MR imaging evaluation of the normal appendix in children and adolescents

Radiology
Matteo BaldisserottoCarol Fernandes Jerzewski Sotero da Cunha

Abstract

To evaluate asymptomatic children and adolescents to determine the rate of detection of the normal appendix at unenhanced magnetic resonance (MR) imaging. This study was approved by the medical ethics committees of the authors' institutions, and informed consent was obtained from participants' parents or guardians. Forty asymptomatic volunteers underwent MR imaging to detect the appendix. Mean age (+/- standard deviation) for the 18 boys was 12.8 years +/- 2.4 (range, 9-17 years) and for the 22 girls was 12.7 years +/- 2.7 (range, 8-17 years). The MR imaging protocol consisted of axial T1-weighted fast spin-echo (SE), axial and coronal T2-weighted fast SE, and axial T2-weighted fat-saturated fast SE sequences. Two observers interpreted results independently, and kappa coefficients were calculated to evaluate agreement. The rate of detection was defined as the percentage of times that the appendix was visualized with at least one sequence. Body mass index was recorded for all participants. The normal appendix was detected by one observer in 19 cases (48%) and by the other in 20 cases (50%). The rate of appendix detection after observers reached a consensus was 48% (95% confidence interval: 32%, 64%). Interobserver agreement for ...Continue Reading

References

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Citations

Mar 22, 2012·Pediatric Radiology·Arzu KovanlikayaPaula W Brill
Jun 9, 2012·Pediatric Radiology·Michael M MooreDanielle K B Boal
Jan 21, 2014·Pediatric Radiology·Michael M MooreDanielle K B Boal
Sep 10, 2013·European Radiology·Marjolein M N LeeuwenburghUNKNOWN OPTIMAP study group
Feb 18, 2016·Pediatric Radiology·David W SwensonEdward Y Lee
Mar 30, 2010·European Journal of Radiology·Elizaveta ChabanovaHenrik S Thomsen
Jul 25, 2018·AJR. American Journal of Roentgenology·Dong Wook KimYoung Ah Cho
Aug 13, 2021·European Radiology·Eric L TungDavid W Swenson

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