37493665 PMCID: PMC10547616 DOI: 10.1007/s00259-023-06339-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Accepted: 07/09/2023] [Indexed: 07/27/2023]
Abstract
PURPOSE [18F]FDG PET/CT is an imaging modality of high performance in multiple myeloma (MM). Nevertheless, the inter-observer reproducibility in PET/CT scan interpretation may be hampered by the different patterns of bone marrow (BM) infiltration in the disease. Although many approaches have been recently developed to address the issue of standardization, none can yet be considered a standard method in the interpretation of PET/CT. We herein aim to validate a novel three-dimensional deep learning-based tool on PET/CT images for automated assessment of the intensity of BM metabolism in MM patients. MATERIALS AND METHODS Whole-body [18F]FDG PET/CT scans of 35 consecutive, previously untreated MM patients were studied. All patients were investigated in the context of an open-label, multicenter, randomized, active-controlled, phase 3 trial (GMMG-HD7). Qualitative (visual) analysis classified the PET/CT scans into three groups based on the presence and number of focal [18F]FDG-avid lesions as well as the degree of diffuse [18F]FDG uptake in the BM. The proposed automated method for BM metabolism assessment is based on an initial CT-based segmentation of the skeleton, its transfer to the SUV PET images, the subsequent application of different SUV thresholds, and refinement of the resulting regions using postprocessing. In the present analysis, six different SUV thresholds (Approaches 1-6) were applied for the definition of pathological tracer uptake in the skeleton [Approach 1: liver SUVmedian × 1.1 (axial skeleton), gluteal muscles SUVmedian × 4 (extremities). Approach 2: liver SUVmedian × 1.5 (axial skeleton), gluteal muscles SUVmedian × 4 (extremities). Approach 3: liver SUVmedian × 2 (axial skeleton), gluteal muscles SUVmedian × 4 (extremities). Approach 4: ≥ 2.5. Approach 5: ≥ 2.5 (axial skeleton), ≥ 2.0 (extremities). Approach 6: SUVmax liver]. Using the resulting masks, subsequent calculations of the whole-body metabolic tumor volume (MTV) and total lesion glycolysis (TLG) in each patient were performed. A correlation analysis was performed between the automated PET values and the results of the visual PET/CT analysis as well as the histopathological, cytogenetical, and clinical data of the patients. RESULTS BM segmentation and calculation of MTV and TLG after the application of the deep learning tool were feasible in all patients. A significant positive correlation (p < 0.05) was observed between the results of the visual analysis of the PET/CT scans for the three patient groups and the MTV and TLG values after the employment of all six [18F]FDG uptake thresholds. In addition, there were significant differences between the three patient groups with regard to their MTV and TLG values for all applied thresholds of pathological tracer uptake. Furthermore, we could demonstrate a significant, moderate, positive correlation of BM plasma cell infiltration and plasma levels of β2-microglobulin with the automated quantitative PET/CT parameters MTV and TLG after utilization of Approaches 1, 2, 4, and 5. CONCLUSIONS The automated, volumetric, whole-body PET/CT assessment of the BM metabolic activity in MM is feasible with the herein applied method and correlates with clinically relevant parameters in the disease. This methodology offers a potentially reliable tool in the direction of optimization and standardization of PET/CT interpretation in MM. Based on the present promising findings, the deep learning-based approach will be further evaluated in future prospective studies with larger patient cohorts.
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Affiliation(s)
- Christos Sachpekidis
- Clinical Cooperation Unit Nuclear Medicine, German Cancer Research Center (DKFZ), Im Neuenheimer Feld 280, 69210, Heidelberg, Germany.
| | - Olof Enqvist
- Eigenvision AB, Malmö, Sweden
- Department of Electrical Engineering, Chalmers University of Technology, Gothenburg, Sweden
| | | | | | - Leyun Pan
- Clinical Cooperation Unit Nuclear Medicine, German Cancer Research Center (DKFZ), Im Neuenheimer Feld 280, 69210, Heidelberg, Germany
| | - Anna Jauch
- Institute of Human Genetics, University of Heidelberg, Heidelberg, Germany
| | - Marina Hajiyianni
- Department of Internal Medicine V, University Hospital Heidelberg and National Center for Tumor Diseases (NCT), Heidelberg, Germany
| | - Lukas John
- Department of Internal Medicine V, University Hospital Heidelberg and National Center for Tumor Diseases (NCT), Heidelberg, Germany
| | - Niels Weinhold
- Department of Internal Medicine V, University Hospital Heidelberg and National Center for Tumor Diseases (NCT), Heidelberg, Germany
| | - Sandra Sauer
- Department of Internal Medicine V, University Hospital Heidelberg and National Center for Tumor Diseases (NCT), Heidelberg, Germany
| | - Hartmut Goldschmidt
- Department of Internal Medicine V, University Hospital Heidelberg and National Center for Tumor Diseases (NCT), Heidelberg, Germany
| | - Lars Edenbrandt
- Department of Clinical Physiology, Region Västra Götaland, Sahlgrenska University Hospital, Gothenburg, Sweden
- Department of Molecular and Clinical Medicine, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Antonia Dimitrakopoulou-Strauss
- Clinical Cooperation Unit Nuclear Medicine, German Cancer Research Center (DKFZ), Im Neuenheimer Feld 280, 69210, Heidelberg, Germany
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15
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Casutt A, Lamoth F, Lortholary O, Prior JO, Tonglet A, Manuel O, Bergeron A, Beigelman-Aubry C. Atypical imaging patterns during lung invasive mould diseases: lessons for clinicians. Eur Respir Rev 2023; 32:230086. [PMID: 37758271 PMCID: PMC10523149 DOI: 10.1183/16000617.0086-2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2023] [Accepted: 07/13/2023] [Indexed: 09/30/2023] Open
Abstract
Imaging of pulmonary invasive mould diseases (IMDs), which represents a cornerstone in their work-up, is mainly based on computed tomography (CT). The purpose of this review is to discuss their CT features, mainly those related to aspergillosis and mucormycosis. We will especially focus on atypical radiological presentations that are increasingly observed among non-neutropenic emerging populations of patients at risk, such as those receiving novel anticancer therapies or those in the intensive care unit. We will also discuss the interest of other available imaging techniques, mainly positron emission tomography/CT, that may play a role in the diagnosis as well as evaluation of disease extent and follow-up. We will show that any new airway-centred abnormality or caveated lesion should evoke IMDs in mildly immunocompromised hosts. Limitations in their recognition may be due to potential underlying abnormalities that increase the complexity of interpretation of lung imaging, as well as the non-specificity of imaging features. In this way, the differentials of all morphological/metabolic aspects must be kept in mind for the optimal management of patients, as well as the benefit of evaluation of the vascular status.
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Affiliation(s)
- Alessio Casutt
- Division of Pulmonology, Lausanne University Hospital (CHUV) and University of Lausanne (UNIL), Lausanne, Switzerland
- Division of Pulmonology, Ospedale Regionale di Lugano, Ente Ospedaliero Cantonale (EOC), Lugano, Switzerland
| | - Frédéric Lamoth
- Infectious Diseases Service, Department of Medicine, Lausanne University Hospital (CHUV) and University of Lausanne (UNIL), Lausanne, Switzerland
- Institute of Microbiology, Department of Laboratories, Lausanne University Hospital (CHUV) and University of Lausanne (UNIL), Lausanne, Switzerland
| | - Olivier Lortholary
- University Paris Cité, Necker Enfants Malades University Hospital, AP-HP, IHU Imagine, Paris, France
- Institut Pasteur, National Reference Center for Invasive Mycoses and Antifungals, Paris, France
| | - John O Prior
- Department of Nuclear Medicine and Molecular Imaging, Lausanne University Hospital (CHUV), Lausanne, Switzerland
| | - Andrea Tonglet
- Department of Diagnostic and Interventional Radiology, Lausanne University Hospital (CHUV), Lausanne, Switzerland
| | - Oriol Manuel
- Infectious Diseases Service, Department of Medicine, Lausanne University Hospital (CHUV) and University of Lausanne (UNIL), Lausanne, Switzerland
- Transplantation Center, Lausanne University Hospital (CHUV) and University of Lausanne (UNIL), Lausanne, Switzerland
| | - Anne Bergeron
- Department of Pulmonology, Geneva University Hospital, University of Geneva, Geneva, Switzerland
- A. Bergeron and C. Beigelman-Aubry contributed equally to this work
| | - Catherine Beigelman-Aubry
- Department of Diagnostic and Interventional Radiology, Lausanne University Hospital (CHUV), Lausanne, Switzerland
- A. Bergeron and C. Beigelman-Aubry contributed equally to this work
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16
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Karimi A, Jafari‐Koshki T, Zehtabi M, Kargar F, Gheit T. Predictive impact of human papillomavirus circulating tumor DNA in treatment response monitoring of HPV-associated cancers; a meta-analysis on recurrent event endpoints. Cancer Med 2023; 12:17592-17602. [PMID: 37492996 PMCID: PMC10524070 DOI: 10.1002/cam4.6377] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2023] [Revised: 07/05/2023] [Accepted: 07/13/2023] [Indexed: 07/27/2023] Open
Abstract
BACKGROUND HPV infection can cause cancer, and standard treatments often result in recurrence. The extent to which liquid biopsy using HPV circulating tumor DNA (HPV ctDNA) can be used as a promising marker for predicting recurrence in HPV-related cancers remains to be validated. Here we conducted a systematic review and meta-analysis to assess its effectiveness in predicting treatment response. METHODS We conducted a systematic literature search of online databases, including PubMed, Embase, Scopus, and the Cochrane Library, up to December 2022. The goal was to identify survival studies that evaluated the potential of plasma HPV ctDNA at baseline and end-of-treatment (EoT) in predicting recurrence of related cancers. Hazard ratios were estimated directly from models or extracted from Kaplan-Meier plots. RESULTS The pooled effect of HPV ctDNA presence on disease recurrence was estimated to be HR = 7.97 (95% CI: [3.74, 17.01]). Subgroup analysis showed that the risk of recurrence was HR = 2.17 (95% CI: [1.07, 4.41]) for baseline-positive cases and HR = 13.21 (95% CI: [6.62, 26.36]) for EoT-positive cases. Significant associations were also observed between recurrence of oropharyngeal squamous cell carcinoma (HR = 12.25 (95% CI: [2.62, 57.36])) and cervical cancer (HR = 4.60 (95% CI: [2.08, 10.17])) in plasma HPV ctDNA-positive patients. CONCLUSIONS The study found that HPV ctDNA detection can predict the rate of relapse or recurrence after treatment, with post-treatment measurement being more effective than baseline assessment. HPV ctDNA could be used as a surrogate or incorporated with other methods for detecting residual disease.
