Results of the 12 benign cases, 10 cases showed cystic destruction paralleled to the long axis of rib, 4 cases complicated sandy calcification. 6 malignant tumors showed clear boundary osteolytic destruction and there is soft tissue protruding to thoracic cavity on CT. 结果12例良性病变平片显示与肋骨长轴一致的囊性破坏者10例,4例伴有砂粒状钙化,6例恶性肿瘤均显示边界清楚的溶骨性破坏,CT显示软组织肿块突人胸腔。
The size, boundary and surrounding tissue of the tumor were clearly delineated in the fusion image. Hence it was possible for localization of biological target volume in radiotherapy and also for assessment of the resected extent for surgery. PET/CT融合图像显示肿瘤的大小、边界及与周围组织结构的关系清楚,能为放疗准确提供生物靶区定位,为外科手术提供切除范围,临床随访效果满意。
Key techniques on virtual endoscopy are researched in this paper. We use boundary model and local feature structure to realize tissue segmentation. 针对实现虚拟内窥镜系统的关键技术,运用基于边界模型的局部特征结构方法实现图像的组织分割;
This paper studied the laser-induced autofluorescence ( LIAF) transportation mechanism in tissue by a series of Monte-Carlo simulations and investigated the effects of boundary condition, optical properties, structure, and the quantum yield of tissue chromophores on LIAF spectra. 利用一系列蒙特卡罗(MonteCarlo)模拟研究自体荧光在组织中的传输规律,分析组织的光学参数、结构、边界条件以及组织荧光团的量子产量等因素对荧光光谱的影响。
A governing equation at the freezing boundary of tissue like material was presented. 本文提出类生物组织有机体在冻结界面上的传热控制方程。
CT could also demonstrate some findings not revealed on plain film, such as the boundary between tumor and surrounding soft tissue, necrosis and bleeding, joint invasion by tumor, and skip lesions. CT还可显示平片不可见或难以发现的征象:肿瘤与周围软组织的分界、肿瘤坏死、出血、肿瘤侵犯关节及跳跃性病灶。
For 2D real head model, the scalp boundary nodes potential distribution has been studied when the encephalic pathological tissue changes its kind, area or position. 对二维真实头模型,分析了大脑组织在异变的种类、大小、位置不同时头皮边界节点电位分布情况。
Boundary condition ′ s influence on Simulation of time resolved reflectance for biological tissue 边界条件对生物组织漫射光时域模拟计算的影响
Ectodesmata-like existed at the wall boundary be-tween the declining tissue and the living cells in the garlic during germination period. 并观察到萌芽期鳞片中衰败细胞与存活细胞之间有类外连丝型胞间连丝的存在;
Firstly the difference between brain tissue and the tissues around it is widened using image progressing method. Then the boundary of the brain tissue is got using boundary tracking method and the brain tissue is cut out which is inside the boundary. 首先对二维序列图像进行预处理,通过调整图像灰度,加强脑组织与周围组织的灰度差,然后利用边缘跟踪算法得到脑组织的准确边界,并将脑组织提取出来。
Simulate the case that in uniform tissue distributing foreign objects ( simulate lump) with different elasticity contrast, select imposing the appropriate boundary conditions, come to its displacement distribution and strain distribution map which under the conditions of the uniform tissue containing foreign objects. 3. 模拟在均匀组织模型中,置入与均匀组织弹性比不同的异物(模拟肿块)情况下,选择施加适当的边界条件,获得了在均匀组织内含有异物条件下的位移分布及应变分布图。
Under the case that in the same boundary conditions and elasticity contrast, study the strain distribution map in x-direction when the tissue distributing different foreign objects, which results providing some reference value for the further theoretical and experimental studies. 在边界和弹性比相同条件下,研究了不同异物分布时的x方向应变分布图。其结果对进一步的理论和实验研究提供了一定的参考价值。
It seems that there is clear boundary between adenoid cystic carcinoma and peripheral tissue in salivary gland. But there is no envelope around the tumor, and the tumor often infiltrates peripheral tissue. 涎腺组织内发生的腺样囊性癌大体上似与周围组织界限清楚,但剖面所见肿物无包膜,仔细审视可见其向周围组织浸润情况。