Coronary CT angiography (CCTA) is an established diagnostic imaging modality for the assessment of patients with suspected coronary disease, where high resolution (sub-millimeter) imaging is required for the accurate detection and quantification of stenosis. To date, achieving such resolutions using coronary MRA (CMRA) has not been possible due to prohibitively long scan times. However, accelerated imaging using image-based navigators and non-rigid motion compensated patch-based undersampled reconstruction techniques have enabled sub-millimeter coronary MR imaging in acceptable acquisition times. In this feasibility study, we demonstrate that accelerated sub-millimeter CMRA holds promise for the detection and exclusion of significant coronary artery stenosis.
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