Related Experiment Video
Updated: Jun 23, 2026

Signal Acquisition, Score Interpretation, and Economics of a Non-Invasive Point-of-Care Test for Coronary Artery Disease
Published on: August 9, 2024
Computed tomographic coronary angiography for diagnosing stable coronary artery disease: a cost-utility and
Shiori Amemiya1, Hidemasa Takao
1Department of Radiology, Graduate School of Medicine, University of Tokyo, Hongo, Bunkyo-ku, Tokyo, Japan. amemiya-tky@umin.ac.jp
Background:
To evaluate the lifetime potential benefits and cost-effectiveness of using 64 multidetector-row computed tomography coronary angiography (CTCA) as a noninvasive imaging modality for patients at risk for coronary artery disease (CAD).
Methods And Results:
A decision and cost-effective analysis using a Markov model was performed to compare 4 strategies: (1) no examination, (2) routine coronary angiography (CAG), (3) CTCA, or (4) medication without CAG or CTCA in persons at risk for stable CAD. Compared with the no examination and no treatment strategies, CTCA gained 0.551 quality-adjusted life-years (QALYs) with an incremental cost-effectiveness ratio (ICER) of US$15,581 (in 2007) per QALY. Routine CAG gained 0.012 QALYs compared with the CTCA strategy, with an ICER of US$445,276 per QALY.
Conclusions:
Using CTCA as the first-line examination for 60-year-old men at risk for stable CAD achieved gains of QALY comparable to that of routine CAG, but at a lower cost.
More Related Videos
Related Concept Videos
Imaging Studies for Cardiovascular System V: CT
Imaging Studies for Cardiovascular System VI: Calcium -Scoring CT
Acute Coronary Syndrome III: Diagnostic Studies
Computed Tomography
The technique was invented in the 1970s and is based on the principle that as X-rays pass through the body, they are absorbed or reflected at different levels. In the technique, a patient lies on a motorized platform while a computerized axial tomography (CAT) scanner rotates...
Imaging Studies III: Computed Tomography
Coronary Artery Disease V: Interprofessional Care

