Buckwalter K A, Pennes D R
Department of Radiology, University of Michigan, Ann Arbor.
Radiology. 1990 Apr;175(1):276-7. doi: 10.1148/radiology.175.1.2315495.
Optimal visualization of the anterior cruciate ligament with magnetic resonance imaging requires oblique sagittal imaging planes. Between 10 degrees and 20 degrees of external rotation of the knee is considered ideal. While the knee may normally assume this amount of obliquity in the relaxed position, the orientation of the imaging plane is not guaranteed. Many imagers can perform oblique sagittal imaging, but the operator must set the proper degree of obliquity for the examination. A simple template was devised to facilitate this process, resulting in more consistently oriented imaging planes. The template can be reproduced by photocopying the diagram provided onto a transparency.
利用磁共振成像对前交叉韧带进行最佳可视化需要斜矢状位成像平面。膝关节外旋10度至20度被认为是理想的。虽然膝关节在放松位置通常可呈现出这种倾斜度,但成像平面的方向并无保证。许多成像设备都能进行斜矢状位成像,但操作人员必须为检查设置合适的倾斜度。设计了一个简单的模板来简化这一过程,从而使成像平面的方向更加一致。通过将提供的图表复印到透明胶片上即可复制该模板。