Fig. 1.

Fig. 2.

Fig. 3.

Ultrasound characteristics and confirmatory tests
| Author, year | Baseline test | Exam included | Waiting time | US device | Confirmation test |
|---|---|---|---|---|---|
| Herneth et al. 2001(11) | scaph views | CI, SPE | 72 hours | ATL, HDI 3000, 10–5 MHz | MRI |
| Hauger et al. 2002(12) | scaph views | CI, SPE | within 7 days | HDI 3000&5000, 12 MHz | XR, CT, MR, B-scan |
| Senall et al. 2003(13) | scaph views | CI, SPE | 4.7 days | ATL, HDI 3000, 10–5 MHz | XR |
| Fusetti et al. 2005(14) | scaph views | CI, RCE, STTE | not mentioned | ATL-Philips 5000, 7–15 MHz | CT |
| Platon et al. 2011(15) | scaph views | CI, RCE, STTE | 3 days | Prosound SSD-5000, 5–13 MHz | CT |
| Yıldırım et al. 2013(16) | Clinical exam | CI, RCE, STTE | 24 hours | DC3, Mindray, 5–13 MHz | MRI |
Description of included articles
| Author, year | RCT/CS | Number of patients | Mean age | Male/female | Minors |
|---|---|---|---|---|---|
| Herneth et al. 2001(11) | CS | 15 | 23.5 | 7/8 | 14 |
| Hauger et al. 2002(12) | CS | 54 | 26 | 35/19 | 10 |
| Senall et al. 2003(13) | CS | 18 | 35 | not available | 10 |
| Fusetti et al. 2005(14) | CS | 24 | 42 | 13/11 | 12 |
| Platon et al. 2011(15) | CS | 62 | 41,2 | 29/33 | 14 |
| Yildirim et al. 2013(16) | CS | 63 | > 18 | not available | 12 |
Sensitivity and specificity
| Author, year | US operator | Sensitivity | Specificity | Positive predictive value | Negative predictive value |
|---|---|---|---|---|---|
| Herneth 2001(11) | Rad | 78% | 100% | 100% | 75% |
| Hauger 2002(12) | MSK Rad | 100% | 98% | 83% | 100% |
| Senall i wsp. 2003(13) | MSK Rad | 78% | 89% | 88% | 80% |
| Fusetti 2005(14) | MSK Rad | 100% | 79% | 56% | 100% |
| Platon et al. 2011(15) | Rad | 92% | 71% | 46% | 97% |
| Yıldırım et al. 2013(16) | AE Doctor | 85,70% | 100% | 100% | 100% |
Descriptive statistics
| N | Minimum | Maximum | Mean | Std. deviation | |
|---|---|---|---|---|---|
| Sensitivity | 6 | 78.00% | 100.00% | 88.9500% | 10.03868% |
| Specificity | 6 | 71.00% | 100.00% | 89.5000% | 12.21065% |
| Positive predictive value | 6 | 46.00% | 100.00% | 78.8333% | 22.78962% |
| Negative predictive value | 6 | 75.00% | 100.00% | 92.0000% | 11.40175% |