A1:大脑前动脉第一段;A2:大脑前动脉第二段;ACA:大脑前动脉;AICA:小脑前下动脉;BA:基底动脉;CTA:计算机断层扫描血管造影;DSA:数字减影血管造影;ICA:颈内动脉;M1:大脑中动脉第一段;M2:大脑中动脉第二段;MCA,大脑中动脉;MRA,磁共振血管造影;P1,大脑后动脉第一段;P2,大脑后动脉第二段;PCA,大脑后动脉;PICA,...
Stroke is a leading cause of morbidity and mortality, and imaging has evolved as a critical tool for diagnosis and treatment guidance. Noncontrast CT assesses the extent of ischemic changes, for the presence of intracranial hemorrhage and for stroke mimics. MRI demonstrates a higher sensitivity and...
The identification of cortical border-zone areas, characterized by moderate CBF, is also challenging due to their location at the junctions of major cerebral arteries (e.g., between the anterior cerebral artery (ACA) and MCA or the MCA and posterior cerebral artery (PCA)). Similarly, the ...
Middle cerebral artery (MCA)Posterior cerebral artery (PCA)strokeVertebrobasilar arteries (VB)According to WHO, Stroke is the 2nd leading cause of death and disability after Ischemic heart disease. Prevalence rate of stroke in India varies from 44.45 to 150 per lakh population. Studies have ...
-Contralateral homonymous hemianopsia (field loss deficit in the same halves) *ddx: can happen w/ MCA but moer often its PCA*-Ipsilateral cranial nerve deficits and contralateral motor deficits (crossed findings, a hallmark of posterior circulation stroke)-Visual agnosia (impairment of recognizing ...
With the progression of MMD, the ID of the ICA gradually decreases [11, 13], and the velocity of the ICA also decreases due to the increase in resistance in the distal ICA. The decrease in the ID and PSV of the ICA leads to hypoperfusion in the ACA and MCA regions [14]. ...
Unable to recognize objects and their colors Dyslexia Clinical Manifestation of PCA syndrome. Difficulty reading. People who have MCA syndrome will have intention tremors, choreoathetosis, and hemiballismus. Why Because the MCA supplies most of the subthalamic nuclei of the basal ganglia Paresis of...
Montreal Neurological Institute MCA: Middle Cerebral Artery PROM: Passive Range of Motion PF/DF: Plantarflexion/Dorsiflexion PCA: Posterior Cerebral Artery SD: Standard Deviation ROI: Region-of-Interest UMN: University of Minnesota V4: Intradural Vertebral Artery ...
Leptomeningeal collaterals (LMCs) are pial anastomotic vessels connecting a fraction of the terminal branches of the middle cerebral artery (MCA) with terminal branches of the anterior (ACA) and posterior (PCA) cerebral arteries.9 Although LMCs exhibit minimal flow under normal physiological conditions...
Those variables were measured in nine main cerebral arteries, including the bilateral vertebral artery (VA), bilateral middle cerebral artery (MCA), bilateral anterior cerebral artery (ACA), bilateral posterior cerebral artery (PCA) and basilar artery (BA), using a colour Doppler ultrasound imaging ...