Table 4.
Summary of the studies identified in the systematic review that investigated topics other than the diagnostic accuracy of MRI
| Author | Year | Topic | Finding |
|---|---|---|---|
| W Bom50 | 2020 | The diagnostic accuracy of different imaging modalities for discriminating complicated from simple appendicitis a | The available evidence was not sufficient for conducting a meta-analysis |
| A Agathis51 | 2019 | The trend of MRI use according to the American College of Surgeons database | Of the 11,841 patients that received an appendicectomy in 2016, only 36 adult patients had received MRI |
| O Ozdemir52 | 2018 | The utility of MRI in follow-up assessment | MRI was useful in the follow-up assessment of simple appendicitis cases after initial medical management |
| N D'Souza5 | 2018 | Financial implications of imaging use for suspected appendicitis | The reduction in healthcare cost due to routine imaging was 68% less when using MRI instead of CT |
| V Tan53 | 2017 | The trends of MRI use at 16 Canadian centres | MRI was generally not used for assessing appendicitis in non-pregnant adults in Canada, even at centres having MRI available 24 hours a day |
| M Agapova54 | 2017 | Imaging preferences of U.S. physicians | Radiologists generally preferred contrast-enhanced CT over MRI to assess suspected appendicitis, whilst ED physicians had minimal preference in choosing between contrast-enhanced CT and MRI |
| M Repplinger55 | 2016 | The trend of MRI use at one U.S. academic centre | MRI was never used for evaluating adults suspected of appendicitis between 1992 and 2014 |
| S Kiatpongsan56 | 2014 | Decision analysis on the benefits of MRI use | The advantage of MRI in minimising radiation exposure is substantial only if MRI demonstrates a minimum sensitivity of 91% when specificity is 100%, or minimum specificity of 62% when sensitivity is 100% |
| M Leeuwenburgh57 | 2012 | Training of radiologists for interpreting MRI | Training of radiologists can improve the diagnostic accuracy of MRI for appendicitis |
| J Horowitz58 | 2011 | Visualising normal appendixes | T2-weighted MRI could visualise 80% of normal appendixes |
| P Nikolaidis59 | 2006 | Visualising normal appendixes | The reliability of MRI in visualising normal appendixes was variable |
| M Beinfield60 | 2005 | Costs of MRI use | The costs of MRI varied significantly between 1996 and 2002 |
aThis was a secondary study that investigated MRI, CT, and ultrasound. However, due to the insufficient evidence regarding MRI and ultrasound, meta-analysis was conducted only for CT