Practical applications in stress echocardiography
Risk stratification and prognosis in patientswith known or suspected ischemic heart disease
Siu-Sun Yao, MD, FACC*,
Ehtasham Qureshi, MD*,
Mark V. Sherrid, MD, FACC* and
Farooq A. Chaudhry, MD, FACC*,*
* Department of Medicine, Division of Cardiology, St. Luke's–Roosevelt Hospital Center, Columbia University College of Physicians and Surgeons, New York, New York, USA
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Figure 1 Cardiac event rate per year as a function of wall motion score index (WMSI). The number of patients within each WMSI category is shown below each column. Statistical significance increases as a function of the WMSI result.
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Figure 2 Cardiac event rate per year as a function of wall motion score index and ejection fraction (EF). The number of patients within each category is indicated below each column. Shaded columns = EF >45%; solid columns = EF  45%.
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Figure 3 Cumulative survival as a function of wall motion score index (WMSI) using cardiac events as an end point.
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Figure 4 Cumulative survival stratified into ejection fraction (EF) >45% and EF 45% using cardiac events as an end point.
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