el-Khoury G Y, Wira R L, Berbaum K S, Pope T L, Monu J U
Department of Radiology, University of Iowa College of Medicine, Iowa City.
Radiology. 1992 Sep;184(3):849-54. doi: 10.1148/radiology.184.3.1509078.
To identify magnetic resonance (MR) imaging characteristics of normal patellar tendons and those affected by tendinitis, the authors evaluated MR images obtained in 10 healthy volunteers, in 50 patients who underwent MR imaging for evaluation of knee structures other than the patellar tendon, in 11 patients with patellar tendinitis, and in two athletes with patellar tendon injuries. Normal tendons had uniformly low signal intensity on T1-, T2-, and proton-density-weighted images and displayed distinct margins, and the anteroposterior (AP) diameter slightly increased proximally to distally. It was concluded that the AP diameter of a normal tendon, in its proximal portion, should not exceed 7 mm. In patellar tendinitis, the tendon showed increased signal intensity on T1-, T2-, and proton-density-weighted images and increased AP diameter proximally. The margins of affected tendons were indistinct, especially posterior to the thickened segment. In all groups studied, women had thicker proximal tendons than did men.
为了确定正常髌腱以及受肌腱炎影响的髌腱的磁共振（MR）成像特征，作者评估了10名健康志愿者、50名因评估除髌腱外的膝关节结构而接受MR成像的患者、11名髌腱炎患者以及两名髌腱损伤运动员的MR图像。正常肌腱在T1加权、T2加权和质子密度加权图像上信号强度均较低，边缘清晰，前后径从近端到远端略有增加。得出的结论是，正常肌腱近端的前后径不应超过7毫米。在髌腱炎中，肌腱在T1加权、T2加权和质子密度加权图像上信号强度增加，近端前后径增大。受影响肌腱的边缘不清晰，尤其是在增厚节段的后方。在所有研究组中，女性近端肌腱比男性更厚。
