International Journal of Health and Clinical Research

Yazarlar: Sumit Kumar Verma, Rachna Belapurkar

Konular:-

Anahtar Kelimeler:Peripheral nerve pathologies,MRI,HRUS

Özet: Background: Peripheral nerve pathologies are commonly encountered by surgeons. They depend primarily on the information gained by non-anatomical tests like clinical examination, neurophysiological assessment and on clinical history for the assessment and management of such patients. The present study was conducted to compare high-resolution ultrasound (HRUS) and magnetic resonance neurography (MRN) in peripheral nerve pathologies. Materials & Methods: 65 patients diagnosed with peripheral nerve pathologies of both genders underwent high-resolution ultrasound using HRUS imaging with 14 MHz linear transducer (Siemens S2000) and Siemens MAGNETOM 3 or 1.5T MR. 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. coil depending upon the size of the region scanned and various sequences. Results: Out of 65 patients, males were 40 and females were 25. The mean sensitivity of MRI was 94.2% and USG was 82.5%, specificity was 68.3% and 100%, PPV was 95.5% and 100% and NPV was 58.1% and 46.2% respectively. Out of 15 cases of nerve discontinuity, MRI assessed 10 and USG 15 accurately. Out of 12 cases of increased nerve signal, MRI detected all correct and USG detected 8 correct. Out of 17 fascicular change, MRI detected 13 and USG all 17 correct. 10 cases of caliber change, MRI detected 5 and USG 10 correctly and 8 cases of mass lesions, MRI detected 7 and USG 8 correctly. The difference was significant (P< 0.05). Conclusion: HRUS showed high accuracy and is a powerful tool that may be used as the first-line imaging modality for the evaluation of peripheral nerve pathologies.

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