中国医学装备
中國醫學裝備
중국의학장비
CHINA MEDICAL EQUIPMENT
2015年
6期
57-61
,共5页
正电子发射断层摄影术%体层摄影术,X射线计算机%图像质量%辐射剂量%仿真人体模型
正電子髮射斷層攝影術%體層攝影術,X射線計算機%圖像質量%輻射劑量%倣真人體模型
정전자발사단층섭영술%체층섭영술,X사선계산궤%도상질량%복사제량%방진인체모형
Positron-emission tomography%Tomography,X-ray computed%Image quality%Radiation dose%Anthropomorphic phantom
临床PET/CT多为全身扫描，患者所受的辐射剂量较大，其中CT的剂量占较大的比例，因此如何保证临床对图像质量的要求下控制PET/CT中CT的剂量尤为重要。仿真人体等效模型是研究PET/CT中CT图像质量及辐射剂量的最佳选择。为此，对仿真人体等效模型及利用该模体对PET/CT图像质量及辐射剂量的研究进行综述，并对PET/CT中CT图像质量及辐射剂量之间的关系进行分析和讨论。
臨床PET/CT多為全身掃描，患者所受的輻射劑量較大，其中CT的劑量佔較大的比例，因此如何保證臨床對圖像質量的要求下控製PET/CT中CT的劑量尤為重要。倣真人體等效模型是研究PET/CT中CT圖像質量及輻射劑量的最佳選擇。為此，對倣真人體等效模型及利用該模體對PET/CT圖像質量及輻射劑量的研究進行綜述，併對PET/CT中CT圖像質量及輻射劑量之間的關繫進行分析和討論。
림상PET/CT다위전신소묘，환자소수적복사제량교대，기중CT적제량점교대적비례，인차여하보증림상대도상질량적요구하공제PET/CT중CT적제량우위중요。방진인체등효모형시연구PET/CT중CT도상질량급복사제량적최가선택。위차，대방진인체등효모형급이용해모체대PET/CT도상질량급복사제량적연구진행종술，병대PET/CT중CT도상질량급복사제량지간적관계진행분석화토론。
Whole-body PET/CT scanning is accompanied by substantial radiation dose in clinic. A large proportion of the radiation dose for examination obtained from whole-boby PET/CT is from CT scan. So how to control radiation dose without impairing CT image quality determined by the clinic is particularly important. Anthropomorphic phantom is the best choice for the study of radiation dose and image quality in PET/CT. The article reviews the meaning of anthropomorphic phantom and the study about PET/CT image quality and radiation dose with the phantom, Then analyzes the relationship between image quality of CT in PET/CT and radiation dose in the practical application.
