Journal of nuclear medicine technology最新文献_第3页

Patient Motion During Cardiac PET Imaging. 心脏PET成像时患者的运动。

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Journal of nuclear medicine technology Pub Date : 2025-06-04 DOI: 10.2967/jnmt.125.269911

Sunil R Selvin, Erin Stevens, Mary Beth Farrell, Gary V Heller

引用次数: 0

Empowering Technologists, Elevating Care. 授权技术人员，提升护理水平。

IF 1

Journal of nuclear medicine technology Pub Date : 2025-06-04

Julie Dawn Bolin

引用次数: 0

Myocardial Sympathetic Innervation Imaging. 心肌交感神经成像。

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Journal of nuclear medicine technology Pub Date : 2025-06-04 DOI: 10.2967/jnmt.125.270093

Justin G Peacock, Mary Beth Farrell

引用次数: 0

The SNMMI/ACNM Practice Guideline for the Use of Radiopharmaceuticals 5.0. SNMMI/ACNM放射性药物使用实践指南5.0。

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Journal of nuclear medicine technology Pub Date : 2025-06-04 DOI: 10.2967/jnmt.125.269834

Kara Weatherman, Erin Elizabeth Grady, Nic Mastascusa, Sara Johnson, George H Hinkle, Richard Laforest, Chloee Wendorf, Kathy S Thomas

引用次数: 0

Illuminating the Hidden: Standardizing Cardiac MIBG Imaging for Sympathetic Dysfunction. 照亮隐藏：规范心脏交感功能障碍的MIBG成像。

IF 1

Journal of nuclear medicine technology Pub Date : 2025-06-04 DOI: 10.2967/jnmt.124.269436

Justin G Peacock, Haley Majot, Avani T Bansal, Patrick Neshiwat, Kelsy Dimeff, Kalpna Prasad

{"title":"Illuminating the Hidden: Standardizing Cardiac MIBG Imaging for Sympathetic Dysfunction.","authors":"Justin G Peacock, Haley Majot, Avani T Bansal, Patrick Neshiwat, Kelsy Dimeff, Kalpna Prasad","doi":"10.2967/jnmt.124.269436","DOIUrl":"10.2967/jnmt.124.269436","url":null,"abstract":"The heart's innervation relies on a delicate balance between the sympathetic and parasympathetic nervous systems, each using distinct neurotransmitters to regulate heart rate, contractility, and vascular tone. The sympathetic division primarily uses norepinephrine, whereas the parasympathetic division operates through acetylcholine. A range of diseases, through intrinsic and extrinsic mechanisms, can disrupt these neural pathways, resulting in autonomic dysfunction. This review highlights intrinsic causes such as dysautonomias, amyloidosis, diabetes mellitus, Parkinsonian syndromes, and Lewy body dementia, as well as extrinsic factors such as heart failure, myocardial ischemia, infarction, and drug-induced cardiotoxicity. This article examines the effects of various conditions on cardiac sympathetic innervation and highlights how 123I-radiolabeled metaiodobenzylguanidine (MIBG), a norepinephrine analog, can target the cardiac sympathetic nervous system for early detection and disease characterization. Currently, variability in cardiac 123I-MIBG imaging protocols across institutions leads to inconsistencies in image acquisition and interpretation, limiting the establishment of universal benchmarks for distinguishing normal from abnormal cardiac sympathetic innervation. To address this, we propose a simple, clinically useful, standardized protocol based on European Association of Nuclear Medicine guidelines and the AdreView Myocardial Imaging for Risk Evaluation in Heart Failure trial, incorporating both qualitative and semiquantitative methods for disease assessment and highlight cutoff values for some pathologies that can assist in visual interpretation. Standardizing these protocols will enhance the consistency, reliability, and diagnostic accuracy of 123I-MIBG imaging, improving clinical decision-making and optimizing patient outcomes.","PeriodicalId":16548,"journal":{"name":"Journal of nuclear medicine technology","volume":" ","pages":"90-100"},"PeriodicalIF":1.0,"publicationDate":"2025-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12176009/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144030394","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}

引用次数: 0

Gender and Ethnicity Bias of Text-to-Image Generative Artificial Intelligence in Medical Imaging, Part 2: Analysis of DALL-E 3. 医学影像中文本到图像生成人工智能的性别和种族偏差，第 2 部分：《DALL-E 3》分析。

IF 1

Journal of nuclear medicine technology Pub Date : 2025-06-04 DOI: 10.2967/jnmt.124.268359

