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Postinjection Transmission Scanning in Myocardial ¹⁸F-FDG PET Studies Using Both Filtered Backprojection and Iterative Reconstruction

¹ Department of Cardiology, Institute for Cardiovascular Research-VU, VU University Medical Center, Amsterdam, The Netherlands
² PET Center, Institute for Cardiovascular Research-VU, VU University Medical Center, Amsterdam, The Netherlands

View larger version (34K): [in a new window]   FIGURE 1. Scatter plots of the correlation between FBP-Pre and FBP-Post (A), FBP-Pre and FBP-PostTIS (B), FBP-Pre and FBP-PostDP (C), and FBP-Pre and OSEM-Pre (D). R2 = 0.94, 0.94, 0.98, and 0.99, respectively. The solid line in the figures represents the line of unity.

View larger version (36K): [in a new window]   FIGURE 2. Mean ratio of 18F-FDG activity between corresponding segments from FBP-Post (A), FBP-PostTIS (B), FBP-PostDP (C), and OSEM-Pre (D) and those of FBP-Pre.

View larger version (44K): [in a new window]   FIGURE 3. Limits of agreement for normalized segmental 18F-FDG uptake in FBP-Pre and FBP-Post (A), FBP-PostTIS (B), FBP-PostDP (C), and OSEM-Pre (D). Horizontal lines represent the mean difference and mean ± 2 SD. (A) Mean = -1%; 2 SD = 10%. (B) Mean = -1%; 2 SD = 11%. (C) Mean = 0%; 2 SD = 8%. (D) Mean = 1%; 2 SD = 4%.