Shinagawa T, Hiraiwa Y, Mizuno S, Kusunoki N, Nitta Y, Matsubara T, Iwainaka Y, Konishi H
Department of Internal Medicine, Toyama Red Cross Hospital.
Nihon Ronen Igakkai Zasshi. 1992 Apr;29(4):271-8. doi: 10.3143/geriatrics.29.271.
Quantitative analysis of abdominal aorta calcification by X-ray CT is a useful method for non-invasive diagnosis of atherosclerosis. We recently examined the relationship between the X-ray CT measurement of abdominal aorta calcification and the degree of obesity. For this purpose, the body mass index (BMI) and the subcutaneous fat thickness (determined by X-ray CT at the umbilical level) were analyzed in relation to the abdominal aorta calcification index (ACI) in 845 patients (453 males and 392 females aged 40-79 years). Patients with BMI under 20 were classified as "lean", those with BMI between 20-26 as "normal" and those with BMI over 26 as "obese". 1. Among males, the ACI was highest in lean individuals and lowest in obese individuals. The difference in ACI between lean and obese males was significant in the middle aged group (40-65 years). Among females, no relationship was observed between the degree of obesity and ACI. 2. Among males, ACI was higher in individuals with low subcutaneous fat thickness and lower in individuals with greater subcutaneous fat thickness. The difference was significant in the middle aged group. Among females, no relationship was observed between the two parameters. 3. When the visceral fat to subcutaneous fat ratio (V/S) in 85 males and females aged 60-69 years was analyzed in relation to ACI, ACI tended to decrease as the V/S increased, in both males and females. 4. Relationships between BMI and subcutaneous fat thickness, between BMI and lipids and between lipids and ACI were also analyzed.
通过X射线CT对腹主动脉钙化进行定量分析是一种用于动脉粥样硬化无创诊断的有用方法。我们最近研究了腹主动脉钙化的X射线CT测量值与肥胖程度之间的关系。为此，我们分析了845例患者（453例男性和392例女性，年龄在40 - 79岁之间）的体重指数（BMI）和皮下脂肪厚度（通过脐水平的X射线CT测定）与腹主动脉钙化指数（ACI）的关系。BMI低于20的患者被归类为“瘦”，BMI在20 - 26之间的患者为“正常”，BMI超过26的患者为“肥胖”。1. 在男性中，ACI在瘦个体中最高，在肥胖个体中最低。在中年组（40 - 65岁）中，瘦男性和肥胖男性之间的ACI差异显著。在女性中，未观察到肥胖程度与ACI之间的关系。2. 在男性中，皮下脂肪厚度低的个体的ACI较高，皮下脂肪厚度高的个体的ACI较低。在中年组中差异显著。在女性中，未观察到这两个参数之间的关系。3. 当分析85例年龄在60 - 69岁之间的男性和女性的内脏脂肪与皮下脂肪比率（V/S）与ACI的关系时，在男性和女性中，ACI都倾向于随着V/S的增加而降低。4. 还分析了BMI与皮下脂肪厚度之间、BMI与血脂之间以及血脂与ACI之间的关系。
