Low-keV virtual monoenergetic images with rapid kilovoltage-switching DECT for differentiating complicated from uncomplicated appendicitis in adults.

ABSTRACT:

Objectives

Low-keV virtual monoenergetic images on dual-energy CT (DECT) enhance iodine attenuation in inflamed appendiceal walls, but the role in differentiating complicated from uncomplicated appendicitis remains unclear. This is particularly relevant given the shift toward nonoperative management of uncomplicated appendicitis.

Methods

Consecutive adult patients with pathologically confirmed acute appendicitis who underwent preoperative rapid-kVP-switching DECT and appendectomy within 24 h were retrospectively included. Two radiologists reviewed DECT images, including a finding of appendiceal wall enhancement defects, using three series: 50-keV monoenergetic, 120-kVp-equivalent, and combined series, with discrepancies resolved by a third radiologist. Diagnostic performance

SUBMITTER: Wongsaengchan D 

PROVIDER: S-EPMC12929296 | biostudies-literature | 2026 Feb

REPOSITORIES: biostudies-literature