adscendent ['ædsən,dənt]
- adscendent的基本解释
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上升的
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Objective To investigate the effectiveness of MRI in HIFU treatment and study the relation among the regions of changed MRI signals, adscendent temperature in T-MAP and practical necrosis. Materials and methods 1 Experiment ex vivo 1.1 MRIgHIFU system was used.
目的 探讨MRI在HIFU辐照生物组织中的作用,研究MRI组织信号变化区域及MRI温度图中温度明显升高区域与实际损伤之间的关系,探索MRI在HIFU治疗中的作用和意义。
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SPSS11.5 and excel statistical software were performed for the statistical analysis. 2. Experiment in vivo MRIgHIFU thermocoagulation was carried out in muscular tissues of rabbits. The parameters were power-250W and time-15s under the dot irradiating. MRI T-MAP was observed during treatment and the region size of adscendent temperature was measured (blue:45℃-50℃,green:50℃-55℃,yellow:55℃-60℃,red:60℃-100℃).Af-ter treatment, firstly, scan PD_tse and T2_tse, secondly, observe the changed signals of these images and measure the regions, finally, observe skin damage and measure the tissue necrosis.
活体实验以正常新西兰大白兔作为实验对象,辐照参数为声功率250W,辐照时间15s,选择大腿肌组织为靶区行定点辐照,观察靶区表面皮肤损伤情况, HIFU辐照过程中观察MRI温度图变化,测定不同温度的颜色范围(蓝色45℃~50℃,绿色50℃~55℃,黄色55℃~60℃,红色60℃~100℃),辐照结束后观察T2和PD图像的信号变化并测量其范围大小,分别与实际组织损伤作比较,结果应用SPSS11.5统计软件包和Microsoft Excel软件进行分析。
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adscendent:上升的
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