Figure 3From: Accelerated free breathing ECG triggered contrast enhanced pulmonary vein magnetic resonance angiography using compressed sensingProtocol used for quantitative sharpness analysis. The PV sharpness was measured at multiple locations (white segments) and was averaged over all locations. The PV sharpness on a given segment was measured as 1/d where d represents the distance in millimeter required to transition from the 80% threshold (I min + (I max -I min ) × 0.8) to the 20% threshold (I min + (I max -I min ) × 0.2) of the intensity profile.Back to article page