Stroke is one of the leading and second most common cause of death. This study involves
parameters of plaque morphology on ultrasound, which can depict the type of future cerebrovascular event and
helps to take prerequisite measures to avoid the same. In this study there is comparison between conventional
classification that involves only echogenicity and new modulated carotid plaque index which involves plaques
which are ulcerated, calcified, echogenic, having intraplaque haemorrhage and vascularity , thus characterizing
them into high risk and low risk .Objectives: To study carotid plaque morphology in cerebrovascular events by
classifying them into high risk and low risk according to the modulated plaque index .To correlate type of carotid
plaque morphology with MRI brain findings. To compare the conventional classification with modulated plaque
index . A total of 82 patients who had plaques in carotid arteries will be selected and plaque characterization
will be done into high risk and low risk was done. Follow up MRI scans will be conducted to check for any
cerebrovascular events Results: The sensitivity, specificity, positive predictive value, negative predictive value
and accuracy of the modulated plaque index should be more than that of the conventional classification.
Maximum number of patients with calcified plaques should have T2 /FLAIR Periventricular hyperintensities
whereas those with ulcerative plaques should have cortical infarcts as their MR brain findings .Conclusion: Using
carotid doppler, modulated plaque index has a better prognostic value compared to conventional classification
for the evaluation of cerebrovascular events.
Carotid plaque morphology, Modulated carotid plaque index, MRI brain, Infarcts
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