Open AccessMagnetic resonance imaging of the orbit, Part 2: Characterization of orbital pathologies
Author(s) -
Chinmay Nagesh,
Raksha Rao,
Shivaprakash B Hiremath,
Santosh G Honavar
Publication year - 2021
Publication title -
indian journal of ophthalmology/indian journal of ophthalmology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.542
H-Index - 51
eISSN - 1998-3689
pISSN - 0301-4738
DOI - 10.4103/ijo.ijo_904_21
Subject(s) - medicine , magnetic resonance imaging , vascularity , orbit (dynamics) , radiology , differential diagnosis , lesion , orbital diseases , biopsy , pathology , computed tomography , engineering , computed tomographic , aerospace engineering
In this article we focus on a systematic approach to assess common orbital lesions on magnetic resonance imaging (MRI). The identification of the probable compartment or structure of origin helps narrow the differential diagnosis of a lesion. Analyzing the morphology, appearance, and signal intensity on various sequences, the pattern, and degree of contrast enhancement are key to characterize lesions on MRI. Imaging features suggesting cellularity and vascularity can also be determined to help plan for biopsy or surgery of these lesions. MRI can also distinguish active from chronic disease in certain pathologies and aids in selecting appropriate medical management. MRI may thus serve as a diagnostic tool and help in guiding therapeutic strategies and posttreatment follow-up.