Tetralogy of Fallot. A Possible Etiology for Narrowing of the Right Pulmonary Artery

Mervyn D. Cohen, Tiffanie Johnson, Samuel G. Jennings

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Rationale and Objectives: Patients with tetralogy of Fallot have right ventricular outflow and pulmonary valve stenosis. They may also have more distal peripheral pulmonary artery stenoses. Peripheral stenosis is believed to be part of the spectrum of the genetic manifestation of tetralogy. Our hypothesis was that narrowing of the right pulmonary artery may be due to compression from the adjacent dilated ascending aorta. Materials and Methods: We identified 27 patients with tetralogy of Fallot who underwent magnetic resonance imaging scanning postoperatively, most often for evaluation of pulmonary valve stenosis and regurgitation. On the axial image at the level of the right pulmonary artery, we measured the transverse diameters of the ascending and descending aorta, and the minimum and maximum right pulmonary artery diameters. Results: There was a significant correlation between the ratios of the ascending:descending aorta diameters and the maximum:minimum right pulmonary artery diameters. Thus, increasing ascending aorta size is associated with decreasing size of the adjacent right pulmonary artery. Conclusions: In our patient population with tetralogy of Fallot, right pulmonary artery narrowing is at least partly because of compression from the adjacent enlarged ascending aorta.

Original languageEnglish
Pages (from-to)499-501
Number of pages3
JournalAcademic Radiology
Volume16
Issue number4
DOIs
StatePublished - Apr 2009

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Tetralogy of Fallot
Pulmonary Artery
Aorta
Pulmonary Valve Stenosis
Thoracic Aorta
Pulmonary Valve Insufficiency
Pathologic Constriction
Magnetic Resonance Imaging
Population

Keywords

  • pulmonary artery stenosis
  • Tetralogy

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging

Cite this

Tetralogy of Fallot. A Possible Etiology for Narrowing of the Right Pulmonary Artery. / Cohen, Mervyn D.; Johnson, Tiffanie; Jennings, Samuel G.

In: Academic Radiology, Vol. 16, No. 4, 04.2009, p. 499-501.

Research output: Contribution to journalArticle

Cohen, Mervyn D. ; Johnson, Tiffanie ; Jennings, Samuel G. / Tetralogy of Fallot. A Possible Etiology for Narrowing of the Right Pulmonary Artery. In: Academic Radiology. 2009 ; Vol. 16, No. 4. pp. 499-501.
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