Summary of the 10 relevant CTP research studies and their statistical resultsa
| Authors | Patients | CTP Scans | Arterial Segments/ROIs | Sensitivity | Specificity | PPV | NPV | Accuracy |
|---|---|---|---|---|---|---|---|---|
| Binaghi et al18 2007b,c | 23 | 23 | NA | 20, 90 | 100, 100 | 100, 100 | 27.3, 75 | 92.3 |
| Harrigan et al27 2005 | 10 | 17 | NA | NA | NA | NA | NA | NA |
| Kanazawa el al32 2007 | 19 | 26 | 156 | NA | NA | NA | NA | NA |
| Moftakhar et al28 2006c | 14 | 23 | NA | NA | NA | NA | NA | NA |
| Nabavi et al8 2001 | 15 | 59 | 944 ROIs | NA | NA | NA | NA | NA |
| Pham et al29 2006 | 10 | 36 | NA | NA | NA | NA | NA | NA |
| Sviri et al30 2006 | 46 | 63 | NA | 64.5 | 86 | 72.5 | 80.5 | NA |
| Sviri et al31 2006 | 35 | 35 | 420 ROIs | NA | NA | NA | NA | NA |
| Wintermark et al33 2008 | 33 | 40 | 200 | 92 | 86 | 79 | 95 | NA |
| Wintermark et al25 2006c | 27 | 35 | 630 | 95.1 | 90.7 | 71.3 | 98.7 | 91.6 |
a Several studies analyzed the CTP data using arterial segmental anatomy, whereas other studies used ROIs.
b Values given for mild-moderate and severe vasospasm groups, respectively.
c The study was included in the statistical calculations of the meta-analysis.