■三角形凹槽(TR),也称为三角窝或外阴大脑,代表间脑心室的前延伸,位于穹窿前柱和白色前连合之间。随着时间的推移,第三脑室的这种结构产生了许多争议。虽然一些解剖学家支持它的存在,其他人有相反的意见,考虑到它仅在某些条件下可见。研究的目的是展示三角形凹槽的有形结构。其次,定量分析使我们能够建立解剖形态标准,以及与标准的偏差。
■我们的研究是对三角窝的定量和定性评估。我们解剖了100个非神经系统的成人大脑,在10%甲醛溶液中固定10周。这些样本是解剖学研究所收集的一部分,“GrigoreT.Popa”医学与药学大学,雅西.我们通过在III心室顶部的两个阶段进行解剖来突出显示三角形窝。
■定性分析是对有关三角窝解剖结构的经典数据的重新评估。我们提出了三角形凹陷的原始3D模型,其中我们描述了一个称为前庭的浅层部分和一个称为profunda的深层部分。我们测量了两个拟议部分之间沟通的双方,以及与III心室的通信。通过应用Heron\的公式,我们计算了两个通信的面积。统计评估表明,这些通信高于广泛。此外,两种通信的表面之间存在统计学差异:34.07mm2±7.01vs.271.43mm2±46.36(p=0.001)。
■我们的研究结果是定性和定量的。首先,我们证明了三角窝的存在,并设想了这种结构的空间划分。其次,进行的测量建立了三角形凹陷的解剖形态标准,这对于在第三内镜脑室镜检查期间评估脑积水的程度很有用。
UNASSIGNED: The triangular recess (TR), also called triangular fossa or vulva cerebri, represents the anterior extension of the diencephalic ventricle, located between the anterior columns of the fornix and the anterior white commissure. Over time, this structure of the third cerebral ventricle generated many disputes. While some anatomists support its presence, others have opposite opinions, considering that it only becomes visible under certain conditions. The aim of the study is to demonstrate the tangible structure of the triangular recess. Secondly, the quantitative analysis allowed us to establish an anatomical morphometric standard, as well as the deviations from the standard.
UNASSIGNED: Our study is both a quantitative and a qualitative evaluation of the triangular fossa. We dissected 100 non-neurological adult brains, which were fixed in 10% formaldehyde solution for 10 weeks. The samples are part of the collection of the Institute of Anatomy, \"Grigore T. Popa\" University of Medicine and Pharmacy, Iasi. We highlighted the triangular fossa by performing dissections in two stages at the level of the roof of the III ventricle.
UNASSIGNED: The qualitative analysis is a re-evaluation of the classical data concerning the anatomy of the fossa triangularis. We proposed an original 3D model of the triangular recess in which we described a superficial part called vestibule and a deep part called pars profunda. We measured the sides of the communication between the two proposed segments, as well as the communication with the III ventricle. By applying the Heron\'s formula, we calculated the area of the two communications. Statistical evaluations have shown that these communications are higher than they are wide. In addition, there is a statistical difference between the surfaces of the two communications: 34.07 mm2 ± 7.01 vs. 271.43 mm2 ± 46.36 (p = 0.001).
UNASSIGNED: The outcome of our study is both qualitative and quantitative. Firstly, we demonstrated the existence of the triangular fossa and we conceived a spatial division of this structure. Secondly, the measurements carried out establish an anatomo-morphometric norm of the triangular recess, which is useful in assessing the degree of hydrocephalus during the third endoscopic ventriculoscopy.