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Related Experiment Videos

Aortic intimal tears: detection with spiral computed tomography.

Leslie E Quint1, Joel F Platt, Seema S Sonnad

  • 1Department of Radiology, University of Michigan Health Center, Ann Arbor, Michigan 48109-0030, USA. lequint@umich.edu

Journal of Endovascular Therapy : an Official Journal of the International Society of Endovascular Specialists
|August 23, 2003
PubMed
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Spiral computed tomography (CT) identified aortic intimal tears in all patients with aortic dissection. Most tears were small and easily visualized, with common locations in the descending aorta.

Area of Science:

  • Radiology
  • Cardiovascular Imaging
  • Aortic Diseases

Background:

  • Aortic dissection is a life-threatening condition involving a tear in the aorta's inner layer.
  • Identifying the intimal tear is crucial for understanding dissection extent and guiding treatment.
  • Spiral computed tomography (CT) is a key imaging modality for diagnosing aortic dissection.

Purpose of the Study:

  • To determine the frequency, locations, and sizes of aortic intimal tears.
  • To evaluate the utility of spiral CT in detecting these tears in patients with aortic dissection and a patent false lumen.

Main Methods:

  • Retrospective analysis of CT scans from 52 patients with unoperated aortic dissection.
  • Evaluation of single-detector and multidetector CT studies.

Related Experiment Videos

  • Systematic recording and comparison of tear number, location, and size across different dissection types and chronicity.

    • Main Results:

    • A total of 129 aortic intimal tears were identified (mean 2.48 per patient).
    • The descending aorta (44%) and juxtarenal region (20%) were the most frequent tear locations.
    • Most tears (68%) measured ≤1 cm, though thoracic tears were larger than abdominal tears.

    Conclusions:

    • Spiral CT reliably detects one or more aortic intimal tears in all patients with aortic dissection and a patent false lumen.
    • Despite most tears being small, they are generally well-visualized with spiral CT.
    • No significant differences in tear characteristics were found between acute/chronic or Type A/B dissections, or between detector types.