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The uptake of Tc-99m-diphosphonate was studied topographically and quantitatively on 258 diseased hips. For many diseased hips, bone scintigraphy provides items of information that complement the clinical, radiological, and biological data, with which it should always be compared. The localization, extent, and intensity of the uptake differ greatly(More)
We present topographic and quantitative studies of 99m Tc-diphosphonate bone scans from 46 patients and 25 control subjects in which we found transient osteoporosis of the hip (TOH) (12 cases--2 bilateral), early aseptic osteonecrosis of the femoral head (19 cases--2 bilateral), early coxitis (11 cases), and stress fracture of the femoral neck (4 cases).(More)
Morphological and quantitative studies of the uptake of diphosphonates labelled with technetium 99m were done on 179 pathological hips : 106 aseptic osteonecroses of the femoral head, including 20 at an early stage, 11 algodystrophias (transitory osteoporoses of the hip), 20 coxarthrosis, 16 cases of Paget's disease, 12 isolated malignant lesions of the(More)
Bone uptake of 99 m Tc diphosphonate may allow early diagnosis of renal osteodystrophy. Our study deals with 53 patients treated by repeated hemodialysis and reveals scanning abnormalities in 75% of them. Bone scanning provides information which are not visualized radiologically, especially scattered or located pulmonary calcifications (15% in our series).(More)
The scintigraphic appearances of all localized, evolutive bone lesions, whatever their nature, is usually a "hot spot", that is a zone of hyperfixation of the radioactive material. False negatively scintigraphs are, however, noted: the scintigraphic image appears normal, without a zone of hyperfixation, although radiographs of the skeleton are pathological.(More)