Abstract
By modeling major degrading factors in SPECT imaging along with motion-compensated temporal denoising, 4D reconstruction is demonstrated to significantly improve the quality of reconstructed images in cardiac gated SPECT (GSPECT) at the standard dose level. The utility of 4D reconstruction for radiation dose reduction in GSPECT has not been studied despite increased concern in population based risk due to its ionizing radiation. In this work, we investigate the potential of 4D reconstruction on reducing the imaging dose using Monte Carlo simulation of GSPECT imaging of a realistic human phantom at different dose levels. We use a number of metrics to quantify the quality of reconstructed images. The results demonstrate that 4D reconstruction can achieve better or comparable reconstruction at half dose compared to conventional clinical reconstruction at standard dose.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
