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Diagnostic Performances of Radiolabeled FAPI PET/CT for Lymph Node Staging in Head and Neck Cancer Patients: Comparison With 18F-FDG PET/CT. 放射标记FAPI PET/CT对头颈部肿瘤患者淋巴结分期的诊断价值：与18F-FDG PET/CT的比较
IF 9.6 3区 医学
Clinical Nuclear Medicine Pub Date : 2025-05-14 DOI: 10.1097/RLU.0000000000005973
Yun Seong Kim, Seong-Jang Kim
{"title":"Diagnostic Performances of Radiolabeled FAPI PET/CT for Lymph Node Staging in Head and Neck Cancer Patients: Comparison With 18F-FDG PET/CT.","authors":"Yun Seong Kim, Seong-Jang Kim","doi":"10.1097/RLU.0000000000005973","DOIUrl":"https://doi.org/10.1097/RLU.0000000000005973","url":null,"abstract":"<p><strong>Objective: </strong>The purpose of the current study was to compare the diagnostic performances of radiolabeled FAPI and 18F-FDG PET/CT for the detection of lymph node (LN) metastasis in head and neck cancer (HNC) patients.</p><p><strong>Methods: </strong>The PubMed, Cochrane database, and EMBASE database, from the earliest available date of indexing through December 31, 2024, were searched for studies comparing diagnostic performances of radiolabeled FAPI and 18F-FDG PET/CT for the detection of metastatic LN in HNC patients. We estimated pooled sensitivities and specificities across studies.</p><p><strong>Results: </strong>Across 8 studies (14 results), the pooled sensitivity of FAPI PET/CT was 0.89 and the pooled specificity was 0.93. The pooled sensitivity of 18F-FDG PET/CT was 0.91 and the pooled specificity was 0.50. On patient-based analysis, the estimated sensitivity and specificity of FAPI were 0.96 and 0.96, and those of 18F-FDG were 0.95 and 0.34, respectively. On lesion-based analysis, the estimated sensitivity and specificity of FAPI were 0.84 and 0.94, and those of 18F-FDG were 0.86 and 0.78, respectively. On neck side-based analysis, the estimated sensitivity and specificity of FAPI were 0.88 and 0.79, and those of 18F-FDG were 0.91 and 0.29, respectively.</p><p><strong>Conclusions: </strong>Radiolabeled FAPI showed a good diagnostic performance for the detection of metastatic LN in HNC patients. Also, 18F-FDG PET/CT revealed low specificity for LN staging in HNC patients. Future large multicenter research with more patients would be necessary to provide a more comprehensive overview of the usefulness of radiolabeled FAPI for LN staging in HNC patients.</p>","PeriodicalId":10692,"journal":{"name":"Clinical Nuclear Medicine","volume":" ","pages":""},"PeriodicalIF":9.6,"publicationDate":"2025-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144076367","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Inflammatory 68Ga FAPI-46 Uptake Mimicking a Sister Mary Joseph's Nodule in a Case of Gastric Signet Ring Cell Carcinoma. 炎性68Ga FAPI-46摄取模拟玛丽约瑟夫修女结节一例胃印戒细胞癌。
IF 9.6 3区 医学
Clinical Nuclear Medicine Pub Date : 2025-05-14 DOI: 10.1097/RLU.0000000000005971
Zehranur Tosunoğlu, Mustafa Bozkurt, Sibel Erdamar, Erman Aytaç, Tevfik Fikret Çermik, Esra Arslan
