[Study of a new axial projection of shoulder joint without abduction of upper extremity].

A study of a method of taking X-rays of the shoulder joint axis when the upper arm is fixed and cannot be rotated. When the shoulder joint has suffered damage, rotating the arm can be very painful, and obtaining accurate images of the axis is frequently difficult. For this reason, at this hospital, the Stockinette-Velpeau procedure is used on patients who cannot rotate their arms to have X-rays taken.

[Improvement of body diffusion image using addition technique].

It is difficult to obtain body diffusion weighted images (BDWI) using MRI that does not support parallel imaging and multi-NEX in clinical usage. Therefore, we evaluated whether a multiple image additions technique on the workstation could improve BDWI image quality and be good for clinical use by considering SNR and image distortion. We added 2 to 5 images on the same slice location with changing FOV, slice thickness, or reconstruction matrix in the phantom studies, and confirmed SNR improvement under all conditions.