| 超声在医学诊断中的应用 |
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| 引用本文： | 杨庆余.超声在医学诊断中的应用[J].物理与工程,2003,13(2):41-45. |
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| 作者姓名： | 杨庆余 |
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| 作者单位： | 徐州师范大学物理系,江苏,徐州,221009 |
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| 摘 要： | 超声是频率高于20 000Hz的声波，由于它遇到障碍物能发生反射、透射，同时具有方向性好、穿透能力强等特征，很快在医学诊断中得到重要应用．本文着重阐述如何利用超声在人体各种组织内的传播特性不同而形成影像，对病理作出诊断提供依据。
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| 关 键 词： | 医学诊断 超声诊断 超声换能器 超声诊断仪 多普勒显像仪 |
THE APPLICATION OF ULTRASONIC IN MEDICAL DIAGNOSIS |
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| Yang Qingyu.THE APPLICATION OF ULTRASONIC IN MEDICAL DIAGNOSIS[J].Physics and Engineering,2003,13(2):41-45. |
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| Authors: | Yang Qingyu |
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| Abstract: | The ultrasonic is sound wave which frequency is higher than 20000Hz. Because of its reflection and transmission when meeting obstacle, the characteristics of nice to directionality and strong to penetrability, the ultrasonic is used in medical diagnosis very soon. In this paper, the transmission characteristics which ultrasonic transmit in human body can form different images are mainly discussed. Depending on these images pathology can be diagnosed. |
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| Keywords: | ultrasonic ultrasonic changer ultrasonic instrument Doppler imaging medical diagnosis |
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