{"title":"Inflammatory 68Ga FAPI-46 Uptake Mimicking a Sister Mary Joseph's Nodule in a Case of Gastric Signet Ring Cell Carcinoma.","authors":"Zehranur Tosunoğlu, Mustafa Bozkurt, Sibel Erdamar, Erman Aytaç, Tevfik Fikret Çermik, Esra Arslan","doi":"10.1097/RLU.0000000000005971","DOIUrl":"https://doi.org/10.1097/RLU.0000000000005971","url":null,"abstract":"<p><p>Fibroblast activation protein (FAP) is a type II transmembrane protease expressed in cancer-associated fibroblasts (CAF) that constitute a part of the tumor stroma and influence the tumor microenvironment. Although FAP is not expected to be physiologically expressed in noncancer-associated cells, it can be observed in wound healing, arthritis, atherosclerotic plaques, and fibrosis. In this case, we would like to present early-stage 68Ga FAPI-46 PET/CT inflammation findings at the trocar entry site mimicking the Sister Mary Joseph's nodule in a patient diagnosed with gastric signet ring cell carcinoma.</p>","PeriodicalId":10692,"journal":{"name":"Clinical Nuclear Medicine","volume":" ","pages":""},"PeriodicalIF":9.6,"publicationDate":"2025-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143984287","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Sacral Hemangioma Mimicking Bone Metastasis on 18F-PSMA-1007 PET/CT. 18F-PSMA-1007 PET/CT显示骶部血管瘤模拟骨转移。
IF 9.6 3区 医学
Clinical Nuclear Medicine Pub Date : 2025-05-14 DOI: 10.1097/RLU.0000000000005961
Xiaojun Man, Changming Dong, Xiandong Song, Aisheng Dong
{"title":"Sacral Hemangioma Mimicking Bone Metastasis on 18F-PSMA-1007 PET/CT.","authors":"Xiaojun Man, Changming Dong, Xiandong Song, Aisheng Dong","doi":"10.1097/RLU.0000000000005961","DOIUrl":"https://doi.org/10.1097/RLU.0000000000005961","url":null,"abstract":"<p><p>A 74-year-old man with prostate cancer was referred for an 18F-PSMA-1007 PET/CT scan for restaging due to a progressive rise in serum prostate-specific antigen levels. 18F-PSMA-1007 PET/CT showed a focal intense activity in the left sacral ala. The sacral lesion corresponded to a hemangioma, which was initially detected on pelvic MRI 6 months ago and remained stable in size. A second 18F-PSMA-1007 PET/CT performed 8 months after the first PET/CT showed no significant changes in size, density, and activity of the sacral lesion. This case indicates that hemangioma should be included in the differential diagnosis of PSMA-avid sacral lesions.</p>","PeriodicalId":10692,"journal":{"name":"Clinical Nuclear Medicine","volume":" ","pages":""},"PeriodicalIF":9.6,"publicationDate":"2025-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144076370","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
18F-FDG PET/CT and 68Ga-Pentixafor PET/CT Findings of Gastric Mucosa-associated Lymphoid Tissue Lymphoma Transformation to Diffuse Large B-cell Lymphoma. 胃黏膜相关淋巴组织淋巴瘤向弥漫性大b细胞淋巴瘤转化的18F-FDG PET/CT和68ga - pentxafor PET/CT表现
IF 9.6 3区 医学
Clinical Nuclear Medicine Pub Date : 2025-05-13 DOI: 10.1097/RLU.0000000000005957
Zitong Zhang, Hexiao Huang, Chong Jiang, Hongxi Wang, Rong Tian
{"title":"18F-FDG PET/CT and 68Ga-Pentixafor PET/CT Findings of Gastric Mucosa-associated Lymphoid Tissue Lymphoma Transformation to Diffuse Large B-cell Lymphoma.","authors":"Zitong Zhang, Hexiao Huang, Chong Jiang, Hongxi Wang, Rong Tian","doi":"10.1097/RLU.0000000000005957","DOIUrl":"https://doi.org/10.1097/RLU.0000000000005957","url":null,"abstract":"<p><p>A 66-year-old man with a pathology-confirmed gastric mucosa-associated lymphoid tissue (MALT) lymphoma underwent imaging with both 68Ga-pentixafor and 18F-FDG PET/CT. The 18F-FDG PET/CT demonstrated intense FDG uptake in the gastric lesion, whereas the 68Ga-pentixafor PET/CT showed only minimal tracer uptake. Subsequent histopathologic evaluation confirmed a transformation into aggressive diffuse large B-cell lymphoma (DLBCL). This case underscores the importance of recognizing atypical imaging patterns to identify histologic transformation and guide timely clinical intervention.</p>","PeriodicalId":10692,"journal":{"name":"Clinical Nuclear Medicine","volume":" ","pages":""},"PeriodicalIF":9.6,"publicationDate":"2025-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144076559","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Pleuropulmonary Blastoma on FDG PET/CT in a Pediatric Patient Before and After Treatment. 小儿胸膜肺母细胞瘤治疗前后的FDG PET/CT表现。
