Estimation of patient radiation dose from whole body 18F- FDG PET/CT examination in cancer imaging: a preliminary study

9th National Seminar on Medical Physics

物理学;医药卫生

Mahmud, M.H.^1,2 ; Nordin, A.J.^2 ; Saad, F. F. Ahmad^2 ; Azman, A. Z. Fattah^3

Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, UPM Serdang, Selangor

43400, Malaysia^1

Centre for Diagnostic Nuclear Imaging, Universiti Putra Malaysia, UPM Serdang, Selangor

43400, Malaysia^2

Department of Community Health, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, UPM Serdang, Selangor

43400, Malaysia^3

关键词: Cancer imaging;    Cancer staging;    Dose coefficients;    Effective dose;    Inter quartile ranges;    Kruskal-Wallis tests;    Patient radiation dose;    Statistically significant difference;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/546/1/012008/pdf
DOI  :  10.1088/1742-6596/546/1/012008

学科分类：卫生学

来源: IOP

【 摘 要 】

This study aims to estimate the radiation effective dose resulting from whole body fluorine-18 flourodeoxyglucose Positron Emission Tomography (18F-FDG PET) scanning as compared to conservative Computed Tomography (CT) techniques in evaluating oncology patients. We reviewed 19 oncology patients who underwent18F-FDG PET/CT at our centre for cancer staging. Internal and external doses were estimated using radioactivity of injected FDG and volume CT Dose Index (CTDIvol), respectively with employment of the published and modified dose coefficients. The median differences of dose among the conservative CT and PET protocols were determined using Kruskal Wallis test with p 18F-FDG PET technique may be effective the lowest amongst the conventional CT imaging techniques.