Sincavage 2019.

Patient Sampling	Type of study: retrospective
Patient characteristics and setting	Sample size: 112 Female: 60 Mean age: 12.4 years median Inclusion criteria: patients aged ≤ 18 years who received an indeterminate US for suspected appendicitis Exclusion criteria: unclear Setting: USA
Index tests	Index test: MRI
Target condition and reference standard(s)	Target condition: appendicitis Reference standard: unclear
Flow and timing	Type and length of follow‐up: follow‐up electronic records, unclear duration
Comparative
Notes	We identified this study by a search update during the editorial process of the review.

MRI: magnetic resonance imaging
US: ultrasound