Automatic end-tidal gas sampling system for non-invasive rCBF measurements. | Zendy

H M Shapiro | Zendy; J E Inacker | Zendy; Walter D. Obrist | Zendy

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Automatic end-tidal gas sampling system for non-invasive rCBF measurements.

Author(s) -

H M Shapiro,

J E Inacker,

Walter D. Obrist

Publication year - 1977

Publication title -

stroke

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 3.397

H-Index - 319

eISSN - 1524-4628

pISSN - 0039-2499

DOI - 10.1161/01.str.8.4.437

Subject(s) - medicine , expiration , sampling (signal processing) , cerebral blood flow , breathing , anesthesia , arterial blood , blood sampling , blood flow , biomedical engineering , nuclear medicine , cardiology , respiratory system , filter (signal processing) , computer science , computer vision

Non-invasive measurements of regional cerebral blood flow (133Xe inhalation or IV injection) require knowledge of the arterial 133Xe concentrations, which is usually estimated from the end-tidal expiration. An automated sampling system is described for measurement of end-tidal 133Xe concentration that can be used in both spontaneously breathing and mechanically ventilated patients. A comparison is made between the automatic sampling system and manual measurements performed on a continuous gas sample.

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