Quantitative assessment of ischemia/infarct (mean quantitative values)
| Observer 1 | Observer 2 | Observer 4 | Observer 5 | Observer 6 | |
|---|---|---|---|---|---|
| CBF (mL/100 g/min) | 13.38 | 14.55 | 25.96 | 20.87 | 18.85 |
| CBV (mL/100 g) | 1.40 | 1.44 | 1.90 | 1.78 | 1.59 |
| MTT (seconds) | 10.65 | 10.83 | 10.11 | 9.65 | 10.08 |
Note:—CBF indicates cerebral blood flow; CBV, cerebral blood volume; MTT, mean transit time. Observer 1, radiology resident physician; observer 2, neuroradiology attending physician; observer 4, neuroradiology fellow; observer 5, junior CT technologist; observer 6, senior CT technologist. Observer 3, the neurology attending physician did not participate in this section of the study.