| After several decades of development, neurological surgery has been over from the traditional type to modern minimally invasive neurosurgery, neurosurgery has entered a new era. Microscope And neuroendoscopic Has become the main equipment and instruments of a modern neurosurgery, The application of new technology and equipment will enhance the neurosurgical concepts and techniques to an unprecedented high。The excellent facilities were to improve the quality of basic security operations. Meanwhile, The clinical application of the traditional anatomy has also been further enhanced, Different anatomical extensively conducted research in many areas, for instance, cadaveric investigation, imaging anatomy, and so on was get off the ground. Above-mentioned studies to provide the necessary academic foundation for modern micro-neurosurgery.The history of the endoscopic treatment of nervous system decease is almost a century long. Through severe frustrations, great expectations, and significant achievements. The neuroendoscopic technology has made great achievements and gains. Application areas are gradually expanding. Endoscopic neurosurgery have branched to Endoscope-assisted microneurosurgery, Endoscope-cont rolled microneurosugery, or other subdisciplines. But the controversy are stilling exists in concept, manner, method or other areas in practical use has yet to be agreement or improved. Technology, basic and clinical research are lagging behind clinical needs, Not been able to fully meet the fast-growing demand for minimally invasive neurosurgery, this situation was became a limiting factor for development. Therefore, we are designed experiments of our basic studies was based on the neuroendoscopic clinical application. And also got a great deal of trustfulness conclusions, we believe that these conclusions can affect endoscopic application in clinical; In the same times, To carry out the experiment was also based on neural minimally invasive techniques as an opportunity to Social Development Fund (2005B30501008) and New technologies new business research fund (20050010), therefore, The completion of the study is inseparable from the Fund's support.Now, the neuroendoscopic techniques can finish widely operations. With the advances in equipment development, the area of application of neuroendoscopic is also expanding. In the same way, Endoscopic technology can also bring a lot of complications, Although it has structural damage human tissue smaller than the other technologies. Operation in a narrow Channel also can be a disadvantage. Besides, endoscopic has it's special visual angle, This requires the operator has a higher technical requirements; Familiar with anatomical structure of surgical site proficiency is particularly important. This has provided a guarantee for the safe operation. For example, Ventricular structure is relatively complex, The use of neuroendoscopic technology treating disease need base on different situations adopt different means. Nevertheless, such cauterization operation can seek better way from A lot of different operation approach. This also is the task to explore one of our objectives. with another words, through the anatomical study provide the anatomical basis for the neuroendoscopic surgery。This study were divided into two parts of observed for the shape of choroid plexus and measurement of the diameter of choroid vessels in totally 8 (16sides) formalin-fixed adult human head specimens. First, the Structure for the lateral ventricle choroid plexus were observed, Observe the overall pattern, the starting position, the distribution of Traveling with the ventricles, and so the relationship between spatial structure of the corresponding, depends on the shape, width and curve identify approach point of the endoscopic transoccippital surgery. Second, finished measurement of the diameter of choroid vessels, and further observation of the main feeding artery of lateral ventricle Choroid plexus Anterior Choroidal Artery(ACHA). Aimed at its blood vessel regional and branch. Additionally, we also retrospect the MRI or CT image documents about the temporal lobe cyst and papilloma of choroid plexus that Appears on the way of anterior choroidal artery. And to summary the basic principles or tips for related operations.The measurements showed that mainly of the choroid plexus was located at the triangle part and temporal horn of lateral ventricle. The width of temporal choroid plexus were 6.40±0.64mm, choroid glomus were13.53±1.03mm, and body of lateral ventricle were 3.70±0.59mm. These widths were significant difference (P< 0.05). The ideal approach point of the endoscopic transoccippital surgery should be located 5cm above the occipital protuberance and 3cm aside from the midline. The direction should be conducted to collateral eyeball (pupil) or middle of eyebrow.The choroid plexus is supplied by the vessels from choroid fissure, and the choroid glomus is supplied by the lateral branch of anterior choroid artery which give rise to the parallel arteries in the lateral portion of the choroid plexus and without branch to the thalamencephalon, subependyma and temporal lobe. This artery can cut off safely and effectively during the choroid plexus cauterization and other kinds of operation. And,can avoid damage to the main anterior choroid artery trunk affect the blood supply to a wide area. This method can be achieved to reduce bleeding and to avoid damaging the dual purpose of in surgical treatment. Additionally, there are a lots of important relationships between temporal lobe arachnoid cyst and ubarachnoidal sinuses. Specially during malformation of brain structure. So that, The operator should ware the mislead of malformation. Through research to have a better understanding of what we already knowns, A study combining different disciplines can enhance relationship between the anatomy and clinical. Analysis of normal and abnormal situations also provides a reference for the Microsurgery operation.
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