Attached figure shows spine image of phantom from T5 to T2. A bone mineral density (BMD) test measures how much calcium and other types of minerals are in an area of your bone. This test helps your health care provider detect osteoporosis and predict your risk for bone fractures. Most convention BMD test use dual energy X-ray absorption (DEXA) method, that is, low and high energy X-ray to obtain the attenuation of bone and soft tissue. However, the use of low X-ray energy increase a patient dose. Also, it is expensive to generate dual X-ray in a single X-ray generator and step-like X-ray pulse. Our lab made a new photon counting detector with CdZnTe material which enables to record entire X-ray sprecturm. Figures are obtained with 100 kVp X-ray generator only and BMD values of 1.196 g/cm2 (actual phantom value is 1.12 g/cm2).
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