Article Figures & Data
Figures
- FIGURE 1.
Axial images of patient scanned on both scanners for approximately 30 min (LAFOV: Biograph Vision Quadra, SAFOV: Biograph Vision) on day 4 after injection of 37 MBq of 89Zr-trastuzumab, showing small metastasis in iliac bone (arrow). Images are shown for 2 reconstruction protocols and for reduced scan durations of 10, 5, and 3 min for LAFOV PET.
- FIGURE 2.
Relative differences between SAFOV and LAFOV lesion SUVmax and SUVpeak for CLIN- and EARL2-reconstructed images based on 5 patients with total of 10 lesions. Different marker (star) was used for 1 patient, because LAFOV scan duration was only 10 min instead of 30 min. CLIN SUVmax subplot has larger y-axis limits.
- FIGURE 3.
Relative differences between SUVmax (A), SUVpeak (B), and SUVmean (C) of healthy-tissue VOIs for SAFOV compared with LAFOV EARL2-reconstructed images. Different marker (star) was used for 1 patient, because scan duration was only 10 min instead of 30 min on LAFOV.
- FIGURE 4.
COV in spheric liver VOI (3-cm diameter) in EARL2-reconstructed images for 5 patients (visualized with different colors) scanned on both SAFOV and LAFOV PET systems for approximately 30 min. One patient was scanned for only 10 min on LAFOV system, resulting in 4 patients for LAFOV-30 and LAFOV-15.
- FIGURE 5.
(A and B) Tumor SUVmax (A) and SUVpeak (B) bias of lower scan durations compared with full scan duration of 30 min for EARL2 LAFOV PET, based on 25 lesions across 8 patients. (C) Healthy-tissue SUVmean bias, based on 8 patients each with 4 healthy tissue types. Solid line joins averages between scan durations.
- FIGURE 6.
Relative differences between SAFOV (∼30 min) and LAFOV-3 (3 min) SUVmax (A) and SUVpeak (B) of lesions for EARL2-reconstructed images, based on 5 patients with total of 10 lesions.
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