Agreement between handheld ultrasonography and computed tomography for abdominal aortic diameter measurement in unselected emergency department patients: a prospective feasibility study - Alihan Elveren; Ferhat Yildiz; Muhammed Fatih Cırıl; Mustafa Akarca; Ebru Ünal Akoğlu; Tuba Ci̇mi̇lli̇ Öztürk; Burcu Azapoğlu Kaymak (BMC Emergency Medicine, 2026)