Table 3. Difference in volumes between the extended (210 s) and standard (48 s) acquisition time (extended-standard).
| Absolute median paired difference | Relative median paired difference | |||||
|---|---|---|---|---|---|---|
| ischemic core (IQR) [ml] | ischemic penumbra (IQR) [ml] | total perfusion abnormality (IQR) [ml] | ischemic core (IQR) [%] | ischemic penumbra (IQR) [%] | total perfusion abnormality (IQR) [%] | |
| All patients (n = 36) | -13.2 (-26.0 –-4.3) | 12.4 (4.1–25.7) | 0.24 (-1.6–2.7) | -84.3 (-136 –-31.8) | 32.8 (14.1–69.6) | -.7 (-4.0–4.0) |
| Patients without truncation (n = 5) | -2.0 (-5.6–0.7) | 3.6 (1.3–13.4) | -2.7 (-0.2–8.8) | -28.2 (-92.3–9.5) | 9.5 (2.3–39.1) | 3.7 (-52.0–21.3) |
| Patients with only tissue TAC truncation (n = 24) | -14.4 (-20.9 –-6.1) | 13.9 (6.0–19.7) | -0.5 (-1.6–1.8) | -84.3 (-139 –-43.1) | 28.4 (14.1–52.3) | -1.2 (-3.9–1.2) |
| Patients with VOF or VOF and AIF truncation (n = 7) | -30.9 (-41.5 –-12.0) | 28.8 (10.7–50.3) | 1.7 (-2.9–5.3) | -121 (-183 –-61.8) | 117 (65.1–122) | 2.5 (-53.0–8.8) |
| Hopsital A (28. mm coverage) (n = 28) | -11.9 (-22.6 –-3.6) | 12.4 (3.7–22.1) | 0.4 (-1.4–3.1) | -89.4 (-164 –-31.2) | 44.6 (16.9–72.6) | 1.0 (-15.0–4.2) |
| Hospital B (40 mm to 80 mm coverage (n = 8) | -16.1 (-47.9 –-6.0) | 13.7 (7.1–46.7) | -0.0 (-5.0–1.7) | -57.3 (-101 –-31.8) | 22.5 (6.5–37.5) | 0.2 (-3.9–1.2) |
* truncation as assessed on the 48 seconds image data.