2025年2月13日 · The most common bone mineral density test is a central dual energy x-ray absorptiometry (DXA or DEXA). DXA uses radiation to measure how much calcium and other minerals are in a specific area of your bone. Because the weak bones that tend to break most often are the hip and spine, DXA usually measures bone mineral density in these bones.

Dual-energy X-ray absorptiometry (DXA, or DEXA[1]) is a means of measuring bone mineral density (BMD) with spectral imaging. Two X-ray beams, with different energy levels, are aimed at the patient's bones. When soft tissue absorption is subtracted, the bone mineral density (BMD) can be determined from the absorption of each beam by bone.

2023年3月15日 · Z-score（Z-评分）用于比较患者与正常同龄人之间骨密度（BMD）的标准差，其计算公式为：（骨密度测定值－同种族同性别同龄人骨密度均值）/同种族同性别同龄人骨密度标准差。

2024年5月20日 · DEXA imaging is the best clinical tool for assessing BMD in the evaluation of osteoporosis, and its validity is evident, given its ubiquity among international guidelines. Evaluation of primary and secondary osteoporosis cannot be elucidated with DEXA imaging.

2020年12月11日 · Bone mineral density (BMD) measurement by dual-energy x-ray absorptiometry (DXA) is an internationally accepted standard-of-care screening tool used to assess fragility-fracture risk.

A DXA scan (bone density test) is a quick, painless way to check your bone health. It’s similar to a regular X-ray, but measures the strength and mineral content of your bones instead of just taking pictures of them.

2022年8月10日 · What is a bone density test? Who should have a DEXA bone density test? What happens during a DEXA scan? What do my DEXA scan results mean? Does arthritis show up on a bone density test? At what age should you stop getting tested?

2012年11月23日 · Dual-energy x-ray absorptiometry (DEXA) is the technique of choice in the assessment of bone mineral density (BMD) , the average concentration of mineral in a defined section of bone . DEXA is a quick method that is accurate (exact measurement of BMD), precise (reproducible), and flexible (different regions can be scanned) and is performed with ...

BMD（Bone Mineral Density，骨質密度）和DEXA（Dual-Energy X-ray Absorptiometry，雙能量X光吸收法）是兩種常見的骨質密度檢測技術，但它們之間存在一些差異。 首先，DEXA是一種特定的檢測技術，使用兩種不同能量的X光來測量骨骼的密度。

Bone densitometry, (also known as DEXA), is a special type of x-ray that measures bone mineral density (BMD). It gives doctors helpful information about bone strength or fragility, and the risk of fractures or broken bones.