Fig. 2
From: Cardiac-induced motion of the pancreas and its effect on image quality of ultrahigh-resolution CT
Sample CT images of a 3-cm diameter pulsating disk imaged at standard-resolution (a) and ultra-high-resolution (b), contaminated by pancreatic motion artifact. The diameter of the disk pulsated at the same rate and amplitude as the anterior–posterior displacement of the head of the pancreas measured by DENSE-MRI in subject #3. Cardiac-induced motion artifacts are more pronounced in the UHR image. The arrows, stars, and triangles mark some of the significant artifacts