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Iranian Journal of Nuclear Medicine، جلد ۲۵، شماره Supplement ۱، صفحات ۵۲-۶۱
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عنوان انگلیسی Factors influencing the pattern and intensity of myocardial 18F-FDG uptake in oncologic PET-CT imaging
چکیده انگلیسی مقاله Introduction:Myocardial 18F-FDG uptake is highly variable in oncologic whole body 18F-FDG PET/CT studies, ranging from quite intense to minimal distribution. Intense or heterogeneous myocardial 18F-FDG uptake is undesirable as it may interfere with the visual or quantitative evaluation of tumoral invasion and metastases in pericardium, myocardium or adjacent mediastinal structures. The diet, as well as many other factors, is assumed to influence the myocardial 18F-FDG uptake. Using a multivariate model, we tried to identify and predict the main factors influencing cardiac 18F-FDG uptake in patients referred for oncologic PET/CT evaluation. Methods: A total of 214 patients referred for oncologic 18F-FDG PET/CT scan were enrolled in our study. Patients were randomly allocated into two groups according to the diet they were instructed to follow during 24-hour period before imaging. One hundred and seven cases with a routine diet (RD) and the same number of patients with a low carbohydrate, high fat (LCHF) diet were included. All patients were fast 6 hours before imaging. Weight, height, blood glucose, heart rate, systolic and diastolic blood pressure were measured before radiotracer injection. Visual and quantitative analysis were done after imaging and the pattern of 18F-FDG uptake, as well as standardized quantitative value of cardiac uptake was determined for each case. Results: The frequency of undesirable cardiac 18F-FDG uptake in the LCHF group was significantly less than RD group (17% vs. 72%, p=30 as well as consumption of cardiotoxic chemotherapeutic agents, benzodiazepines and β blockers were significantly associated with higher intensity of myocardial 18F-FDG uptake, while this undesirable finding was less evident in cases with diabetes mellitus. A multivariate logistic regression model including all of the mentioned variables revealed the diet was the only significant independent factor that predicted undesirable myocardial 18F-FDG uptake (p
کلیدواژه‌های انگلیسی مقاله 18F-FDG,Myocardial uptake,SUVmax,PET/CT,Oncology,Imaging
نویسندگان مقاله بابک فلاحی |
research center for nuclear medicine, shariati hospital, tehran university of medical sciences, tehran, iran
سازمان اصلی تایید شده: دانشگاه علوم پزشکی تهران (Tehran university of medical sciences)

بهار موسس غفاری | moasses ghafari
research center for nuclear medicine, shariati hospital, tehran university of medical sciences, tehran, iran
سازمان اصلی تایید شده: دانشگاه علوم پزشکی تهران (Tehran university of medical sciences)

ارمغان فرد اصفهانی | fard esfahani
research center for nuclear medicine, shariati hospital, tehran university of medical sciences, tehran, iran
سازمان اصلی تایید شده: دانشگاه علوم پزشکی تهران (Tehran university of medical sciences)

پرهام گرامی فر |
research center for nuclear medicine, shariati hospital, tehran university of medical sciences, tehran, iran
سازمان اصلی تایید شده: دانشگاه علوم پزشکی تهران (Tehran university of medical sciences)

داود بیکی |
research center for nuclear medicine, shariati hospital, tehran university of medical sciences, tehran, iran
سازمان اصلی تایید شده: دانشگاه علوم پزشکی تهران (Tehran university of medical sciences)

علیرضا امامی اردکانی | emami ardekani
research center for nuclear medicine, shariati hospital, tehran university of medical sciences, tehran, iran
سازمان اصلی تایید شده: دانشگاه علوم پزشکی تهران (Tehran university of medical sciences)

محمد افتخاری |
research center for nuclear medicine, shariati hospital, tehran university of medical sciences, tehran, iran
سازمان اصلی تایید شده: دانشگاه علوم پزشکی تهران (Tehran university of medical sciences)

نشانی اینترنتی http://irjnm.tums.ac.ir/article_23663_55854a10d2281c7f9016ccb844ae2dcd.pdf
فایل مقاله اشکال در دسترسی به فایل - ./files/site1/rds_journals/57/article-57-316192.pdf
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