Methods 300 healthy subjects, aged 20-89 years, including 145 males and 155 females were scanned at lumbar spines (L1-3) with multislice spiral CT(MSCT), and the BMDs were measured by quantitatiive CT(QCT).

• 方法 采用美国GE公司Lightspeed Ul-tra型多层螺旋CT(MSCT)机对扬州地区300名(男145例,女155例)20-89岁健康人群进行腰椎(L1-3)骨密度测量。