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Related Experiment Videos

Pulmonary artery dissection: MR findings.

E J Stern1, C Graham, G Gamsu

  • 1Department of Radiology, University of California, San Francisco 94143-0628.

Journal of Computer Assisted Tomography
|May 1, 1992
PubMed
Summary

Pulmonary artery dissection, a rare complication of pulmonary arterial hypertension, was diagnosed using cine Magnetic Resonance (MR) imaging. This technique effectively visualized the intimal flap, overcoming limitations of standard spin echo MR in this specific case.

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Area of Science:

  • Cardiovascular Imaging
  • Radiology
  • Pulmonary Hypertension

Background:

  • Pulmonary artery dissection is a rare, often fatal complication of chronic pulmonary arterial hypertension.
  • Diagnosis is typically made post-mortem, with few ante-mortem cases documented via Doppler echocardiography.

Observation:

  • A case of pulmonary artery dissection in a patient with severe pulmonary arterial hypertension was evaluated using Magnetic Resonance (MR) imaging.
  • Standard spin echo MR imaging failed to clearly delineate the dissection due to signal heterogeneity from slow blood flow.

Findings:

  • Cine MR imaging successfully identified the intimal flap and false lumen characteristic of dissection.
  • Differential signal intensity within the true and false lumens on cine MR provided clear visualization of the dissection anatomy.

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Implications:

  • Cine MR imaging offers a valuable diagnostic tool for pulmonary artery dissection, especially when conventional MR sequences are limited.
  • Improved ante-mortem diagnosis of pulmonary artery dissection can potentially alter patient management and outcomes.