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  • Title: [The optimization of chondromalacia patellae diagnosis by NMR tomography. The use of an apparatus for cartilage compression].
    Author: König H, Dinkelaker F, Wolf KJ.
    Journal: Rofo; 1991 Aug; 155(2):142-8. PubMed ID: 1878541.
    Abstract:
    The aim of this study was to improve the MRI diagnosis of CMP, with special reference to the early stages and accurate staging. For this purpose, the retropatellar cartilage was examined by MRI while compression was carried out, using 21 patients and five normal controls. The compression was applied by means of a specially constructed device. Changes in cartilage thickness and signal intensity were evaluated quantitatively during FLASH and FISP sequences. In all patients the results of arthroscopies were available and in 12 patients, cartilage biopsies had been obtained. CMP stage I could be distinguished from normal cartilage by reduction in cartilage thickness and signal increase from the oedematous cartilage during compression. In CMP stages II/III, abnormal protein deposition of collagen type I could be demonstrated by its compressibility. In stages III and IV, the method does not add any significant additional information.
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