In the article “Comparison of Simultaneous Dual-Isotope Multipinhole SPECT with Rotational SPECT in a Group of Patients with Coronary Artery Disease,” by Steele et al. (J Nucl Med. 2008;49:1080–1089), the vertical and horizontal resolutions of Figure 7 were unequal. The corrected figure appears below. We regret the error.