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The measurement accuracy of clinically applicable methods for blood flow measurement in coronary sinus -- continuous local thermodilution (LTD), differential pressure (DP), ultrasonic Doppler (US) and the electromagnetic flow measurement method (EMF) -- was examined in 15 anaesthetized closed chest dogs with left ventricle weights between 150 and 200 g. The LTD, DP, US and the EMF were examined in each experiment in the two following arrangements. 1. In coronary sinus -- left jugular vein by-pass: This arrangement allowed four reference methods for measurement of coronary sinus blood flow (CBF). 2. In "clinical" position, without by-pass, which allowed two reference methods for CBF measurements. The results on the measurement accuracy of the LTD, DP and US are, depending on the measurement arrangement, contradictory. In the by-pass arrangement 1 there was observed a good agreement of the LTD, DP and US CBF values with the reference values. In the "clinical" position, without by-pass 2 the measurement accuracy of LTD was not sufficient for exact measurement of CBF and derived parameters. The examined velocity tip flow probes (US, DP) gave no correlation with the reference methods. US and DP are even for semiquantitative estimation of CBF unsuitable. The EMF tip flow probe was for the CBF measurement unsuitable, because of disturbance by the electrical activity of myocardium.
H Sigmund-Duchanova, and
D Baller, and
H J Bretschneider, and
H Prennschütz-Schützenau, and
K H Piesker, and
H Vennebusch, and
J Zipfel, and
G Hellige
April 1974,
Archives des maladies du coeur et des vaisseaux,
H Sigmund-Duchanova, and
D Baller, and
H J Bretschneider, and
H Prennschütz-Schützenau, and
K H Piesker, and
H Vennebusch, and
J Zipfel, and
G Hellige
August 1971,
Circulation,
H Sigmund-Duchanova, and
D Baller, and
H J Bretschneider, and
H Prennschütz-Schützenau, and
K H Piesker, and
H Vennebusch, and
J Zipfel, and
G Hellige
January 1972,
The Journal of laboratory and clinical medicine,
H Sigmund-Duchanova, and
D Baller, and
H J Bretschneider, and
H Prennschütz-Schützenau, and
K H Piesker, and
H Vennebusch, and
J Zipfel, and
G Hellige
January 1985,
Cardiovascular clinics,
H Sigmund-Duchanova, and
D Baller, and
H J Bretschneider, and
H Prennschütz-Schützenau, and
K H Piesker, and
H Vennebusch, and
J Zipfel, and
G Hellige
July 1960,
Circulation,
H Sigmund-Duchanova, and
D Baller, and
H J Bretschneider, and
H Prennschütz-Schützenau, and
K H Piesker, and
H Vennebusch, and
J Zipfel, and
G Hellige
April 1976,
Medical progress through technology,
H Sigmund-Duchanova, and
D Baller, and
H J Bretschneider, and
H Prennschütz-Schützenau, and
K H Piesker, and
H Vennebusch, and
J Zipfel, and
G Hellige
January 1974,
Seminars in nuclear medicine,
H Sigmund-Duchanova, and
D Baller, and
H J Bretschneider, and
H Prennschütz-Schützenau, and
K H Piesker, and
H Vennebusch, and
J Zipfel, and
G Hellige
January 1968,
Ceskoslovenska fysiologie,
H Sigmund-Duchanova, and
D Baller, and
H J Bretschneider, and
H Prennschütz-Schützenau, and
K H Piesker, and
H Vennebusch, and
J Zipfel, and
G Hellige
July 1948,
The Journal of clinical investigation,
H Sigmund-Duchanova, and
D Baller, and
H J Bretschneider, and
H Prennschütz-Schützenau, and
K H Piesker, and
H Vennebusch, and
J Zipfel, and
G Hellige
January 1975,
Surgical forum,