IF 9.6 3区 医学
Clinical Nuclear Medicine Pub Date : 2025-05-13 DOI: 10.1097/RLU.0000000000005958
Pensiree Attaseth, Hongming Zhuang
{"title":"Pleuropulmonary Blastoma on FDG PET/CT in a Pediatric Patient Before and After Treatment.","authors":"Pensiree Attaseth, Hongming Zhuang","doi":"10.1097/RLU.0000000000005958","DOIUrl":"https://doi.org/10.1097/RLU.0000000000005958","url":null,"abstract":"<p><p>A 5-year-old boy with right-sided chest pain and fever was diagnosed with pleuropulmonary blastoma, confirmed by thoracoscopic biopsy. Initial imaging showed a large hypermetabolic mass in the right lower lobe. After 2 cycles of chemotherapy, FDG PET/CT demonstrated significant solid component shrinkage and increased cystic airspaces with decreased hypermetabolic activity. After surgery, pathology confirmed type II pleuropulmonary blastoma. Nine months later, recurrent disease was detected on follow-up FDG PET/CT. Patient underwent further tumor resection, followed by radiation and chemotherapy. This case illustrates the evolving FDG PET/CT findings, and recurrence of pleuropulmonary blastoma after treatment.</p>","PeriodicalId":10692,"journal":{"name":"Clinical Nuclear Medicine","volume":" ","pages":""},"PeriodicalIF":9.6,"publicationDate":"2025-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143957114","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Artificial Intelligence in Sincalide-Stimulated Cholescintigraphy: A Pilot Study. 人工智能在胆碱刺激下的胆管造影：一项初步研究。
IF 9.6 3区 医学
Clinical Nuclear Medicine Pub Date : 2025-05-13 DOI: 10.1097/RLU.0000000000005967
Nghi C Nguyen, Jun Luo, Dooman Arefan, Anil K Vasireddi, Shandong Wu
{"title":"Artificial Intelligence in Sincalide-Stimulated Cholescintigraphy: A Pilot Study.","authors":"Nghi C Nguyen, Jun Luo, Dooman Arefan, Anil K Vasireddi, Shandong Wu","doi":"10.1097/RLU.0000000000005967","DOIUrl":"https://doi.org/10.1097/RLU.0000000000005967","url":null,"abstract":"<p><strong>Purpose: </strong>Sincalide-stimulated cholescintigraphy (SSC) calculates the gallbladder ejection fraction (GBEF) to diagnose functional gallbladder disorder. Currently, artificial intelligence (AI)-driven workflows that integrate real-time image processing and organ function calculation remain unexplored in nuclear medicine practice. This pilot study explored an AI-based application for gallbladder radioactivity tracking.</p><p><strong>Methods: </strong>We retrospectively analyzed 20 SSC exams, categorized into 10 easy and 10 challenging cases. Two human operators (H1 and H2) independently annotated the gallbladder regions of interest manually over the course of the 60-minute SSC. A U-Net-based deep learning model was developed to automatically segment gallbladder masks, and a 10-fold cross-validation was performed for both easy and challenging cases. The AI-generated masks were compared with human-annotated ones, with Dice similarity coefficients (DICE) used to assess agreement.