CAJ | 학술논문

目的：探讨健康成人枕骨斜坡骨髓3．0T磁共振多b值扩散加权成像（DWI）的可行性。方法采用Philips 3．0T TX Achieva磁共振成像仪、16通道头颈神经血管线圈，对61名健康志愿者行多b值DWI扫描。利用随机工作站的diffusion软件包对原始数据进行后处理，获取表观扩散系数（ADC）图，由1名工作未满2年的低年资、1名工作满10年的高年资影像医生，先对图像进行质量分级，对入选的58例进行双盲测量枕骨斜坡骨髓的ADC值及其面积，1个月后，高年资医生进行第2次测量，将所得数据进行统计学分析。结果 ADC图的图像质量分级：Ⅰ级42例、Ⅱ级16例、Ⅲ级3例，优良率约95%（58/61）。不同年资者之间、高年资者2次测量枕骨斜坡骨髓ADC值的差异均无统计学意义（P＞0．05），而测量面积的差异均有统计学意义（P＜0．05）。结论健康成人枕骨斜坡骨髓3．0T磁共振多b值DWI图像质量良好，ADC值测量在观察者间、观察者内具有很高的一致性和可行性。
목적：탐토건강성인침골사파골수3．0T자공진다b치확산가권성상（DWI）적가행성。방법채용Philips 3．0T TX Achieva자공진성상의、16통도두경신경혈관선권，대61명건강지원자행다b치DWI소묘。이용수궤공작참적diffusion연건포대원시수거진행후처리，획취표관확산계수（ADC）도，유1명공작미만2년적저년자、1명공작만10년적고년자영상의생，선대도상진행질량분급，대입선적58례진행쌍맹측량침골사파골수적ADC치급기면적，1개월후，고년자의생진행제2차측량，장소득수거진행통계학분석。결과 ADC도적도상질량분급：Ⅰ급42례、Ⅱ급16례、Ⅲ급3례，우량솔약95%（58/61）。불동년자자지간、고년자자2차측량침골사파골수ADC치적차이균무통계학의의（P＞0．05），이측량면적적차이균유통계학의의（P＜0．05）。결론건강성인침골사파골수3．0T자공진다b치DWI도상질량량호，ADC치측량재관찰자간、관찰자내구유흔고적일치성화가행성。
Objective To explore the feasibility of ADC measurements of normal adult clivus marrow with 3.0T MR scanner. Methods Multi-b-value DWI was performed in 61 healthy volunteers with Philips 3.0T MRI. Following the images were transferred to dedicated workstation, image quality was graded and ADC value was calculated by a junior and a senior radiologists respectively. One month later, the second ADC measurements were done by the senior radiologist. Results The images were both graded asⅠfor 42 cases, Ⅱfor 16 cases andⅢfor 3 cases, with an eligi-ble rate of 95%(58/61). There were 58 cases enrolled in our study. There were no significant differences between the intra-observer and inter-observer. Conclusion The image quality of multi-b-value DWI with 3.0T MR scanner in clivus bone marrow of normal adult is desirable. And ADC values have good agreement and feasibility between the in-tra-observer and inter-observer.