Software | RAPID* | ISP† | Syngo.via‡ | Syngo.via | Syngo.via |
Method | Method A | Method B | Method C | ||
Infarct core | rCBF <30% | MTT 145% and CBV <2.0 mL/100 mL | CBV <1.2 mL/100 mL | CBV <1.2 mL/100 mL | rCBF <30% |
Smoothing | Automatic | No | No | Yes | No§ |
*RAPID, iSchemaView, Menlo Park, California, USA.
†Royal Philips Healthcare, Best, The Netherlands.
‡Siemens Healthcare, Erlangen, Germany.
§Additional smoothing did not change the results.
CBF, cerebral blood flow; CBV, cerebral blood volume; ISP, IntelliSpace Portal CT Brain Perfusion; MTT, mean transit time.