Xiuxiu Zhou, Hanxiao Zhang, Xiaoxing Jin, Xiaohui Zhang, Xiaomei Lu, Qun Han, Xiaoge Xiong, Tian Liu, Yan Feng, Wenting Tu, Taohu Zhou, Yanming Ge, Peng Dong, Shiyuan Liu, Li Fan
PURPOSE: To assess the quantification accuracy of pulmonary nodules using virtual monoenergetic images (VMIs) derived from spectral-detector computed tomography (CT) under an ultra-low-dose scan protocol. METHODS: A chest phantom consisting of 12 pulmonary nodules was scanned using spectral-detector CT at 100 kVp/10 mAs, 100 kVp/20 mAs, 120 kVp/10 mAs, and 120 kVp/30 mAs. Each scanning protocol was repeated three times. Each CT scan was reconstructed utilizing filtered back projection, hybrid iterative reconstruction, iterative model reconstruction (IMR), and VMIs of 40-100 keV...
September 5, 2023: Diagnostic and Interventional Radiology: Official Journal of the Turkish Society of Radiology