Keywords : Peak systolic velocity
ROLE OF COLOUR DOPPLER ULTRASOUND AND MR ANGIOGRAPHY IN EVALUATION OF EXTRA CRANIAL CAROTID ARTERIES IN STROKE PATIENTS
European Journal of Molecular & Clinical Medicine,
2020, Volume 7, Issue 9, Pages 1083-1089
Introduction: The role of Color Doppler USG and MRA in the evaluation of extracranial carotid arteries in stroke patients and to detect the atherosclerotic plaque and to characterize the atherosclerotic plaque with the help of Doppler ultrasound and MRA is described in this purpose of study.
Materials and Methods: NASCET Grading of percentage of stenosis, Doppler ultrasound was done and compared with MR Angiography TOF sequence and IV contrast in detection of plaque, plaque characterization and percentage of stenosis.
Results: Males are seen to be affected grossly more than females. Systemic hypertension is found to be the most common risk factor associated with stroke and the least was found to be ischemic heart disease. The right side is seen to be more commonly affected by atheromatous plaque followed by left side, with less bilateral involvement. ICA was found to be the most commonly involved site. Most of the cases had no significant stenosis, only few cases showed significant stenosis with hemodynamic changes. Homogenous soft plaques were found to be common than calcified and ulcerated plaques.
Conclusion: Both modalities of ultrasound and MR Angiography the advantage of endarterectomy in symptomatic patients is clearly seen with more percentage of stenosis. In combination with MRI, Doppler USG has shown to be a safer, non-invasive and precise way of diagnosing and measuring an extracranial component of carotid disease and thereby helping to accurately treat it.