Table 1.
Characteristics of the included studies
| Study | Country/Year | Study design | Subjects/hips | Mean age | Sex (F:M) | MR type | Mean time MR to surgery | Reference standard | Reference test blinded design | Index test blinded design | MR reviewers | Radiologists reliability |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Freedman BA | USA/2006 | ① | 24/24 | 37.1 | 13:11 | MRA(1.5 T) | > 6 months | Arthroscopy | NA | Yes | 1 MSK Radiologist | k > 0.96a |
| Leunig M | Switzerland/1997 | ① | 23/23 | 40 | 14:9 | MRA(1.5 T) | 5 months | Arthroscopy | NA | NA | NA | NA |
| Toomayan GA | USA/2006 | ① | 48/51 | 35 | 27:21 | MRI(1.5 T) MRA(1.5 T) | NA | Arthroscopy | NA | Yes | 6 MSK radiologists | NA |
| Chan YS | China/2005 | ② | 30/17 | 41 | 13:17 | MRA(1.5 T) | NA | Arthroscopy | NA | Yes | 3 MSK Radiologists | NA |
| Byrd JW | USA/2004 | ① | 40/40 | NA | NA | MRI(1.5 T) MRA(1.5 T) | NA | Arthroscopy | NA | NA | 1 of 2 MSK Radiologists | NA |
| Mintz DN | USA/2005 | ① | 92/92 | 38.5 | 58:34 | MRI(1.5 T) | NA | Arthroscopy | NA | Yes | 2 MSK Radiologists | 92% agreement |
| Studler U | Switzerland/2008 | ① | 57/57 | 35 | 36:21 | MRI(1.5 T) MRA(1.5 T) | NA | Open surgery and arthroscopy | NA | Yes | 2 MSK Radiologists | k = 0.81b |
| Petersilge CA | USA/1996 | ① | 10/10 | 38.4 | 5:5 | MRA(1.5 T) | NA | Open surgery and arthroscopy | No | NA | 1 MSK Radiologist | NA |
| Keeney JA | USA/2004 | ① | 101/102 | 37.6 | 70:31 | MRA(1.5 T) | NA | arthroscopy | No | NA | subspecialty radiologists | NA |
| Aprato A | Italy/2013 | ③ | 41/41 | 24.0 | 17:24 | MRA(1.5 T,apply traction) | < 6 months | Open surgery and arthroscopy | NA | NA | Subspecialty MSK radiologists | NA |
| Banks DB | UK/2012 | ① | 66/69 | NA | NA | MRA(1.5 T) | < 12 weeks | Arthroscopy | No | Yes | MSK radiologist | NA |
| Magee T | USA/2015 | ① | 43/43 | 34 | 15:28 | MRI(3.0 T)MRA(3.0 T) | 18 days | Arthroscopy | No | Yes | 2 MSK radiologists |
MRI:k = 0.88b MRA:k = 0.85b |
| Tian CY | China/2014 | ① | 90/90 | 35.1 | 46:44 | MRI(3.0 T)MRA(3.0 T) | 49.7 days | Arthroscopy | No | Yes | 2 radiologists |
MRI:k = 0.65b MRA:k = 0.81b |
| Reurink G | Netherlands/2012 | ① | 93/95 | 40.1 | 64:31 | MRA(1.5 T) | 153 day | Arthroscopy | NA | Yes | 2 MSK radiologists | k = 0.27b |
| Crespo-Rodríguez AM | Spain/2017 | ① | 50/50 | 42.5 | 20:30 | MRA(1.5 T,apply traction) MRI(3.0 T) | 8 months | Arthroscopy | No | Yes | NA | NA |
| Carulli C | Italy/2018 | ① | 24/29 | 38.3 | 6:18 | MRA(1.5 T) | NA | Arthroscopy | Yes | Yes | NA | NA |
| Annabell L | Australia/2018 | ① | 68/71 | NA | 30:41 | MRI(3.0 T) | < 6 months | arthroscopy | NA | Yes | 2 MSK radiologists | k = 0.501b |
| Saied AM | Belgium/2019 | ① | 482/490 | 39.5 | 262: 228 |
MRI(1.5 T) MRA(1.5 T) |
NA | Arthroscopy | No | NA | 1 MSK radiologist | NA |
| Linda DD | Canada/2017 | ① | 38/42 | 29 | 13:25 | MRI(3.0 T) | 154 days | Arthroscopy | No | Yes | 2 MSK radiologists | NA |
| Sutter R | Switzerland/2014 | ② | 28/28 | 31.8 | 10:18 |
MRI(1.5 T) MRA(1.5 T) |
4 months | Open surgery and arthroscopy | NA | Yes | 2 MSK radiologists | MRI:k = 0.63b MRA: k = 0.81b |
| Sahin M | Turkey/2014 | ① | 14/14 | 35 | 11:3 | MRA(1.5 T) | NA | Arthroscopy | NA | Yes | 2 MSK radiologists | NA |
| Schmaranzer F | Austria/2015 | ① | 73/75 | 34.5 | 28:45 | MRA(1.5 T)(apply traction) | NA | Arthroscopy | NA | Yes | 2 MSK radiologists | k = 0.58b |
MR, magnetic resonance; MRA, magnetic resonance arthrogram; MRI, magnetic resonance imaging; MSK musculoskeletal; ① Retrospective study; ② Prospective study; ③ Unclear; a: intraobserver reliability; b: interobserver reliability; NA not available