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Affiliation(s)
- Abbas Karimi
- Department of Molecular Medicine, Faculty of Advanced Medical SciencesTabriz University of Medical SciencesTabrizIran
| | - Tohid Jafari‐Koshki
- Department of Statistics and Epidemiology, Faculty of HealthTabriz University of Medical SciencesTabrizIran
| | - Mojtaba Zehtabi
- Hematology and Oncology Research CenterTabriz University of Medical SciencesTabrizIran
| | - Farzaneh Kargar
- Department of Medical Biotechnology, Faculty of Medical SchoolTabriz University of Medical SciencesTabrizIran
| | - Tarik Gheit
- Epigenomics and Mechanisms Branch, International Agency for Research on Cancer (IARC)LyonFrance
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17
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Wang S, Di S, Lu J, Xie S, Yu Z, Liang Y, Gong T. 18 F-FDG PET/CT predicts the role of neoadjuvant immunochemotherapy in the pathological response of esophageal squamous cell carcinoma. Thorac Cancer 2023; 14:2338-2349. [PMID: 37424279 PMCID: PMC10447171 DOI: 10.1111/1759-7714.15024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Revised: 06/17/2023] [Accepted: 06/19/2023] [Indexed: 07/11/2023] Open
Abstract
BACKGROUND This study aimed to investigate the predictive value of 18 F-FDG PET/CT for pathological response after neoadjuvant immunochemotherapy (NICT) in patients with esophageal squamous cell carcinoma (ESCC). METHODS The clinical data of 54 patients with ESCC who underwent two cycles of NICT followed by surgery were retrospectively analyzed. NICT consisted of PD-1 blockade therapy combined with chemotherapy. 18 F-FDG PET/CT scans were performed before and after NICT. The pathological results after surgery were used to assess the degree of pathological response. The scan parameters of 18 F-FDG PET/CT and their changes before and after NICT were compared with the pathological response. RESULTS Among the 54 patients, 10 (18.5%) achieved complete pathological response (pCR) and 21 (38.9%) achieved major pathological response (MPR). The post-NICT scan parameters and their changes were significantly associated with the pathological response. In addition, the values of the changes in the scanned parameters before and after treatment can further predict the pathological response of the patient. CONCLUSION 18 F-FDG PET/CT is a useful tool to evaluate the efficacy of NICT and predict pathological response in patients with ESCC. The post-NICT scan parameters and their changes can help identify patients who are likely to achieve pCR or MPR.
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Affiliation(s)
- Shuohua Wang
- Department of Thoracic SurgeryNavy Clinical College, Anhui Medical UniversityHefeiChina
- Department of Thoracic SurgeryThe Fifth School of Clinical Medicine, Anhui Medical UniversityHefeiChina
| | - Shouyin Di
- Department of Thoracic SurgeryThe Sixth Medical Center of Chinese PLA General HospitalBeijingChina
| | - Jing Lu
- Department of Thoracic SurgeryThe Sixth Medical Center of Chinese PLA General HospitalBeijingChina
| | - Shun Xie
- Department of Thoracic SurgeryNavy Clinical College, Anhui Medical UniversityHefeiChina
- Department of Thoracic SurgeryThe Fifth School of Clinical Medicine, Anhui Medical UniversityHefeiChina
| | - Zhenyang Yu
- Department of PathologyThe Sixth Medical Center of Chinese PLA General HospitalBeijingChina
| | - Yingkui Liang
- Department of Nuclear MedicineThe Sixth Medical Center of Chinese PLA General HospitalBeijingChina
| | - Taiqian Gong
- Department of Thoracic SurgeryNavy Clinical College, Anhui Medical UniversityHefeiChina
- Department of Thoracic SurgeryThe Fifth School of Clinical Medicine, Anhui Medical UniversityHefeiChina
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18
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Mannes PZ, Barnes CE, Latoche JD, Day KE, Nedrow JR, Lee JS, Tavakoli S. 2-deoxy-2-[ 18F]fluoro-D-glucose Positron Emission Tomography to Monitor Lung Inflammation and Therapeutic Response to Dexamethasone in a Murine Model of Acute Lung Injury. Mol Imaging Biol 2023; 25:681-691. [PMID: 36941514 PMCID: PMC10027262 DOI: 10.1007/s11307-023-01813-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Revised: 01/30/2023] [Accepted: 03/07/2023] [Indexed: 03/23/2023]
Abstract
PURPOSE To image inflammation and monitor therapeutic response to anti-inflammatory intervention using 2-deoxy-2-[18F]fluoro-D-glucose ([18F]FDG) positron emission tomography (PET) in a preclinical model of acute lung injury (ALI). PROCEDURES Mice were intratracheally administered lipopolysaccharide (LPS, 2.5 mg/kg) to induce ALI or phosphate-buffered saline as the vehicle control. A subset of mice in the ALI group received two intraperitoneal doses of dexamethasone 1 and 24 h after LPS. [18F]FDG PET/CT was performed 2 days after the induction of ALI. [18F]FDG uptake in the lungs was quantified by PET (%ID/mLmean and standardized uptake value (SUVmean)) and ex vivo γ-counting (%ID/g). The severity of lung inflammation was determined by quantifying the protein level of inflammatory cytokines/chemokines and the activity of neutrophil elastase and glycolytic enzymes. In separate groups of mice, flow cytometry was performed to estimate the contribution of individual immune cell types to the total pulmonary inflammatory cell burden under different treatment conditions. RESULTS Lung uptake of [18F]FDG was significantly increased during LPS-induced ALI, and a decreased [18F]FDG uptake was observed following dexamethasone treatment to an intermediate level between that of LPS-treated and control mice. Protein expression of inflammatory biomarkers and the activity of neutrophil elastase and glycolytic enzymes were increased in the lungs of LPS-treated mice versus those of control mice, and correlated with [18F]FDG uptake. Furthermore, dexamethasone-induced decreases in cytokine/chemokine protein levels and enzyme activities correlated with [18F]FDG uptake. Neutrophils were the most abundant cells in LPS-induced ALI, and the pattern of total cell burden during ALI with or without dexamethasone therapy mirrored that of [18F]FDG uptake. CONCLUSIONS [18F]FDG PET noninvasively detects lung inflammation in ALI and its response to anti-inflammatory therapy in a preclinical model. However, high [18F]FDG uptake by bone, brown fat, and myocardium remains a technical limitation for quantification of [18F]FDG in the lungs.
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Affiliation(s)
- Philip Z Mannes
- Department of Radiology, University of Pittsburgh, Pittsburgh, PA, USA
- Medical Scientist Training Program, University of Pittsburgh, Pittsburgh, PA, USA
| | - Clayton E Barnes
- Department of Radiology, University of Pittsburgh, Pittsburgh, PA, USA
| | - Joseph D Latoche
- Department of Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | - Kathryn E Day
- Department of Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | - Jessie R Nedrow
- Department of Radiology, University of Pittsburgh, Pittsburgh, PA, USA
- Department of Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | - Janet S Lee
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | - Sina Tavakoli
- Department of Radiology, University of Pittsburgh, Pittsburgh, PA, USA.
- Department of Medicine, University of Pittsburgh, Pittsburgh, PA, USA.
- Heart, Lung, Blood, and Vascular Medicine Institute, University of Pittsburgh Medical Center, Pittsburgh, PA, USA.
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Cohen SA, Liu MC, Aleshin A. Practical recommendations for using ctDNA in clinical decision making. Nature 2023; 619:259-268. [PMID: 37438589 DOI: 10.1038/s41586-023-06225-y] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Accepted: 05/16/2023] [Indexed: 07/14/2023]
Abstract
The continuous improvement in cancer care over the past decade has led to a gradual decrease in cancer-related deaths. This is largely attributed to improved treatment and disease management strategies. Early detection of recurrence using blood-based biomarkers such as circulating tumour DNA (ctDNA) is being increasingly used in clinical practice. Emerging real-world data shows the utility of ctDNA in detecting molecular residual disease and in treatment-response monitoring, helping clinicians to optimize treatment and surveillance strategies. Many studies have indicated ctDNA to be a sensitive and specific biomarker for recurrence. However, most of these studies are largely observational or anecdotal in nature, and peer-reviewed data regarding the use of ctDNA are mainly indication-specific. Here we provide general recommendations on the clinical utility of ctDNA and how to interpret ctDNA analysis in different treatment settings, especially in patients with solid tumours. Specifically, we provide an understanding around the implications, strengths and limitations of this novel biomarker and how to best apply the results in clinical practice.
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Affiliation(s)
- Stacey A Cohen
- Fred Hutchinson Cancer Center, Seattle, WA, USA.
- University of Washington, Seattle, WA, USA.
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McLean-Thomas L, Gao D, Trenbeath Z, Cost CR, Milgrom SA. Equivocal end-of-therapy imaging findings do not predict a higher risk of local relapse after definitive radiotherapy in pediatric Ewing sarcoma and rhabdomyosarcoma. Pediatr Blood Cancer 2023; 70:e29989. [PMID: 36726177 DOI: 10.1002/pbc.29989] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Revised: 08/17/2022] [Accepted: 08/21/2022] [Indexed: 02/03/2023]
Abstract
BACKGROUND Posttherapy imaging studies can provide reassurance or induce anxiety regarding risk of recurrence for patients and their families. In some cases, it is difficult to determine if imaging findings represent posttreatment changes or residual disease. Equivocal radiographic findings can occur due to therapy-related inflammation or residual, inactive soft tissue masses, but it is unknown if such findings indicate an increased likelihood of local recurrence. The aim of this study was to assess the value of initial posttherapy scans for predicting local relapse in patients with Ewing sarcoma (EWS) or rhabdomyosarcoma (RMS) who received radiotherapy (RT) for local control. These findings are critical to inform clinicians' surveillance recommendations and ability to accurately counsel patients and their families. PROCEDURE The primary endpoint was time to local progression (LP). Patients were classified as having posttherapy scans that were "positive" (residual disease within the RT field), "negative" (no evidence of residual disease within the RT field), or "equivocal" (no determination could be made). The value of initial posttreatment scans for predicting LP was assessed using positive predictive value (PPV) and negative predictive value (NPV). RESULTS Negative imaging findings (n = 51) had an NPV of 88%, and positive imaging findings (n = 1) had a PPV of 100%. When equivocal findings (n = 16) were categorized with negative results (i.e., positive vs. equivocal/negative), the NPV was 90%. When equivocal findings were categorized with positive results (equivocal/positive vs. negative), the PPV was 12%. CONCLUSION Equivocal findings within the RT field on end-of-therapy imaging studies indicate no higher risk of local recurrence than negative findings. These results may contribute to appropriate surveillance schedules and accurate counseling of patients with RMS and EWS who have received RT for local control.
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Affiliation(s)
- Lorna McLean-Thomas
- Department of Radiation Oncology, University of Colorado School of Medicine, Aurora, Colorado, USA
| | - Dexiang Gao
- Cancer Center Biostatistics Core, University of Colorado School of Medicine, Aurora, Colorado, USA
| | - Zachary Trenbeath
- Department of Radiology, University of Colorado School of Medicine, Aurora, Colorado, USA
| | - Carrye R Cost
- Department of Pediatrics, University of Colorado School of Medicine, Aurora, Colorado, USA
| | - Sarah A Milgrom
- Department of Radiation Oncology, University of Colorado School of Medicine, Aurora, Colorado, USA
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Jiang Y, Wu Q, Hou M, Hai W, Zhang M, Li B, Zhang C. pH-sensitive gold nanoclusters labeling with radiometallic nuclides for diagnosis and treatment of tumor. Mater Today Bio 2023; 19:100578. [PMID: 36880082 PMCID: PMC9984684 DOI: 10.1016/j.mtbio.2023.100578] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Revised: 02/02/2023] [Accepted: 02/07/2023] [Indexed: 02/11/2023] Open
Abstract
The acidic microenvironment is one of the remarkable features of tumor and is also a reliable target for tumor theranostics. Ultrasmall gold nanoclusters (AuNCs) have good in vivo behaviors, such as non-retention in liver and spleen, renal clearance, and high tumor permeability, and held great potential for developing novel radiopharmaceuticals. Herein, we developed pH-sensitive ultrasmall gold nanoclusters by introducing quaternary ammonium group (TMA) or tertiary amine motifs (C6A) onto glutathione-coated AuNCs (TMA/GSH@AuNCs, C6A-GSH@AuNCs). Density functional theory simulation revealed that radiometal 89Sr, 223Ra, 44Sc, 90Y, 177Lu, 89Zr, 99mTc, 188Re, 106Rh, 64Cu, 68Ga, and 113Sn could stably dope into AuNCs. Both TMA/GSH@AuNCs and C6A-GSH@AuNCs could assemble into large clusters responding to mild acid condition, with C6A-GSH@AuNCs being more effective. To assess their performance for tumor detection and therapy, TMA/GSH@AuNCs and C6A-GSH@AuNCs were labeled with 68Ga, 64Cu, 89Zr and 89Sr, respectively. PET imaging of 4T1 tumor-bearing mice revealed TMA/GSH@AuNCs and C6A-GSH@AuNCs were mainly cleared through kidney, and C6A-GSH@AuNCs accumulated in tumors more efficiently. As a result, 89Sr-labeled C6A-GSH@AuNCs eradicated both the primary tumors and their lung metastases. Therefore, our study suggested that GSH-coated AuNCs held great promise for developing novel radiopharmaceuticals that specifically target the tumor acidic microenvironment for tumor diagnosis and treatments.
