Goldann, Constantin and Helm, Maximilian and Uller, Wibke and Fellner, Claudia and Hammer, Simone and Deistung, Andreas and Gussew, Alexander and Rosendahl, Jonas and Wildgruber, Moritz and Wohlgemuth, Walther A. and Brill, Richard (2020) MR imaging of venous malformations: sciatic nerve infiltration patterns and involved muscle groups. SCIENTIFIC REPORTS, 10 (1): 14618. ISSN 2045-2322,
Full text not available from this repository. (Request a copy)Abstract
The aim of this retrospective cross-sectional study was to provide an MRI-based examination framework of venous malformations (VMs) infiltrating the sciatic nerve and determine the frequency of nerve infiltration patterns and muscle involvement in correlation to the patients' quality of life. Pelvic and lower limb MR images of 378 patients with vascular malformations were examined retrospectively. Pain levels and restriction of motion were evaluated with a questionnaire. Cross-sectional areas of affected nerves were compared at standardized anatomical landmarks. Intraneural infiltration patterns and involvement of muscles surrounding the sciatic nerve were documented. Sciatic nerve infiltration occurred in 23/299 patients (7.7%) with VM. In all cases (23/23; 100%), gluteal or hamstring muscles surrounding the nerve were affected by the VM. Infiltrated nerves were enlarged and showed signal alterations (T2-hyperintensity) compared to the unaffected side. Enlarged nerve cross-sectional areas were associated with elevated pain levels. Three nerve infiltration patterns were observed: subepineurial (12/23; 52.2%), subparaneurial (6/23; 26.1%) and combined (5/23; 21.7%) infiltration. This study provides a clinically relevant assessment for sciatic nerve infiltration patterns and muscle involvement of VMs, while suggesting that VMs in gluteal and hamstring muscles require closer investigation of the sciatic nerve by the radiologist.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | VASCULAR MALFORMATIONS; CLASSIFICATION; NEUROGRAPHY; DIAGNOSIS; ANOMALIES; |
| Subjects: | 600 Technology > 610 Medical sciences Medicine |
| Divisions: | Medicine > Lehrstuhl für Röntgendiagnostik |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 15 Mar 2021 11:08 |
| Last Modified: | 15 Mar 2021 11:08 |
| URI: | https://pred.uni-regensburg.de/id/eprint/43855 |
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