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ISSN 2063-5346
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“A study on role of MRI in the evaluation of ring enhancing lesions in brain with relation to MR Spectroscopy in a tertiary care hospital”

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Dr. P. Navyatha, Dr. Ritesh Kumar, Dr. Bharath Mathangi
» doi: 10.31838/ecb/2023.12.si4.212

Abstract

Magnetic resonance imaging (MRI) has been a reliable diagnostic technique in neuroradiology over the past few years. The ability to distinguish between distinct cerebral lesions is now available thanks to cutting-edge MRI techniques including perfusion, diffusion, and spectroscopy. OBJECTIVES: 1. By using conventional and advanced MR imaging techniques neoplastic from non-neoplastic brain lesions are differentiated. 2. To study the characteristic imaging findings of various ring enhancing lesions on MRI. 3. By using Conventional MRI, to establish a differential diagnosis of various ring enhancing lesions. 4. To study the role of MR spectroscopy in the evaluation of various ring enhancing lesions in the brain with a single voxel proton MR spectroscopy. MATERIAL & METHODS: Study Design: A prospective hospital based cross sectional study. Study area: Department of Radio diagnosis, in Mamata General Hospital, Khammam. Study Period: Jan. 2017 – Dec.2018. Study population: Patients referred from Dept. of Neurosurgery, General Medicine to the Dept. of Radio-diagnosis in Mamata General Hospital, Khammam. Sample size: study consisted of 60 subjects. Sampling method: Simple random technique. Study tools and Data collection procedure: All patients referred to the department of Radio diagnosis with clinically suspected cerebral ring enhancing lesions within study period will be subjected for the study. Basic demographic details, clinical data obtained from study subjects will be recorded in a pre-designed proforma. EQUIPMENT USED: The evaluation of cases in department of radio diagnosis will be done using Siemens Avanto 1.5 Tesla MRI. Results: Out of 60 patients evaluated, tuberculomas were seen in 28 (46.6%) of cases. Among the 28 cases (males = 18: females = 10). Single lesions were noted in 9 cases (32.1%) and multiple in 19 cases (67.9%). They were seen as conglomerate lesions which were hypointense on both T1 and T2. On T1 weighted images15 cases showed an iso to hyperintense ring. 21 cases (75%) showed partial/complete restriction. CONCLUSION: From our study it can be concluded that, MRI was the most sensitive modality in the characterization of intracranial ring enhancing lesions. MRI plays a critical role in patient management by suggesting the correct diagnosis based on characteristic imaging findings. MRS helps in characterization of various ring enhancing lesions. However, no lesion can be diagnosed based on the findings of MRS as the sole criteria.

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