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Magnetic resonance imaging in multiple sclerosis: results in 32 cases.
AJNR. American Journal of Neuroradiology
|March 1, 1985
Summary
Magnetic resonance (MR) imaging and delayed enhanced computed tomography (CT) show varying sensitivity for detecting multiple sclerosis (MS) lesions. MR imaging is superior for chronic progressive MS, while both methods struggle with lesion localization compared to neurologic examination.
Area of Science:
- Neurology
- Radiology
- Medical Imaging
Background:
- Multiple sclerosis (MS) diagnosis relies on identifying CNS lesions.
- Evaluating the sensitivity and localization accuracy of advanced imaging techniques is crucial for MS assessment.
Purpose of the Study:
- To compare the sensitivity of neurologic examination, delayed enhanced computed tomography (CT), and proton magnetic resonance (MR) imaging in detecting multiple sclerosis lesions.
- To assess the accuracy of lesion localization by these methods.
Main Methods:
- A prospective study involving 32 multiple sclerosis patients.
- Patients underwent neurologic examination, delayed enhanced CT with double contrast dose, and MR imaging using multiple spin-echo techniques.
Main Results:
- MR imaging detected pathology in 76% of definite MS cases, compared to 60% for delayed CT.
- For acute lesions, sensitivity was similar (CT 65%, MR 60%).
- MR imaging showed superior sensitivity for chronic progressive MS lesions (MR 75%, CT 25%).
Conclusions:
- MR imaging demonstrates higher sensitivity than delayed CT for detecting MS lesions, particularly in chronic progressive disease.
- Neither imaging technique accurately correlated with lesion localization by neurologic examination due to asymptomatic lesions and missed symptomatic ones.