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Prone Versus Supine Patient Positioning During Gated ^99mTc-Sestamibi SPECT: Effect on Left Ventricular Volumes, Ejection Fraction, and Heart Rate

¹ Department of Nuclear Medicine, University Hospital Aachen, Aachen, Germany
² Medical Clinic I (Cardiology), University Hospital Aachen, Aachen, Germany

View larger version (26K): [in a new window]   FIGURE 1. Mean and individual EDV (A), ESV (B), SV (C), LVEF (D), and heart rate (E) calculated from prone and supine acquisition of gated SPECT. P values from Wilcoxon signed rank tests are shown.

View larger version (18K): [in a new window]   FIGURE 2. Grouping by EDV and ESV values. Mean and individual EDV values are shown for the 40 patients with supine EDV 146 mL (A) and for the 17 patients with supine ESV 58 mL (B). The 2 groups lie within the same supine volume range, indicated by dashed lines, and some overlap of patients occurs between them. P values from Wilcoxon signed rank tests are shown.

View larger version (37K): [in a new window]   FIGURE 3. Grouping by ventricle size. Mean and individual EDV (A and B), ESV (C and D), and LVEF (E and F) are shown for the 25 patients with supine EDV 107 mL (A, C, and E) and for the 23 patients with supine EDV > 107 mL (B, D, and F). P values from Wilcoxon signed rank tests are shown.