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Accuracy of Ventricular Volume and Ejection Fraction Measured by Gated Myocardial SPECT: Comparison of 4 Software Programs

Department of Nuclear Medicine, Kanazawa University Hospital, Kanazawa, Japan

View larger version (26K): [in a new window]   FIGURE 1. Correlation and regression lines between gated SPECT methods (QGS [], ECT [], 4D-MSPECT [], and pFAST []) and GBP study for calculating EF (A) and EDV (B).

View larger version (40K): [in a new window]   FIGURE 2. Comparison of gated SPECT methods and GBP study by Bland–Altman plot for calculating EF. Symbols denote patients without defects (•), with small defects (), with large defects (), and with small hearts (x). Panels A, B, C, and D compare QGS, ECT, 4D-MSPECT, and pFAST, respectively. Lines indicate mean and mean ± 2 SD.

View larger version (40K): [in a new window]   FIGURE 3. Comparison of gated SPECT methods and GBP study by Bland–Altman plot for calculating EDV. Symbols are same as in Figure 2. Panels A, B, C, and D compare QGS, ECT, 4D-MSPECT, and pFAST, respectively. Lines indicate mean and mean ± 2 SD.