[Carotid artery wall perfusion of the plaque: three dimensional contrast sonographic imaging].

We usually check stenosis rate in patients through the limited directions of angiography. This can result in insufficient evaluation. The importance of the condition of the carotid artery wall in fully accpted nowadays, and ultrasound sonography is being used as a means to study it.

Candesartan reduces superoxide production after global cerebral ischemia.

Excessive superoxide production after cerebral ischemia is known to mediate neuronal injury. Angiotensin II type 1 receptor activation results in production of superoxide, but whether angiotensin II type 1 receptor blockade prevents production of superoxide and subsequent neuronal injury after ischemia remains unclear. Normotensive rats received the angiotensin II type 1 receptor blocker, candesartan or only vehicle before induction of global cerebral ischemia.

[Ruptured internal carotid -posterior communicating artery aneurysm associated with an anomalous hyperplastic anterior choroidal artery and aneurysm: case report].

We report a rare case of a ruptured internal carotid-posterior communicating artery (IC-PcomA) aneurysm associated with an anomalous hyperplastic anterior choroidal artery (AchoA) and aneuysm. A 64-year-old woman was admitted to our hospital because of a sudden onset of headache. CT scan showed subarachnoid hemorrhage.

[Dissecting aneurysm of the middle cerebral artery with subarachnoid hemorrhage undetectable on preoperative neuroradiological findings: case report].

We report a rare case of a dissecting aneurysm (DA) of the middle cerebral artery(MCA) associated with subarachnoid hemorrhage(SAH) undetectable on preoperative neuroradiological findings. A 64-year-old man was admitted to our hospital because of a sudden onset of occipital headache. CT scan showed SAH mainly in the basal cisterns and left sylvian fissure.

[Multiple aneurysms of the distal posterior inferior cerebellar artery with recurrent hemorrhage undetectable on preoperative neuroradiological findings: case report].

We report a rare case of multiple aneurysms of the distal posterior inferior cerebellar artery (PICA) associated with recurrent hemorrhage undetectable on preoperative neuroradiological findings. A 68-year-old woman was admitted to our hospital in April, 2003 because of a sudden onset of headache, back neck pain and nausea. CT scan at the time of admission showed a hematoma in the 4th & 3rd ventricles, and a mild subarachnoid hemorrhage (SAH) in the basal, right ambient & quadrigeminal cisterns.