Osteoporosis is usually diagnosed with a dual-energy X-ray absorptiometry or DEXA scan which tests for bone density.

骨质诊断一般利用双X收法（DEXA扫描）测量者骨密度来完成。

Diagnosis is done with a dual-energy X-ray absorptiometry or DEXA scan, where a T score equal to or less than -2.5 equals osteoporosis.

诊断是借助双X收法（DEXA扫描）完成，当检验结果中T分数小于等于-2.5时，可确诊为骨质。