Table 3 Spatial resolution (FWHM), image noise (CVBG), and lung count error (ΔNLung) determined using the NEMA image quality phantom filled with 99mTc and 166Ho at 8:1 contrast with different scan times
From: Gamma camera imaging characteristics of 166Ho and 99mTc used in Selective Internal Radiation Therapy
Phantom setup | scan time per projection | FWHM (mm) | CVBG (%) | ΔNLung (%) |
|---|---|---|---|---|
99mTc, 8:1 contrast | 5 s | 12.8 | 12.0 | 22.9 |
10 s | 12.5 | 8.9 | 22.5 | |
15 s | 12.3 | 7.8 | 22.5 | |
20 s | 12.3 | 7.7 | 22.3 | |
166Ho, 8:1 contrast | 10 s | 15.4 | 24.0 | 33.3 |
20 s | 15.1 | 18.9 | 31.9 | |
30 s | 15.2 | 15.2 | 29.6 |