Fig. 1
From: Cardiac CT blooming artifacts: clinical significance, root causes and potential solutions
In this example, the mid-left descending coronary artery lesion (yellow arrow) is calcified. Blooming artifact in the CT image results in overestimation of lumen stenosis in this area. Invasive coronary angiography (ICA) revealed a less severe stenosis than perceived on CT. Fractional fluid reserve for this lesion was 0.82. Image credit: Centro Cardiologico Monzino (used with permission)