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Abstract #3354

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

Ting Song1,2, Jeffrey a Stainsby3, Maureen N. Hood2,4, Vincent B. Ho2,4

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.