The Clinical Value Of Ultrasonography And Multi-slice Spiral Computed Tomography Angiography In Detection Of Extracranial Carotid Artery In Patients With Cerebral Infarction

Background Cerebral infarction is one of the three killers who threat to human lifesafety, of which2/3cases were caused by arteriosclerosis. Carotid artery stenosis induced byatherosclerosis is an important risk factor in ischemic cerebral vascular disease. Some ofStenosises may develop gradually to complete obliteration. Thus, it is crucial to accuratediagnosis and treatment of carotid atherosclerotic plaques. Accurate assessment of narrow range,accurate measurement of the stenosis degree and identification of plaque morphology,characteristics, are key to decide whether or not to operation and selection of operation modes. Ithas been widely demonstrated how the ultrasonography (US) is a good screening technique. Itcan display the vessel shape, the inner diameter of the lumen, wall intima-media thickness (IMT)and with or without plaques intravascular. The Doppler ultrasound can also obtain informationson hemodynamic. Multi-slice spiral CT angiography (MSCTA) is now widely employed in thestudy carotid arteries. It can clearly display the plaques and determine the degree of stenosis. Itcan provide more details of the lesions and anatomical information, that greatly facilitate theclinician evaluation of lesions and treatment.Objective To compare the clinical value of US and MSCTA in evaluation of carotid arteryatherosclerotic plaques in patients with cerebral infarction.Methods65patients with cerebral infarction underwent examinations of US and MSCTAwithin7days. The plaque with and without, location, qualitation and the degree of stenosis wereobserved.Results65patients with cerebral infarction were found42,43patients with plaques inextracranial carotid artery by US and MSCTA respectively. There was no statistically significantin detection rate of plaques between US and MSCTA. The overall concordance by two methodswas79%. US can also observe the carotid artery intima-media thickness and hemodynamics.Besides detection of extracranial carotid segment, MSCTA detected carotid in ospetrosum,cavernous sinus and intracranial section.Conclusion A close relation exists between carotid atherosclerotic plaques and cerebralinfarction. US has good complementation with MSCTA in detecting carotid atherosclerosis inpatients with cerebral infarction.