[Flow rates of roentgen contrast media of different viscosity in 4.1 Charrière coronary catheters].
The studies presented here investigated the obtainable flows of different contrast media (Iopromide 370 mg iodine/ml, ZK 119 095 370 mg iodine/ml, ZK 139 129 370 mg iodine/ml, Iopamidol 370 mg iodine/ml, Iopromide 300 mg iodine/ml, ZK 119 095 300 mg iodine/ml, ZK 139 129 300 mg iodine/ml, Iopamidol 300 mg iodine/ml, aqua dest.) in 4.1 Charrière coronary catheters. The measurements of the flow achieved by a standardised power of 100 N show that the highest values are reached with the substance ZK 119 095 (both for 300 mg iodine/ml and 370 mg iodine/ml). On comparison of the catheter types there are no differences in the delivery rate. The x-ray contrast-media, however, are significantly different: the lowest iodine delivery rate is found for iopromide 370 with 384.5 mg iodine/s; the highest rate for the test substance ZK 119 095 with 648.9 mg iodine/s. Although contrast media with low viscosity contain considerably less iodine/ml it is possible to achieve an iodine density in coronary vessels by about 86% higher than that achieved by contrast media with 370 mg iodine/ml. Therefore, the possibility to choose a viscosity-adapted x-ray contrast-medium allows the use of very thin cardiac catheter systems without leading to a worsening of picture quality.
Jung
F
F
Abteilung für Hämostaseologie und Transfusionsmedizin Universität des Saarlandes, Homburg/Saar.
Schmitt
R M
RM
Scheller
B
B
Bach
R
R
Heidmann
D
D
Spitzer
S
S
Schieffer
H
H
D006328:Cardiac Catheterization / Q000295:instrumentation*; D003287:Contrast Media / Q000737:chemistry*; D017023:Coronary Angiography / Q000295:instrumentation*; D004334:Drug Administration Schedule; D006801:Humans; D007455:Iodine / Q000032:analysis; D009994:Osmolar Concentration; D012016:Reference Values; D012212:Rheology; D014783:Viscosity
D003287:Contrast Media; D007455:Iodine
Flussraten von Röntgenkontrastmitteln verschiedener Viskosität in 4.1-Charrière-Koronarkathetern.