Study of MRI Image Artifacts in Khartoum State hospitals

Abstract

The aim of this study was to evaluate the common Artifacts in MR images in Khartoum State hospitals and detecting their Causes in order to give a solution for each if possible. Using observation to calculate the data along 4 month on Alzytona specialist hospital and Alribat university hospital , Artifacts in magnetic resonance images, as in different Radiologic imaging Modalities are common and lead to misdiagnosis or at least decrease the Image quality. The causes are different and as a result there are many Types of Artifacts and The result showed that the most common Artifact is Motion record High percentage 48%, the second common Artifacts was Phase mismmaping 18%, then Truncation and magic angle 8% ,from coil( cross excitation) and breathing and chemical shift 6% Through my search for most common Artifacts in the magnetic resonance imaging hospitals in Khartoum state we found most common artifacts that is of patient movement (motion Artifacts) due to differentials reasons e.g.: unconscious patient ,lack cooperation .And Phase mismmaping Artifacts appear from involuntary motion e.g: Brain artifacts appear because of the phase missmapping artifacts and truncation . And also we found Artifacts in the Pelvic because of the following reasons Motion of the patient. It also the artifacts appears in the Cervical because motion . And knee because magic angle and chemical shift and motion. And lumber because chemical shift ,motion and truncation. Accorndingly most technologists used FSE Sequence to reducal shift and the Artifacts. All the Examination in department is done on Adults because of the lack of the Anesthetic for children.