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Table 1 Summary of included studies

From: Pregnancy and appendicitis: a systematic review and meta-analysis on the clinical use of MRI in diagnosis of appendicitis in pregnant women

Author

Year

Country/province

Sampling method

Study design

Study duration

Setting

Mode of data collection

Participants

Age mean ± SD or range

Study population

Image interpretation

Theileu [64]

2014

USA

Convenience

Retrospective

2007–2012

Hospital

Interview

171

–

Pregnant women with suspected appendicitis

Board-certified attending

Ramaling am [65]

2015

USA

Convenience

Retropprospective

2007–2012

Hospital

Interview

102

16–41

Pregnant patients with acute abdominal pain

Fellowship radiologist trained in body MRI

Bichard [66]

2005

USA

 

Prospective

2002–2004

Hospital

Interview

29

–

Pregnant patients with acute abdominal pain

Fellowship radiologist trained in body MRI

Fonseca [67]

2014

USA

Convenience

Retrospective

2000–2011

Hospital

Interview

31

–

Pregnant women suspected for appendicitis

Attending radiologist

Isra [68]

2008

USA

Convenience

Retroprospective

2004–2006

Hospital

Interview

33

18–36

Pregnant women suspected for appendicitis

Attending radiologist

Rap [69]

2013

USA

Convenience

Retroprospective

1996–2011

Hospital

Interview

212

–

Pregnant patients with acute abdominal pain

Trained abdominal radiologist

Jang [70]

2011

South Korea

Convenience

Retroprospesctive

2008–2010

Hospital

Interview

18

–

Pregnant patients with acute appendicitis

Experienced gastrointestinal radiologist

Masselli [71]

2011

Italy

purposive

prospective

2006-2010

Hospital

Interview

40

20-35

pregnant patients with acute Abdominal and pelvic pain

Experienced radiologist in body MRI

Vu [72]

2009

Canada

Purposive

Retroprospective

2004–2008

Hospital

Interview

19

22–39

Pregnant patients with acute abdominal pain

Radiologist reponsible for reviewing abdominal MRI

Pedrosu [73]

2009

USA

Purposive

Retropresctive

2002–2007

Hospital

Medical records

148

15–42

Pregnant patients with acute abdominal pain

Fellowship trained attending radiologist

Oto [74]

2009

USA

Purposive

Retropresctive

2001–2007

Hospital

Hospital

118

18–40

Pregnant patients with acute abdominal and pelvic pain

Radiologist with subspecialty in abdominal MRI

Cobben [75]

2004

The Netherlands

Purposive

Presctive

2000–2003

Hospital

Interview

12

18–34

Pregnant patients with acute abdominal pain

Radiologist experienced in abdominal MRI

Aguilera [76]

2016

USA

Purposive

Retropresctive

2000–2011

Hospital

Interview

52

–

Pregnant patients with acute abdominal pain

Attending radiologist

Konrad [77]

2015

USA

Convenience

Retrospective

2009–2011

Hospital

Interview

140

–

Pregnant patients with suspected acute appendicitis

Attending radiologist

Sungah [78]

2016

South Korea

Convenience

Retrospective

2014-2016

Hospital

Interview

125

–

Pregnant patients with acute abdominal pain

Experienced radiologist

Kereshi [79]

2017

USA

Convenience

Retrospective

2010–2015

Hospital

Interview

204

17–47

Pregnant women with suspected appendicitis

Radiology fellow or abdominal imaging attend

Lauren M [80]

2015

USA

Convenience

Retrospective

2009–2014

Hospital

Interview

709

16–46

Pregnant patients with acute abdominal pain

Board-certified fellowship-trained abdominal radiologist

Richard [81]

2017

USA

Convenience

Retrospective

2007–2012

Hospital

Interview

223

–

Pregnant patients with acute abdominal pain

MRI fellows on any given day

Darshan [82]

2017

Canada

Purposive

Retrospective

2008–2015

Hospital

Interview

42

17–39

Pregnant patients with acute abdominal pain

Fellowship trained in body MRI