Items tagged “mri artifacts”

7 results found
Case

Phase-encoded motion artifact

 Diagnosis certain
Dr Roberto Schubert
Published 25 May 2012
71% complete
MRI
Article

Black boundary artifact

Black boundary artifact, also known as India ink artifact or type 2 chemical shift artifact, is an artificially-created black line located at fat-water interfaces such as those between muscle and fat. This results in a sharp delineation of the muscle-fat boundary lending the image an appearance ...
Case

Magnetic susceptibility artifact

 Diagnosis certain
Dr Ayush Goel
Published 19 Apr 2013
73% complete
MRICT
Article

Zebra stripes

Zebra stripes/artifacts appear as alternating bright and dark bands in a MRI image. The term has been used to describe several different kind of artifacts causing some confusion. Artifacts that have been described as a zebra artifact include the following: Moire fringes 1,2 Zero-fill artifact...
Article

Dielectric effect artifact

Dielectric effect artifact is an MRI artifact encountered most often on body MRI with 3 T units. Artifact At 3 T, the radiofrequency (RF) wavelength measures 234 cm in air, and the speed and wavelength of the RF field is shortened to ~26 cm within the body as a result of dielectric effects. Ho...
Case

Dielectric effect artifact

Dielectric effect...
 Diagnosis not applicable
Dr Matt A. Morgan
Published 23 Dec 2014
53% complete
MRI
Article

Shading artifact

Shading artifact in MRI refers to loss of signal intensity in one part of the image, leading to dark shading in this portion of the image. Causes uneven excitation of nuclei within the field; due to RF pulses applied at flip angles other than 90 and 180 degrees abnormal loading of coil or cou...

Updating… Please wait.

 Unable to process the form. Check for errors and try again.

 Thank you for updating your details.