| Автор | Wang, Jia-Jung |
| Автор | Wang, Ping-Wei |
| Автор | Liu, Chun-Peng |
| Автор | Lin, Shih-Kai |
| Автор | Hu, Wei-Chih |
| Автор | Kao, Tsiar |
| Дата выпуска | 2007-09-01 |
| dc.description | We tested the validity of regional impedance cardiography (RIC) for measuring changes in both cardiac output and stroke volume by comparing the values with a 2D ultrasound technique in response to the breath-hold manipulation. Among 13 subjects, changes in the maximum amplitude of the regional impedance waveform from the forearm conformed to those in stroke volume (r = 0.86, p < 0.001) and cardiac output (r = 0.76, p < 0.003) measured with the ultrasound technique in baseline and immediately after a 30 s breath-hold maneuver. We also found that the per cent change in cardiac output (r = 0.73, p < 0.005) and the per cent change in stroke volume (r = 0.84, p < 0.0003) by the echocardiography were both positively correlated with the per cent change in the peak impedance amplitude. In addition, both the change and the per cent change in the mean area under the impedance curve were consistent with those in the stroke volume, respectively. Accordingly, the regional electrical impedance waveform from lower limbs may be helpful in providing a non-invasive and continuous assessment of left ventricular output, especially during cardiac procedures. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Копирайт | 2007 IOP Publishing Ltd |
| Название | Evaluation of changes in cardiac output from the electrical impedance waveform in the forearmThis work was presented at the World Congress on Medical Physics and Biomedical Engineering 2006 (WC2006) held in Seoul, Korea from 27 August to 1 September 2006. |
| Тип | paper |
| DOI | 10.1088/0967-3334/28/9/002 |
| Electronic ISSN | 1361-6579 |
| Print ISSN | 0967-3334 |
| Журнал | Physiological Measurement |
| Том | 28 |
| Первая страница | 989 |
| Последняя страница | 999 |
| Последняя страница | 999 |
| Аффилиация | Wang, Jia-Jung; Department of Biomedical Engineering, I-Shou University, Taiwan, Republic of China |
| Аффилиация | Wang, Ping-Wei; Department of Biomedical Engineering, I-Shou University, Taiwan, Republic of China |
| Аффилиация | Liu, Chun-Peng; Department of Internal Medicine, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan, Republic of China |
| Аффилиация | Lin, Shih-Kai; Department of Internal Medicine, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan, Republic of China |
| Аффилиация | Hu, Wei-Chih; Department of Biomedical Engineering, Chung-Yuan Christian University, Chungli, Taiwan, Republic of China |
| Аффилиация | Kao, Tsiar; Institute of Biomedical Engineering, National Yanh-Ming University, Taipei, Taiwan, Republic of China |
| Выпуск | 9 |
