Frontiers in nuclear medicine (Lausanne, Switzerland)最新文献

{"title":"To tell or not to tell … the patient about potential harm.","authors":"Timothy L Bartholow","doi":"10.3389/fnume.2023.1258960","DOIUrl":"10.3389/fnume.2023.1258960","url":null,"abstract":"<p><p>Extravasation, as distinct from infiltration, is when a potentially toxic agent (e.g., radiographic contrast, chemotherapy, anesthesia or radionuclide) is unintentionally administered to the surrounding tissue instead of directly into the vein. There is an expectation for vascular access in interventional medicine across nearly all specialties that this high frequency, study/treatment critical procedure needs to occur with rare failure and that this failure rate should be characterized in quality assurance. This opinion piece, written by a family practitioner who has served as the chief medical officer for a not-for-profit payer, reflects on our responsibility to be aware as clinicians of known potential harm and disclose to patients before a risk has occurred and if harm has occurred. In this paper, clinical obligations of reporting will be reviewed, which are necessary to maintain and enhance our trust with our patients. In the second half, the perspectives of a not-for-profit payer chief medical officer will be considered.</p>","PeriodicalId":73095,"journal":{"name":"Frontiers in nuclear medicine (Lausanne, Switzerland)","volume":" ","pages":"1258960"},"PeriodicalIF":0.0,"publicationDate":"2023-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11440947/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48587052","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Case report: 18F-FDG PET-CT findings in Bickerstaff encephalitis before and after treatment.","authors":"Nora E Kerik-Rotenberg, Jocelyn Cruz-Perez, Ivan E Diaz-Meneses, Alfredo Javier Aguirre Enriquez, Sarah Elizabeth González Ríos, Emilly A Cortés-Mancera, Fabio Sinisterra Solís, Francisco Romero Castellanos, Edwin Steven Vargas-Canas, Jesús Ramirez-Bermudez","doi":"10.3389/fnume.2023.1235173","DOIUrl":"10.3389/fnume.2023.1235173","url":null,"abstract":"","PeriodicalId":73095,"journal":{"name":"Frontiers in nuclear medicine (Lausanne, Switzerland)","volume":" ","pages":"1235173"},"PeriodicalIF":0.0,"publicationDate":"2023-08-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11440965/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42856277","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Theranostics in breast cancer.","authors":"M Vorster, B P Hadebe, M M Sathekge","doi":"10.3389/fnume.2023.1236565","DOIUrl":"10.3389/fnume.2023.1236565","url":null,"abstract":"<p><strong>Introduction: </strong>Breast cancer is a complex disease and constitutes the leading cause of cancer in women globally. Conventional treatment modalities include surgery, chemotherapy, radiation therapy, and hormonal therapy; all of these have their limitations and often result in significant side effects or toxicity. Targeted radionuclide therapy based on a theranostic approach has been successfully applied in several malignancies, such as prostate cancer, thyroid cancer, and neuro-endocrine tumours. Several studies have also highlighted the potential of theranostic applications in breast cancer.</p><p><strong>Aim: </strong>This review aims to provide an overview of the most promising current and future theranostic approaches in breast cancer.</p><p><strong>Discussion: </strong>The discussion includes pre-clinical as well as clinical data on some of the most successful targets used to date. Examples of potential theranostic approaches include those targeting the Human epidermal growth factor receptor 2 (HER2) expression, angiogenesis, aspects of the tumour microenvironment, Gastrin-releasing peptide receptor (GRPR), Prostate-specific membrane antigen (PSMA) and Chemokine receptor 4 (CXCR-4) expression. Several challenges to widespread clinical implementation remain, which include regulatory approval, access to the various radiopharmaceuticals and imaging technology, cost-effectiveness, and the absence of robust clinical data.</p><p><strong>Conclusion: </strong>Theranostic approaches have the potential to greatly improve diagnosis, treatment, and outcomes for patients with breast cancer. More research is needed to fully explore the potential of such approaches and to identify the best potential targets, considering feasibility, costs, efficacy, side effects and outcomes.</p>","PeriodicalId":73095,"journal":{"name":"Frontiers in nuclear medicine (Lausanne, Switzerland)","volume":" ","pages":"1236565"},"PeriodicalIF":0.0,"publicationDate":"2023-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11440857/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46884466","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Case report: Peptide receptor radioligand therapy in metastatic pediatric neuroendocrine tumors.","authors":"Khanyisile Hlongwa, Olumayowa Kolade, Abdulilah Alnabulsi, Rachelle Steyn, Anita Brink, Vikas Prasad, Stuart More","doi":"10.3389/fnume.2023.1193880","DOIUrl":"10.3389/fnume.2023.1193880","url":null,"abstract":"<p><p>Neuroendocrine tumors (NETs) are not commonly diagnosed in children. Metastatic NETs tend to have poor outcomes, and this is seen in adult and pediatric populations. The role of somatostatin receptor imaging using [⁶⁸Ga]Ga-DOTA-TATE for imaging and peptide receptor radionuclide therapy (PRRT) with [¹⁷⁷Lu]Lu-DOTA-TATE in children is currently not well established. The guidelines for treating pediatric neuroendocrine tumors are still lacking. Extensive trials have been conducted in adult patients and have demonstrated improved survival in metastatic NETs with PRRT using [¹⁷⁷Lu]Lu-DOTA-TATE. We present two pediatric patients with metastatic NETs who were imaged with [⁶⁸Ga]Ga-DOTA-TATE PET/CT and treated with [¹⁷⁷Lu]Lu-DOTA-TATE therapy.