APPLIED POTENTIAL TOMOGRAPHY - POSSIBLE CLINICAL-APPLICATIONS
APPLIED POTENTIAL TOMOGRAPHY - POSSIBLE CLINICAL-APPLICATIONS
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DOI：
10.1088/0143-0815/6/2/002
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发表时间：
1985-01-01
期刊：
影响因子：
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通讯作者：
SEAGAR, AD
中科院分区：
文献类型：
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作者：
BROWN, BH;BARBER, DC;SEAGAR, AD
在过去的几年中，应用电位断层扫描（APT）或电阻抗成像受到了相当大的关注，并产生了一些体内图像。本文综述了目前的情况，在体内的结果已经和可能会在不久的将来获得。静态和动态成像都是可能的，并且这两个区域被单独处理。现有体内成像系统的特征是良好的组织对比度、高速数据收集、对电阻率变化的良好灵敏度、低空间分辨率、低成本和无已知危险。得出的结论是，短期内最有希望的临床应用方法是使用动态成像而不是静态成像。肺成像的一个例子显示和应用程序来测量区域通气和肺水肿进行了讨论。使用APT检测新生儿脑室内出血进行了讨论，是证明有能力研究胃的生理成像电阻率分布的变化后，摄入的导电或绝缘液体。考虑的其他可能的应用领域是血流测量、细胞计数、瘦脂肪比的测量和软组织病变的检测。
Applied potential tomography (APT) or electrical impedance imaging has received considerable attention during the past few years and some in vivo images have been produced. This paper reviews the current situation in terms of what in vivo results have been and are likely to be obtained in the near future. Both static and dynamic imaging are possible and these two areas are dealt with separately. Features of the existing in vivo imaging system are good tissue contrast, high-speed data collection, good sensitivity to resistivity changes, low spatial resolution, low cost and no known hazard. It is concluded that the most promising way forward to clinical application in the short term is to use dynamic as opposed to static imaging. An example of lung imaging is shown and the application to measuring regional ventilation and pulmonary oedema is discussed. Use of APT for the detection of intraventricular bleeding in neonates is discussed as is the proven ability to study gastric physiology by imaging resistivity distribution changes following the ingestion of conducting or insulating fluids. Other areas of possible application which are considered are blood flow measurements, cell counting, measurement of lean-fat ratios and the detection of soft tissue lesions.