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Quantitative assessment of electrocardiographic strain predicts increased left ventricular mass: the strong heart study

Peter M. Okin, MD, FACC^*,*, Richard B. Devereux, MD, FACC^*, Richard R. Fabsitz, MA, Elisa T. Lee, PhD, James M. Galloway, MD, FACC and Barbara V. Howard, PhD^||

^* Division of Cardiology, Department of Medicine, Cornell Medical Center, New York, New York, USA
National Heart, Lung, and Blood Institute, Bethesda, Maryland, USA
College of Public Health, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, USA
University of Arizona, Tucson, Arizona, USA
^|| MedStar Research Institute, Washington, DC, USA.

View larger version (12K): [in a new window]   Figure 1 Receiver operating characteristic (ROC) curve illustrating overall accuracy of the absolute magnitude of ST segment deviation in leads V5 and V6 for the identification of echocardiographic left ventricular hypertrophy. The area of 0.726 ± 0.25 under the ROC curve was highly significant for the detection of hypertrophy (p < 0.001). Representative partition values of ST deviation are illustrated alongside the ROC curve at the points corresponding to their sensitivity and specificity.