Table 4:
Summary of the 10 relevant CTA research studies and their statistical results
| Authors | Patients | Segments | Sensitivity | Specificity | PPV | NPV | Accuracy |
|---|---|---|---|---|---|---|---|
| Anderson et al17 2000a,b | 17 | 172 | 57, 64, 100 | 93, 97, 100 | 54, 58, 100 | 93, 98, 100 | 88, 95, 100 |
| Binaghi et al18 2007b | 27 | 286 | 87.7 | 99.2 | 98.3 | 94.1 | 95.4 |
| Chaudhary et al19 2008b | 33 | 886 | 63 | 90 | 43 | 95 | 87 |
| Joo et al20 2006 | 8 | 24 | NA | NA | NA | NA | NA |
| Ko et al21 2003 | 6 | 30 | 60 | 100 | NA | 37 | NA |
| Ochi et al22 1997 | 2 | 10 | NA | NA | NA | NA | NA |
| Otawara et al23 2002b | 20 | 154 | NA | NA | NA | NA | NA |
| Takagi et al24 1998 | 13 | NA | NA | NA | NA | NA | NA |
| Wintermark et al25 2006b | 27 | 123 | 75.6 | 95.3 | 79.5 | 94.2 | 91.4 |
| Yoon et al26 2006b | 17 | 251 | 97.5 | 98.1 | 90.7 | 99.5 | 98 |
a
Values given for mild, moderate, and severe vasospasm groups, respectively.
b
The study was included in the statistical calculations of the meta-analysis.