Diagnostic Performance of Combined Cardiac MRI for Detection of Coronary Artery Disease

Cardiac MRI can assess the heart without radiation or contrast dye loads, and this study tested how well a combined MRI protocol detects significant coronary disease.

Against invasive coronary angiography as the reference, stress perfusion MRI alone achieved 83 percent diagnostic accuracy, and a combined protocol (adding other MRI sequences) reached 87 percent. The conclusion was that a multi-component cardiac MRI is a reasonably accurate, non-invasive way to identify meaningful coronary stenosis.

This is a small single-center diagnostic study. Its accuracy figures are encouraging but derived from few patients, and accuracy against angiography is a measure of agreement, not of whether using MRI improves patient outcomes.

We rate the evidence moderate-to-limited. The sample is small and the design modest; it supports cardiac MRI as a capable diagnostic option without providing the large, multicenter validation that would make its numbers definitive.