吉林医学
吉林醫學
길림의학
JILIN MEDICAL JOURANL
2014年
23期
5094-5096
,共3页
王志龙%梁羡和%黄晓星%肖学红
王誌龍%樑羨和%黃曉星%肖學紅
왕지룡%량이화%황효성%초학홍
斜坡%磁共振成像%扩散加权成像%ADC值
斜坡%磁共振成像%擴散加權成像%ADC值
사파%자공진성상%확산가권성상%ADC치
Clivus%Magnetic resonance imaging%Diffusion weighted imaging%ADC values
目的：初步探讨正常成人斜坡骨髓3.0 T磁共振多b值DWI的ADC值与rADC。方法：采用Philips 3.0 T TX Achieva磁共振成像仪、16通道头颈神经血管线圈，对61例健康志愿者行多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ADC图，先由1名低年资、1名高年资影像医生分别对图像进行质量分级，再对入列的58例进行双盲测量斜坡骨髓、脑干ADC值，1个月后，高年资医生进行第2次测量，并以脑干ADC值作为参照，计算斜坡骨髓rADC，将所得数据进行统计学分析。结果：观察者间、观察者内测量的斜坡骨髓ADC值、rADC差异无统计学意义（P＞0.05），斜坡骨髓ADC值在观察者间、观察者内的ICC为0.938、0.965。脑干ADC值的CV：低年资者为（0.0964±0.0190）、高年资者第1次为（0.0832±0.0130）、高年资者第2次为（0.0903±0.0173），在观察者间、观察者内的ICC为0.892、0.937。结论：正常成人斜坡骨髓ADC值、rADC与脑干ADC值的测定在观察者间、观察者内具有很高的一致性。脑干ADC值具有很高的重复性，可作为斜坡骨髓rADC的可靠内源性参照。
目的：初步探討正常成人斜坡骨髓3.0 T磁共振多b值DWI的ADC值與rADC。方法：採用Philips 3.0 T TX Achieva磁共振成像儀、16通道頭頸神經血管線圈，對61例健康誌願者行多b值DWI掃描。利用隨機工作站的diffusion軟件包對原始數據進行後處理，穫取ADC圖，先由1名低年資、1名高年資影像醫生分彆對圖像進行質量分級，再對入列的58例進行雙盲測量斜坡骨髓、腦榦ADC值，1箇月後，高年資醫生進行第2次測量，併以腦榦ADC值作為參照，計算斜坡骨髓rADC，將所得數據進行統計學分析。結果：觀察者間、觀察者內測量的斜坡骨髓ADC值、rADC差異無統計學意義（P＞0.05），斜坡骨髓ADC值在觀察者間、觀察者內的ICC為0.938、0.965。腦榦ADC值的CV：低年資者為（0.0964±0.0190）、高年資者第1次為（0.0832±0.0130）、高年資者第2次為（0.0903±0.0173），在觀察者間、觀察者內的ICC為0.892、0.937。結論：正常成人斜坡骨髓ADC值、rADC與腦榦ADC值的測定在觀察者間、觀察者內具有很高的一緻性。腦榦ADC值具有很高的重複性，可作為斜坡骨髓rADC的可靠內源性參照。
목적：초보탐토정상성인사파골수3.0 T자공진다b치DWI적ADC치여rADC。방법：채용Philips 3.0 T TX Achieva자공진성상의、16통도두경신경혈관선권，대61례건강지원자행다b치DWI소묘。이용수궤공작참적diffusion연건포대원시수거진행후처리，획취ADC도，선유1명저년자、1명고년자영상의생분별대도상진행질량분급，재대입렬적58례진행쌍맹측량사파골수、뇌간ADC치，1개월후，고년자의생진행제2차측량，병이뇌간ADC치작위삼조，계산사파골수rADC，장소득수거진행통계학분석。결과：관찰자간、관찰자내측량적사파골수ADC치、rADC차이무통계학의의（P＞0.05），사파골수ADC치재관찰자간、관찰자내적ICC위0.938、0.965。뇌간ADC치적CV：저년자자위（0.0964±0.0190）、고년자자제1차위（0.0832±0.0130）、고년자자제2차위（0.0903±0.0173），재관찰자간、관찰자내적ICC위0.892、0.937。결론：정상성인사파골수ADC치、rADC여뇌간ADC치적측정재관찰자간、관찰자내구유흔고적일치성。뇌간ADC치구유흔고적중복성，가작위사파골수rADC적가고내원성삼조。
Objective To explore the ADC values and rADC of normal adult clivus marrow with 3.0T MR scanner.Methods Multi-b-value DWI was performed in 61 healthy volunteers with Philips Achieva 3.0T TX MR scanner and SENSE NeuroVascular 16 coil.Following the images were transferred to dedicated workstation,image quality were graded and the ADC values of clivus and brain stem were calculated with a junior and a senior radiologist respectively.One month later,the second ADC measurements were done by the senior radiologist. rADC was calculated by ADCclivus/ADCbrain stem.The CV were calculated to valuate the reproducibility of the measurements of ADCbrain stem,and the ICC to valuate the agreement between the intra-observer and inter-observer.Results There were 58 cases enrolled in our study. The ADCclivus were ranged between 0.14×10-3 mm2/s to 0.15×10-3 mm2/s and rADC between 0.204 to 0.219,there were no significant differences in ADCclivus and rADC between the intra-observer and inter-observer.The ICC of ADCclivus with the intra-observer and inter-observer were 0.938 and 0.965.The CV of ADCbrain stem of the junior and first and second measurements of the senior radiologist were 0.0964±0.0190,0.0832±0.0130,0.0903±0.0173,re spectively.Conclusion There are good agreement of ADCclivus,rADC and ADCbrain stem between the intra-observer and inter-observer.There are excellent reproducibility of the measurements of ADCbrain stem,brain stem could potentially be used as an internal reference parameter.
