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Reliability of echocardiographic assessment of left ventricular structure and function

The PRESERVE study

Vittorio Palmieri, MD^a, Björn Dahlöf, MD, PhD^*, Vincent DeQuattro, MD, FACC, Norman Sharpe, MD, FACC, Jonathan N. Bella, MD^a, Giovanni de Simone, MD, FACC^a, Mary Paranicas, BA^a, Dawn Fishman, BA^a and Richard B. Devereux, MD, FACC^a

^a Division of Cardiology, The New York Hospital–Weill Medical College of Cornell University, New York, New York, USA
^* University of Goteborg, Goteborg, Sweden
Los Angeles County/U.S.C. Medical Center, The White Memorial Medical Center, Los Angeles, California, USA
Department of Medicine, Auckland Hospital, Auckland, New Zealand

View larger version (19K): [in a new window]   Figure 1 Relation between screening values of LV mass (horizontal axis) and LV mass measured at subsequent baseline echocardiogram (vertical axis).

View larger version (21K): [in a new window]   Figure 2 Bland-Altman plot of interevaluation agreement of LV mass estimation. Between-study mean LV mass (horizontal axis) is plotted against between-study difference of LV mass in single patients (vertical axis).

View larger version (37K): [in a new window]   Figure 3 Mean values (vertical axis) of observed LV mass at screening (striped bars) and at baseline (filled bars) and of LV mass predicted by a formula to calculate regression to the mean (open bars) in hypertensive patients classified by quintiles of LV mass on screening echocardiogram (horizontal axis). *p < 0.05. **p < 0.001.