Abstract #3354

Quantification of Left Bundle Branch Block on Left Ventricular Regional Wall Motion using Six-Segment Center Point Trajectory Mapping

Ting Song^1,2, Jeffrey a Stainsby³, Maureen N. Hood^2,4, Vincent B. Ho^2,4

¹Global Applied Science Laboratory, GE Healthcare, Bethesda, MD, United States; ²Radiology, Uniformed Services University of the Health Sciences, Bethesda, MD, United States; ³Global Applied Science Laboratory, GE Healthcare, Toronto, ON, Canada; ⁴Radiology, National Naval Medical Center, Bethesda, MD, United States

Left Bundle Branch Block (or LBBB) is a common cardiac electrical conduction abnormality. It is important to quantify the degree of LBBB using cardiac MR. We propose a six-segment center point trajectory (CPT) approach for LBBB quantification. The proposed method was implemented on a total of nine healthy and LBBB subjects. A quantitative metric generated by CPT showed statistically significant distinction between normal and LBBB regions.