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Chacko BR, Chiramel GK, Vimala LR, et al. Spectrum of pulmonary valve morphology and its relationship to pulmonary trunk in tetralogy of Fallot. Indian J Radiol Imaging. 2017;27(1):65-69doi: 10.4103/0971-3026.202959.
Chacko, B. R., Chiramel, G. K., Vimala, L. R., Manuel, D. A., Joseph, E., & Reka, K. (2017). Spectrum of pulmonary valve morphology and its relationship to pulmonary trunk in tetralogy of Fallot. The Indian journal of radiology & imaging, 27(1), 65-69. https://doi.org/10.4103/0971-3026.202959
Chacko, Binita R, et al. "Spectrum of pulmonary valve morphology and its relationship to pulmonary trunk in tetralogy of Fallot." The Indian journal of radiology & imaging vol. 27,1 (2017): 65-69. doi: https://doi.org/10.4103/0971-3026.202959
Chacko BR, Chiramel GK, Vimala LR, Manuel DA, Joseph E, Reka K. Spectrum of pulmonary valve morphology and its relationship to pulmonary trunk in tetralogy of Fallot. Indian J Radiol Imaging. 2017 Jan-Mar;27(1):65-69. doi: 10.4103/0971-3026.202959. PMID: 28515589; PMCID: PMC5385780.
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Indian J Radiol Imaging. 2017 Jan-Mar;27(1):65-69. doi: 10.4103/0971-3026.202959.

Spectrum of pulmonary valve morphology and its relationship to pulmonary trunk in tetralogy of Fallot.

The Indian journal of radiology & imaging

Binita R Chacko, George K Chiramel, Leena R Vimala, Devi A Manuel, Elizabeth Joseph, K Reka

Affiliations

  1. Department of Radiology, Christian Medical College, Vellore, Tamil Nadu, India.
  2. Department of Cardiology, Christian Medical College, Vellore, Tamil Nadu, India.
  3. Department of Biostatistics, Christian Medical College, Vellore, Tamil Nadu, India.

PMID: 28515589 PMCID: PMC5385780 DOI: 10.4103/0971-3026.202959

Abstract

BACKGROUND: Tetralogy of Fallot (TOF) is a complex congenital heart disease with anatomic variations. Although the pulmonary valve in TOF is abnormal, it has not been studied well, especially on newer imaging modalities such as multidetector computed tomography (CT), which gives excellent anatomic detail.

AIMS: The aim of this study was to assess the morphology of pulmonary valve in TOF on CT and evaluate its association with the degree of hypoplasia of infundibulum and pulmonary trunk.

MATERIALS AND METHODS: The cardiac CT scans of 30 patients with TOF were reviewed to evaluate the morphology of the pulmonary valve, infundibulum, and pulmonary arteries. Fisher's exact test was performed to examine the association between pulmonary valve morphology and degree of hypoplasia of the infundibulum and pulmonary trunk.

RESULTS: 16.7% of patients with TOF had pulmonary atresia. The prevalence of tricuspid, bicuspid, and absent valves were 10%, 53.3% and 6.7%, respectively. In another 13.3% of patients, although valve tissue was present, exact morphology could not be determined on CT. The commissures of 62.5% of the bicuspid valves were at 12 o'clock and 6 o'clock or slightly off the midline. There was statistically significant association between valve morphology and degree of infundibular hypoplasia (

CONCLUSION: Morphological abnormality of the pulmonary valve is common in TOF. The most common type of pulmonary valve in TOF patients is bicuspid valve with commissures at 12 o'clock and 6 o'clock or slightly off the midline. Fewer cusps of the pulmonary valve are associated with a more severe degree of pulmonary artery hypoplasia.

Keywords: Artery; hypoplasia; pulmonary; tetralogy of Fallot; valve

Conflict of interest statement

There are no conflicts of interest.

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