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Ultra-high-resolution cCTA of an 82-year-old male patient on a clinical PCD-CT. Heart rate during data acquisition: 66 bpm. (a) Standard reference reconstruction (0.6 mm slice, Bv40, QIR4). (b) UHR reconstruction (0.2 mm slice, Bv56, QIR4). Note the improved visualization and larger perfused diameter (arrow) of the proximal LAD in the UHR image, which appears almost occluded in the standard reconstruction. cCTA, coronary CT angiography; PCD-CT, photon-counting detector CT.