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22
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Ong W, Zhu L, Tan YL, Teo EC, Tan JH, Kumar N, Vellayappan BA, Ooi BC, Quek ST, Makmur A, Hallinan JTPD. Application of Machine Learning for Differentiating Bone Malignancy on Imaging: A Systematic Review. Cancers (Basel) 2023; 15:cancers15061837. [PMID: 36980722 PMCID: PMC10047175 DOI: 10.3390/cancers15061837] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Revised: 03/07/2023] [Accepted: 03/16/2023] [Indexed: 03/22/2023] Open
Abstract
An accurate diagnosis of bone tumours on imaging is crucial for appropriate and successful treatment. The advent of Artificial intelligence (AI) and machine learning methods to characterize and assess bone tumours on various imaging modalities may assist in the diagnostic workflow. The purpose of this review article is to summarise the most recent evidence for AI techniques using imaging for differentiating benign from malignant lesions, the characterization of various malignant bone lesions, and their potential clinical application. A systematic search through electronic databases (PubMed, MEDLINE, Web of Science, and clinicaltrials.gov) was conducted according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. A total of 34 articles were retrieved from the databases and the key findings were compiled and summarised. A total of 34 articles reported the use of AI techniques to distinguish between benign vs. malignant bone lesions, of which 12 (35.3%) focused on radiographs, 12 (35.3%) on MRI, 5 (14.7%) on CT and 5 (14.7%) on PET/CT. The overall reported accuracy, sensitivity, and specificity of AI in distinguishing between benign vs. malignant bone lesions ranges from 0.44–0.99, 0.63–1.00, and 0.73–0.96, respectively, with AUCs of 0.73–0.96. In conclusion, the use of AI to discriminate bone lesions on imaging has achieved a relatively good performance in various imaging modalities, with high sensitivity, specificity, and accuracy for distinguishing between benign vs. malignant lesions in several cohort studies. However, further research is necessary to test the clinical performance of these algorithms before they can be facilitated and integrated into routine clinical practice.
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Affiliation(s)
- Wilson Ong
- Department of Diagnostic Imaging, National University Hospital, 5 Lower Kent Ridge Rd, Singapore 119074, Singapore
- Correspondence: ; Tel.: +65-67725207
| | - Lei Zhu
- Department of Computer Science, School of Computing, National University of Singapore, 13 Computing Drive, Singapore 117417, Singapore
| | - Yi Liang Tan
- Department of Diagnostic Imaging, National University Hospital, 5 Lower Kent Ridge Rd, Singapore 119074, Singapore
| | - Ee Chin Teo
- Department of Diagnostic Imaging, National University Hospital, 5 Lower Kent Ridge Rd, Singapore 119074, Singapore
| | - Jiong Hao Tan
- University Spine Centre, Department of Orthopaedic Surgery, National University Health System, 1E, Lower Kent Ridge Road, Singapore 119228, Singapore
| | - Naresh Kumar
- University Spine Centre, Department of Orthopaedic Surgery, National University Health System, 1E, Lower Kent Ridge Road, Singapore 119228, Singapore
| | - Balamurugan A. Vellayappan
- Department of Radiation Oncology, National University Cancer Institute Singapore, National University Hospital, 5 Lower Kent Ridge Road, Singapore 119074, Singapore
| | - Beng Chin Ooi
- Department of Computer Science, School of Computing, National University of Singapore, 13 Computing Drive, Singapore 117417, Singapore
| | - Swee Tian Quek
- Department of Diagnostic Imaging, National University Hospital, 5 Lower Kent Ridge Rd, Singapore 119074, Singapore
- Department of Diagnostic Radiology, Yong Loo Lin School of Medicine, National University of Singapore, 10 Medical Drive, Singapore 117597, Singapore
| | - Andrew Makmur
- Department of Diagnostic Imaging, National University Hospital, 5 Lower Kent Ridge Rd, Singapore 119074, Singapore
- Department of Diagnostic Radiology, Yong Loo Lin School of Medicine, National University of Singapore, 10 Medical Drive, Singapore 117597, Singapore
| | - James Thomas Patrick Decourcy Hallinan
- Department of Diagnostic Imaging, National University Hospital, 5 Lower Kent Ridge Rd, Singapore 119074, Singapore
- Department of Diagnostic Radiology, Yong Loo Lin School of Medicine, National University of Singapore, 10 Medical Drive, Singapore 117597, Singapore
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Philip B, Jain A, Wojtowicz M, Khan I, Voller C, Patel RSK, Elmahdi D, Harky A. Current investigative modalities for detecting and staging lung cancers: a comprehensive summary. Indian J Thorac Cardiovasc Surg 2023; 39:42-52. [PMID: 36590039 PMCID: PMC9794670 DOI: 10.1007/s12055-022-01430-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Revised: 10/06/2022] [Accepted: 10/13/2022] [Indexed: 12/05/2022] Open
Abstract
This narrative review compares the advantages and drawbacks of imaging and other investigation modalities which currently assist with lung cancer diagnosis and staging, as well as those which are not routinely indicated for this. We examine plain film radiography, computed tomography (CT) (alone, as well as in conjunction with positron emission tomography (PET)), magnetic resonance imaging (MRI), ultrasound, and newer techniques such as image-guided bronchoscopy (IGB) and robotic bronchoscopy (RB). While a chest X-ray is the first-line imaging investigation in patients presenting with symptoms suggestive of lung cancer, it has a high positive predictive value (PPV) even after negative X-ray findings, which calls into question its value as part of a potential national screening programme. CT lowers the mortality for high-risk patients when compared to X-ray and certain scoring systems, such as the Brock model can guide the need for further imaging, like PET-CT, which has high sensitivity and specificity for diagnosing solitary pulmonary nodules as malignant, as well as for assessing small cell lung cancer spread. In practice, PET-CT is offered to everyone whose lung cancer is to be treated with a curative intent. In contrast, MRI is only recommended for isolated distant metastases. Similarly, ultrasound imaging is not used for diagnosis of lung cancer but can be useful when there is suspicion of intrathoracic lymph node involvement. Ultrasound imaging in the form of endobronchial ultrasonography (EBUS) is often used to aid tissue sampling, yet the diagnostic value of this technique varies widely between studies. RB is another novel technique that offers an alternative way to biopsy lesions, but further research on it is necessary. Lastly, thoracic surgical biopsies, particularly minimally invasive video-assisted techniques, have been used increasingly to aid in diagnosis and staging.
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Affiliation(s)
- Bejoy Philip
- Department of Cardiothoracic Surgery, Liverpool Heart and Chest Hospital, Liverpool, L14 3PE UK
| | - Anchal Jain
- Department of Cardiothoracic Surgery, Royal Stoke University Hospital, Stoke-on-Trent, UK
| | | | - Inayat Khan
- Department of Medicine, Royal Sussex County Hospital, Brighton, UK
| | - Calum Voller
- School of Medicine, University of Liverpool, Liverpool, UK
| | | | - Darbi Elmahdi
- School of Medicine, University of Central Lancashire, Preston, UK
| | - Amer Harky
- Department of Cardiothoracic Surgery, Liverpool Heart and Chest Hospital, Liverpool, L14 3PE UK
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Bentick G, Fairley J, Nadesapillai S, Wicks I, Day J. Defining the clinical utility of PET or PET-CT in idiopathic inflammatory myopathies: A systematic literature review. Semin Arthritis Rheum 2022; 57:152107. [DOI: 10.1016/j.semarthrit.2022.152107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Revised: 09/22/2022] [Accepted: 10/12/2022] [Indexed: 11/19/2022]
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Nougaret S, Sadowski E, Lakhman Y, Rousset P, Lahaye M, Worley M, Sgarbura O, Shinagare AB. The BUMPy road of peritoneal metastases in ovarian cancer. Diagn Interv Imaging 2022; 103:448-459. [PMID: 36155744 DOI: 10.1016/j.diii.2022.05.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Revised: 04/27/2022] [Accepted: 05/10/2022] [Indexed: 11/17/2022]
Abstract
Ovarian cancer is the most common cause of death due to gynecologic malignancies, with more than 70% of patients presenting with advanced stage disease at the time of diagnosis. The extent and distribution of tumor guide primary treatment selection and clinical management. While primary cytoreductive surgery with complete tumor resection improves survival, patients with extensive peritoneal disease may benefit from neoadjuvant chemotherapy first to reduce tumor burden followed by interval cytoreductive surgery. Imaging plays an essential role in triaging patients including selecting patients who may benefit from neoadjuvant chemotherapy before cytoreductive surgery. Interestingly, there are no universally established criteria to predict resectability and local practices depend on local guidelines and surgeon preferences. Nevertheless, certain anatomical tumor locations are known to be difficult to resect and are associated with suboptimal cytoreduction or require special surgical considerations. This review discusses the recent advances in the initial management of patients with ovarian cancer, a practical approach to the assessment and communication of peritoneal metastases locations on CT and MRI. It also explores recent advances in genomics profiling and radiomics that may influence the initial management of these patients.
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Affiliation(s)
- Stephanie Nougaret
- Department of Radiology, IRCM, Montpellier Cancer Research Institute, 34090 Montpellier, France; INSERM, U1194, University of Montpellier, 34295 Montpellier, France.
| | - Elizabeth Sadowski
- Departments of Radiology, Obstetrics and Gynecology, University of Wisconsin, WI 53726, United States
| | - Yulia Lakhman
- Department of Radiology, Memorial Sloan Kettering Cancer Center, New York, NY 10065, United States
| | - Pascal Rousset
- Department of Radiology, Centre Hospitalier Lyon-Sud, Pierre-Benite 69495, France
| | - Max Lahaye
- Department of Radiology, Antoni van Leeuwenhoek-Netherlands Cancer Institute, 1066 CX, Amsterdam, the Netherlands
| | - Michael Worley
- Department of Surgery, Dana-Farber Cancer Institute, Boston, MA 02115, United States
| | - Olivia Sgarbura
- IRCM, Institut de Recherche en Cancérologie de Montpellier, INSERM U1194, Université de Montpellier, Institut régional du Cancer de Montpellier, Montpellier, F-34298, France; Department of Surgical Oncology, Cancer Institute Montpellier (ICM), University of Montpellier, Montpellier, France
| | - Atul B Shinagare
- Department of Imaging, Dana-Farber Cancer Institute, Boston, MA 02215, United States; Department of Radiology, Brigham and Women's Hospital, Boston, MA 02115, United States
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PET/MR imaging in gynecologic cancer: tips for differentiating normal gynecologic anatomy and benign pathology versus cancer. Abdom Radiol (NY) 2022; 47:3189-3204. [PMID: 34687323 DOI: 10.1007/s00261-021-03264-9] [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: 04/30/2021] [Revised: 08/24/2021] [Accepted: 08/25/2021] [Indexed: 01/18/2023]
Abstract
Positron emission tomography/magnetic resonance imaging (PET/MR) is used in the pre-treatment and surveillance settings to evaluate women with gynecologic malignancies, including uterine, cervical, vaginal and vulvar cancers. PET/MR combines the excellent spatial and contrast resolution of MR imaging for gynecologic tissues, with the functional metabolic information of PET, to aid in a more accurate assessment of local disease extent and distant metastatic disease. In this review, the optimal protocol and utility of whole-body PET/MR imaging in patients with gynecologic malignancies will be discussed, with an emphasis on the advantages of PET/MR over PET/CT and how to differentiate normal or benign gynecologic tissues from cancer in the pelvis.
