This report presents the case of a 51-year-old woman with intermittent left knee pain, especially during full flexion of the knee, which had been ongoing for 1 year. Magnetic resonance imaging (MRI) showed mild effusion and round mass at the posterior compartment without synovial changes. Computerized tomography (CT) indicated mass had homogeneous low attenuation and density measurement of -99....

Background: Methods for segmentation, i.e., Full-segmentation (FS) and Segmentation-rotation (SR), are proposed maintaining Computed Tomography (CT) number linearity. However, their effectiveness has not yet been tested against noise.Objective: This study aimed to evaluate the influence of noise on accuracy CT linearity FS SR methods American College Radiology (ACR) computational phantoms.Mater...

Ferromanganese nodule nuclei are considered crucial to the formation and distribution of nodules. However, because it is difficult time-consuming study ferromanganese nuclei, few studies have been performed, despite large number samples. Here, we analyzed 934 nodules from abyssal seafloor around Minamitorishima Island (western North Pacific Ocean) using X-ray computed tomography (CT). Based on ...