|
KMID : 1103720200810010081
|
|
Journal of the Korean Society of Radiology
2020 Volume.81 No. 1 p.81 ~ p.100
|
|
|
MR Neurography: Current Several Issues for Novice Radiologists
|
|
Ha Dong-Ho
|
|
|
Abstract
|
|
|
|
Magnetic resonance neurography (MRN) has been increasingly used in recent years for the assessment of peripheral neuropathies. Fat suppression T2-weighted imaging (T2WI) and diffusion-weighted imaging (DWI) have typically been used to provide high contrast MRN. Isotropic 3-dimensional (3D) sequences with fast spin echo, post-processing imaging techniques, and fast imaging methods, among others, allow good visualization of peripheral nerves that have a small diameter, complex anatomy, and oblique course within a reasonable scan time. However, there are still several issues when performing high contrast and high resolution MRN including standard sequence; fat saturation techniques; balance between resolution, field of view, and slice thickness; post-processing techniques; 2D vs. 3D image acquisition; different T2 contrasts between proximal and distal nerves; high T2 signal intensity of adjacent veins or joint fluid; geometric distortion; and appropriate p-values on DWI. The proper understanding of these issues will help novice radiologists evaluate peripheral neuropathies using MRN.
|
|
|
KEYWORD
|
|
|
Peripheral Nervous System Diseases, Diagnostic Imaging, Magnetic Resonance Imaging
|
|
|
FullTexts / Linksout information
|
|
|
|
|
Listed journal information
|
|
  
|
|