Tzu-Ching Shih1,2, Jeon-Hor Chen2,3,
D Chang3, K Nie3, M Lin3, O Nalcioglu3,
Min-Ying Lydia Su3
1Department of Biomedical Imaging and Radiological
Science, China Medical University, Taichung, Taiwan; 2Department
of Radiology, China Medical University Hospital, Taichung, Taiwan; 3Tu
& Yuen Center for Functional Onco-Imaging, University of California,
Irvine, CA, United States
This
study aims to demonstrate the effect of compression angle on the projection
breast density at different compression ratios based on the patient-specific
three-dimensional MR images. The fibroglandular tissue and tatty tissue were
described by 3,488 and 11,803 tetrahedral elements. Within 50% to 70%
compression ratio, the variation of the measured projection breast density
was approximately 7%. In contrast, the variation of the projection breast
density was nearly 11% for MOL view compression. This study provides a novel
computer simulation approach to simulate the large deformation of breast
compression. Compression angle of deviation may affect the measured
projection breast density.