Article Figures & Data
Figures
- FIGURE 1.
PET reconstructions for different respiratory gates, showing a coronal slice through a lesion in liver of patient 1. (A) End-of-inspiration motion phase. (B) Intermediate phase. (C) End-of-expiration phase.
- FIGURE 2.
Comparison of uncorrected (A), MC1-min (B), and MC6-min (C) PET reconstructions for patient 1; showing coronal slice presented in Figure 1. The plots in D show line profiles through lesion for the 3 reconstructions methods: black = non–motion-corrected; red = MC1-min; blue = MC6-min.
- FIGURE 3.
Bar charts representing figures of merit for quantification of motion-compensation accuracy for MC1-min and MC6-min protocols with respect to non–motion-corrected PET images. (A) Differences in SUVmax. (B) Differences in SUVmean. (C) Differences in contrast. (D) Differences in SNR. (E) Differences in lesion volume (in cm3).
- FIGURE 4.
DCE-MR images of liver using moco_GRASP reconstruction (A–C), together with corresponding motion-corrected PET image (D), showing axial slice through lesion in liver of patient 1. (A) Non–contrast-enhanced phase. (B) Arterial dominant phase. (C) Portal venous phase. (D) Corresponding motion-corrected PET image.
Tables
- TABLE 1
MSE for Different Reduced Scan Times and for Different Reconstruction Methods, with Respect to Full 6-Minute Acquisition Using GRASP Reconstruction
Patient MC6-ifft MC1-ifft 1-min GRASP 1 219 2073 956 2 178 1413 463 3 184 1666 287 4 155 1162 218 5 221 1845 489 6 165 1940 938 7 205 1172 309 8 147 1210 256 9 179 1751 429 10 134 1202 293 11 222 1804 460 12 178 1399 483
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