The catheter wall simulating thrombus formation seen on pullout angiograms: an experimental study

Radiology. 1977 Jun;123(3):601-4. doi: 10.1148/123.3.601.


The authors investigated the nature of a radiolucent line that was seen paralleling the radiopaque catheter wall on more than 70% of 176 pullout angiograms. Although this line may indicate a thrombus sleeve, accumulation of thrombus was rarely seen at the puncture site. A series of experiments demonstrated clearly that (a) an identical line could be reproduced in a bloodless model; (b) the width varied directly with the thickness of the catheter wall and appeared irregular in contour with 6.5, 7, and 8 French catheters: and (c) this line represented the outer third of the catheter wall.

MeSH terms

  • Angiography
  • Catheterization*
  • Diagnosis, Differential
  • Humans
  • Thrombosis / diagnostic imaging*