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27
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The prognosis of non-small cell lung cancer patients according to endobronchial metastatic lesion. Sci Rep 2022; 12:13588. [PMID: 35948652 PMCID: PMC9365769 DOI: 10.1038/s41598-022-17918-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Accepted: 08/02/2022] [Indexed: 11/09/2022] Open
Abstract
To evaluate the prognosis of non-small cell lung cancer (NSCLC) patients according to endobronchial metastatic lesion (EML), especially those not identified on positron emission tomography or computed tomography. We evaluated progression-free survival (PFS) and overall survival (OS) according to the presence of EML in patients with NSCLC who were diagnosed at a tertiary hospital between January 2010 and December 2019. A total of 364 patients were enrolled in this study. EML was found in 69 (19.0%) patients with NSCLC. In the patients with EML versus the patients without EML, median PFS was 7.0 (3.5–13.5) and 9.5 (5.5–17.5) months (P = 0.011), and median OS was 12.0 (6.0–30.0) versus 20.0 (10.0–39.0) months (P = 0.016), respectively. Median PFS and OS rates were highest in epidermal growth factor receptor (EGFR) (+) and EML (−) patients and lowest in EGFR (−) and EML (+) patients (P < 0.001). By multivariate cox regression analysis, PFS in overall patients with NSCLC was significantly associated with EML, EGFR mutation, performance status, and pleural effusion. NSCLC patients with EML had worse prognoses of PFS and OS than patients without EML.
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28
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Arnouk S, De Groof TW, Van Ginderachter JA. Imaging and therapeutic targeting of the tumor immune microenvironment with biologics. Adv Drug Deliv Rev 2022; 184:114239. [PMID: 35351469 DOI: 10.1016/j.addr.2022.114239] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2021] [Revised: 02/14/2022] [Accepted: 03/23/2022] [Indexed: 11/01/2022]
Abstract
The important role of tumor microenvironmental elements in determining tumor progression and metastasis has been firmly established. In particular, the presence and activity profile of tumor-infiltrating immune cells may be associated with the outcome of the disease and may predict responsiveness to (immuno)therapy. Indeed, while some immune cell types, such as macrophages, support cancer cell outgrowth and mediate therapy resistance, the presence of activated CD8+ T cells is usually indicative of a better prognosis. It is therefore of the utmost interest to obtain a full picture of the immune infiltrate in tumors, either as a prognostic test, as a way to stratify patients to maximize therapeutic success, or as therapy follow-up. Hence, the non-invasive imaging of these cells is highly warranted, with biologics being prime candidates to achieve this goal.
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Lonie S, Fong A, Gregory P, Jain M, Pratt G. PET positive tattoo lymphadenopathy: a case report and review of the literature. AUSTRALASIAN JOURNAL OF PLASTIC SURGERY 2022. [DOI: 10.34239/ajops.v5n1.272] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
We present a case of positron emission tomography (PET)–avid internal mammary lymphadenopathy, prompting open excisional biopsy of the lymph node in the setting of concern about breast-implant associated anaplastic large cell lymphoma (BIA-ALCL) or breast cancer recurrence. Histopathological examination revealed reactive lymphadenopathy with tattoo ink and no malignancy. We undertook a review of the literature to investigate the frequency of tattoo ink related PET-avid lymphadenopathy, and false positive PET scan results from tattooing. Lymphadenopathy related to tattoo ink has been reported previously, however this is the only case of benign PET positive tattoo lymphadenopathy resulting in unnecessary invasive surgery reported to date.
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Wang X, Jemaa S, Fredrickson J, Coimbra AF, Nielsen T, De Crespigny A, Bengtsson T, Carano RAD. Heart and bladder detection and segmentation on FDG PET/CT by deep learning. BMC Med Imaging 2022; 22:58. [PMID: 35354384 PMCID: PMC8977865 DOI: 10.1186/s12880-022-00785-7] [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: 07/14/2021] [Accepted: 03/22/2022] [Indexed: 12/04/2022] Open
Abstract
Purpose Positron emission tomography (PET)/ computed tomography (CT) has been extensively used to quantify metabolically active tumors in various oncology indications. However, FDG-PET/CT often encounters false positives in tumor detection due to 18fluorodeoxyglucose (FDG) accumulation from the heart and bladder that often exhibit similar FDG uptake as tumors. Thus, it is necessary to eliminate this source of physiological noise. Major challenges for this task include: (1) large inter-patient variability in the appearance for the heart and bladder. (2) The size and shape of bladder or heart may appear different on PET and CT. (3) Tumors can be very close or connected to the heart or bladder. Approach A deep learning based approach is proposed to segment the heart and bladder on whole body PET/CT automatically. Two 3D U-Nets were developed separately to segment the heart and bladder, where each network receives the PET and CT as a multi-modal input. Data sets were obtained from retrospective clinical trials and include 575 PET/CT for heart segmentation and 538 for bladder segmentation. Results The models were evaluated on a test set from an independent trial and achieved a Dice Similarity Coefficient (DSC) of 0.96 for heart segmentation and 0.95 for bladder segmentation, Average Surface Distance (ASD) of 0.44 mm on heart and 0.90 mm on bladder. Conclusions This methodology could be a valuable component to the FDG-PET/CT data processing chain by removing FDG physiological noise associated with heart and/or bladder accumulation prior to image analysis by manual, semi- or automated tumor analysis methods.
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Rosenzweig B, Haramaty R, Davidson T, Lazarovich A, Shvero A, Haifler M, Gal J, Golan S, Shpitzer S, Hoffman A, Nativ O, Freifeld Y, Zreik R, Dotan ZA. Very Low Prostate PET/CT PSMA Uptake May Be Misleading in Staging Radical Prostatectomy Candidates. J Pers Med 2022; 12:jpm12030410. [PMID: 35330410 PMCID: PMC8951096 DOI: 10.3390/jpm12030410] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2022] [Revised: 02/26/2022] [Accepted: 03/02/2022] [Indexed: 02/05/2023] Open
Abstract
Purpose: to evaluate a unique subpopulation of radical prostatectomy (RP) candidates with “negative” prostate 68Ga-labeled prostate-specific membrane antigen (PSMA) positron emission tomography (PET) computed tomography (CT) imaging scans and to characterize the clinical implications of misleading findings. Materials and Methods: This case-control retrospective study compared the final histological outcomes of patients with “negative” pre-RP PSMA PET/CT prostate scans (with a prostate maximal standardized uptake value [SUVmax] below the physiologic uptake) to those with an “intense” prostatic tracer uptake (with a SUVmax above the physiologic uptake). The patients underwent an RP between March 2015 and July 2019 in five academic centers. Data on the demographics, comorbidities, prostate-specific antigen (PSA) and rectal exam findings, prior biopsies, imaging results, biopsies, and RP histology results were collected. Results: Ninety-seven of the 392 patients who underwent an RP had PSMA PET/CT imaging preoperatively. Fifty-two (54%) had a “negative” uptake (in the study group), and 45 (46%) had a “positive” uptake (in the control group). Only the lesion size and SUVmax values on the PSMA PET/CT differed between the groups preoperatively. On the histological analysis, only the ISUP score, seminal vesicles invasion, T stage, and positive margin rates differed between the groups (p < 0.05), while 50 (96%) study group patients harbored clinically significant disease (ISUP ≥ 2), with an extra-prostatic disease in 24 (46%), perineural invasion in 35 (67%), and positive lymph nodes in 4 (8%). Conclusions: Disease aggressiveness generally correlated with an intense PSMA uptake on the preoperative PSMA PET/CT, but a subpopulation of patients with clinically significant cancer and aggressive characteristics showed a deceptively weak PSMA uptake. These data raise a concern about the unqualified application of PSMA PET/CT for staging RP candidates.
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Affiliation(s)
- Barak Rosenzweig
- Department of Urology, Chaim Sheba Medical Center, Ramat Gan 5211401, Israel; (R.H.); (A.L.); (A.S.); (Z.A.D.)
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv 6997801, Israel; (T.D.); (M.H.); (S.G.)
- Correspondence: ; Tel.: +972-3-5302221
| | - Rennen Haramaty
- Department of Urology, Chaim Sheba Medical Center, Ramat Gan 5211401, Israel; (R.H.); (A.L.); (A.S.); (Z.A.D.)
| | - Tima Davidson
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv 6997801, Israel; (T.D.); (M.H.); (S.G.)
- Department of Nuclear Medicine, Chaim Sheba Medical Center, Ramat Gan 5211401, Israel
| | - Alon Lazarovich
- Department of Urology, Chaim Sheba Medical Center, Ramat Gan 5211401, Israel; (R.H.); (A.L.); (A.S.); (Z.A.D.)
| | - Asaf Shvero
- Department of Urology, Chaim Sheba Medical Center, Ramat Gan 5211401, Israel; (R.H.); (A.L.); (A.S.); (Z.A.D.)
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv 6997801, Israel; (T.D.); (M.H.); (S.G.)
| | - Miki Haifler
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv 6997801, Israel; (T.D.); (M.H.); (S.G.)
- Department of Urology, Shamir Medical Center, Tzrifin 6093000, Israel;
| | - Jonathan Gal
- Department of Urology, Shamir Medical Center, Tzrifin 6093000, Israel;
| | - Shay Golan
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv 6997801, Israel; (T.D.); (M.H.); (S.G.)
- Section of Urology, Rabin Medical Center, Petah Tikva 4941492, Israel;
| | - Sagi Shpitzer
- Section of Urology, Rabin Medical Center, Petah Tikva 4941492, Israel;
| | - Azik Hoffman
- Department of Urology, Rambam Health Center, Haifa 3109601, Israel; (A.H.); (O.N.)
- Ruth and Bruce Rappaport Faculty of Medicine, Technion Israel Institute of Technology, Haifa 3200003, Israel; (Y.F.); (R.Z.)
| | - Omri Nativ
- Department of Urology, Rambam Health Center, Haifa 3109601, Israel; (A.H.); (O.N.)
| | - Yuval Freifeld
- Ruth and Bruce Rappaport Faculty of Medicine, Technion Israel Institute of Technology, Haifa 3200003, Israel; (Y.F.); (R.Z.)
- Department of Urology, Carmel Medical Center, Haifa 3436212, Israel
| | - Rani Zreik
- Ruth and Bruce Rappaport Faculty of Medicine, Technion Israel Institute of Technology, Haifa 3200003, Israel; (Y.F.); (R.Z.)
| | - Zohar A. Dotan
- Department of Urology, Chaim Sheba Medical Center, Ramat Gan 5211401, Israel; (R.H.); (A.L.); (A.S.); (Z.A.D.)
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv 6997801, Israel; (T.D.); (M.H.); (S.G.)
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Sheikhbahaei S, Subramaniam RM, Solnes LB. 2-Deoxy-2-[18F] Fluoro-d-Glucose PET/Computed Tomography. PET Clin 2022; 17:307-317. [DOI: 10.1016/j.cpet.2021.12.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Nawwar AA, Searle J, Hopkins R, Lyburn ID. False-Positive Axillary Lymph Nodes on FDG PET/CT Resulting From COVID-19 Immunization. Clin Nucl Med 2021; 46:1004-1005. [PMID: 33883486 PMCID: PMC8575105 DOI: 10.1097/rlu.0000000000003657] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Revised: 02/28/2021] [Accepted: 02/28/2021] [Indexed: 11/25/2022]
Abstract
ABSTRACT World-wide mass COVID-19 vaccination has been deployed starting with those most vulnerable, including the elderly and cancer patients. A 70-year-old man with right lung cancer underwent staging FDG PET/CT, which demonstrated an avid right lung mass with avid hilar and mediastinal nodes. Avid left axillary nodes of benign configuration were also noted. The patient had the Oxford-AstraZeneca COVID-19 vaccination in the left arm a week earlier. On reflection, the axillary nodes were concluded to be reactive related to this. This is a potential COVID-19 vaccination associated pitfall on PET/CT that should be considered when interpreting FDG PET/CT images.
