Article Figures & Data
Figures
- FIGURE 1.
Anthropomorphic chest oncology simulator with 9 internal spheric lesions. Lesion locations and size are shown at left. Phantom positioned supine in scanner is shown at right.
- FIGURE 2.
18F reference and 89Zr maximum-intensity-projection images. The 7-mm lesion was seen only on 710 thin-slice images (not shown). Circles show areas with focal 89Zr uptake not related to lesions.
- FIGURE 3.
Percentage reduction of SUVpeak between 20- and 10-mm lesions.
- FIGURE 4.
SUVpeak RC curves for 5 harmonized scanners.
Tables
Reconstruction parameters Scanner Algorithm Iterations Subsets Gaussian (mm) PSF DST OSEM 2 21 4 Not available 600 OSEM, 3D 3 16 7 SharpIR 690 OSEM 3 16 7 SharpIR 710 VPFX 2 24 7 SharpIR mCT True TOF 3 21 7 Not used PSF = point-spread function; OSEM = ordered-subset expectation maximization; 3D = 3-dimensional; SharpIR = point-spread function correction; VPFX = GE Healthcare standard reconstruction algorithm; TOF = time of flight.
Mediastinum Right lung Left lung Scanner Supraclavicular (10 mm) 10 mm 7 mm 15 mm Diaphragm (10 mm) 15 mm 10 mm 10 mm 20 mm DST Yes Yes No Yes Yes Yes Yes Yes Yes 600 Yes Yes No Yes No Yes Yes Yes Yes 690 Yes Yes No Yes Yes Yes Yes Yes Yes 710 Yes Yes Yes Yes Yes Yes Yes Yes Yes HR+ No No No Yes No No No No Yes Biograph 6 No No No Yes No Yes No No Yes mCT Yes Yes No Yes Yes Yes Yes Yes Yes
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