Statistical image reconstruction for low-dose CT using nonlocal means-based regularization. Part II: An adaptive approach

The usage of X-ray computed tomography (CT) has increased dramatically since its introduction in the 1970s. It was estimated that 76 million CT scans were performed across the hospitals and clinics of the United States in 2013 [1]. The consequential radiation dose is significant and the potential radiation risks are receiving growing concerns [2]. Since the radiation risks typically decrease with the reduced radiation dose, many techniques and strategies have been proposed for dose reduction on the CT examinations [3–5].

Source: Computerized Medical Imaging and Graphics - March 6, 2015 Category: Radiology Authors: Hao Zhang, Jianhua Ma, Jing Wang, Yan Liu, Hao Han, Hongbing Lu, William Moore, Zhengrong Liang Source Type: research