当前位置： SCI文献检索 > EUROPEAN JOURNAL OF RADIOLOGY期刊下所有文献 > The application of paramagnetic contrast-based T2 effect to 3D heavily T2W high-resolution MR imaging of the brachial plexus and its branches.

The application of paramagnetic contrast-based T2 effect to 3D heavily T2W high-resolution MR imaging of the brachial plexus and its branches.

Abstract：

OBJECTIVE:To introduce a new 3D magnetic resonance neurography (MRN) method involving a paramagnetic contrast-based T2 effect coupled with an advanced 3D heavily T2W SPACE-STIR high resolution imaging sequence that would enhance the contrast between nervous tissue and surrounding tissues. METHODS:Thirty subjects (average age, 39.6±17.0 years; 18 male and 12 female) were enrolled, including three patients with brachial plexopathy and 27 healthy volunteers. Subjective scores from two neuroradiologists, evaluating noncontrast MRN (cMRN) and 3D SPACE-STIR contrast enhanced MRN (ceMRN) 3D data using a 3-point scoring system, were compared using Wilcoxon signed-rank test. Contrast-to-noise ratios (CNRs), SNRs, and contrast ratios within the brachial plexus on cMRN vs. ceMRN MIP and source images were also compared using the paired t-test. RESULTS:The average score for cMRN (0.77±0.43) was significantly lower than ceMRN (1.73±0.45) (p<0.001). Lower nerve vs. vein CNRs were found on cMRN vs. ceMRN, respectively (p<0.001 for both source and MIP images). All nerve-to-surrounding tissue contrast ratios (i.e., fat, muscle, veins, and bone) were higher for ceMRN compared with cMRN for both source and MIP images (all p<0.05). CONCLUSION:The improved 3D visualization of the brachial plexus and its branches, using this new contrast-enhanced MRN method, can provide high resolution imaging which may be of significant value in the assessment of brachial plexopathy.

journal_name

Eur J Radiol

journal_title

European journal of radiology

authors

Wang L,Niu Y,Kong X,Yu Q,Kong X,Lv Y,Shi H,Li C,Wu W,Wang B,Liu D

doi

10.1016/j.ejrad.2015.12.001

subject

Has Abstract

pub_date

2016-03-01 00:00:00

pages

578-84

issue

3

eissn

0720-048X

issn

1872-7727

pii

S0720-048X(15)30185-6

journal_volume

85

pub_type

杂志文章

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