</p>","PeriodicalId":73095,"journal":{"name":"Frontiers in nuclear medicine (Lausanne, Switzerland)","volume":" ","pages":"1193880"},"PeriodicalIF":0.0,"publicationDate":"2023-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11440991/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42327936","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Critique and discussion of \"Multicenter evaluation of frequency and impact of activity infiltration in PET imaging, including microscale modeling of skin-absorbed dose\".","authors":"Josh Knowland","doi":"10.3389/fnume.2023.1240162","DOIUrl":"10.3389/fnume.2023.1240162","url":null,"abstract":"","PeriodicalId":73095,"journal":{"name":"Frontiers in nuclear medicine (Lausanne, Switzerland)","volume":" ","pages":"1240162"},"PeriodicalIF":0.0,"publicationDate":"2023-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11440859/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47872118","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A systematic evaluation of five different image-derived input functions for the clinical implementation of ¹⁸F-NaF bone PET/CT in patients with chronic kidney disease-mineral and bone disorder.","authors":"Jørn Theil, Marie Houmaa Vrist, Jesper Nørgaard Bech, Claire Anne Fynbo","doi":"10.3389/fnume.2023.1235800","DOIUrl":"10.3389/fnume.2023.1235800","url":null,"abstract":"<p><strong>Introduction: </strong>The aim of this study was to investigate the impact of the use of varying input parameters on resulting bone plasma clearance (<i>K_i</i> ) and other kinetic modelling parameters in a group of patients with chronic kidney disease-mineral and bone disorder (CKD-MBD).</p><p><strong>Methods: </strong>Raw PET/CT data and blood data were systematically analyzed using five different VOIs for the input functions in the left ventricle and in the thoracic aorta. Standardized VOIs were placed in four thoracic vertebrae and the results pooled and averaged. The basic image-derived input functions (IDIFs) were corrected for partial volume effect and spill-over and modified by substitution of the terminal image exponential with the corresponding plasma-exponentials derived from blood samples. <i>K_i</i> was then calculated using both a non-linear regression (NLR) analysis and a graphical Patlak analysis and compared.</p><p><strong>Results: </strong>Our original results were reproducible with an inter-observer difference of approximately 6%. The correction factors varied with the VOI volumes from 0.73 ± 0.17 for the largest LV-VOI (48.7 ± 25.3 cm³) to 0.99 ± 0.10 for the AO-VOI (3.4 ± 1.2 cm³). The mean NLR-<i>K_i</i> results varied between 0.0378 ± 0.0112 and 0.0432 ± 0.0095 ml/min ml^-1 with a fixed vB and 0.0408 ± 0.0111 and 0.045 ± 0.0102 ml/min ml^-1 with a free-fitted vB. The corresponding Patl-<i>K_i</i> -results varied between 0.0302 ± 0.0071 and 0.0325 ± 0.0070 ml/min ml^-1, having lesser differences and variances. The input functions with least variance and mean differences compared with NLR results were derived from the left ventricle with a VOI volume of 19.2 ± 11.3 cm³ corrected for PVE and Bg with a mean <i>K_i</i> -difference: 0.0097 ± 0.0370 ml/min ml^-1 and 95% confidence limits (-0.023 to 0.004).</p><p><strong>Conclusions: </strong>Our results indicated that a VOI with a volume of approximately 20 cm³ with a correction factor of 0.83 ± 0.13 results in Patlak results with the least variance and difference compared with the NLR results. The use of free-fitted vB in the NLR analysis showed the most robust results in all input series. The Patlak results were in comparison generally lower than the NLR results (-17.3% to -23.4%) but very robust across the various input series and with results comparable to previously published data and are therefore recommended for future analysis.</p>","PeriodicalId":73095,"journal":{"name":"Frontiers in nuclear medicine (Lausanne, Switzerland)","volume":" ","pages":"1235800"},"PeriodicalIF":0.0,"publicationDate":"2023-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11440843/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47993058","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Gallium-68 fibroblast activation protein inhibitor positron emission tomography in cardiovascular disease.","authors":"Dineo Mpanya, Mike Sathekge, Eric Klug, Jenna Damelin, Stuart More, Bawinile Hadebe, Mariza Vorster, Nqoba Tsabedze","doi":"10.3389/fnume.2023.1224905","DOIUrl":"10.3389/fnume.2023.1224905","url":null,"abstract":"<p><p>Gallium-68 fibroblast activation protein inhibitor [(⁶⁸Ga)Ga-FAPI] is a new radiopharmaceutical positioning itself as the preferred agent in patients with malignant tumours, competing with 2-Deoxy-2-[18F]fluoro-d-glucose [2-(¹⁸F)FDG] using positron emission tomography (PET). While imaging oncology patients with [⁶⁸Ga]Ga-FAPI PET, incidental uptake of [⁶⁸Ga]Ga-FAPI has been detected in the myocardium. This review summarises original research studies associating the visualisation of FAPI-based tracers in the myocardium with underlying active cardiovascular disease.