Presence of susceptibility sign on middle cerebral artery (MCA) in T2 (∗) -weighted magnetic resonance (MR) images has been reported to detect acute MCA thromboembolic occlusion. However, the pathophysiologic course of thrombotic MCA occlusion differs from embolic occlusion, which might induce different imaging characters. Our study found that the occurrence rate of the MCA susceptibility sign ...

The majority of MCA aneurysms are saccular lesions that arise at the MCA bifurcation region [1-5]. Aneurysms involving the M1 segment are less common, accounting for approximately12% of MCA aneurysms, and are generally small saccular lesions at the origin of the anterior temporal artery or a lenticulostriatal perforator [6,7]. MCA-M1 fusiform lesions vary significantly from their saccular count...

A 50-year-old female developed subarachnoid hemorrhage due to rupture of a giant aneurysm in the left middle cerebral artery (MCA). One month later, direct surgery was performed on the aneurysm. The superficial temporal artery was anastomosed to the cortical artery of the parietal MCA segment. The MCA was exposed and trapped for 40 minutes during barbiturate infusion, with electroencephalograph...

Case report: A 37-year-old man was admitted for a right MCA transient ischaemic attack. He was smoker, obese, dyslipidaemic, with previous history of heroin addiction and cured B and C hepatitis virus infections. Brain magnetic resonance and cardiac evaluation were normal. Transcranial color-coded sonography (TCCS) showed >50% proximal right MCA stenosis and distal left MCA occlusion. Treatment...

BACKGROUND AND PURPOSE This study had 2 goals: (1) to assess interrater reliability of academic neuroradiologists when classifying acute infarction by CT scan as >1/3 middle cerebral artery (MCA) involvement, <1/3 MCA involvement, or no infarction and (2) to determine the sensitivity of physicians potentially involved in acute stroke treatment in detecting >1/3 MCA acute infarctions. Studies of...

BACKGROUND Activated hepatic stellate cells (aHSCs) play an important role in the progression of hepatocellular carcinoma (HCC). Here, we determined if cytokines secreted in response to the herbal compound "Songyou Yin" (SYY) treatment of aHSCs could influence invasiveness and metastatic capabilities of hepatoma cells. METHODS Primary rat hepatic stellate cells (HSCs) were isolated, activated...

Facial cooling (FC) increases cerebral blood flow (CBF) at rest and during exercise; however, the mechanism of this response remains unclear. The purpose of the present study was to test our hypothesis that FC causes facial vasoconstriction that diverts skin blood flow (SkBF(face)) toward the middle cerebral artery (MCA V(mean)) at rest and to a greater extent during exercise. Nine healthy youn...

The role of surgical revascularization for patients who have ischemic disease remains controversial. Despite the previous EC-IC bypass trial that failed to demonstrate the benefit from STA-MCA bypass compared with medical therapy, however, there is mounting evidence that the procedure should be considered in selected patients. Bypass remains a mainstay of treatment in moyamoya disease and in fl...