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429 The Effect Of Quantum Iterative Reconstruction Levels On Coronary Calcium Scores Using Dual-source Photon-counting Detector Computed Tomography: In Vivo Experience

      Introduction: Coronary calcium score is a well-established risk factor of adverse cardiac events. Novel dual-source photon-counting detector CT (PCD-CT) technology has been introduced in clinical practice recently, however data are limited regarding the impact of quantum iterative reconstruction (QIR) algorithm on coronary calcium score (CACS). We therefore aimed to assess the difference in CACS using images without QIR and QIR levels of 1 to 4.
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