| タイトル | Pulmonary artery location during microgravity activity: Potential impact for chest-mounted Doppler during space travel |
| 本文（外部サイト） | http://hdl.handle.net/2060/19840023865 |
| 著者（英） | Horrigan, D. J., Jr.; Hadley, A. T., III; Conkin, J.; Waligora, J. M. |
| 著者所属（英） | NASA Johnson Space Center |
| 発行日 | 1984-08-01 |
| 言語 | eng |
| 内容記述 | Doppler, or ultrasonic, monitoring for pain manifestations of decompression sickness (the bends) is accomplished by placing a sensor on the chest over the pulmonary artery and listening for bubbles. Difficulties have arisen because the technician notes that the pulmonary artery seems to move with subject movement in a one-g field and because the sensor output is influenced by only slight degrees of sensor movement. This study used two subjects and mapped the position of the pulmonary artery in one-g, microgravity, and two-g environments using ultrasound. The results showed that the pulmonary artery is fixed in location in microgravity and not affected by subject position change. The optimal position corresponded to where the Doppler signal is best heard with the subject in a supine position in a one-g environment. The impact of this result is that a proposed multiple sensor array on the chest proposed for microgravity use may not be necessary to monitor an astronaut during extravehicular activities. Instead, a single sensor of approximately 1 inch diameter and mounted in the position described above may suffice. |
| NASA分類 | AEROSPACE MEDICINE |
| レポートNO | 84N31935
NAS 1.15:58262
S-538
NASA-TM-58262 |
| 権利 | No Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/158611 |
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