Journal of Vascular Surgery
Volume 46, Issue 5 , Pages 891-897 , November 2007

Dynamic geometry and wall thickness of the aortic neck of abdominal aortic aneurysms with intravascular ultrasonography

Presented at the Thirty-First Annual Meeting of the Southern Association for Vascular Surgery, Puerto Rico, Jan 18-21, 2007.

  • Frank R. Arko, MD

      Affiliations

    • Divisions of Vascular and Endovascular Surgery, University of Texas Southwestern Medical Center, Dallas, Tex
    • Corresponding Author InformationReprint requests: Frank R. Arko, MD, Chief, Endovascular Surgery, Department of Surgery, University of Texas Southwestern Medical Center, 5909 Harry Hines Blvd, Dallas, TX 75903.
    • ,
  • Erin H. Murphy, MD

      Affiliations

    • Divisions of Vascular and Endovascular Surgery, University of Texas Southwestern Medical Center, Dallas, Tex
    • ,
  • Chad M. Davis III, BS

      Affiliations

    • Divisions of Vascular and Endovascular Surgery, University of Texas Southwestern Medical Center, Dallas, Tex
    • ,
  • Eric D. Johnson, MS

      Affiliations

    • Crux Biomedical Engineering, Portola Valley, Calif
    • ,
  • Stephen T. Smith, MD

      Affiliations

    • Divisions of Vascular and Endovascular Surgery, University of Texas Southwestern Medical Center, Dallas, Tex
    • ,
  • Christopher K. Zarins, MD

      Affiliations

    • Stanford University Medical Center, Palo Alto, Calif.

Received 25 January 2007 ,Accepted 11 June 2007.

  • Image Result

    Luminal changes of the aortic circumference through a single cardiac cycle demonstrate the anisotropic movement of the aortic neck of an abdominal aortic aneurysm. Notice the significantly greater mov

    Luminal changes of the aortic circumference through a single cardiac cycle demonstrate the anisotropic movement of the aortic neck of an abdominal aortic aneurysm. Notice the significantly greater movement in the anteroposterior (AP) axis as compared with the lateral axis as labeled.

  • Image Result
    A, Original image of intravascular ultrasonography (IVUS) captured with the Digital Imaging and Communications in Medicine viewer. During IVUS, the gain was set at 40 and then saved as a bitmap image.

    A, Original image of intravascular ultrasonography (IVUS) captured with the Digital Imaging and Communications in Medicine viewer. During IVUS, the gain was set at 40 and then saved as a bitmap image. B, The image was then opened with Scion PCI frame grabber, and the image is then inverted. Notice in both images that the IVUS catheter is in the central lumen of the vessel. C, Thresholds are then set on the inverted image to 146 on Scion PCI frame grabber to estimate the aortic wall thickness.

 Competition of interest: none.

PII: S0741-5214(07)01049-X

doi: 10.1016/j.jvs.2007.06.030

Journal of Vascular Surgery
Volume 46, Issue 5 , Pages 891-897 , November 2007

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