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Affiliation(s)
- Ayah Adel Nawwar
- From the Cobalt Medical Charity, Cheltenham, United Kingdom
- Clinical Oncology and Nuclear Medicine Department, Cairo University, Cairo, Egypt
| | - Julie Searle
- From the Cobalt Medical Charity, Cheltenham, United Kingdom
- Gloucestershire Hospitals NHS Foundation Trust, Cheltenham
| | - Richard Hopkins
- From the Cobalt Medical Charity, Cheltenham, United Kingdom
- Gloucestershire Hospitals NHS Foundation Trust, Cheltenham
| | - Iain Douglas Lyburn
- From the Cobalt Medical Charity, Cheltenham, United Kingdom
- Gloucestershire Hospitals NHS Foundation Trust, Cheltenham
- Cranfield Forensic Institute, Cranfield University at Shrivenham, Swindon, United Kingdom
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West JD, Kim ME, Lapalma DM, Vergara-Lluri M, Conti P, Chambers TN, Swanson MS. 18FDG-PET/CT Specificity for the Detection of Lymphoma Recurrence in the Tonsils. OTO Open 2021; 5:2473974X211059081. [PMID: 34805720 PMCID: PMC8600558 DOI: 10.1177/2473974x211059081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Accepted: 10/15/2021] [Indexed: 11/18/2022] Open
Abstract
Objective In patients with a history of lymphoma who demonstrate palatine tonsil uptake
on posttreatment PET/CT (positron emission tomography/computed tomography),
tonsillectomy is often performed to evaluate for lymphoma recurrence.
However, predictive clinical and imaging factors for true tonsil recurrence
in this setting are not well established; this will be explored herein. Study Design Retrospective case series. Setting Patients treated at a tertiary medical center from January 2008 to May
2020. Methods Chart review was performed on all patients with a history of treated lymphoma
in clinical remission who presented for evaluation of abnormal PET/CT
imaging findings and subsequently underwent tonsillectomy. Results Among 15 patients who met inclusion criteria, 14 had benign findings on
surgical pathology, yielding a false-positive rate of 93%. The patient with
malignancy was identified on biopsy after inconclusive surgical pathology
and is the only documented case of recurrence in this specific patient
population throughout the literature. The patient presented with B symptoms,
irregularly shaped tonsils, increased lymph node activity on PET/CT, and
uptrending bilateral tonsil activity but with one of the lowest maximum
standardized uptake values of the cohort. The singular distinguishing
feature for the patient with recurrent disease was a prior tonsil biopsy
suspicious for recurrence, which prompted the otolaryngology referral. Conclusion PET/CT lacks specificity in identifying lymphoma recurrence in the
oropharynx. Clinical and radiographic features that were previously
considered concerning for recurrence are most likely not indicative of
malignancy in this patient population. Our findings call into question
whether tonsillectomy should be routinely performed in this patient
population.
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Affiliation(s)
- Jonathan D West
- Keck School of Medicine, University of Southern California, Los Angeles, California, USA
| | - Mary E Kim
- Keck School of Medicine, University of Southern California, Los Angeles, California, USA
| | - Dorian M Lapalma
- Division of Neuroradiology, Department of Radiology, Keck School of Medicine, University of Southern California, Los Angeles, California, USA
| | - Maria Vergara-Lluri
- Hematopathology Section, Department of Pathology, University of Southern California, Los Angeles, California, USA
| | - Peter Conti
- Division of Neuroradiology, Department of Radiology, Keck School of Medicine, University of Southern California, Los Angeles, California, USA
| | - Tamara N Chambers
- USC Caruso Department of Otolaryngology-Head and Neck Surgery, Keck School of Medicine, University of Southern California, Los Angeles, California, USA
| | - Mark S Swanson
- USC Caruso Department of Otolaryngology-Head and Neck Surgery, Keck School of Medicine, University of Southern California, Los Angeles, California, USA
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Purandare NC, Shah S, Agrawal A, Puranik A, Rangarajan V. Spectrum of Flurodeoxyglucose Positron Emission Tomography/Computerized Tomography Findings in Tumors and Tumor-Like Conditions of the Musculoskeletal System. Indian J Nucl Med 2021; 36:327-339. [PMID: 34658562 PMCID: PMC8481850 DOI: 10.4103/ijnm.ijnm_242_20] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2020] [Revised: 02/12/2021] [Accepted: 02/24/2021] [Indexed: 11/18/2022] Open
Abstract
Bone and soft-tissue tumors display a wide range of metabolic activity on flurodeoxyglucose positron emission tomography/computerized tomography (FDG PET/CT) imaging due to their varying histopathological features. Several benign tumors show high FDG uptake similar to that seen in malignant lesions and their metabolic characteristics can overlap. Certain benign tumors can potentially undergo malignant transformation and FDG PET/CT can play an important role in detecting malignant change. The intensity of metabolic activity on FDG PET/CT correlates with histological grade of malignant tumors and also acts as a valuable prognostic factor. FDG PET/CT plays an important role in the staging work up of bone and soft-tissue malignancies. It has been found to be superior to conventional imaging techniques primarily for detecting distant metastatic disease. Because of its ability to detect metabolic changes, FDG PET/CT is a very useful in assessing response to treatment. Metabolic response seen on FDG PET is a powerful surrogate marker of histopathological response to chemotherapy. The purpose of this article is to study the variable patterns of FDG uptake in tumors of the musculoskeletal system, describe the clinical utility of FDG PET/CT in predicting malignant change in benign tumors and discuss its role in staging, response assessment, and prognostication of malignant lesions.
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Affiliation(s)
- Nilendu C Purandare
- Department of Nuclear Medicine and Molecular Imaging, Tata Memorial Hospital, Homi Bhabha National University (HBNI), Mumbai, Maharashtra, India
| | - Sneha Shah
- Department of Nuclear Medicine and Molecular Imaging, Tata Memorial Hospital, Homi Bhabha National University (HBNI), Mumbai, Maharashtra, India
| | - Archi Agrawal
- Department of Nuclear Medicine and Molecular Imaging, Tata Memorial Hospital, Homi Bhabha National University (HBNI), Mumbai, Maharashtra, India
| | - Ameya Puranik
- Department of Nuclear Medicine and Molecular Imaging, Tata Memorial Hospital, Homi Bhabha National University (HBNI), Mumbai, Maharashtra, India
| | - Venkatesh Rangarajan
- Department of Nuclear Medicine and Molecular Imaging, Tata Memorial Hospital, Homi Bhabha National University (HBNI), Mumbai, Maharashtra, India
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Lim CH, Yoon SE, Kim WS, Lee KH, Kim SJ. Imaging Features and Prognostic Value of FDG PET/CT in Patients with Intravascular Large B-Cell Lymphoma. Cancer Manag Res 2021; 13:7289-7297. [PMID: 34584455 PMCID: PMC8464312 DOI: 10.2147/cmar.s330308] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Accepted: 09/09/2021] [Indexed: 12/04/2022] Open
Abstract
Purpose The clinical value of 18F-fluorodeoxyglucose positron emission tomography/computed tomography (FDG PET/CT) in intravascular large B-cell lymphoma (IVLBCL) is unknown. This study investigated the association between PET/CT features and prognosis in IVLBCL patients. Patients and Methods Subjects were 30 newly diagnosed Asian variant IVLBCL patients at a single institution. Baseline PET/CT was analyzed for the distribution and intensity of FDG lesions, and PET/CT pattern groups were compared for the outcome. Results Eight patients had hypermetabolic lymph node (LN) lesions (Nodal group). The remaining 22 patients with extranodal (EN) involvement were categorized into Deauville score 3–4 (EN/DS3-4; n = 14) and DS5 groups (EN/DS5; n = 8). First-line therapy resulted in a complete or partial response in 75.0%, 64.3%, and 100% of the respective groups. Treatment-related deaths occurred in one nodal group and three EN/DS3-4 group cases, but none among the EN/DS5 group. During 56 months of follow-up, disease progression or relapse occurred in five, four, and one case of respective groups. Cancer-related death occurred more frequently in the Nodal (n = 6) and EN/DS3-4 groups (n = 7) than the EN/DS5 group (n = 1; P = 0.041). Nodal and EN/DS3-4 groups had worse 5-year event-free survival (EFS; 25.0% and 49.0%, respectively, P = 0.010 and 0.076) and overall survival (OS; 33.3% and 48.2%, P = 0.010 and 0.068) compared to the EN/DS5 group (87.5% EFS and 87.5% OS). Conclusion In patients with Asian variant IVLBCL, the distribution and intensity of FDG uptake lesions on PET/CT can be useful for predicting treatment outcomes and survival.
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Affiliation(s)
- Chae Hong Lim
- Department of Nuclear Medicine, Soonchunhyang University College of Medicine, Seoul, Korea
| | - Sang Eun Yoon
- Division of Hematology-Oncology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Won Seog Kim
- Division of Hematology-Oncology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Kyung-Han Lee
- Department of Nuclear Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea.,Department of Health Sciences and Technology, Samsung Advanced Institute for Health Sciences and Technology, Sungkyunkwan University, Seoul, Korea
| | - Seok Jin Kim
- Division of Hematology-Oncology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea.,Department of Health Sciences and Technology, Samsung Advanced Institute for Health Sciences and Technology, Sungkyunkwan University, Seoul, Korea
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37
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Sureka B, Rastogi A, Mukund A, Sarin SK. False-positive 18F fluorodeoxyglucose positron emission tomography-avid benign hepatic tumor: Previously unreported in a male patient. Indian J Radiol Imaging 2021; 28:200-204. [PMID: 30050244 PMCID: PMC6038214 DOI: 10.4103/ijri.ijri_170_17] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
We report a case of 18F fluorodeoxyglucose (FDG) positron emission tomography (PET)–computed tomography-avid histologically confirmed inflammatory hepatic adenoma in a 77-year-old male patient without any history of steroid, alcohol use. This is the first case report of inflammatory hepatic adenoma in a male patient documented in the published literature showing uptake on 18F-FDG PET. Previous single case report of 18F-FDG PET-avid hepatic adenoma in a male patient was of hepatocyte nuclear factor-1-α subtype.
