Only Fair to Moderate Correlation of Contrast Enhancement of Breast CT, MRI

Background: Breast MRI with contrast enhancement has become increasingly used to detect breast abnormalities, including in patients with dense fibroglandular tissue. More recently, contrast-enhanced CT of the breasts has been introduced as an alternative method for breast evaluation. Objective: To compare the background parenchymal enhancement (BPE) on MRI to the BPE on contrast-enhanced mammography (CEM). Design: Retrospective, institutional review board–approved single-center study. Methods: Patients with both CEM images and contrast-enhanced MRIs, acquired between August 2018 and October 2022, were included. The CEM images were obtained using a dual-energy acquisition protocol during a single breast compression. CT images were acquired 90 to 120 seconds after non-ionic contrast administration. The CT protocol included craniocaudal and mediolateral oblique views of the affected and contralateral sides. Breast MRIs were obtained on 1.5-T or 3.0-T scanners with dedicated breast more...