重庆医学
重慶醫學
중경의학
CHONGQING MEDICAL JOURNAL
2014年
27期
3602-3604,3607
,共4页
磁共振成像%弥散登记%DTI
磁共振成像%瀰散登記%DTI
자공진성상%미산등기%DTI
magnetic resonance image%diffusion registration%diffusion tensor image
目的：通过对比磁共振弥散张量成像（DTI）数据进行两种处理后获得的ADC值、eADC值、FA值和可视神经纤维长度，研究弥散登记在磁共振DTI中的应用价值。方法对20例进行磁共振DTI者的资料进行回顾性分析，分别应用原始数据直接处理获得ADC值、eADC值和FA值，施加弥散登记处理后再进行ADC值、eADC值和FA值测量，同时对两种不同处理方式进行纤维示踪成像，分别比较每例研究者的ADC值、eADC值和FA值在施加弥散登记前后变化，同时比较在施加弥散登记前后纤维示踪图像上相同兴趣区测量所得纤维束长度差异。结果健康对照组施加弥散登记处理前后获得ADC值、eADC值差异无统计学意义（P＝0．6953，P＝0．6321），FA值差异有统计学意义（P＝0．0321）；研究组施加弥散登记处理前后获得ADC值、eADC值差异无明显统计学意义（P＝0．2039，P＝0．0754），FA值差异有统计学意义（P＝0．0114），施加弥散登记后可视纤维束变长。结论弥散登记处理可获得较好质量的ADC图、eADC图、FA图和纤维示踪图，并获得更为可靠的 ADC值、eADC值和FA值。可见纤维束长度变长，在磁共振DTI中有较大应用价值。
目的：通過對比磁共振瀰散張量成像（DTI）數據進行兩種處理後穫得的ADC值、eADC值、FA值和可視神經纖維長度，研究瀰散登記在磁共振DTI中的應用價值。方法對20例進行磁共振DTI者的資料進行迴顧性分析，分彆應用原始數據直接處理穫得ADC值、eADC值和FA值，施加瀰散登記處理後再進行ADC值、eADC值和FA值測量，同時對兩種不同處理方式進行纖維示蹤成像，分彆比較每例研究者的ADC值、eADC值和FA值在施加瀰散登記前後變化，同時比較在施加瀰散登記前後纖維示蹤圖像上相同興趣區測量所得纖維束長度差異。結果健康對照組施加瀰散登記處理前後穫得ADC值、eADC值差異無統計學意義（P＝0．6953，P＝0．6321），FA值差異有統計學意義（P＝0．0321）；研究組施加瀰散登記處理前後穫得ADC值、eADC值差異無明顯統計學意義（P＝0．2039，P＝0．0754），FA值差異有統計學意義（P＝0．0114），施加瀰散登記後可視纖維束變長。結論瀰散登記處理可穫得較好質量的ADC圖、eADC圖、FA圖和纖維示蹤圖，併穫得更為可靠的 ADC值、eADC值和FA值。可見纖維束長度變長，在磁共振DTI中有較大應用價值。
목적：통과대비자공진미산장량성상（DTI）수거진행량충처리후획득적ADC치、eADC치、FA치화가시신경섬유장도，연구미산등기재자공진DTI중적응용개치。방법대20례진행자공진DTI자적자료진행회고성분석，분별응용원시수거직접처리획득ADC치、eADC치화FA치，시가미산등기처리후재진행ADC치、eADC치화FA치측량，동시대량충불동처리방식진행섬유시종성상，분별비교매례연구자적ADC치、eADC치화FA치재시가미산등기전후변화，동시비교재시가미산등기전후섬유시종도상상상동흥취구측량소득섬유속장도차이。결과건강대조조시가미산등기처리전후획득ADC치、eADC치차이무통계학의의（P＝0．6953，P＝0．6321），FA치차이유통계학의의（P＝0．0321）；연구조시가미산등기처리전후획득ADC치、eADC치차이무명현통계학의의（P＝0．2039，P＝0．0754），FA치차이유통계학의의（P＝0．0114），시가미산등기후가시섬유속변장。결론미산등기처리가획득교호질량적ADC도、eADC도、FA도화섬유시종도，병획득경위가고적 ADC치、eADC치화FA치。가견섬유속장도변장，재자공진DTI중유교대응용개치。
Objective To evaluate the value of diffusion registration in diffusion tensor imaging (DTI) through comparing the diffusion tensor data to conduct the two kinds of post-processing methods for obtaining the ADC ,eADC and FA values and the vis-ual neural fiber length .Methods 20 cases of DTI data were analyzed retrospectively .The original data were adopted to directly process for obtaining the ADC ,eADC and FA values respectively ,after exerting diffusion registration the ADC ,eADC and FA val-ues were measured again ,at the same time the two different processing modes were performed the fiber trace imaging ,.The changes of ADC ,eADC and FA values in each case were compared before and after exerting the diffusion registration ,and at the same time the differences of fiber length in the same interest area in the fiber trace image were compared before and after exerting the diffusion registration .Results The difference of the ADC and eADC values obtained before and after exerting the diffusion registration in the normal group showed no statistical significance (P=0 .695 3 ,P=0 .632 1) and the FA value difference between before and after ex-erting the diffusion registration had statistical significance (P=0 .032 1);the difference of the ADC and eADC values obtained be-fore and after exerting the diffusion registration in the clinical patients group had no statistical significance ( P= 0 .203 9 ,P=0 .075 4) ,the FA value difference had statistical significance (P=0 .011 4) ,the visual neural fiber length was elongated after exer-ting the diffusion registration .Conclusion The diffusion registration processing can obtain better quality of ADC ,eADC ,FA images and the fiber trace image ,more reliable ADC ,eADC and FA values ,the visual fiber length is elongated ,which has large application value in MR DTI .
