A Hybrid 1D and 3D Approach to Hemodynamics Modelling for a Patient-Specific Cerebral Vasculature and Aneurysm
نویسندگان
چکیده
In this paper we present a hybrid 1D/3D approach to haemodynamics modelling in a patient-specific cerebral vasculature and aneurysm. The geometric model is constructed from a 3D CTA image. A reduced form of the governing equations for blood flow is coupled with an empirical wall equation and applied to the arterial tree. The equation system is solved using a MacCormack finite difference scheme and the results are used as the boundary conditions for a 3D flow solver. The computed wall shear stress (WSS) agrees with published data.
منابع مشابه
Transradial Neurointerventional Approach to Basilar Tip Aneurysm: Case Report and Technical Note
Cerebral angiography through transfemoral approach is preferred in most of the situation though in cardiovascular surgery transradial angiography is accounted as the superior standard. The present study aimed at presenting our early experience of transradial approach to cerebral angiography and intervention of a patient with basilar tip aneurysm that had inappropriate vasculature to perform rou...
متن کاملA patient-specific study of blood flow in a cerebral aneurysm using medical images
Background: Cerebral aneurysm disease causes intracranial hemorrhage by rupturing, which can eventually, lead to organ failure or death. For this reason, it is important to anticipate the reasons for rupturing of a cerebral aneurysm from biomechanical point of view. Investigating this disease may even help the physicians to find treatments and predict the patient’s situation. This research was ...
متن کاملUnruptured Middle Cerebral Artery Aneurysm in a Patient with Systemic Lupus Erthematosus: A Diagnostic Challenge
A 22-year-old female patient presented to the Emergency Department of a tertiary care hospital with symptoms of headache and nausea. She has been on a regular follow-up for the preceding three and a half years after being diagnosed as systemic lupus erythematosus (SLE). She had been treated earlier for SLE nephritis in the same institution, and had two relapses of nephrotic syndrome in the last...
متن کاملRest versus exercise hemodynamics for middle cerebral artery aneurysms: a computational study.
BACKGROUND AND PURPOSE Exercise is an accepted method of improving cardiovascular health; however, the impact of increases in blood flow and heart rate on a cerebral aneurysms is unknown. This study was performed to simulate the changes in hemodynamic conditions within an intracranial aneurysm when a patient exercises. MATERIALS AND METHODS Rotational 3D digital subtraction angiograms were us...
متن کاملModelling Cerebral Aneurysm Evolution
We present a fluid-solid-growth model for the evolution of a saccular cerebral aneurysm on the internal carotid sinus artery. The model utilises a realistic constitutive model of the arterial wall that accounts for the structural arrangement of collagen fibres in the medial and adventitial layers, the natural reference configurations in which the collagen fibres are recruited to load bearing an...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- Medical image computing and computer-assisted intervention : MICCAI ... International Conference on Medical Image Computing and Computer-Assisted Intervention
دوره 12 Pt 2 شماره
صفحات -
تاریخ انتشار 2009