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Affiliation(s)
- Binit Sureka
- Department of Radiology, Institute of Liver and Biliary Sciences, New Delhi, India
| | - Archana Rastogi
- Department of Pathology, Institute of Liver and Biliary Sciences, New Delhi, India
| | - Amar Mukund
- Department of Radiology, Institute of Liver and Biliary Sciences, New Delhi, India
| | - Shiv Kumar Sarin
- Department of Hepatology, Institute of Liver and Biliary Sciences, New Delhi, India
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Abstract
PURPOSE Some consider fluorodeoxyglucose positron emission tomography with computed tomography (FDG-PET/CT) clinically useful in patients presenting with nonspecific symptoms of malignancy, weight loss most commonly encountered. However, the appropriateness of such FDG-PET/CT studies remains to be clarified. This study evaluated the clinical value of FDG-PET/CT in patients referred primarily for weight loss. METHODS From 2010 to 2017 in one academic center, 252 subjects underwent 254 FDG-PET/CT studies for weight loss as primary indication and retrospectively studied. Eighteen subjects were excluded due to ongoing active malignancy, weight loss not ultimately being the main indication for the FDG-PET/CT, technically inadequate FDG-PET/CT and insufficient follow-up. The FDG-PET/CT scans were considered clinically beneficial when true positive for the cause of weight loss that other investigations missed or would have missed, clinically neutral when true negative and clinically detrimental when false positive leading to additional investigations or false negative. RESULTS Ultimately 234 unique subjects (236 FDG-PET/CT studies) were included. The average subject weight loss prior to the PET was 12 kg and average follow-up time post FDG-PET/CT scan was 3.4 years. The FDG-PET/CT scans were true positive in 24 studies (10%) with 8 studies (3%) clinically beneficial; false positive in 38 studies (16%) of which 26 led to 35 additional procedures and false negative in 13 studies (6%). In total, 39 (17%) FDG-PET/CT studies were clinically detrimental. The other 149 (63%) studies were true negative, clinically neutral. CONCLUSION FDG-PET/CT appears to have limited value in assessing subjects with weight loss as the leading clinical indication, proving to be five times more often detrimental than beneficial.
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39
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Osborne D, Lattanze R, Knowland J, Bryant TE, Barvi I, Fu Y, Kiser JW. The Scientific and Clinical Case for Reviewing Diagnostic Radiopharmaceutical Extravasation Long-Standing Assumptions. Front Med (Lausanne) 2021; 8:684157. [PMID: 34262915 PMCID: PMC8273265 DOI: 10.3389/fmed.2021.684157] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Accepted: 06/02/2021] [Indexed: 11/13/2022] Open
Abstract
Background: The patient benefit from a diagnostic nuclear medicine procedure far outweighs the associated radiation risk. This benefit/risk ratio assumes a properly administered radiopharmaceutical. However, a significant diagnostic radiopharmaceutical extravasation can confound the procedure in many ways. We identified three current extravasation hypotheses espoused by medical societies, advisory committees, and hundreds of individual members of the nuclear medicine community: diagnostic extravasations do not cause harm, do not result in high absorbed dose to tissue, and require complex dosimetry methods that are not readily available in nuclear medicine centers. We tested these hypotheses against a framework of current knowledge, recent developments, and original research. We conducted a literature review, searched regulatory databases, examined five clinical cases of extravasated patients, and performed dosimetry on those extravasations to test these globally accepted hypotheses. Results: A literature review found 58 peer-reviewed documents suggesting patient harm. Adverse event/vigilance report database reviews for extravasations were conducted and revealed 38 adverse events which listed diagnostic radiopharmaceutical extravasation as a factor, despite a regulatory exemption for required reporting. In our own case material, assessment of care was evaluated for five extravasated patients who underwent repeat imaging. Findings reflected results of literature review and included mis- or non-identification of lesions, underestimation of Standardized Uptake Values (SUVs) by 19-73%, classification of scans as non-diagnostic, and the need to repeat imaging with the associated additional radiation exposure, inconvenience, or delays in care. Dosimetry was performed for the same five cases of diagnostic radiopharmaceutical extravasation. Absorbed doses to 5 cm3 of tissue were between 1.1 and 8.7 Gy, and shallow dose equivalent for 10 cm2 of skin was as high as 4.2 Sv. Conclusions: Our findings suggest that significant extravasations can or have caused patient harm and can irradiate patients' tissue with doses that exceed medical event reporting limits and deterministic effect thresholds. Therefore, diagnostic radiopharmaceutical injections should be monitored, and dosimetry of extravasated tissue should be performed in certain cases where thresholds are thought to have been exceeded. Process improvement efforts should be implemented to reduce the frequency of extravasation in nuclear medicine.
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Affiliation(s)
- Dustin Osborne
- Radiology Department, University of Tennessee Graduate School of Medicine, Knoxville, TN, United States
| | | | | | | | - Iryna Barvi
- Lucerno Dynamics LLC, Cary, NC, United States
| | - Yitong Fu
- Radiology Department, University of Tennessee Graduate School of Medicine, Knoxville, TN, United States
| | - Jackson W. Kiser
- Department of Molecular Imaging, Carilion Clinic, Roanoke, VA, United States
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40
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Capozzi A, Kilund J, Karlsson M, Patel S, Pinon AC, Vibert F, Ouari O, Lerche MH, Ardenkjær-Larsen JH. Metabolic contrast agents produced from transported solid 13C-glucose hyperpolarized via dynamic nuclear polarization. Commun Chem 2021; 4:95. [PMID: 36697707 PMCID: PMC9814755 DOI: 10.1038/s42004-021-00536-9] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Accepted: 06/08/2021] [Indexed: 01/28/2023] Open
Abstract
Magnetic Resonance Imaging combined with hyperpolarized 13C-labelled metabolic contrast agents produced via dissolution Dynamic Nuclear Polarization can, non-invasively and in real-time, report on tissue specific aberrant metabolism. However, hyperpolarization equipment is expensive, technically demanding and needs to be installed on-site for the end-user. In this work, we provide a robust methodology that allows remote production of the hyperpolarized 13C-labelled metabolic contrast agents. The methodology, built on photo-induced thermally labile radicals, allows solid sample extraction from the hyperpolarization equipment and several hours' lifetime of the 13C-labelled metabolic contrast agents at appropriate storage/transport conditions. Exemplified with [U-13C, d7]-D-glucose, we remotely produce hyperpolarized 13C-labelled metabolic contrast agents and generate above 10,000-fold liquid-state Magnetic Resonance signal enhancement at 9.4 T, keeping on-site only a simple dissolution device.
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Affiliation(s)
- Andrea Capozzi
- grid.5333.60000000121839049LIFMET, Department of Physics, EPFL, Station 6 (Batiment CH), Lausanne, Switzerland ,grid.5170.30000 0001 2181 8870HYPERMAG, Department of Health Technology, Technical University of Denmark, Lyngby, Denmark
| | - Jan Kilund
- grid.5170.30000 0001 2181 8870HYPERMAG, Department of Health Technology, Technical University of Denmark, Lyngby, Denmark
| | - Magnus Karlsson
- grid.5170.30000 0001 2181 8870HYPERMAG, Department of Health Technology, Technical University of Denmark, Lyngby, Denmark
| | - Saket Patel
- grid.5170.30000 0001 2181 8870HYPERMAG, Department of Health Technology, Technical University of Denmark, Lyngby, Denmark
| | - Arthur Cesar Pinon
- grid.5170.30000 0001 2181 8870HYPERMAG, Department of Health Technology, Technical University of Denmark, Lyngby, Denmark
| | - François Vibert
- grid.4444.00000 0001 2112 9282Institut de Chimie Radicalire Aix-Marseille Université, CNRS, ICR UMR 7273, Marseille, Cedex 20 France
| | - Olivier Ouari
- grid.4444.00000 0001 2112 9282Institut de Chimie Radicalire Aix-Marseille Université, CNRS, ICR UMR 7273, Marseille, Cedex 20 France
| | - Mathilde H. Lerche
- grid.5170.30000 0001 2181 8870HYPERMAG, Department of Health Technology, Technical University of Denmark, Lyngby, Denmark
| | - Jan Henrik Ardenkjær-Larsen
- grid.5170.30000 0001 2181 8870HYPERMAG, Department of Health Technology, Technical University of Denmark, Lyngby, Denmark
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Mihailovic J, Killeen RP, Duignan JA. PET/CT Variants and Pitfalls in Head and Neck Cancers Including Thyroid Cancer. Semin Nucl Med 2021; 51:419-440. [PMID: 33947603 DOI: 10.1053/j.semnuclmed.2021.03.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
PET/CT imaging is a dual-modality diagnostic technology that merges metabolic and structural imaging. There are several currently available radiotracers, but 18F-FDG is the most commonly utilized due to its widespread availability. 18F-FDG PET/CT is a cornerstone of head and neck squamous cell carcinoma imaging. 68Ga-DOTA-TOC is another widely used radiotracer. It allows for whole-body imaging of cellular somatostatin receptors, commonly expressed by neuroendocrine tumors and is the standard of reference for the characterization and staging of neuroendocrine tumors. The normal biodistribution of these PET radiotracers as well as the technical aspects of image acquisition and inadequate patient preparation affect the quality of PET/CT imaging. In addition, normal variants, artifacts and incidental findings may impede accurate image interpretation and can potentially lead to misdiagnosis. In order to correctly interpret PET/CT imaging, it is necessary to have a comprehensive knowledge of the normal anatomy of the head and neck and to be cognizant of potential imaging pitfalls. The interpreter must be familiar with benign conditions which may accumulate radiotracer potentially mimicking neoplastic processes and also be aware of malignancies which can demonstrate low radiotracer uptake. Appropriate use of structural imaging with either CT, MR or ultrasound can serve a complimentary role in several head and neck pathologies including local tumor staging, detection of bone marrow involvement or perineural spread, and classification of thyroid nodules. It is important to be aware of the role of these complementary modalities to maximize diagnostic accuracy and patient outcomes. The purpose of this article is to outline the basic principles of PET/CT imaging, with a focus on 18F-FDG PET/CT and 68Ga-DOTA PET/CT. Basic physiology, variant imaging appearances and potential pitfalls of image interpretation are presented within the context of common use cases of PET technology in patients with head and neck cancers and other pathologies, benign and malignant.
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Affiliation(s)
- Jasna Mihailovic
- Department of Radiology, Faculty of Medicine, University of Novi Sad, Novi Sad, Serbia; Centre of Nuclear Medicine, Oncology Institute of Vojvodina, Sremska Kamenica, Serbia.
| | - Ronan P Killeen
- Department of Radiology, St Vincent's University Hospital, Elm Park, Dublin 4, Ireland; UCD - SVUH PET CT Research Centre, St Vincent's University Hospital, Elm Park, Dublin 4, Ireland
| | - John A Duignan
- Department of Radiology, St Vincent's University Hospital, Elm Park, Dublin 4, Ireland; UCD - SVUH PET CT Research Centre, St Vincent's University Hospital, Elm Park, Dublin 4, Ireland
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Schaner PE, Tran LBA, Zaki BI, Swartz HM, Demidenko E, Williams BB, Siegel A, Kuppusamy P, Flood AB, Gallez B. The impact of particulate electron paramagnetic resonance oxygen sensors on fluorodeoxyglucose imaging characteristics detected via positron emission tomography. Sci Rep 2021; 11:4422. [PMID: 33627688 PMCID: PMC7904945 DOI: 10.1038/s41598-021-82754-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Accepted: 01/25/2021] [Indexed: 11/08/2022] Open
Abstract
During a first-in-humans clinical trial investigating electron paramagnetic resonance tumor oximetry, a patient injected with the particulate oxygen sensor Printex ink was found to have unexpected fluorodeoxyglucose (FDG) uptake in a dermal nodule via positron emission tomography (PET). This nodule co-localized with the Printex ink injection; biopsy of the area, due to concern for malignancy, revealed findings consistent with ink and an associated inflammatory reaction. Investigations were subsequently performed to assess the impact of oxygen sensors on FDG-PET/CT imaging. A retrospective analysis of three clinical tumor oximetry trials involving two oxygen sensors (charcoal particulates and LiNc-BuO microcrystals) in 22 patients was performed to evaluate FDG imaging characteristics. The impact of clinically used oxygen sensors (carbon black, charcoal particulates, LiNc-BuO microcrystals) on FDG-PET/CT imaging after implantation in rat muscle (n = 12) was investigated. The retrospective review revealed no other patients with FDG avidity associated with particulate sensors. The preclinical investigation found no injected oxygen sensor whose mean standard uptake values differed significantly from sham injections. The risk of a false-positive FDG-PET/CT scan due to oxygen sensors appears low. However, in the right clinical context the potential exists that an associated inflammatory reaction may confound interpretation.
