| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a xenon gas feeding method and a system by which a mixed xenon gas of a specified mixing ratio can be fed to a subject without wastes. <P>SOLUTION: The mixed xenon gas which is stored in a respiration bag 12 is fed as soon as the exhalation by the subject who is wearing a respiration mask 30 is started by opening electromagnetic valves 36 and 50 and closing an electromagnetic valve 42. Thus, after air in an inhalation tube 34 and an exhalation tube 38, and a duct 39 has been discharged, the electromagnetic valve 42 is opened, and an electromagnetic valve 50 is closed to form a closed respiration circulating circuit. Thus, the mixed xenon gas is fed to the subject, and imaging by a CT device is performed. <P>COPYRIGHT: (C)2004,JPO&NCIPI</p> |