</p><p><strong>Results: </strong>AI achieved an average DICE of 0.746 against H1 and 0.676 against H2, performing better in easy cases (0.781) than in challenging ones (0.641). Visual inspection showed AI was prone to errors with patient motion or low-count activity.</p><p><strong>Conclusions: </strong>This study highlights AI's potential in real-time gallbladder tracking and GBEF calculation during SSC. AI-enabled real-time evaluation of nuclear imaging data holds promise for advancing clinical workflows by providing instantaneous organ function assessments and feedback to technologists. This AI-enabled workflow could enhance diagnostic efficiency, reduce scan duration, and improve patient comfort by alleviating symptoms associated with SSC, such as abdominal discomfort due to sincalide administration.</p>","PeriodicalId":10692,"journal":{"name":"Clinical Nuclear Medicine","volume":" ","pages":""},"PeriodicalIF":9.6,"publicationDate":"2025-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143977354","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Dampening of Microglial Activation With Nasal Foralumab Administration in Moderate Alzheimer's Disease Dementia. 福鲁美单抗鼻腔给药对中度阿尔茨海默病痴呆小胶质细胞活化的抑制作用。
IF 9.6 3区 医学
Clinical Nuclear Medicine Pub Date : 2025-05-13 DOI: 10.1097/RLU.0000000000005955
Tarun Singhal, Steven Cicero, Seth A Gale, Nicolas Horan, Shipra Dubey, Gad A Marshall, Howard L Weiner
{"title":"Dampening of Microglial Activation With Nasal Foralumab Administration in Moderate Alzheimer's Disease Dementia.","authors":"Tarun Singhal, Steven Cicero, Seth A Gale, Nicolas Horan, Shipra Dubey, Gad A Marshall, Howard L Weiner","doi":"10.1097/RLU.0000000000005955","DOIUrl":"https://doi.org/10.1097/RLU.0000000000005955","url":null,"abstract":"<p><p>A 78-year-old man with moderate Alzheimer disease (AD) dementia was treated with nasal-foralumab, a fully human anti-CD3 monoclonal antibody, as part of a Food and Drug Administration expanded-access-program, based on previously demonstrated efficacy of anti-CD3 antibody in animal models. 18F-PBR06-PET, utilizing a second-generation 18-kDa-translocator-protein ligand targeting microglia, showed diffuse reduction of radiotracer uptake throughout the brain, following 3 months of nasal-foralumab compared with baseline. In particular, precuneus, posterior cingulate and anterior cingulate gyri, regions that had high levels of amyloid deposition on a baseline 18F-Florbetapir-PET scan, showed reduction in microglial activation after nasal-foralumab treatment for 3 months.</p>","PeriodicalId":10692,"journal":{"name":"Clinical Nuclear Medicine","volume":" ","pages":""},"PeriodicalIF":9.6,"publicationDate":"2025-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143977804","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Hepatic Eosinophilic Granuloma Mimicking Liver Metastases of Unknown Primary Focus on 18F-FDG and 68Ga-FAPI PET/CT. 18F-FDG和68Ga-FAPI PET/CT显示肝脏嗜酸性肉芽肿模拟未知原发灶肝转移。
IF 9.6 3区 医学
Clinical Nuclear Medicine Pub Date : 2025-05-13 DOI: 10.1097/RLU.0000000000005970
Meng Dai, Kai Yang, Xiujuan Zhao, Jingmian Zhang, Xinming Zhao
