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Updated: Sep 20, 2025

Cardiac Magnetic Resonance for the Evaluation of Suspected Cardiac Thrombus: Conventional and Emerging Techniques
Published on: June 11, 2019
Current Status of Contrast Computed Tomography Examination for Diagnosing Acute Pulmonary Thromboembolism
Keiichi Shida1, Syuuichirou Okumura2, Takashi Okikawa2
1Department of Radiological Technology, Faculty of Fukuoka Medical Technology, Teikyo University, Japan.
Abstract:
The purpose of this study was to identify instances of unnecessary contrast-enhanced computed tomography (CT) scans performed at the time of diagnosis in patients with pulmonary thromboembolism at the emergency department of Saiseikai Kumamoto Hospital in Kumamoto Prefecture, Japan, between April 1, 2015, and March 31, 2020. The decision criteria for unnecessary contrast-enhanced CT scans included a Wells score of low or moderate risk, a D-dimer level <1.0 μg/mL, and no shock symptoms, or a negative finding for pulmonary thromboembolism. Consequently, 27 patients were considered to have undergone unnecessary contrast-enhanced CT scans. This equated to approximately 15.6% of the study population.
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