Table 2.
DRLs and administered doses for adult brain perfusion SPECT with acetazolamide challenge according to imaging protocols in Korea
| Procedure name and protocol | No. of nuclear medicine facilities (%) | Protocol | Min | Percentile | Max | Mean | SD | DRLs | |||
|---|---|---|---|---|---|---|---|---|---|---|---|
| 25th | 50th | 75th | |||||||||
| Overall | 95 (100%) | Baseline | 259 | 555 | 740 | 740 | 1110 | 642.2 | 158.1 | 740 | |
| ACZ | 499 | 740 | 1110 | 1110 | 2035 | 1027.1 | 286.9 | 1110 | |||
| According to protocols | 1-day baseline-ACZ | 75 (79%) | Baseline | 259 | 555 | 555 | 740 | 1110 | 623.5 | 155.8 | |
| ACZ | 499 | 925 | 1110 | 1295 | 2035 | 1098.8 | 277.8 | ||||
| 2-day baseline and ACZ | 19 (20%) | Baseline | 370 | 740 | 740 | 740 | 925 | 730.3 | 130.4 | ||
| ACZ | 555 | 740 | 740 | 740 | 925 | 759.5 | 104.9 | ||||
| 1-day ACZ-baseline | 1 (1%) | ACZ 740, baseline 370 | |||||||||