%A"Kawabata, Masayoshi" %D1987 %I; Tokushima Univ., Japan. School of Medicine %2 %J[] %K62 RADIOLOGY AND NUCLEAR MEDICINE, BRAIN, CAT SCANNING, AGE DEPENDENCE, ATROPHY, IMAGES, NERVOUS SYSTEM DISEASES, PATIENTS, SEX DEPENDENCE, BODY, CENTRAL NERVOUS SYSTEM, COMPUTERIZED TOMOGRAPHY, DIAGNOSTIC TECHNIQUES, DISEASES, NERVOUS SYSTEM, ORGANS, PATHOLOGICAL CHANGES, TOMOGRAPHY, 550602* - Medicine- External Radiation in Diagnostics- (1980-) %PMedium: X; Size: Pages: 156-164 %TStudy of brain atrophy using X-ray computed tomography. Measurement of CSF space-cranial cavity ratio (CCR) %XCerebrospinal fluid space-cranial cavity ratio (CCR) of 811 subjects with no brain damage were investigated using X-ray computed tomography. Brain volume of healthy adults aged 20 - 59 years was almost constant and decreased gradually after 60 years. CCR of men aged 20 - 49 years kept constant value and increased with aging after 50 years. CCR of women aged 20 - 59 years kept equal value and CCR increased with aging after 60 years. Brain atrophy with aging was investigated in this study also. In retrospective study, CCR of patients in any age diagnosed brain atrophy in daily CT reports were beyond the normal range of CCR of healthy subjects aged 20 - 49 years. In 48 patients with Parkinson's disease, almost of CCR of them were included within normal range of CCR in age-matched control. %0Journal Article %N;Journal ID: CODEN: SKIZA %1 %CJapan %Rhttps://doi.org/ Journal ID: CODEN: SKIZA JPN %GJapanese