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目的基于中国数字化人体(CVH)和MRI对照,观察肱二头肌长头腱(LBT)滑轮系统薄层断面解剖特点,为临床应用提供影像解剖学依据。方法 CVH肩关节解剖数据集5例斜冠状位、斜矢状位虚拟重建显示肱二头肌长头腱滑轮系统薄层断面解剖,并与20侧肩关节MRI平扫(T1WI),5侧肩关节MRI造影(MRA)对照,用Photoshop CS2软件观察LBT滑轮系统。结果LBT滑轮系统的主要结构喙肱韧带(CHL)、盂肱上韧带(SGHL)、肱二头肌长头腱(LBT)在MRI和CVH上显示清楚。CHL在T1WI斜矢状位显示最佳,SGHL在CVH横断面显示最佳,LBT在CVH上平行于LBT的斜冠状位显示最佳。LBT滑轮系统以斜矢状位CVH和MRA显示最佳,SGHL和CHL大致垂直,在LBT前方形成呈“T”分布的毗邻关系。结论 CVH和MRI显示LBT滑轮系统有很好互补性,以斜矢状位显示肱二头肌长头腱滑轮系统内部结构及毗邻关系为佳,为肩袖间隙疾病影像诊断提供了重要的识别标志。
Objective To observe the anatomical characteristics of thin section of the biceps longortail tendon (LBT) pulley system based on Chinese digitized human body (CVH) and MRI contrast and provide the basis of image anatomy for clinical application. Methods The anatomical data of the CVH shoulder were dissected in 5 cases with oblique coronal and sagittal virtual reconstruction to show the thin section anatomy of long biceps tendon pulsator system. The results were compared with T1WI, 5 sides shoulder Joint MR angiography (MRA) control, using the Photoshop CS2 software observation LBT pulley system. RESULTS The main structures of the LBT pulley system were the coracolavus ligamentum (CHL), the upper glenohumeral ligament (SGHL) and the long biceps tendon (LBT) of the biceps demonstrated clearly on MRI and CVH. CHL showed the best oblique T1WI sagittal, SGHL showed the best cross-sectional CVH, LBT in the CVH parallel to the oblique oblique coronal LBT showed the best. The LBT pulley system showed the best sagittal CVH and MRA. SGHL and CHL were approximately vertical, forming an adjacent relationship of “T ” distribution in front of the LBT. Conclusion CVH and MRI show that the LBT pulley system has good complementarity. The oblique sagittal position shows that the internal structure and adjacent relationship of the biceps tendon pulsator system is better, which provides an important identification mark for the imaging diagnosis of rotator cuff gap disease .