Article Figures & Data
Figures
- FIGURE 1.
SiPM detector module and shielding box.
- FIGURE 2.
MRI-compatible SiPM PET scanner consisting of 12 detector modules.
- FIGURE 3.
SiPM PET insert placed outside and inside 3-T MRI scanner.
- FIGURE 4.
Flood maps of SiPM PET detector module acquired without (A) and with (B) application of radiofrequency pulse sequences, and profiles on them. Boxed regions are where profiles were estimated.
- FIGURE 5.
T2-weighted MRI scans of uniform cylindric phantom acquired without (A) SiPM PET insert and with (B) insert (power on). Circled regions are where signal-to-noise ratio, summarized in Table 4, was estimated.
- FIGURE 6.
Simultaneously acquired PET and MRI (T2-weighted turbo spin echo) scans of three 18F-filled capillary tubes inserted into cucumber.
- FIGURE 7.
In vivo PET/MRI (T2-weighted turbo spin echo) study in BALB/c mouse after injection of 18F-FDG.
Tables
Parameter Value No. of channels 16 (4 × 4) Effective area per channel (mm) 3 × 3 No. of pixels per channel 3,600 Pixel size (μm) 50 × 50 Fill factor (%) 61.5 Peak wavelength (nm) 440 Typical gain 7.5 × 105 Characteristic Value Crystal LGSO Size (mm3) 1.5 × 1.5 × 7.0 Pitch (mm) 1.62 No. per block 360 (20 × 18) SiPM MPPC S11064-050P No. of channels 16 (4 × 4) No. of channels per block 64 (8 × 8) PET scanner No. of blocks 12 Ring diameter (cm) 13.6 Axial FOV (cm) 3.2 - TABLE 3
Peak-to-Valley Ratio Along Profiles on Middle Rows in Flood Maps Shown in Figure 4
Parameter Without radiofrequency With radiofrequency Mean 3.50 3.49 SD 0.97 1.03 - TABLE 4
Summary of Average Signal Intensity and Signal-to-Noise Ratio of MRI Scans Shown in Figure 5
Parameter Without PET With PET Intensity 1,002 1,006 Signal-to-noise ratio 27.1 23.4
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