{"title":"Hepatic Eosinophilic Granuloma Mimicking Liver Metastases of Unknown Primary Focus on 18F-FDG and 68Ga-FAPI PET/CT.","authors":"Meng Dai, Kai Yang, Xiujuan Zhao, Jingmian Zhang, Xinming Zhao","doi":"10.1097/RLU.0000000000005970","DOIUrl":"https://doi.org/10.1097/RLU.0000000000005970","url":null,"abstract":"<p><p>A 53-year-old man presented with right upper abdominal pain for more than 3 weeks without an apparent cause. Multiple sequences of MR imaging detected multiple liver nodules with irregular peripheral enhancement. 18F-FDG and 68Ga-FAPI PET showed multiple elevated tracer uptake, which mimicked multiple liver metastases of unknown primary focus. Finally, the pathology of ultrasound-guided biopsy confirmed the diagnosis of hepatic eosinophilic granuloma (HEG).</p>","PeriodicalId":10692,"journal":{"name":"Clinical Nuclear Medicine","volume":" ","pages":""},"PeriodicalIF":9.6,"publicationDate":"2025-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143978961","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Rarely Seen, Highly Significant: Aberrant Distal Esophageal Artery in TARE Treatments. 食管远端动脉异常在TARE治疗中少见，但意义重大。
IF 9.6 3区 医学
Clinical Nuclear Medicine Pub Date : 2025-05-13 DOI: 10.1097/RLU.0000000000005974
Ismail Dilek, Alaaddin Nayman, Hasan Onner
{"title":"Rarely Seen, Highly Significant: Aberrant Distal Esophageal Artery in TARE Treatments.","authors":"Ismail Dilek, Alaaddin Nayman, Hasan Onner","doi":"10.1097/RLU.0000000000005974","DOIUrl":"https://doi.org/10.1097/RLU.0000000000005974","url":null,"abstract":"<p><p>Transarterial radioembolization (TARE) is a 2-stage procedure involving a simulation phase and a treatment phase. The initial phase aims to define hepatic arterial anatomy, tumor-feeding vessels, and variations, and to perform technical simulation for the treatment phase. The treatment phase involves the administration of Yttrium-90 (Y-90)-loaded microspheres. This report presents a 60-year-old man with cholangiocarcinoma, exhibiting a rare variation of a distal esophageal artery originating from the hepatic artery, detected using contrast-enhanced Cone-Beam CT during the simulation phase. SPECT after 99mTc MAA injection confirmed extrahepatic accumulation in the distal esophagus and gastric cardia.</p>","PeriodicalId":10692,"journal":{"name":"Clinical Nuclear Medicine","volume":" ","pages":""},"PeriodicalIF":9.6,"publicationDate":"2025-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143971803","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Primary Extranodal Natural Killer/T-cell Lymphoma of the Bladder on 18F-FDG PET/CT. 18F-FDG PET/CT显示原发性膀胱结外自然杀伤细胞/ t细胞淋巴瘤。
IF 9.6 3区 医学
Clinical Nuclear Medicine Pub Date : 2025-05-13 DOI: 10.1097/RLU.0000000000005956
Lulu Zhang, Jiahao Tian, He Huang
{"title":"Primary Extranodal Natural Killer/T-cell Lymphoma of the Bladder on 18F-FDG PET/CT.","authors":"Lulu Zhang, Jiahao Tian, He Huang","doi":"10.1097/RLU.0000000000005956","DOIUrl":"https://doi.org/10.1097/RLU.0000000000005956","url":null,"abstract":"<p><p>Extranodal NK/T cell lymphoma (ENKTCL) is an aggressive lymphoma associated with Epstein-Barr virus (EBV) infection, with bladder involvement being extremely rare and only a few cases reported. We present a case of a 75-year-old man with hematuria, where 18F-FDG PET/CT revealed focal bladder hypermetabolism (SUVmax: 9.7) and mural thickening. Then, histopathology confirmed ENKTCL. After chemotherapy, 18F-FDG PET/CT showed complete metabolic resolution, demonstrating the diagnostic and therapeutic monitoring value of it.</p>","PeriodicalId":10692,"journal":{"name":"Clinical Nuclear Medicine","volume":" ","pages":""},"PeriodicalIF":9.6,"publicationDate":"2025-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144062506","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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