A 25-year-old man presented with a 3-month history of gradually progressive right side hemiparkinsonism. On examination his Unified Parkinson Disease Rating Scale motor score was 12 on the right side. There were no other abnormal neurologic findings. Brain MRI and angiography showed a giant thrombus containing aneurysm of the left middle cerebral artery compressing the left basal ganglia (figur...

A 57 year old female presented with acute onset headache started from 1 month before the current visit. The headache was located on the left frontotemporal area and had increased during the month. On brain CT scan, there were bilateral round hyperdense lesions in the sylvian fissure which were flow void on brain MRI indicating aneurysms. Brain DSA (digital subtraction angiography) was performed...

Infraoptic anterior cerebral artery (ACA) is an extremely rare congenital anomaly. This anomalous artery usually arises from the intradural internal carotid artery (ICA) near the level of the ophthalmic artery (OA) or rarely from the extradural ICA. This anomaly frequently harbors a cerebral aneurysm, and may involve other coexisting vascular anomalies. In the case of this anomaly, surgical tre...

Objective: Image evaluation after stent-assisted coil embolization (SAC) for a cerebral aneurysm is difficult with conventional MRA or CTA because of metal artifacts. Pointwise encoding time reduction radial acquisition (PETRA)-MRA noninvasive imaging examination that can reduce This study aimed to examine whether PETRA-MRA be used as follow-up SAC.

BACKGROUND Integration of data from clinical trials and advancements in technology predict a change in selection for treatment of patients with cerebral aneurysm. OBJECTIVE To describe patterns of use and in-hospital mortality associated with surgical and endovascular treatments of cerebral aneurysms over the past decade. MATERIALS AND METHODS The data are 34 899 hospital discharges with a ...

Cerebral aneurysms are thought to develop at locations of hemodynamic shear stress, via an inflammatory process. The molecular mechanism that links shear stress to inflammation, however, is not completely understood. Progress in studying this disease is limited by a lack of a suitable in vitro model. To address this, we designed novel in vitro parallel-plate flow chamber models of a straight ar...

OBJECTIVE To report our surgical experience using in situ end-to-side bypass for giant serpentine distal anterior cerebral artery aneurysm, unsuitable for microsurgical clipping. METHODS A 49-year-old woman presented with headache and intermittent loss of consciousness. The brain computed tomography scan revealed a partially calcified mass in the interhemispheric fissure. On cerebral angiogra...

BACKGROUND AND PURPOSE Preoperative assessment of the anatomy and dynamics of cerebral circulation for patients with giant intracranial aneurysm can improve both outcome prediction and therapeutic approach. The aim of our study was to use perfusion MR imaging to evaluate cerebral hemodynamics in such patients before and after extraintracranial high-flow bypass surgery. METHODS Five patients w...

Our objective was to evaluate the clinical value of numerical simulation in diagnosing cerebral aneurysm based on the analysis of numerical simulation of hemodynamic model. The experimental method used was the numerical model of cerebral aneurysm hemodynamic, and the numerical value of blood flow at each point was analyzed. The results showed that, the wall shear stress (WSS) value on the top o...

BACKGROUND AND PURPOSE The HydroCoil Embolic System (HES) was developed to improve the efficacy of endovascular treatment of cerebral aneurysms. The purpose of this study is to study the periprocedural results in patients with cerebral aneurysms treated with HES. METHODS We report the initial periprocedural results in 191 cerebral aneurysms treated with HES in the HydroCoil for Endovascular A...