Related Experiment Video
Updated: Jan 3, 2026
08:48
Neuronavigation-guided Repetitive Transcranial Magnetic Stimulation for Aphasia
Published on: May 6, 2016
12.7K
MR neurography in Parsonage-Turner syndrome.
Vaishali Upadhyaya1, Divya Narain Upadhyaya2, Richa Bansal3
1Department of Radiology, Vivekananda Polyclinic and Institute of Medical Sciences, Vivekanandapuri, Nirala Nagar, Uttar Pradesh, India.
The Indian Journal of Radiology & Imaging
|November 20, 2019
Summary
MR Neurography (MRN) directly visualizes brachial plexus abnormalities in Parsonage-Turner Syndrome (PTS). The study found that nerve roots are most frequently affected, followed by trunks, cords, and terminal branches, often unilaterally.
Area of Science:
- Neurology
- Radiology
- Medical Imaging
Background:
- Parsonage-Turner Syndrome (PTS) is a recognized neurological condition.
- Previous studies inferred neural involvement in PTS indirectly through muscle denervation patterns.
- Direct visualization of brachial plexus abnormalities in PTS using MR Neurography (MRN) has been limited.
Purpose of the Study:
- To directly visualize the distribution and extent of brachial plexus abnormalities in patients with Parsonage-Turner Syndrome (PTS).
- To assess the utility of MR Neurography (MRN) in evaluating the affected components of the brachial plexus in PTS.
Main Methods:
- MR Neurography (MRN) of the brachial plexus was performed on 15 patients diagnosed with PTS.
- A 1.5T MRI system was used with a combination of T1W, T2W fat-saturated, STIR, 3D STIR SPACE, and 3D T2W SPACE sequences.
- Findings were systematically recorded and analyzed.
Main Results:
- The study included patients aged 7-65 years, with most presenting unilateral symptoms and shoulder abduction weakness.
- MRN revealed involvement percentages: 53.3% for roots, 46.7% for trunks, 40% for cords, and 13.3% for terminal branches.
- Muscle denervation (edema, fatty infiltration, atrophy) was observed in 53.3% of patients.
Conclusions:
- MRN demonstrated that brachial plexus involvement in PTS is frequently unilateral.
- Nerve roots were the most commonly affected site, followed by trunks, cords, and terminal branches.
- The C5 root was identified as the most frequently involved root in this cohort.
