Professor, Department of Radio-Diagnosis, NRI Medical College, Chinakakani, Guntur District, India

Professor, Department of Radio-Diagnosis, NRI Medical College, Chinakakani, Guntur District, India.

Postgraduate student, Department of Radio-Diagnosis, NRI Medical College, Chinakakani, Guntur District, India.

Professor, Department of Radio-Diagnosis, NRI Medical College, Chinakakani, Guntur District, India.
Magnetic Resonance Neurography ,Schwannomas ,Neuromas and neurofibromas ,

Magnetic Resonance Neurography (MRN) is a tissue specific selective MRI technique directed at identifying and assessing the fine morphologic characteristics of the peripheral nerve, such as nerve caliber, alterations in signal intensity and relations with the nearby space occupying lesions and focal fibrosis /thickened fascia. MRN technique may be broadly categorized as T1, T2, STIR and DW based sequences. On MRN, the nerve features to be assessed include size, signal, course, perineural fat planes and enhancement (if contrast administered). The aim of the study is to study Peripheral Nerve Diseases by Magnetic Resonance Neurography in a group of 54 patients, having significant nerve related symptoms, who were referred to Department of Radio-diagnosis. MR imaging was performed with a clinical 1.5 T system (General electrical medical systems, Milwaukee, USA) in all patients. Present study shows male preponderance with 74 % and 26 % are females. In present study of 54 cases, 11 cases showed positive result in the form of nerve lesions like schwannomas, neuromas and neurofibromas, nerve compression and infiltration by adjacent soft tissue and bone tumors and nerve injury in the form of edema. This accounting for about 20.3%. In the present study most commonly studied nerves are cervical nerve roots accounting for 22.2% as most of the cases are cervical spine cases. On MRN in T1 sequence involved nerves show hypointensity in T1, hyperintenity in T2 &STIR, where as normal nerves appear as isointense. To conclude, Magnetic Resonance Neurography is accurate to image the normal fascicular structure of peripheral nerves and its distortion by mass lesions, trauma and demyelination, to identify abnormalities of various peripheral nerves and to evaluate the morphological changes in the muscles supplied by the affected nerves.

6 , 5 , 2016