Geoffrey Currie, Johnathan Hewis, Elizabeth Hawk, Eric Rohren

{"title":"Gender and Ethnicity Bias of Text-to-Image Generative Artificial Intelligence in Medical Imaging, Part 2: Analysis of DALL-E 3.","authors":"Geoffrey Currie, Johnathan Hewis, Elizabeth Hawk, Eric Rohren","doi":"10.2967/jnmt.124.268359","DOIUrl":"10.2967/jnmt.124.268359","url":null,"abstract":"Disparity among gender and ethnicity remains an issue across medicine and health science. Only 26%-35% of trainee radiologists are female, despite more than 50% of medical students' being female. Similar gender disparities are evident across the medical imaging professions. Generative artificial intelligence text-to-image production could reinforce or amplify gender biases. Methods: In March 2024, DALL-E 3 was utilized via GPT-4 to generate a series of individual and group images of medical imaging professionals: radiologist, nuclear medicine physician, radiographer, nuclear medicine technologist, medical physicist, radiopharmacist, and medical imaging nurse. Multiple iterations of images were generated using a variety of prompts. Collectively, 120 images were produced for evaluation of 524 characters. All images were independently analyzed by 3 expert reviewers from medical imaging professions for apparent gender and skin tone. Results: Collectively (individual and group images), 57.4% (n = 301) of medical imaging professionals were depicted as male, 42.4% (n = 222) as female, and 91.2% (n = 478) as having a light skin tone. The male gender representation was 65% for radiologists, 62% for nuclear medicine physicians, 52% for radiographers, 56% for nuclear medicine technologists, 62% for medical physicists, 53% for radiopharmacists, and 26% for medical imaging nurses. For all professions, this overrepresents men compared with women. There was no representation of persons with a disability. Conclusion: This evaluation reveals a significant overrepresentation of the male gender associated with generative artificial intelligence text-to-image production using DALL-E 3 across the medical imaging professions. Generated images have a disproportionately high representation of white men, which is not representative of the diversity of the medical imaging professions.","PeriodicalId":16548,"journal":{"name":"Journal of nuclear medicine technology","volume":" ","pages":"162-168"},"PeriodicalIF":1.0,"publicationDate":"2025-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142502306","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Improvement of Anatomic Alignment and Image Quality Using a Respiratory Motion Reduction Block in Oncologic PET/CT. 使用呼吸运动减少块改善肿瘤PET/CT解剖对齐和图像质量。

IF 1

Journal of nuclear medicine technology Pub Date : 2025-06-04 DOI: 10.2967/jnmt.124.269096

Hajime Ichikawa, Takayuki Shibutani, Toyohiro Kato, Tomoya Banno, Mitsuaki Terabe, Hideki Shimada

{"title":"Improvement of Anatomic Alignment and Image Quality Using a Respiratory Motion Reduction Block in Oncologic PET/CT.","authors":"Hajime Ichikawa, Takayuki Shibutani, Toyohiro Kato, Tomoya Banno, Mitsuaki Terabe, Hideki Shimada","doi":"10.2967/jnmt.124.269096","DOIUrl":"10.2967/jnmt.124.269096","url":null,"abstract":"18F-FDG PET/CT is crucial for cancer diagnosis; however, respiratory motion often causes misregistration between PET and CT images. This study aimed to evaluate the impact of a custom-made respiratory motion reduction block (RRB) in reducing misregistration and improving image quality in 18F-FDG PET/CT. Methods: The RRB was developed to minimize the effects of respiratory motion. It is a pentagonal block made of Styrofoam designed to compress the upper abdomen. This study included 170 patients who underwent whole-body 18F-FDG PET/CT. Patients were categorized into 4 groups based on the CT and PET scanning technique used: a control free-breathing (FB) group (breath-holding [BH] CT without RRB and respiration-gated [RG] PET), a control RG group (BH CT without RRB with RG PET), a BH RRB group (BH CT with RRB), and a FB RRB group (FB CT with RRB). Various parameters, including the incidence rate and distance of anatomic misregistration, and signal-to-noise ratio, were measured and compared. Results: For the control FB, control RG, BH RRB, and FB RRB groups, the incidence rates of anatomic misregistration between PET and CT images were 47.1%, 27.5%, 34.0%, and 16.7%, respectively. The mean misregistration distances in these groups were 5.1 ± 6.0, 3.1 ± 5.5, 3.8 ± 6.2, and 1.3 ± 3.2 mm, respectively. Furthermore, the RRB improved the signal-to-noise ratio of the liver. Conclusion: The RRB effectively improved registration between PET and CT images. Our approach is cost-effective and provides respiratory motion suppression not only during PET but also during CT scans. The use of RRB with FB PET scanning was found to be more beneficial than respiratory gating.","PeriodicalId":16548,"journal":{"name":"Journal of nuclear medicine technology","volume":" ","pages":"146-151"},"PeriodicalIF":1.0,"publicationDate":"2025-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143557215","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Recognizing and Responding to the Acute Cardiac Stress Patient. 认识和应对急性心脏应激病人。

IF 1

Journal of nuclear medicine technology Pub Date : 2025-06-04 DOI: 10.2967/jnmt.125.269450

Geoffrey Currie, Hosen Kiat

引用次数: 0

Technegas Ventilation Lung Imaging in the United States. 美国的Technegas通气肺成像。

IF 1

Journal of nuclear medicine technology Pub Date : 2025-06-04 DOI: 10.2967/jnmt.125.269774

Kathy S Thomas, Tina M Buehner

引用次数: 0

PET/CT Case Series: Unmasking the Mystery of Cardiac Sarcoidosis. PET/CT病例系列：揭开心脏结节病的神秘面纱。