title: [Precision bone densitometry using films without screens (author's transl)].
abstract: The new method of indirect bone densitometry proposed evaluates a coefficient of reduction related to the minerals of bone tissue (M.C.R.) by measurement of the blackness of a film without creen exposed to a well-defined monochromatic ray. The M.C.R. is closely related (R=0.98) to the mineral content measured experimentally in bone fragments. It represents a precise evaluation of the "quality" of bone tissue. A.M.C.R. less than normal is seen in hyperosteoidosis syndromes or in the case of increased intraosseous resorption. This relatively simple and cheap method is particularly useful in the detection and observation of osteomalacia, and in bone disorders associated with haemodialysis and hyperparathyroidism.
mesh_terms: D015502:Absorptiometry, Photon / Q000379:methods; D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D001842:Bone and Bones / Q000033:anatomy & histology* / Q000000981:diagnostic imaging; D005069:Evaluation Studies as Topic; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D012737:Sex Factors
vernacular_title: Densitométrie osseuse de précision sur films sans écrans