Reiser M, Karpf P M, Bernett P
Eur J Radiol. 1982 Aug;2(3):181-6.
Using anatomical specimens for experimental investigations, the physical-technical prerequisites for proper demonstration of the femoro-patellar articulation were determined and the following results obtained: hyaline cartilage possesses an attenuation value of 25-35 HU; artificial lesions from 1 mm. deep and 2 mm. wide minimum can be visualized; the use of positive contrast medium is best suited for demonstration of chondral lesions. In clinical practice we found that the various stages of cartilaginous degeneration peculiar to chondromalacia (Fründ I to III) are clearly demonstrated by CT arthrography. In CT the predisposing changes in the morphology of the patella and the femoro-patellar articulation are more precisely defined than in conventional tangential roentgenograms. In 69 cases the CT arthrographic findings could be verified at operation. However, the extent and severity of the lesions was, at times, underestimated.
通过使用解剖标本进行实验研究，确定了正确显示髌股关节的物理技术前提条件，并获得了以下结果：透明软骨的衰减值为25 - 35 HU；最小深度为1 mm、宽度为2 mm的人工损伤可以被观察到；使用阳性造影剂最适合显示软骨损伤。在临床实践中，我们发现CT关节造影能够清晰地显示软骨软化（弗伦德I至III期）特有的软骨退变的各个阶段。在CT检查中，髌骨和髌股关节形态的易患性变化比传统切线位X线片更精确地界定。在69例病例中，CT关节造影的结果在手术中得到了证实。然而，病变的范围和严重程度有时被低估。
