title: [Quantitative X-ray computed tomography].
abstract: Quantitative X-ray Computed Tomography (QCT) has an advantage to be able to determine three-dimensional bone density of lumbar vertebral body compared with dual energy X-ray absorptiometry (DXA) method. We introduced the high reproductable QCT method as a simplified manual operation avoiding simultaneous imaging of both patients and bone mass phantoms. The coefficient of variation of values measured by phantom study was 0.6% for 7 years in our hospital. In measuring of 144 healthy Japanese women, the bone mineral density of lumbar spine was most likely to be decreased linealy with age.
authors.affiliation: Department of Radiology, Doto Hospital.
authors.forename: H
authors.initials: H
authors.lastname: Wakamatsu
authors.forename: T
authors.initials: T
authors.lastname: Matsuyama
authors.forename: T
authors.initials: T
authors.lastname: Yabana
mesh_terms: D015502:Absorptiometry, Photon; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D015519:Bone Density; D005260:Female; D006801:Humans; D008875:Middle Aged; D014057:Tomography, X-Ray Computed / Q000379:methods*