Sharper Image of Breast Cancer Cells and Stroma in Dense Breast Using Thinner Angular Filter under X-Ray Dark-Field Imaging

摘要

The visibility of breast cancer was studied by two types of Laue angular filter (LAF) under x-ray dark field imaging. One was designed so that a field size of 90 x 90 mm~2 was available by a 2.124-mm-thick LAF with a 35 keV x-ray energy. The second was a thin LAF of 125.6 μm thickness with a view field of 10 x 10 mm~2 using a 13.7 keV x-ray. The estimated spatial resolutions for the cases of the 2.124-mm-thick LAF and the 125.6-μm-thick LAF were 139 and 23 μm, respectively. This is in good agreement with our experiment.