The endoscopic anatomy study of the supratentorial ventricles

Objective To study the endoscopic anatomy of supratentorial ventricles and its clinical value.Methods The anatomic characters were observed in 15 cadavers and 20 hydrocephalus patients. In cadaver heads,the endoscope was guided into later ventricles via the front horn, occipital horn and posterior part of third ventricle.Results The body and occipital horn of the later ventricle could be observed via front horn approach.The posterior part and floor of third ventricle could be found via this approach,too.The choroids in the later ventricle could be found totally via occipital horn approach.The important“road mark”in the ventricle was the “Y” sharp structure at the Monroe hole.Conclusion The view field is the largest when someone observes ventricles via the front horn approach.The front horn approach is the best way of the treatment for lesions in the ventricles.The most part of choroid in the later ventricle can be found and coagulated.