Clinical Limitations to Use of Xenon for Measurement of Myocardial Blood Flow

Baltaxe, Harold A.; Formanek, Gustave; Loken, Merle K.; Amplatz, Kurt; Bostrom, Stephen E.

doi:10.1097/00004424-196909000-00005

Cited by 12 publications

(2 citation statements)

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“…Using the Xenon 133 washout technique, Kloster et al found an increase in coronary flow which persisted as long as 7 min [8]. Limitations of this technique for measuring rapid changes in coronary flow are known [14,15]. Necessity of a steady state for accurate measurements with the Xenon 133 technique raises questions relative to its ability to quantify and evaluate temporal changes occurring after contrast injection.…”

Section: Discussionmentioning

confidence: 99%

Effects of selective injection of contrast media on coronary artery diameter

Hill

Feldman

Conti

et al. 1982

Cathet. Cardiovasc. Diagn.

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The purpose of this study was to quantify the effect of Renografin-76 on epicardial coronary artery diameters, during selective coronary angiography. Using 105 mm-photospot angiograms taken at 0, 1, and 5 min, 99 coronary segments from ten patients were measured. Comparing the angiograms at 1 and 5 min to the control angiograms, a 7 +/- 7% and 6 +/- 7% (both p = NS) change in diameter respectively was noted. Comparing the 1 and 5 min angiograms, there was no significant change (-1 +/- 7%). Measurements were found to be very reproducible. This study shows that there is a trend toward dilation of the coronary arteries during selective coronary angiography, but this did not reach statistical significance and probably is not clinically important.

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Section: Discussionmentioning

confidence: 99%

Effects of selective injection of contrast media on coronary artery diameter

Hill

Feldman

Conti

et al. 1982

Cathet. Cardiovasc. Diagn.

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“…Andererseits werden in vielen Ffillen Befunde einander gegenfibergestel!t, die mit nicht direkt vergleichbaren Methoden gewonnen wurden. Mit steigendem Alter nimmt der Koronarwiderstand leicht zu [4]; das Ausmal3 einer ,,altersentsprechenden" Einschrfinkung der Koronarreserve ist bisher unbekannt. 65,76,135,137,154,193,199,210].…”

Section: Bisher Vorliegende Ergebnisseunclassified

Wert und Grenzen klinischer Koronardurchblutungsmessungen

Tauchert¹

1975

Klin Wochenschr

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Attempts to measure coronary blood flow in man have made considerable progress during the last 25 years. The major techniques are based on the direct or indirect Fick principle; coronary flow is calculated from the arterio-coronary venous difference of inert gases or from the precordial recorded disappearance curve of radioactive gases or substances. The accuracy of the techniques depends upon the properties or the indicators used and the precision of their determination. All techniques applied hitherto are intricate and unsuitable for general use. -A lot of information is obtained about coronary circulation in health and disease by coronary flow measurements in man. Further studies in this field may influence pathophysiological and clinical concepts especially concerning coronary heart disease.

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Hämodynamik und Koronardurchblutung bei der koronaren Herzkrankheit

Rutishauser¹

1971

Das Gesunde Und Kranke Herz Bei Körperlicher Belastung

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Clinical Limitations to Use of Xenon for Measurement of Myocardial Blood Flow

Cited by 12 publications

References 0 publications

Effects of selective injection of contrast media on coronary artery diameter

Effects of selective injection of contrast media on coronary artery diameter

Wert und Grenzen klinischer Koronardurchblutungsmessungen

Hämodynamik und Koronardurchblutung bei der koronaren Herzkrankheit

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