Simulation study of x-ray induced acoustic computed tomography in assessment of osteoporosis with clinical linear array

X-ray induced Acoustic Computed Tomography (XACT) is a new imaging method based on thermoelastic effect, which has the advantages of low x-ray radiation dose and high resolution. In this paper, clinical linear array was used in XACT for osteoporosis assessment. In order to optimize the XACT process, clinical linear array with different elements were used in XACT simulation imaging to select the optimal element number for best image quality. Furthermore, XACT simulation image of osteoporosis was demonstrated compared with CT image, which demonstrate that this technique has future potential clinical applications for assessment in physiologic osteoporosis.