DSAによる頭頸部領域の血行動態解析法 : データ取得時の誤差要因

概要

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Several problems in acquring data from a hemodynamic analysis of the cervicocerebral region with the digital subtraction angiography (DSA) system was investigated. More accurate data were obtained in patients' movement setting the ROI background near the vessel of interest. The relationship between the concentration of the contrast medium and the DSA number were at a concentration of 1%, the acquired data of the DSA number were more dispersed with a concentration of more than 40%, they were closely resembled. It should be required that the hemodynamic analysis be performed within the limits of the existance of linearity between the concentration of the contrast medium and the DSA number. The suitable concentration, total medium volume and tube voltage were selected for higher sensitivity in the DSA number at a lower tube voltage and the size of the image intensifier of more less distortion should be selected during the hemodynamic study.
公益社団法人日本放射線技術学会の論文
1988-10-01