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Diffusion-weighted imaging, apparent diffusion coefficients, and fluid-attenuated inversion recovery MR imaging in
Zoran Rumboldt1, Christopher Moses, Ursula Wieczerzynski
1Department of Radiology, Medical University of South Carolina, Charleston, SC 29425, USA.
AJNR. American Journal of Neuroradiology
|August 11, 2005
Summary
Magnetic resonance imaging (MRI) aids in diagnosing bacterial endophthalmitis by detecting intraocular hyperintensity. Increased apparent diffusion coefficient values on MRI scans indicate a positive response to treatment.
Area of Science:
- Ophthalmology
- Radiology
- Infectious Diseases
Background:
- Endogenous bacterial endophthalmitis is a severe intraocular infection requiring prompt diagnosis and treatment.
- Magnetic resonance (MR) imaging is a valuable tool for evaluating orbital and ocular pathology.
Observation:
- The study details the MR imaging appearance of endogenous bacterial endophthalmitis before and during treatment.
- Specific MR sequences, including fluid-attenuated inversion recovery (FLAIR) and diffusion-weighted imaging (DWI), were utilized.
Findings:
- Intraocular hyperintensity on FLAIR and DWI sequences was a key indicator for diagnosing endophthalmitis.
- A significant increase in the mean apparent diffusion coefficient (ADC) values within the affected eye was observed post-treatment initiation.
Implications:
- These findings highlight the utility of specific MR imaging techniques in the diagnosis of bacterial endophthalmitis.
- Monitoring intraocular ADC values may serve as an objective marker for assessing treatment efficacy and patient recovery.