Skip to main content

Modifying peripheral IV catheters with side holes and side slits results in favorable changes in fluid dynamic properties during the injection of iodinated contrast material.

Publication ,  Journal Article
Weber, PW; Coursey, CA; Howle, LE; Nelson, RC; Nichols, EB; Schindera, ST
Published in: AJR Am J Roentgenol
October 2009

OBJECTIVE: The purpose of this study was to compare a standard peripheral end-hole angiocatheter with those modified with side holes or side slits using experimental optical techniques to qualitatively compare the contrast material exit jets and using numeric techniques to provide flow visualization and quantitative comparisons. MATERIALS AND METHODS: A Schlieren imaging system was used to visualize the angiocatheter exit jet fluid dynamics at two different flow rates. Catheters were modified by drilling through-and-through side holes or by cutting slits into the catheters. A commercial computational fluid dynamics package was used to calculate numeric results for various vessel diameters and catheter orientations. RESULTS: Experimental images showed that modifying standard peripheral IV angiocatheters with side holes or side slits qualitatively changed the overall flow field and caused the exiting jet to become less well defined. Numeric calculations showed that the addition of side holes or slits resulted in a 9-30% reduction of the velocity of contrast material exiting the end hole of the angiocatheter. With the catheter tip directed obliquely to the wall, the maximum wall shear stress was always highest for the unmodified catheter and was always lowest for the four-side-slit catheter. CONCLUSION: Modified angiocatheters may have the potential to reduce extravasation events in patients by reducing vessel wall shear stress.

Duke Scholars

Altmetric Attention Stats
Dimensions Citation Stats

Published In

AJR Am J Roentgenol

DOI

EISSN

1546-3141

Publication Date

October 2009

Volume

193

Issue

4

Start / End Page

970 / 977

Location

United States

Related Subject Headings

  • Viscosity
  • Sensitivity and Specificity
  • Reproducibility of Results
  • Nuclear Medicine & Medical Imaging
  • Microfluidics
  • Iodine
  • Injections, Intravenous
  • Equipment Failure Analysis
  • Equipment Design
  • Contrast Media
 

Citation

APA
Chicago
ICMJE
MLA
NLM
Weber, P. W., Coursey, C. A., Howle, L. E., Nelson, R. C., Nichols, E. B., & Schindera, S. T. (2009). Modifying peripheral IV catheters with side holes and side slits results in favorable changes in fluid dynamic properties during the injection of iodinated contrast material. AJR Am J Roentgenol, 193(4), 970–977. https://doi.org/10.2214/AJR.09.2521
Weber, Paul W., Courtney A. Coursey, Laurens E. Howle, Rendon C. Nelson, Eli B. Nichols, and Sebastian T. Schindera. “Modifying peripheral IV catheters with side holes and side slits results in favorable changes in fluid dynamic properties during the injection of iodinated contrast material.AJR Am J Roentgenol 193, no. 4 (October 2009): 970–77. https://doi.org/10.2214/AJR.09.2521.
Weber, Paul W., et al. “Modifying peripheral IV catheters with side holes and side slits results in favorable changes in fluid dynamic properties during the injection of iodinated contrast material.AJR Am J Roentgenol, vol. 193, no. 4, Oct. 2009, pp. 970–77. Pubmed, doi:10.2214/AJR.09.2521.
Weber PW, Coursey CA, Howle LE, Nelson RC, Nichols EB, Schindera ST. Modifying peripheral IV catheters with side holes and side slits results in favorable changes in fluid dynamic properties during the injection of iodinated contrast material. AJR Am J Roentgenol. 2009 Oct;193(4):970–977.

Published In

AJR Am J Roentgenol

DOI

EISSN

1546-3141

Publication Date

October 2009

Volume

193

Issue

4

Start / End Page

970 / 977

Location

United States

Related Subject Headings

  • Viscosity
  • Sensitivity and Specificity
  • Reproducibility of Results
  • Nuclear Medicine & Medical Imaging
  • Microfluidics
  • Iodine
  • Injections, Intravenous
  • Equipment Failure Analysis
  • Equipment Design
  • Contrast Media