腕关节的高分辨率磁共振成像：正常解剖结构

High-resolution magnetic resonance imaging of the wrist: normal anatomy.

作者信息

Baker L L, Hajek P C, Björkengren A, Galbraith R, Sartoris D J, Gelberman R H, Resnick D

出版信息

Skeletal Radiol. 1987;16(2):128-32. doi: 10.1007/BF00367760.

Abstract

Magnetic resonance imaging (MRI) provided adequate depiction of carpal soft tissue structures in normal volunteers, as well as accurate anatomic correlation with cadaveric specimens. Using a high field strength system and surface coil techniques, the intricate anatomy of the wrist was best defined on long TR short TE images. However, from a practical view, T1 weighted images (TR 600 ms, TE 25 ms) were most useful because of short imaging times, satisfactory image quality, and the absence of motion artifacts. The coronal plane provided the clearest definition of important structures. Potential diagnostic limitations exist due to the inability of MRI to clearly delineate articular cartilage, joint capsules, and small interosseous ligaments. The presence of intra-articular fluid in both living subjects and cadaveric specimens, however, allowed for fine depiction of these structures on T2 weighted images.

摘要

磁共振成像（MRI）能够充分显示正常志愿者腕部的软组织结构，并且与尸体标本的解剖结构具有准确的相关性。使用高场强系统和表面线圈技术，在长TR短TE图像上能最好地显示腕部复杂的解剖结构。然而，从实际应用角度来看，T1加权像（TR 600 ms，TE 25 ms）最为有用，因为其成像时间短、图像质量令人满意且无运动伪影。冠状面能最清晰地显示重要结构。由于MRI无法清晰描绘关节软骨、关节囊和小的骨间韧带，所以存在潜在的诊断局限性。然而，活体受试者和尸体标本中关节内液体的存在，使得在T2加权像上能够精细地描绘这些结构。