Table 1.
Details of the healthy controls recruited in each center and the SPECT system used for imaging
| Center | Men (n) | Women (n) | Age (years) | Combinations of SPECT scanner + Collimators | ||
|---|---|---|---|---|---|---|
| Mean ± SD | Range | Combination of first scan (no. of subjects) | Combination of second scan (no. of subjects) | |||
| Chiba | 9 | 21 | 64 ± 23 | 41–82 | GE Infinia + ELEGP (18) | GE Infinia + LEHR (18) |
| Toyoake | 14 | 22 | 70 ± 6 | 55–82 | Toshiba 9300R + fan-beam (36) | Siemens Symbia T6 or T16 + LMEGP (36) |
| Kobe | 25 | 3 | 38 ± 7 | 30–63 | GE Optima NM/CT 640 + ELEGP (19) | Toshiba ECAM + LMEGP (18) |
| Sapporo | 20 | 20 | 61 ± 12 | 38–83 | Toshiba 9300R + fan-beam (40) | Toshiba ECAM + LMEGP (40) |
| Tokyo (Kodaira) | 19 | 21 | 55 ± 27 | 30–81 | Siemens Symbia T6 + LMEGP (23) | GE Discovery NM/CT 670 pro+ ELEGP (23) |
| Tokyo (Shinagawa) | 10 | 16 | 52 ± 27 | 35–83 | Toshiba 9300R + fan-beam (26) | GE Discovery NM/CT 670 + LEHR (26) |
| Tokyo (Bunkyo) | 14 | 16 | 57 ± 14 | 31–79 | GE Infinia + LEHR (28) | Philips BrightView + Cardiac High Resolution (27) |
| Sendai | 5 | 21 | 58 ± 12 | 30–72 | Siemens Symbia + LMEGP (13) | GE Infinia + LEHR (13) |
| Total | 116 | 140 | 57 ± 15 | 30–83 | ||
LEHR low-energy high-resolution, LMEGP low- to medium-energy general-purpose, ELEGP extended low-energy general-purpose, SD standard deviation
The numbers refer to the subjects and scans included in the analysis of the SPECT data