[Proton spin tomographic changes of the femoral shaft in patients with kidney transplantation].

In a prospective study 43 patients were reviewed 3 and 12 months after renal transplantation. The patients had MRI examinations and plain x-rays of the hips as well as punch biopsies of the iliac crest. In 9 patients diffuse, inhomogeneous bilateral changes of the MRI-signal patterns of the femoral diaphysis were seen. They were hypointense in the T1-weighted images and hyperintense in the STIR-images. All plain x-rays were inconspicuous. These changes of the femoral shaft were significantly more frequent in patients with renal osteodystrophy of the histological type Delling Ila. We conclude that these changes of MRI-signals patterns might be connected with an osteoidosis.