Indian Journal of Radiology and Imaging Indian Journal of Radiology and Imaging

NEUROIMAGING
Year
: 2020  |  Volume : 30  |  Issue : 2  |  Page : 111--115

Accuracy of radiologists, nonradiologists, and laypeople for identifying children with cerebral cortical atrophy from “Mercator map” curved reconstructions of MRIs of the brain


Anith Chacko1, Schadie Vedajallam1, Savvas Andronikou2, Ewan Simpson3, Ngoc Jade Thai3 
1 CRICBristol, School of Clinical Sciences, University of Bristol, Bristol, United Kingdom
2 CRICBristol, School of Clinical Sciences, University of Bristol, Bristol, United Kingdom; Department of Radiology Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, United States of America
3 CRICBristol, School of Clinical Sciences; CRICBristol, University of Bristol, Bristol, United Kingdom

Correspondence Address:
Dr. Anith Chacko
CRICBristol, School of Clinical Sciences, University of Bristol, Bristol
United Kingdom

Background: Using text reports to communicate bilateral, symmetric, and zonal cortical brain atrophy in children with term hypoxic ischemic injury (HII) to parents and legal professionals contesting compensation rights can be difficult. Using standard cross-sectional images for explaining bilateral, regional brain imaging to laypeople is also challenging. A single flattened image of the brain surface, much like a map of the earth is derived from a globe, can be generated from curved reconstruction of magnetic resonance imaging (MRI) scans, i.e., a Mercator map. Laypeople's ability to identify abnormal “Mercator brain maps,” without prior training, requires evaluation before use in nonmedical settings. Aim: To determine the sensitivity and specificity of laypeople in detecting abnormal pediatric Mercator flat-earth maps of the brain, without prior training. Methods and Materials: 10 Mercator brain maps were provided to 111 participants individually. The maps comprised 5 HII, 1 cortical dysplasia, and 4 normal cases. Participants were required to identify the abnormal scans. Sensitivity and specificity overall and for participants' subgroups were calculated. Results: Overall sensitivity and specificity were 67% and 80%, respectively. General radiologists (n = 12) had sensitivity and specificity of 91.2% and 94.6%, respectively. Laypeople (n = 54) had a sensitivity of 67% and specificity of 80%. Conclusion: The high specificity and sensitivity of radiologists validated the technique for distinguishing abnormal scans, regarding cortical pathology. High specificity of laypeople for identifying abnormal brains using Mercator maps indicates that this is a viable communication tool for demonstrating cortical MRI abnormalities of HII in children to laypersons.


How to cite this article:
Chacko A, Vedajallam S, Andronikou S, Simpson E, Thai NJ. Accuracy of radiologists, nonradiologists, and laypeople for identifying children with cerebral cortical atrophy from “Mercator map” curved reconstructions of MRIs of the brain.Indian J Radiol Imaging 2020;30:111-115


How to cite this URL:
Chacko A, Vedajallam S, Andronikou S, Simpson E, Thai NJ. Accuracy of radiologists, nonradiologists, and laypeople for identifying children with cerebral cortical atrophy from “Mercator map” curved reconstructions of MRIs of the brain. Indian J Radiol Imaging [serial online] 2020 [cited 2020 Aug 9 ];30:111-115
Available from: http://www.ijri.org/article.asp?issn=0971-3026;year=2020;volume=30;issue=2;spage=111;epage=115;aulast=Chacko;type=0