Intraoperative impedance monitoring during CT-guided stereotactic biopsies.
Intraoperative impedance monitoring during CT-guided stereotactic biopsies.
复制标题
CT 引导立体定向活检期间的术中阻抗监测。
DOI：
10.1159/000099482
复制
发表时间：
1989
影响因子：
1.7
通讯作者：
Bullard,DE
中科院分区：
文献类型：
--
作者：
Bullard,DE
在这项研究中，计算机断层扫描（CT）的特点，术中阻抗监测和组织学特征之间的关系进行了评估，在46例。术前，确定活检针拟定轨迹的CT特征，并在术中与单极电极获得的阻抗曲线相关联。高分辨率CT密度特征与阻抗模式之间存在良好的相关性（r = 0.897）。CT模式/阻抗曲线和组织学特征之间也存在相关性。阻抗值在预测预测和实际针轨迹之间的变化、确定正常结构与探针尖端的接近度以及检测囊性结构内的定位方面也是有用的。
In this study, the relationships among computed tomography (CT) characteristics, intraoperative impedance monitoring, and histologic features were evaluated in 46 patients. Preoperatively, the CT characteristics of the proposed trajectory of the biopsy needle were determined and correlated intraoperatively with the impedance profile as obtained with a monopolar electrode. An excellent correlation between high-resolution CT density characteristics and impedance patterns was seen (r = 0.897). A correlation was also seen between CT patterns/impedance profiles and histologic features. Impedance values were also useful in predicting variation between predicted and actual needle trajectory, determining the proximity of normal structures to the probe tip and detecting Ioculations within cystic structures.