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Affiliation(s)
- Philip E Schaner
- Department of Medicine Section of Radiation Oncology, Dartmouth-Hitchcock Medical Center, One Medical Center Drive, Lebanon, NH, 03756, USA.
| | - Ly-Binh-An Tran
- Biomedical Magnetic Resonance, Louvain Drug Research Institute, Universite Catholique du Louvain, Brussels, Belgium
| | - Bassem I Zaki
- Department of Medicine Section of Radiation Oncology, Dartmouth-Hitchcock Medical Center, One Medical Center Drive, Lebanon, NH, 03756, USA
| | - Harold M Swartz
- Department of Medicine Section of Radiation Oncology, Dartmouth-Hitchcock Medical Center, One Medical Center Drive, Lebanon, NH, 03756, USA
- Department of Radiology, Geisel School of Medicine, Dartmouth College, Hanover, NH, USA
| | - Eugene Demidenko
- Department of Biomedical Data Science, Geisel School of Medicine, Dartmouth College, Hanover, NH, USA
| | - Benjamin B Williams
- Department of Medicine Section of Radiation Oncology, Dartmouth-Hitchcock Medical Center, One Medical Center Drive, Lebanon, NH, 03756, USA
- Department of Radiology, Geisel School of Medicine, Dartmouth College, Hanover, NH, USA
| | - Alan Siegel
- Department of Radiology, Dartmouth-Hitchcock Medical Center, Lebanon, NH, USA
| | - Periannan Kuppusamy
- Department of Medicine Section of Radiation Oncology, Dartmouth-Hitchcock Medical Center, One Medical Center Drive, Lebanon, NH, 03756, USA
- Department of Radiology, Geisel School of Medicine, Dartmouth College, Hanover, NH, USA
| | - Ann Barry Flood
- Department of Radiology, Geisel School of Medicine, Dartmouth College, Hanover, NH, USA
| | - Bernard Gallez
- Biomedical Magnetic Resonance, Louvain Drug Research Institute, Universite Catholique du Louvain, Brussels, Belgium
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Zafar S, Sharma RK, Cunningham J, Mahalingam P, Attygalle AD, Khan N, Cunningham D, El-Sharkawi D, Iyengar S, Sharma B. Current and future best practice in imaging, staging, and response assessment for Non-Hodgkin's lymphomas: the Specialist Integrated Haematological Malignancy Imaging Reporting (SIHMIR) paradigm shift. Clin Radiol 2021; 76:391.e1-391.e18. [PMID: 33579517 DOI: 10.1016/j.crad.2020.12.022] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2020] [Accepted: 12/24/2020] [Indexed: 12/12/2022]
Abstract
Non-Hodgkin's lymphoma (NHL) encompasses over 40 different haematological malignancies, including low and high-grade neoplasms, such as follicular lymphoma (FL) and diffuse large B-cell lymphoma (DLBCL) respectively. A key clinical issue in the context of NHL is delayed and inaccurate diagnosis, which contributes adversely to patient morbidity and mortality. This article will address relevant imaging aspects, with particular reference to advancements in NHL imaging, including computed tomography (CT), integrated positron-emission tomography (PET)-CT, and magnetic resonance imaging (MRI). We provide multiparametric (anato-functional) imaging display items, including histological correlation. We will also introduce our original concept of "Specialist Integrated Haematological Malignancy Imaging Reporting" (SIHMIR), a paradigm shift in lymphoma radiology.
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Affiliation(s)
- S Zafar
- Department of Radiology, The Royal Marsden NHS Trust, London, UK.
| | - R K Sharma
- College of Medicine and Health, University of Exeter, UK
| | - J Cunningham
- The Lymphoma Unit, The Royal Marsden NHS Trust, London, UK
| | - P Mahalingam
- The Lymphoma Unit, The Royal Marsden NHS Trust, London, UK
| | - A D Attygalle
- The Lymphoma Unit, The Royal Marsden NHS Trust, London, UK
| | - N Khan
- Department of Radiology, The Royal Marsden NHS Trust, London, UK
| | - D Cunningham
- The Lymphoma Unit, The Royal Marsden NHS Trust, London, UK
| | - D El-Sharkawi
- The Lymphoma Unit, The Royal Marsden NHS Trust, London, UK
| | - S Iyengar
- The Lymphoma Unit, The Royal Marsden NHS Trust, London, UK; The Institute of Cancer Research, London, UK
| | - B Sharma
- Department of Radiology, The Royal Marsden NHS Trust, London, UK; The Lymphoma Unit, The Royal Marsden NHS Trust, London, UK
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Zhang Z, Zheng B, Chen W, Xiong H, Jiang C. Accuracy of 18F-FDG PET/CT and CECT for primary staging and diagnosis of recurrent gastric cancer: A meta-analysis. Exp Ther Med 2021; 21:164. [PMID: 33456531 PMCID: PMC7792481 DOI: 10.3892/etm.2020.9595] [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: 05/04/2020] [Accepted: 10/08/2020] [Indexed: 02/06/2023] Open
Abstract
Contrast-enhanced computed tomography (CECT) is commonly used for staging and diagnosing recurrent gastric cancer. Recently, 18F-fluorodeoxyglucose positron emission tomography (18F-FDG PET)/CT gained popularity as a diagnostic tool owing to advantages including dual functional and anatomical imaging, which may facilitate early diagnosis. The diagnostic performance of 18F-FDG PET/CT and CECT has been assessed in several studies but with variable results. Therefore, the present meta-analysis aimed to evaluate the accuracy of 18F-FDG PET/CT and CECT for primary TNM staging and the diagnosis of recurrent gastric cancers. A systematic search of the PubMed Central, Medline, Scopus, Cochrane and Embase databases from inception until January 2020 was performed. The Quality Assessment of Diagnostic Accuracy Study-2 tool was used to determine the quality of the selected studies. Pooled estimates of sensitivity and specificity were calculated. A total of 58 studies comprising 9,997 patients were included. Most studies had a low risk of bias. The sensitivity and specificity for nodal staging of gastric cancer were 49% (95% CI, 37-61%) and 92% (95% CI, 86-96%) for 18F-FDG PET/CT, respectively, and 67% (95% CI, 57-76%) and 86% (95% CI, 81-89%) for CECT, respectively. For metastasis staging, the sensitivity and specificity were 56% (95% CI, 40-71%) and 97% (95% CI, 87-99%) for 18F-FDG PET/CT, respectively, and 59% (95% CI, 41-75%) and 96% (95% CI, 83-99%) for CECT, respectively. For diagnosing cancer recurrence, the pooled sensitivity and specificity were 81% (95% CI, 72-88%) and 83% (95% CI, 74-89%) for 18F-FDG PET/CT, respectively, and 59% (95% CI, 41-75%) and 96% (95% CI, 83-99%) for CECT, respectively. Both 18F-FDG PET/CT and CECT were deemed highly useful for diagnosing recurrent gastric cancer due to their high sensitivities and specificities. However, these techniques cannot be used to exclude or confirm the presence of lymph node metastases or recurrent gastric cancer tumors, but can be used for the confirmation of distal metastasis.
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Affiliation(s)
- Zhicheng Zhang
- Department of Radiology, The Ninth People's Hospital of Chongqing, Chongqing 400700, P.R. China
| | - Bo Zheng
- Department of Radiology, The Ninth People's Hospital of Chongqing, Chongqing 400700, P.R. China
| | - Wei Chen
- Department of Radiology, The Ninth People's Hospital of Chongqing, Chongqing 400700, P.R. China
| | - Hui Xiong
- Department of Radiology, The Ninth People's Hospital of Chongqing, Chongqing 400700, P.R. China
| | - Caiming Jiang
- Department of Radiology, The Ninth People's Hospital of Chongqing, Chongqing 400700, P.R. China
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Tzror-Azankot C, Betzer O, Sadan T, Motiei M, Rahimipour S, Atkins A, Popovtzer A, Popovtzer R. Glucose-Functionalized Liposomes for Reducing False Positives in Cancer Diagnosis. ACS NANO 2021; 15:1301-1309. [PMID: 33356143 DOI: 10.1021/acsnano.0c08530] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Fluorodeoxyglucose-positron emission tomography (18F-FDG-PET) is a powerful tool for cancer detection, staging, and follow-up. However, 18F-FDG-PET imaging has high rates of false positives, as it cannot distinguish between tumor and inflammation regions that both feature increased glucose metabolic activity. In the present study, we engineered liposomes coated with glucose and the chelator dodecane tetraacetic acid (DOTA) complexed with copper, to serve as a diagnostic technology for differentiating between cancer and inflammation. This liposome technology is based on FDA-approved materials and enables complexation with metal cations and radionuclides. We found that these liposomes were preferentially uptaken by cancer cell lines with high metabolic activity, mediated via glucose transporter-1. In vivo, these liposomes were avidly uptaken by tumors, as compared to liposomes without glucose coating. Moreover, in a combined tumor-inflammation mouse model, these liposomes accumulated in the tumor tissue and not in the inflammation region. Thus, this technology shows high specificity for tumors while evading inflammation and has potential for rapid translation to the clinic and integration with existing PET imaging systems, for effective reduction of false positives in cancer diagnosis.
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Affiliation(s)
- Chen Tzror-Azankot
- Faculty of Engineering and the Institute of Nanotechnology & Advanced Materials, Bar-Ilan University, Ramat Gan 5290002, Israel
| | - Oshra Betzer
- Faculty of Engineering and the Institute of Nanotechnology & Advanced Materials, Bar-Ilan University, Ramat Gan 5290002, Israel
| | - Tamar Sadan
- Faculty of Engineering and the Institute of Nanotechnology & Advanced Materials, Bar-Ilan University, Ramat Gan 5290002, Israel
| | - Menachem Motiei
- Faculty of Engineering and the Institute of Nanotechnology & Advanced Materials, Bar-Ilan University, Ramat Gan 5290002, Israel
| | - Shai Rahimipour
- Department of Chemistry, Bar-Ilan University, Ramat Gan 5290002, Israel
| | - Ayelet Atkins
- Mina and Everard Goodman Faculty of Life Sciences, Bar-Ilan University, Ramat Gan, 5290002, Israel
| | - Aron Popovtzer
- Sharett Institute of Oncology, Hadassah Hebrew Medical Center, Jerusalem 9112001, Israel
| | - Rachela Popovtzer
- Faculty of Engineering and the Institute of Nanotechnology & Advanced Materials, Bar-Ilan University, Ramat Gan 5290002, Israel
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Yang J, Zhao C, Lim J, Zhao L, Tourneau RL, Zhang Q, Dobson D, Joshi S, Pang J, Zhang X, Pal S, Andreou C, Zhang H, Kircher MF, Schmitthenner H. Structurally symmetric near-infrared fluorophore IRDye78-protein complex enables multimodal cancer imaging. Theranostics 2021; 11:2534-2549. [PMID: 33456558 PMCID: PMC7806473 DOI: 10.7150/thno.54928] [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: 10/23/2020] [Accepted: 11/23/2020] [Indexed: 12/14/2022] Open
Abstract
Rationale: Most contemporary cancer therapeutic paradigms involve initial imaging as a treatment roadmap, followed by the active engagement of surgical operations. Current approved intraoperative contrast agents exemplified by indocyanine green (ICG) have a few drawbacks including the inability of pre-surgical localization. Alternative near-infrared (NIR) dyes including IRDye800cw are being explored in advanced clinical trials but often encounter low chemical yields and complex purifications owing to the asymmetric synthesis. A single contrast agent with ease of synthesis that works in multiple cancer types and simultaneously allows presurgical imaging, intraoperative deep-tissue three-dimensional visualization, and high-speed microscopic visualization of tumor margins via spatiotemporally complementary modalities would be beneficial. Methods: Due to the lack of commercial availability and the absence of detailed synthesis and characterization, we proposed a facile and scalable synthesis pathway for the symmetric NIR water-soluble heptamethine sulfoindocyanine IRDye78. The synthesis can be accomplished in four steps from commercially-available building blocks. Its symmetric resonant structure avoided asymmetric synthesis problems while still preserving the benefits of analogous IRDye800cw with commensurable optical properties. Next, we introduced a low-molecular-weight protein alpha-lactalbumin (α-LA) as the carrier that effectively modulates the hepatic clearance of IRDye78 into the preferred renal excretion pathway. We further implemented 89Zr radiolabeling onto the protein scaffold for positron emission tomography (PET). The multimodal imaging capability of the fluorophore-protein complex was validated in breast cancer and glioblastoma. Results: The scalable synthesis resulted in high chemical yields, typically 95% yield in the final step of the chloro dye. Chemical structures of intermediates and the final fluorophore were confirmed. Asymmetric IRDye78 exhibited comparable optical features as symmetric IRDye800cw. Its well-balanced quantum yield affords concurrent dual fluorescence and optoacoustic contrast without self-quenching nor concentration-dependent absorption. The NHS ester functionality modulates efficient covalent coupling to reactive side-chain amines to the protein carrier, along with desferrioxamine (DFO) for stable radiolabeling of 89Zr. The fluorophore-protein complex advantageously shifted the biodistribution and can be effectively cleared through the urinary pathway. The agent accumulates in tumors and enables triple-modal visualization in mouse xenograft models of both breast and brain cancers. Conclusion: This study described in detail a generalized strategic modulation of clearance routes towards the favorable renal clearance, via the introduction of α-LA. IRDye78 as a feasible alternative of IRDye800cw currently in clinical phases was proposed with a facile synthesis and fully characterized for the first time. This fluorophore-protein complex with stable radiolabeling should have great potential for clinical translation where it could enable an elegant workflow from preoperative planning to intraoperative deep tissue and high-resolution image-guided resection.
