این سایت در حال حاضر پشتیبانی نمی شود و امکان دارد داده های نشریات بروز نباشند
Iranian Journal of Medical Physics، جلد ۱۹، شماره ۵، صفحات ۳۱۵-۳۲۱
عنوان فارسی
چکیده فارسی مقاله
کلیدواژه‌های فارسی مقاله
عنوان انگلیسی Evaluation of Size-Specific Dose Estimates for Optimizing Pediatric Chest CT Protocol
چکیده انگلیسی مقاله Introduction: The importance of estimating patient-sized adjusted radiation dose for pediatric computed tomography (CT) has long been accepted. High doses of ionizing radiation to children are often common in chest CT examinations, as the volume CT dose index (CTDIvol) is measured by a 32 cm phantom. Our study aimed to evaluate the effectiveness of size-specific dose estimate (SSDE) to compensate for the underestimated pediatric absorbed dose. Material and Methods: CTDIvol and dose-length product (DLP) of 320 pediatric chest CT (< 1, 1-5, 5-10, 10-15 years) were obtained from Picture-Archiving and Communication System (PACS) in a hospital affiliated with the Shiraz University of Medical Sciences. CTDIvol was converted to SSDE based on the patient's effective diameter. The Statistical Package for Social Science (SPSS) was used for data analysis. Results: The variations between standard phantom (32cm) and the patients' mean effective diameter were approximately 65%, 57%, 47%, and 38%, across < 1, 1-5, 5-10, 10-15 year age groups, respectively. The mean of SSDE for each age group was significantly higher than the corresponding CTDIvol values. Also, mean CTDIvol and SSDE values differed between age groups significantly (p< 0.001). Results showed a strong correlation between age and the two-dose indicators, CTDIvol (0.361) and SSDE (0.184), with p< 0.05. Conclusion: Pediatrics receive radiation doses comparable to the dose for adult-sized patients in chest CT protocol if the dosimetry procedure is not individualized. Thus, applying a size-based conversion coefficient is paramount in estimating the absorbed dose in pediatric chest CT. 
کلیدواژه‌های انگلیسی مقاله X, ray Computed Tomography Chest Size, Specific Dose Estimate (SSDE) Paediatric
نویسندگان مقاله | Fariba Zarei
Medical Imaging Research Center, Shiraz University of Medical Sciences, Shiraz, Iran Department of Radiology, School of Medicine, Shiraz University of Medical Sciences, Shiraz 7134845794, Iran.


| Mahdokht Nasiri
Department of Radiology, School of Medicine, Shiraz University of Medical Sciences, Shiraz 7134845794, Iran.


| Zahra Etemadi
Medical Imaging Research Center, Shiraz University of Medical Sciences, Shiraz 7134845794, Iran


| Rezvan Ravanfar Haghighi
Medical Imaging Research Center, Shiraz University of Medical Sciences, Shiraz, Iran


| Sabysachi chatterjee
Retired Scientist from Indian Institute of Astrophysics, present affiliation: Ongil, 79 D3, Sivaya Nagar, Reddiyur Alagapuram, Salem 636004. India


| Pouria Abdollahi Khaneghah
Department of Radiology, Shiraz University of Medical Sciences, Shiraz 7134845794, Iran


| Vani Vardhan Chatterjee
Department of Instrumentation and Applied Physics, Indian Institute of Science, Bangalore 560012. INDIA
نشانی اینترنتی https://ijmp.mums.ac.ir/article_18925.html
فایل مقاله فایلی برای مقاله ذخیره نشده است
کد مقاله (doi)
زبان مقاله منتشر شده en
موضوعات مقاله منتشر شده
نوع مقاله منتشر شده Original Paper
برگشت به: صفحه اول پایگاه   |   نسخه مرتبط   |   نشریه مرتبط   |   فهرست نشریات