Injection Characteristics and Downstream Contrast Material Distribution of Flush Aortography Catheters: In Vitro Study

Jens Froelich, Klemens H. Barth, Robert J. Lutz, Steven V. Lossef, David Lindisch

Research output: Contribution to journalArticlepeer-review

Abstract

Performance of 11 commercially available 4- and 5-F aortic flush catheters was evaluated with respect to the extent of upstream injection, catheter motion, and downstream homogeneity of a 10-, 15-, and 20-mL/sec bolus of 76% meglumine sodium diatrizoate at room temperature. Tests were made in a pulsatile aortic flow model containing circulating fluid isoviscous to blood. The injection process was recorded on videotape. Homogeneity of the contrast material bolus was determined spectrophotometrically from samples collected from the center and each of the four quadrants of the vessel lumen. Upstream contrast material injection between 1.5 and 7 cm in length emerged from all catheters; it was lowest with one of the “tennis racket” designs from one and a new spiral end-loop design (Halo) from another manufacturer. All catheters, except the most rigid and largest-caliber catheter (5.8 F) showed considerable shaft motion at the higher injection rates. Downstream contrast material mixing homogeneity was always best at the highest injection rate but altogether was better for the Halo catheter than for any other catheter tested. It is concluded that all tested 4- and 5-F aortic flush catheters show some undesirable features, but certain design modifications improve performance and comparative testing is helpful to distinguish such features.

Original languageEnglish (US)
Pages (from-to)713-718
Number of pages6
JournalJournal of Vascular and Interventional Radiology
Volume3
Issue number4
DOIs
StatePublished - 1992

Keywords

  • Angiography, technology, 89.1241
  • Catheters and catheterization, technology

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging
  • Cardiology and Cardiovascular Medicine

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