학술논문
Does body surface potential mapping (bspm) predict functional recovery in chronic ischemic myocardium after revascularization?
Document Type
Conference
Author
Source
Computers in Cardiology, 2005. :207-210 2005
Subject
Language
ISSN
0276-6574
2325-8853
2325-8853
Abstract
Irreversibly dysfunctional myocardium is electrically characterized by decreased amplitudes and prolonged duration of local electrograms. We investigated whether ECGs from body surface correlate with epicardial electrograms. A 120-channel body surface potential mapping (BSPM) was performed in 24 patients before CABG. During CABG epicardial mapping was performed. For all BSPM leads the Q-amplitude and QR-duration were measured and correlated to epicardial electrogram characteristics. Q-wave-amplitude neighboring the area over the left scapula correlated well with epicardial amplitudes in scarred LAD. QR-duration caudal to V5,V6 correlated well with epicardial signal duration in scarred CxA, Q-amplitude in paramedian epigastric region correlated with epicardial amplitudes in scarred RCA. Epicardial electrogram characteristics can be estimated from body surface in patients with chronic ischemia