MR microscopy of articular cartilage at 1.5 T: orientation and site dependence of laminar structures.

Yoshioka, Hiroshi; Haishi, Tomoyuki; Uematsu, Takaaki; Matsuda, Yoshimasa; Anno, Izumi; Echigo, Junko; Lang, Philipp; Itai, Yuji et al. · Skeletal Radiol · 2002

basic_science · Level V

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Abstract

To evaluate MR microscopic images of normal-appearing porcine hyaline cartilage ( n=15) in vitro obtained with an MR microscope using an independent console system (MRMICS) at 1.5 T. The MRMICS is a portable imaging system consisting of a radiofrequency system, gradient power supplies and a personal computer. The images from the MRMICS showed a laminar structure of porcine cartilage similar to the structure demonstrated with other MR imaging techniques. The laminar structures of the articular cartilage, were, however heterogeneous in respect of signal intensity and thickness, which varied according to the site resected. The MR laminar appearance was most comparable to the staining with Masson's trichrome for collagen. MRMICS is a useful add-on system for obtaining microscopic MR images of articular cartilage in vitro.

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