| Patent Number |
Title Of Patent |
Date Issued |
| 5140981 |
End-tidal gas detection |
August 25, 1992 |
| A patient breathing through a mask (34) receives breathing air from a breathing air system (A). A xenon gas supply (12) selectively supplies xenon or other enhancement gases into the breathing air. During each exhalation portion of a respiratory cycle, a portion of the exhaled gas pa |
| 5024230 |
Dual flow/lambda display for xenon enhanced tomography |
June 18, 1991 |
| A patient is disposed within a scan circle or examination region (62) of a CT scanner (B). As the patient starts breathing air from a xenon gas supply (A), a flow image and a lambda image are created and stored in a flow image memory (90) and a lambda image memory (92). The flow and lamb |
| 4930510 |
Parameterization for CT blood flow mapping with xenon gas enhancement |
June 5, 1990 |
| A xenon gas system (B) introduces xenon gas into a patient's blood. The xenon concentration in the patient's blood is monitored (26) periodically as the concentration builds toward a saturation level (32). The absorption data is divided into at least three curved segments (32, 34, 36) ea |
| 4793357 |
CT blood flow mapping with xenon gas enhancement |
December 27, 1988 |
| A xenon gas system (B) introduces xenon gas into a patients's blood. The xenon gas concentration in the patient's blood is monitored and the characteristics of the patient's blood absorption curve are determined (34). A look-up table array (60) includes a plurality of look-up tables, |
