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Transposition of great arteries

Federico Badano

Article Published: Mar 6, 2016
FB - Diagnóstico por Imágenes, Gualeguaychú, Argentina.


Case report

A 27 year-old woman (G2-P1) with unremarkable history. She came to our unit at 23 weeks of gestational age for an anomaly scan.
Our ultrasound examination revealed a transposition of great arteries without other abnormalities.
The diagnosis was confirmed postnatally and the baby is waiting for her first corrective surgery.

Images 1 and 2: 2D images of the outflow tracts showing the aorta arising from the right ventricle and pulmonary artery from the left ventricle (image 1); 3VV showing only two vessels, the aorta and superior cava vein (image2).

Image 1
Image 2



Images 3, 4, 5, and 6: 2D images of the normal 4-chamber (in this case without ventricular septal defect), outflow tracts showing parallel arrangement of the aorta and pulmonary arterya with aorta arising from the right ventricle and pulmonary artery from the left ventricle. The pulmonary artery arise from the left ventricle at a lower level of the 3VV (image 3).

RV: right ventricle; LV: left ventricle; Ao: aorta; PA: pulmonary artery; MPA: main pulmonary artery; RPA: right pulmonary artery; LPA: left pulmonary artery.
Image 3
Image 4
Image 5
Image 6



Images 7 and 8: coronal 2D images showing the aorta arising from the right ventricle and pulmonary artery from the left ventricle.

Image 7
Image 8



Videos 1-10: 2D and color doppler images of the fetal heart in coronal, parasagital and axial planes showing abnormal origin and parallel arrangement of the aorta and pulmonary artery compatible with transposition of great arteries.


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