دانلود مقاله Simulating Hydrocephalus by a Novel Model of Cereb

دانلود مقاله Simulating Hydrocephalus by a Novel Model of Cerebrospinal Fluid Circulation pdf داراي 6 صفحه مي باشد و داراي تنظيمات در microsoft word مي باشد و آماده پرينت يا چاپ است

فايل ورد دانلود مقاله Simulating Hydrocephalus by a Novel Model of Cerebrospinal Fluid Circulation pdf کاملا فرمت بندي و تنظيم شده در استاندارد دانشگاه و مراکز دولتي مي باشد.

اين پروژه توسط مرکز مرکز پروژه هاي دانشجويي آماده و تنظيم شده است

توجه : در صورت  مشاهده  بهم ريختگي احتمالي در متون زير ،دليل ان کپي کردن اين مطالب از داخل فايل ورد مي باشد و در فايل اصلي دانلود مقاله Simulating Hydrocephalus by a Novel Model of Cerebrospinal Fluid Circulation pdf ،به هيچ وجه بهم ريختگي وجود ندارد

بخشي از متن دانلود مقاله Simulating Hydrocephalus by a Novel Model of Cerebrospinal Fluid Circulation pdf :

سال انتشار: 1385

محل انتشار: سيزدهمين کنفرانس مهندسي پزشکي ايران

تعداد صفحات: 6

چکيده:

Hydrocephalus is an abnormal accumulation of Cerebrospinal Fluid within a cavity called Subarachnoid Space
inside the brain as a result of deficits in secretion or absorption procedures. It is believed that Arachnoid Villi cells, which are microscopic projections of Pia-Arachnoid mater that extend into venous chaels in Sagittal Sinus providing CSF-vascular interfaces, are the main site for Cerebrospinal Fluid absorption, but it is tempting to speculate that a significant portion of Cerebrospinal Fluid is removed from the Subarachnoid Space by nasal lymphatic vessels around olfactory nerve. In this paper, we proposed a comprehensive model of Cerebrospinal Fluid-Lymphatic-Blood circulation to simulate Hydrocephalus, in which in contrast to other modeling papers, two output pathways for Cerebrospinal Fluid absorption have been considered. The first common pathway pertains to Arachnoid Villi cells and the second novel one to nasal lymphatic vessels. Besides, the bulk flow mechanism that occurs during Cerebrospinal Fluid absorption via Arachnoid Villi cells has been considered in our model. To conform to the physiological conditions that exist in Hydrocephalus disorder, the corresponding elements of circuit have been changed to simulate the effect of each of two pathways. The results showed that for development of Hydrocephalus disorder, the deficit in lymphatic network has more considerable effect in Cerebrospinal Fluid absorption compared with the deficit in Arachnoid Villi cells. It is clarified that Cerebrospinal Fluid is mainly absorbed in lymphatic network and thus, disorders in lymphatic pathway may noticeably result in disorders in Cerebrospinal Fluid i.e. high pressure Hydrocephalus.