Cotten A, Jacobson J, Brossmann J, Pedowitz R, Haghighi P, Trudell D, Resnick D
Department of Radiology, Veterans Administration Center, San Diego, CA 92161, USA.
Radiology. 1997 Sep;204(3):806-12. doi: 10.1148/radiology.204.3.9280264.
To determine the best plane and position of the elbow for optimal visualization of normal and abnormal collateral ligaments with conventional magnetic resonance (MR) imaging and MR arthrography, to determine the normal appearance of the collateral ligaments at MR arthrography and to assess use of MR arthrography in evaluation of collateral ligamentous lesions.
Nine cadaveric elbow specimens were imaged with and without intraarticular administration of gadolinium-containing solution in several planes that were identified as potentially useful in a pilot study in two specimens. MR imaging findings were compared with anatomic findings.
Normal and abnormal ligaments were best depicted in a 20 degrees posterior oblique coronal plane in relation to the humeral shaft with the elbows extended and a coronal plane aligned with the humeral shaft with the elbows slightly flexed (20 degrees-30 degrees of flexion). Gadolinium enhancement improved the delineation of normal and abnormal ligaments on T1-weighted images in each case.
The posterior oblique coronal plane with the elbows extended or the coronal plane aligned with the humeral shaft with the elbows slightly flexed allows accurate assessment of the collateral ligaments. Gadolinium-enhanced MR arthrography of the elbow seems to be a promising technique.
通过传统磁共振成像（MR）和MR关节造影确定肘部的最佳平面和位置，以实现正常和异常侧副韧带的最佳可视化，确定MR关节造影时侧副韧带的正常表现，并评估MR关节造影在侧副韧带损伤评估中的应用。
对9个尸体肘部标本进行成像，在两个标本的初步研究中确定了几个可能有用的平面，分别在关节内注射含钆溶液前后进行成像。将MR成像结果与解剖结果进行比较。
在肘部伸展时，相对于肱骨干呈20度后斜冠状面，以及肘部轻微屈曲（20度至30度屈曲）时与肱骨干对齐的冠状面，正常和异常韧带显示最佳。在每种情况下，钆增强均改善了T1加权图像上正常和异常韧带的清晰度。
肘部伸展时的后斜冠状面或肘部轻微屈曲时与肱骨干对齐的冠状面可准确评估侧副韧带。钆增强MR关节造影术似乎是一种很有前景的技术。
