CAJ | 학술논문

目的　探讨磁共振仿真内窥镜尿路成像方法和技术。方法　采用磁共振水成像（MRH）和/或磁共振静脉尿路造影（MR-IVU）作为影像源，应用导航软件对150例患者进行了磁共振仿真尿路镜观察，其中107例同时行了X线静脉尿路造影（X-IVU），33例行了输尿管镜或膀胱镜检查。结果　单层块单激发FSE序列除外，几种MRH和MR-IVU技术，均有效地采集了全尿路影像，并获得仿真内镜图像，无任何与检查相关的并发症。结论　磁共振仿真尿道镜的内腔和病变的内镜样显示，可由二维HT2-FSE或多薄层单激发FSE序列、和一次屏气下的二维或三维快速破坏梯度重聚（FSPGR）序列获取，是常规磁共振成像有效的补充方法。
목적　탐토자공진방진내규경뇨로성상방법화기술。 방법　채용자공진수성상（MRH）화/혹자공진정맥뇨로조영（MR-IVU）작위영상원，응용도항연건대150례환자진행료자공진방진뇨로경관찰，기중107례동시행료X선정맥뇨로조영（X-IVU），33례행료수뇨관경혹방광경검사。 결과　단층괴단격발FSE서렬제외，궤충MRH화MR-IVU기술，균유효지채집료전뇨로영상，병획득방진내경도상，무임하여검사상관적병발증。 결론　자공진방진뇨도경적내강화병변적내경양현시，가유이유HT2-FSE혹다박층단격발FSE서렬、화일차병기하적이유혹삼유쾌속파배제도중취（FSPGR）서렬획취，시상규자공진성상유효적보충방법。
Objective　To study the methods and techniques of MR virtual endoscopy of urinary tracts. Methods　MR virtual endoscopy of urinary tracts was performed in 150 cases, using navigator software based on the source imaging data of MR hydrography (MRH) and/or MR intravenous urography (MR-IVU). X-ray intravenous urography (X-IVU) was performed in first 107 cases and 33 cases were underwent simultaneously ureterorenoscopy and/or cystoscopy. Results　Urography was successfully obtained with various techniques of MRH and MR-IVU, and three-dimensional (3D) virtual endoluminal views in various way were successfully reformed with the source data of MR-IVU and MRH but thick single-shot fast spin-echo pulse sequence. There was no any complication after imaging examination. Conclusion　MR virtual endoscopy which provides endoscope-like display of urinary tracts and lesions, is obtained with 2D heavily T2-weighted or thin single-shot fast spin-echo sequences and single-breath-hold 2D/3D fast spoiled gradient-echo refocus (FSPGR) sequences, and it's a useful supplementary method to conventional MR imaging and other post-processing techniques.