Depending on surgeon preference, the10 gauge ventricular needle may first be used to locate the ventricle. 取决于外科医生的选择,量程为10的脑室针可以先用来找到脑室的位置。
Another reason is primary hemorrhagic cerebral ventricular obstruction ( hydrocephalus) which is related to breaking hematoma in ventricle before first operation and diffusion the blood in ventricle during and after operation. 另一原因是脑室梗阻,与第一次手术前血肿已破入脑室及术中、术后血液流入脑室系统有关。
The massive researches of the relationship between heart sound and cardiac muscle contraction ability indicate the amplitude of the first heart sound is connected with the fastest rate of the pressure rising in left ventricle. 心音和心肌收缩能力关系的大量研究表明,第一心音幅值的变化与左心室压力上升最大速率的变化呈正相关。
First the left ventricle is located using morphological method, then whose inner and outer contours are initialized using k-mean clustering, templet matching and the myocardium shape restoration based on skeleton. 然后用K均值聚类、模板匹配和基于骨架的心肌形状恢复方法给出左心室的内外初始轮廓线;
We first analyze the characteristics of the cardiac MR images and point out the difficulties in extracting the epicardium and endocardium of the left ventricle. 探讨心脏核磁共振图像左心室轮廓提取问题,分析了心脏核磁共振图像的特点以及左心室轮廓提取的难点。
First researches the left ventricle model and the dual elastic chamber model from the generation and propagation mechanism of human pulse wave. 首先从人体脉搏波的产生和传播机理出发,研究左心室模型及双弹性腔模型进而研究确定人体动脉系统的脉搏波数学模型。