scholarly journals Proximal Neuropathic Lesions in Distal Symmetric Diabetic Polyneuropathy: Findings of high-resolution magnetic resonance neurography

Diabetes Care ◽  
2011 ◽  
Vol 34 (3) ◽  
pp. 721-723 ◽  
Author(s):  
M. Pham ◽  
D. Oikonomou ◽  
P. Baumer ◽  
A. Bierhaus ◽  
S. Heiland ◽  
...  
Keyword(s):  
Magnetic Resonance ◽  
High Resolution ◽  
Diabetic Polyneuropathy ◽  
Magnetic Resonance Neurography

scholarly journals Performance Evaluation of High-Resolution Ultrasound versus Magnetic Resonance Imaging in Diagnosing Peripheral Nerve Pathologies

2021 ◽  
Vol 31 (01) ◽  
pp. 043-048
Author(s):  
Neha Nischal ◽  
Saurabh Gupta ◽  
Kanhaiya Lal ◽  
Jatinder Pal Singh
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
High Resolution ◽  
Peripheral Nerve ◽  
Confidence Level ◽  
Predictive Value ◽  
Imaging Modality ◽  
Image Interpretation ◽  
Resonance Imaging ◽  
Magnetic Resonance Neurography

Abstract Background High-resolution ultrasound (HRUS) and magnetic resonance neurography (MRN) are considered complementary to clinical and neurophysiological assessment for neuropathies. Aims The aim of our study was to compare the accuracy of HRUS and MRN for detecting various peripheral nerve pathologies, to choose the correct investigation to facilitate prompt patient management. Materials and Methods This prospective study was done using HRUS with 14 MHz linear-transducer and 3 or 1.5T MR in cases referred for the assessment of peripheral nerve pathologies. Image interpretation was done using a scoring system (score 0–3 confidence level) to assess for nerve continuity/discontinuity, increased nerve signal/edema, fascicular change, caliber change, and neuroma/mass lesion. We determined the accuracy, sensitivity, and specificity of these modalities compared with the diagnostic standard determined by surgical and/or histopathological, if not performed then clinical and/or electrodiagnostic evaluation. Results The overall accuracy of MRN was 89.3% (specificity: 66.6%, sensitivity: 92.6%, negative predictive value [NPV]: 57.1%, positive predictive value [PPV]: 95%) and that of HRUS was 82.9% (specificity: 100%, sensitivity: 80.4%, NPV: 42.8, PPV: 100). The confidence level for detecting nerve discontinuity and change in nerve caliber was found to be higher on ultrasonography than magnetic resonance imaging (MRI) (100 vs. 70% and 100 vs. 50%, respectively). Pathology of submillimeter caliber nerves was accurately detected by HRUS and these could not be well-visualized on MRI. Conclusion HRUS is a powerful tool that may be used as the first-line imaging modality for the evaluation of peripheral nerve pathologies, and a better means of evaluation of peripheral nerves with submillimeter caliber.

High-resolution 3-Tesla magnetic resonance neurography of musculocutaneous neuropathy

2012 ◽  
Vol 21 (2) ◽  
pp. e1-e6 ◽  
Author(s):  
Avneesh Chhabra ◽  
Pearlene P. Lee ◽  
Cary Bizzell ◽  
Neda Faridian-Aragh ◽  
Shar Hashemi ◽  
...  
Keyword(s):  
Magnetic Resonance ◽  
High Resolution ◽  
3 Tesla ◽  
Magnetic Resonance Neurography

High resolution (3T) magnetic resonance neurography of the sciatic nerve

2013 ◽  
Vol 55 (3) ◽  
pp. 195-202
Author(s):  
C. Cejas ◽  
M. Aguilar ◽  
L. Falcón ◽  
N. Caneo ◽  
M.C. Acuña
Keyword(s):  
Magnetic Resonance ◽  
High Resolution ◽  
Sciatic Nerve ◽  
Magnetic Resonance Neurography

Somatotopic Fascicular Lesions of the Brachial Plexus Demonstrated by High-Resolution Magnetic Resonance Neurography

2017 ◽  
Vol 52 (12) ◽  
pp. 741-746 ◽  
Author(s):  
Tim Hilgenfeld ◽  
Johann Jende ◽  
Daniel Schwarz ◽  
Philipp Bäumer ◽  
Jennifer Kollmer ◽  
...  
Keyword(s):  
Magnetic Resonance ◽  
High Resolution ◽  
Brachial Plexus ◽  
Magnetic Resonance Neurography
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