Starok M, Lenchik L, Trudell D, Resnick D
Department of Medical Imaging, Sunnybrook Health Science Center, Toronto, Ontario, Canada.
AJR Am J Roentgenol. 1997 Jun;168(6):1493-9. doi: 10.2214/ajr.168.6.9168713.
The purpose of our study was to define retinacular anatomy with MR imaging and sonography.
Five cadaveric knee specimens underwent sonography and MR imaging using the following sequences: T1-weighted axial, sagittal, coronal, and five oblique planes and axial three-dimensional gradient-echo imaging. Three knees were injected with gelatin gadolinium solution before imaging. All five specimens were sectioned. Correlation was made between findings derived from MR imaging, sonography, and cadaveric sections.
T1-weighted axial images without intraarticular gadolinium were most useful for revealing the superficial layer and deep ligaments of the retinacula; however, the oblique sagittal and oblique coronal planes showed the deep ligaments more clearly in their craniocaudal dimensions. Sonography revealed the retinacula as bilaminar structures with discrete superficial and deep layers but failed to distinguish the deep ligaments from one another.
Conventional T1-weighted axial MR images showed the various components of the retinacula including the medial patellofemoral ligament, which is an important stabilizing structure. Oblique imaging planes may be a helpful adjunct to axial imaging planes. Sonography can consistently identify the retinacula and may be useful in their assessment.
我们研究的目的是利用磁共振成像（MR）和超声来明确支持带的解剖结构。
对五具尸体膝关节标本进行超声和MR成像，采用以下序列：T1加权轴位、矢状位、冠状位及五个斜位平面成像以及轴位三维梯度回波成像。其中三个膝关节在成像前注射了明胶钆溶液。对所有五个标本进行切片。对MR成像、超声及尸体切片的结果进行相关性分析。
未注射关节内钆剂的T1加权轴位图像对于显示支持带的浅层和深层韧带最为有用；然而，斜矢状位和斜冠状位平面能更清晰地显示深层韧带的头尾径。超声显示支持带为具有离散浅层和深层的双层结构，但无法区分深层韧带。
传统的T1加权轴位MR图像可显示支持带的各个组成部分，包括内侧髌股韧带，它是一个重要的稳定结构。斜位成像平面可能是轴位成像平面的有益辅助。超声能够始终识别支持带，可能有助于对其进行评估。
