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Detection and quantitation of ischemic left ventricular dysfunction using a new video intensity technique for regional wall motion evaluation.

V Bhargava·K S Sunnerhagen·M Rashwan·R A Podolin·R Shabetai
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Abstract

Eighty patients with ischemic heart disease and 17 normal subjects were evaluated for left ventricular regional wall motion by means of a new method. The wall motion analysis is based on video intensity. This technique uses a temporally sliding analysis to evaluate the cardiac cycle in 100 msec intervals. Presence of coronary artery disease was defined as more than 50% measured diameter stenosis. Wall motion abnormalities in regions perfused by stenotic vessels were most common in early diastole (76%). Sensitivity of this method at rest in patients with coronary artery disease was 79.7% (p less than 0.0001) and overall accuracy was 84.2% (p less than 0.0001). Abnormalities in both systole and diastole were more common in regions perfused by severe lesions (greater than 75%) than in those perfused by moderately stenotic (less than 75%) vessels (p less than 0.05). A comparison of the new method with phase and amplitude analysis was performed in 15 patients and with two-frame analysis in 40 patients. This new method yielded a higher sensitivity than either of the other two methods.

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AdultAgedCoronary DiseaseFemaleHumansImage Processing, Computer-AssistedMaleMiddle AgedMyocardial ContractionSensitivity and SpecificityVentricular Function, LeftVideotape RecordingJournal ArticleResearch Support, U.S. Gov't, P.H.S.

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V Bhargava, K S Sunnerhagen, M Rashwan, R A Podolin, R Shabetai. 1990. Detection and quantitation of ischemic left ventricular dysfunction using a new video intensity technique for regional wall motion evaluation.. https://doi.org/10.1016/0002-8703(90)90117-g

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