Evaluation of osteoporosis in X-ray CT examination: a preliminary study for an automatic recognition algorithm for the central part of a vertebral body using abdominal X-ray CT images.
We have developed an algorithm that can distinguish the central part of the vertebral body from abdominal X-ray CT images to determine whether it is possible to aid a diagnosis of osteoporosis. We classified three measures for the principal component analysis and linear discriminant function. When we judged whether patients had osteoporosis or not, the ratio usable for diagnosing osteoporosis (sensitivity) was 1.00 (15/15), and for diagnosing as normal (specificity) was 0.64 (7/11). We believe that this algorithm can be used to aid in diagnosing osteoporosis, utilizing the measures obtained from the CT images.
Nishihara
Sadamitsu
S
Department of Radiological Sciences, Hiroshima Prefectural College of Health Sciences, 1-1 Gakuen-machi, Mihara-City, Hiroshima 723-0053, Japan. nishihara@hpc.ac.jp
Fujita
Hiroshi
H
Iida
Tadayuki
T
Takigawa
Atsushi
A
Hara
Takeshi
T
Zhou
Xiangrong
X
D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D000465:Algorithms; D005260:Female; D006801:Humans; D007091:Image Processing, Computer-Assisted; D007564:Japan; D008297:Male; D008875:Middle Aged; D010024:Osteoporosis / Q000000981:diagnostic imaging*; D011860:Radiography, Abdominal; D013131:Spine / Q000000981:diagnostic imaging*; D014057:Tomography, X-Ray Computed