A Manually Annotated, Open-Source Dataset for Coronary, Aortic, and Valvular Calcium Segmentation in Non-Gated Chest CT. - Keola Ching; Brady Carlson; Ernesto Robinson; Kevin Jiang; Kyra Rozanitis; Brian Desalme; Divya Beeram; John Ciubuc; Kal Clark (Int. J. Imaging Syst. Technol., 2026)