LAUSR

In contrast‐enhanced digital mammography (CEDM) and contrast‐enhanced digital breast tomosynthesis (CEDBT), low‐energy (LE) and high‐energy (HE) images are acquired after injection of iodine contrast agent. Weighted subtraction is then applied to generate dual‐energy (DE) images, where normal breast tissues are suppressed, leaving iodinated objects enhanced. Currently, clinical systems employ a dual‐shot (DS) method, where LE and HE images are acquired with two separate exposures. However, patient motion between these exposures can cause residual breast tissue structure to appear in the recombined DE images, reducing the visibility of iodinated lesions. To address this issue, we propose a direct‐indirect dual‐layer flat‐panel detector (DI‐DLFPD), which eliminates patient motion artifact by acquiring LE and HE images simultaneously.