</p>","PeriodicalId":73095,"journal":{"name":"Frontiers in nuclear medicine (Lausanne, Switzerland)","volume":" ","pages":"1224905"},"PeriodicalIF":0.0,"publicationDate":"2023-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11440833/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43169872","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Biodosimetry, can it find its way to the nuclear medicine clinic?","authors":"Julie Bolcaen, Nastassja Combrink, Kaat Spoormans, Stuart More, Charlot Vandevoorde, Randall Fisher, Janke Kleynhans","doi":"10.3389/fnume.2023.1209823","DOIUrl":"10.3389/fnume.2023.1209823","url":null,"abstract":"<p><p>Personalised dosimetry based on molecular imaging is a field that has grown exponentially in the last decade due to the increasing success of Radioligand Therapy (RLT). Despite advances in imaging-based 3D dose estimation, the administered dose of a therapeutic radiopharmaceutical for RLT is often non-personalised, with standardised dose regimens administered every 4-6 weeks. Biodosimetry markers, such as chromosomal aberrations, could be used alongside image-based dosimetry as a tool for individualised dose estimation to further understand normal tissue toxicity and refine the administered dose. In this review we give an overview of biodosimetry markers that are used for blood dose estimation, followed by an overview of their current results when applied in RLT patients. Finally, an in-depth discussion will provide a perspective on the potential for the use of biodosimetry in the nuclear medicine clinic.</p>","PeriodicalId":73095,"journal":{"name":"Frontiers in nuclear medicine (Lausanne, Switzerland)","volume":" ","pages":"1209823"},"PeriodicalIF":0.0,"publicationDate":"2023-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11440959/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41972154","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Radiopharmaceutical extravasations: a twenty year mini-review.","authors":"Dustin R Osborne","doi":"10.3389/fnume.2023.1219202","DOIUrl":"10.3389/fnume.2023.1219202","url":null,"abstract":"<p><p>Interest and research into radiopharmaceutical extravasation concepts has risen with the increase in use of radiopharmaceutical therapies, growing access to novel molecular imaging agents, and recent regulatory controversies. This mini-review will examine the literature of the last twenty years to summarize the history of radiopharmaceutical extravasations, determine key trends in imaging and therapies, and highlight critical gaps in research that currently exist. The intent of this work is to provide a summary of this complex topic that helps build awareness and promotes new innovations in this interesting aspect of theranostic radiopharmaceuticals.</p>","PeriodicalId":73095,"journal":{"name":"Frontiers in nuclear medicine (Lausanne, Switzerland)","volume":"1 1","pages":"1219202"},"PeriodicalIF":0.0,"publicationDate":"2023-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11459986/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41644121","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Tumor microenvironment and fibroblast activation protein inhibitor (FAPI) PET: developments toward brain imaging.","authors":"Mehdi Djekidel, Rahaf Alsadi, Maya Abi Akl, Othmane Bouhali, Jim O'Doherty","doi":"10.3389/fnume.2023.1183471","DOIUrl":"10.3389/fnume.2023.1183471","url":null,"abstract":"<p><p>Fibroblast activation protein (FAP) is a type-II membrane bound glycoprotein specifically expressed by activated fibroblasts almost exclusively in pathological conditions including arthritis, fibrosis and cancer. FAP is overexpressed in cancer-associated fibroblasts (CAFs) located in tumor stroma, and is known to be involved in a variety of tumor-promoting activities such as angiogenesis, proliferation, resistance to chemotherapy, extracellular matrix remodeling and immunosuppression. In most cancer types, higher FAP expression is associated with worse clinical outcomes, leading to the hypothesis that FAP activity is involved in cancer development, cancer cell migration, and cancer spread. Recently, various high selectivity FAP inhibitors (FAPIs) have been developed and subsequently used for positron emission tomography (PET) imaging of different pathologies. Considering the paucity of widely available and especially mainstream reliable radioligands in brain cancer PET imaging, and the poor survival rates of patients with certain types of brain cancer such as glioblastoma, FAPI-PET represents a major development in enabling the detection of small primary or metastatic lesions in the brain due to its biological characteristics and low background accumulation. In this work, we aim to summarize the potential avenues for use of FAPI-PET, from the basic biological processes to oncologic imaging and with a main focus on brain imaging.</p>","PeriodicalId":73095,"journal":{"name":"Frontiers in nuclear medicine (Lausanne, Switzerland)","volume":" ","pages":"1183471"},"PeriodicalIF":0.0,"publicationDate":"2023-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11440979/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48282309","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}