Accuracy of non-contrast MRI for the evaluation of appendicitis

To evaluate the sensitivity and specificity of MRI for the detection of acute appendicitis in patients less than or equal to 40 years old presenting to the emergency department (ED) with right lower quadrant pain (RLQP), primarily using only single shot partial Fourier spin echo-train T2 weighted images with and without fat-suppression, and without the use of either intravenous (IV) or oral contrast agents. We demonstrate that MRI is a highly accurate test for the evaluation of patients less than or equal to 40 yo with acute RLQP and a differential diagnosis of acute appendicitis utilizing a rapidly acquired imaging protocol that is relatively insensitive to breathing-related motion and performed without use of IV or oral contrast.

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