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Figure 7 SPECT Prediction of Response to Resynchronization

Summed rest score (SRS) on SPECT predicted echocardiographic response rate after cardiac resynchronization therapy. The hazard ratio for nonresponse with SRS 27 is 3.59 (95% confidence interval 1.63 to 7.91; p < 0.0001). SPECT = single-photon emission computed tomography. Figure used with permission from Adelstein and Saba (95).