A novel approach to scatter-free imaging for the improvement of breast cancer Detection

作者：Green F H^*; Veale M C; Wilson M D; Seller P; Scuffham J; Pani S

来源：Journal of Instrumentation, 2014, 9(12): C12013.

DOI：10.1088/1748-0221/9/12/C12013

• X-ray monochromators
• X-ray mammography and scinto- and MRI-mammography
• X-ray detectors
• Pixelated detectors and associated VLSI electronics

Compton scattering is one of the main causes of image degradation in X-ray imaging. This is particularly noticeable in mammography where details of interest feature low contrast in comparison to the surrounding tissue. This work shows the feasibility of obtaining scatter-free images by using a quasi-monochromatic X-ray beam and a pixellated spectroscopic detector. This work presents characterisation of the imaging system and quantitative imaging data of a low contrast test object. An improvement in contrast by 8% was observed compared to images obtained including scattered radiation. Comparison with a conventional setup showed an increase in the image quality factor when scatter has been removed.

• 出版日期2014-12