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Zytoon AA, Elsayed EE, Nassar AI, Murakami K. Pivotal role of PET/CT in characterization of occult metastasis with undetermined origin. THE EGYPTIAN JOURNAL OF RADIOLOGY AND NUCLEAR MEDICINE 2020. [DOI: 10.1186/s43055-020-00357-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Abstract
Background
The purpose of this multicenter diagnostic accuracy test study was conducted to assess the role of positron emission tomography/computed tomography in the detection of primary tumor in cases of metastasis of undetermined primary site, to estimate its capability in detecting additional lesions as well as evaluating disease burden and staging. This multicentric diagnostic accuracy test study included 175 patients with pathologically proven, radiologically, and/or clinically suspected metastatic lesions of undetermined primary site. Clinical, surgical, and histopathologic findings and correlative imaging modalities were used to assess the results of PET/CT; the accuracy of PET/CT was expressed in terms of sensitivity and specificity, positive and negative predictive values.
Results
The study included 175 patients; PET-CT-positive lesions suggestive of primary malignant tumors were detected in 105 out of 175 patients. These lesions were pathologically proven to be malignant (true positive) in 100/175 patients (57.1%). Five out of 175 patients (2.9%) proved to be falsely positive after pathologic assessment; 70 out of 175 patients (40%) were negative for detection of primary malignancy all over the body by PET/CT (true negative) with no false negative results. PET/CT achieved a sensitivity of 100%, and specificity of 93.3% in detection of unknown primary tumor location.
Conclusion
PET/CT is an effective modality for early detection of the primary tumor site in patients with cancer of undetermined primary (CUP) which facilitates early selection of appropriate treatment protocols that will improve patients’ prognosis.
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Sarkar S, Ganesan R, Kumar B, Singh H, Basher R, Sood A. Intraoperative transesophageal echocardiography: A complement to 18F-fluorodeoxyglucose positron emission tomography-computed tomography in localizing pacemaker lead endocarditis. Ann Card Anaesth 2020; 23:524-527. [PMID: 33109819 PMCID: PMC7879899 DOI: 10.4103/aca.aca_9_19] [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] [Indexed: 11/25/2022] Open
Abstract
Lead endocarditis (LE) is a serious complication of permanent trans-venous pacing. Localizing LE may be challenging with conventional imaging modalities. 2-deoxy-2-[fluorine-18] fluoro-D-glucose positron emission tomography–computed tomography (FDG PET/CT) has recently emerged as a promising tool in the diagnosis of LE particularly in cases with normal echocardiographic imaging findings and/or negative blood culture. However, this technique is associated with some drawbacks. Knowledge of these drawbacks and correlating its limitations with other imaging modality is essential for the echocardiographer while evaluating such patient. We report a case where transesophageal echocardiography was complementary to FDG PET/CT in the diagnosis and localization of vegetation over pacemaker leads during intraoperative period.
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Affiliation(s)
- Soumya Sarkar
- Department of Anesthesia and Intensive Care, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Rajarajan Ganesan
- Department of Anesthesia and Intensive Care, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Bhupesh Kumar
- Department of Anesthesia and Intensive Care, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Harkant Singh
- Department of Cardiac Thoracic and Vascular Surgery, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Rajender Basher
- Department of Nuclear Medicine, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Ashwani Sood
- Department of Nuclear Medicine, Postgraduate Institute of Medical Education and Research, Chandigarh, India
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Takahashi M, Nojima H, Kuboki S, Horikoshi T, Yokota T, Yoshitomi H, Furukawa K, Takayashiki T, Takano S, Ohtsuka M. Comparing prognostic factors of Glut-1 expression and maximum standardized uptake value by FDG-PET in patients with resectable pancreatic cancer. Pancreatology 2020; 20:1205-1212. [PMID: 32819845 DOI: 10.1016/j.pan.2020.07.407] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/19/2020] [Revised: 07/09/2020] [Accepted: 07/29/2020] [Indexed: 02/07/2023]
Abstract
BACKGROUND This study aimed to assess the prognostic values of preoperative maximum standardized uptake value (SUVmax) of primary pancreatic tumors and Glut-1 expression in patients with resectable pancreatic ductal adenocarcinoma (R-PDAC), and to investigate whether Glut-1 expression is more effective than SUVmax in predicting survival in patients with R-PDAC. METHODS We investigated 101 R-PDAC patients who underwent pancreatectomy for pancreatic cancer treatment. SUVmax analyzed through 18F-fluoro-2-deoxyglucose positron emission tomography/computed tomography (18F-FDG-PET/CT), and Glut-1 expression, were assessed for predicting the prognosis of patients with R-PDAC. RESULTS In patients with R-PDAC, the high SUVmax group (≥4.25) had significantly shorter overall survival (OS) and disease-free survival (DFS) than the low SUVmax group (<4.25). Surprisingly, Glut-1 expression was not significantly correlated with SUVmax. Moreover, the high Glut-1 expression group, which was related to higher levels of CA 19-9, had significantly shorter OS and DFS than the low Glut-1 expression group. Furthermore, among the high SUVmax group, OS and DFS were significantly shorter in the high Glut-1 expression group. Multivariate analyses revealed that Glut-1 overexpression was an independent prognostic factor in patients with R-PDAC. Glut-1 knockdown also induced cell cycle arrest in PDAC cells in vitro. CONCLUSIONS The study determined that Glut-1 overexpression is a more powerful prognostic factor than SUVmax for predicting OS and higher risk of recurrence in R-PDAC patients. Glut-1 overexpression is also more likely to be associated with malignant activity in PDAC patients.
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Affiliation(s)
- Makoto Takahashi
- Department of General Surgery, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Hiroyuki Nojima
- Department of General Surgery, Graduate School of Medicine, Chiba University, Chiba, Japan; Department of Surgery, Teikyo Chiba Medical Center, Chiba, Japan.
| | - Satoshi Kuboki
- Department of General Surgery, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Takuro Horikoshi
- Department of Radiology, Graduate School of Medicine, Chiba University, Japan
| | - Tetsuo Yokota
- Department of General Surgery, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Hideyuki Yoshitomi
- Department of General Surgery, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Katsunori Furukawa
- Department of General Surgery, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Tsukasa Takayashiki
- Department of General Surgery, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Shigetsugu Takano
- Department of General Surgery, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Masayuki Ohtsuka
- Department of General Surgery, Graduate School of Medicine, Chiba University, Chiba, Japan
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Rahman HA, El Semary SF, Ahmed G, Kenaai NE, Omar W, Zaky I, Nagy N. Can FDG-PET replace biopsy for the evaluation of residual tumor in pediatric mature B-cell non-Hodgkin lymphoma? Pediatr Blood Cancer 2020; 67:e28310. [PMID: 32634295 DOI: 10.1002/pbc.28310] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/28/2019] [Revised: 02/08/2020] [Accepted: 03/16/2020] [Indexed: 11/07/2022]
Abstract
INTRODUCTION The aim of our study is to evaluate the role of 18 F-labeled fluorodeoxy glucose positron emission tomography (18 FDG-PET) scan for the detection of viable residual mass in pediatric mature B-cell non-Hodgkin lymphoma (NHL). This study also aims to detect the negative predictive value, positive predictive value (PPV), sensitivity, and specificity of 18 FDG-PET. PATIENTS AND METHODS A retrospective, cross-sectional nonrandomized study was carried out. We included all patients with newly diagnosed mature B-cell NHL treated at the Children Cancer Hospital Egypt during the period between July 2007 and the end of May 2018. Patients were included in the study if they (a) had a residual tumor mass, (b) underwent an 18 FDG-PET scan, and (c) had a pathologic documentation of this residual tumor. Patients were followed up till June 2019. RESULTS Thirty-six patients were included, for whom 39 biopsies were performed. Mean age was 7.7 years. Median follow-up period was 52.8, range 6.1 to 117 months.18 FDG-PET scan was positive (Deauville score 3, 4, or 5) in 24 of 39 patients (61.5%), while it was negative (Deauville score 1 or 2) in 15 patients (38.5%). Positive 18 FDG-PET scan and biopsy were performed in 15 of 39 samples (38.4%; true positive, TP), while they were both negative in 13 samples (33.3%; true negative). Nine patients (23%) had positive scan and a negative biopsy (false positive), while 2 patients had negative uptake and a positive biopsy (false negative, FN)). Sensitivity of the 18 FDG-PET scan was 88.2% and specificity was 59.1%. PPV was 62.5% and NPPV was 86.6%. CONCLUSION Changing therapy on the basis of a positive finding alone at the time of evaluation is not recommended. FN results exist, so biopsy confirmation is required to avoid the missing refractory disease. If negative, 18 FDG- PET can replace a biopsy if the latter is inaccessible or carries an unnecessary risk.
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Affiliation(s)
- Hany Abdel Rahman
- Department of Pediatric Oncology, National Cancer Institute, Cairo University and Children Cancer Hospital Egypt, Cairo, Egypt
| | - Samah Fathy El Semary
- Department of Clinical Oncology, Faculty of Medicine, Beni Suef University and Children Cancer Hospital Egypt, Beni Suef, Egypt
| | - Gehad Ahmed
- Department of Surgery, Helwan University, and Children Cancer Hospital Egypt
| | - Naglaa El Kenaai
- Department of Pathology, National Cancer Institute Cairo University, and Children Cancer Hospital Egypt, Cairo, Egypt
| | - Walid Omar
- Department of Nuclear Medicine, National Cancer Institute, Cairo University, Cairo, Egypt
| | - Iman Zaky
- Department of Radio-diagnosis, National Cancer Institute, Cairo University and Children Cancer Hospital Egypt, Cairo, Egypt
| | - Nouran Nagy
- Department of Clinical Research, Children Cancer Hospital Egypt, Cairo, Egypt
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