https://scholars.lib.ntu.edu.tw/handle/123456789/562607
標題: | Reactive pulmonary artery vasoconstriction in pulmonary consolidation evaluated by color Doppler ultrasonography | 作者: | ANG YUAN PAN-CHYR YANG LI-NA LEE Wu H.-D. Kuo S.-H. KWEN-TAY LUH WEN-JONE CHEN Lin F.-Y. |
公開日期: | 2000 | 卷: | 26 | 期: | 1 | 起(迄)頁: | 49-56 | 來源出版物: | Ultrasound in Medicine and Biology | 摘要: | A total of 122 patients with pulmonary consolidation on chest radiographs underwent color Doppler ultrasonography to evaluate hemodynamic change in regional pulmonary artery in pulmonary consolidation due to various causes. The diseases underlying pulmonary consolidation included 66 simple pneumonia, 37 obstructive pneumonia, 13 tumor consolidation and 6 pulmonary infarctions. Blood flow signals in consolidation were detected by color-flow mapping. The degree of reactive vasoconstriction was evaluated from analysis of the spectral waveform of the blood flow in the segmental pulmonary artery by several vessel resistance-indicating Doppler ultrasound (US) indices, including pulsativity index (PI), resistive index (RI), and acceleration time (AT). The results showed that reactive vasoconstriction was most marked in obstructive pneumonia, followed by simple pneumonia, and least in tumor consolidation (p < 0.001, Kruskal-Wallis test and p < 0.001, Dunn's test for comparison of PI, RI and AT values between different groups of pulmonary consolidation). No flow was detected in pulmonary infarction. We conclude that color Doppler US is a useful tool for evaluating reactive vasoconstriction in pulmonary consolidation. The different degrees of reactive vasoconstriction may be helpful in exploring the possible etiology of pulmonary consolidation. Copyright (C) 2000 World Federation for Ultrasound in Medicine and Biology.A total of 122 patients with pulmonary consolidation on chest radiographs underwent color Doppler ultrasonography to evaluate hemodynamic change in regional pulmonary artery in pulmonary consolidation due to various causes. The diseases underlying pulmonary consolidation included 66 simple pneumonia, 37 obstructive pneumonia, 13 tumor consolidation and 6 pulmonary infarctions. Blood flow signals in consolidation were detected by color-flow mapping. The degree of reactive vasoconstriction was evaluated from analysis of the spectral waveform of the blood flow in the segmental pulmonary artery by several vessel resistance-indicating Doppler ultrasound (US) indices, including pulsativity index (PI), resistive index (RI), and acceleration time (AT). The results showed that reactive vasoconstriction was most marked in obstructive pneumonia, followed by simple pneumonia, and least in tumor consolidation (p<0.001, Kruskal-Wallis test and p<0.001, Dunn's test for comparison of PI, RI and AT values between different groups of pulmonary consolidation). No flow was detected in pulmonary infarction. We conclude that color Doppler US is a useful tool for evaluating reactive vasoconstriction in pulmonary consolidation. The different degrees of reactive vasoconstriction may be helpful in exploring the possible etiology of pulmonary consolidation. |
URI: | https://scholars.lib.ntu.edu.tw/handle/123456789/562607 | ISSN: | 0301-5629 | DOI: | 10.1016/S0301-5629(99)00118-0 | SDG/關鍵字: | Blood vessels; Color image processing; Doppler effect; Hemodynamics; Medical imaging; Pulmonary diseases; Pulsatile flow; Statistical tests; Color Doppler ultrasonography; Dunn's test; Kruskal-Wallis test; Pulmonary consolidation; Ultrasonic imaging; adult; aged; artery blood flow; article; clinical trial; color ultrasound flowmetry; female; human; lung infarction; lung vasoconstriction; major clinical study; male; pneumonia; priority journal; pulmonary artery; thorax radiography; ultrasound; Blood Flow Velocity; Female; Humans; Lung Diseases; Male; Middle Aged; Pulmonary Circulation; Pulsatile Flow; Statistics, Nonparametric; Ultrasonography, Doppler, Color; Vasoconstriction |
顯示於: | 醫學院附設醫院 (臺大醫院) |
在 IR 系統中的文件,除了特別指名其著作權條款之外,均受到著作權保護,並且保留所有的權利。