Abstract
Transposition of great arteries (TGA) is a congenital heart abnormality in which the aorta arises from the right ventricle and the main pulmonary artery arises from the left ventricle. In complete TGA (CTGA), the morphological right atrium is connected to the morphological right ventricle which in turn is connected to the aorta. Similarly, the morphological left atrium is connected to the morphological left ventricle which in turn is connected to the pulmonary artery. Whereas in congenitally corrected TGA (CCTGA) the ventricles have switched atrial relationships.
This condition is defined by the connections rather than the spatial relationship of great arteries. Identification of the correct morphology is essential for the proper planning of surgery for which both CT scan and MRI are helpful. The complications associated with the surgery done for this condition are better studied by CT/MRI.
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CMR in a 3 year old child with D-TGA, VSD-closure, post arterial switch, (Lecompte maneuver) having diffuse LPA stenosis and narrowing of the aorta (MP4 2001 kb)
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CMR in 8 years old boy. A case of CTGA with Peri membranous VSD, Regressed LV. S/P: Sennings + VSD closure (PAGES 141 kb)
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CMR in 17 years old male. S L L, CCTGA, intact ventricular septum, regressed thin walled LV (PDF 682 kb)
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CMR in 3 years old girl. I, D, D, CCTGA, large conoventricular VSD, severe PS, bilateral SVC. Status post bilateral BDGS (PDF 1269 kb)
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CMR in 6 years old girl. Crisscross heart with CTGA. S/P BDGS + atrial septectomy (PDF 23 kb)
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CCT in 5 years old boy, a case of CTGA, Dual LAD with malignant course of left circumflex artery, Membranous VSD with large ASD. Status post BDGS (PDF 71 kb)
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CMR in a case of SDD, DTGA, Intact ventricular septum, and LVOT obstruction. S/P Sennings, BDGS with LVOT resection (PDF 20 kb)
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CMR in 19 years old male. L-TGA, intact ventricular septum, intact atrial septum, severe subpulmonic stenosis. Status post LV-to-PA conduit. Diffuse stenosis of conduit (PDF 2278 kb)
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Pre and post operative CMR in 16 years old girl. S L L, CCTGA, conoventricular VSD, duct dependent pulmonary atresia. Underwent double switch operation (Sennings + Rastelli) (PDF 433 kb)
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CMR in 13 years old boy. d-TGA, VSD, PS. Status post Nikaidoh procedure +VSD closure + homograft reconstruction of RVOT. Residual VSD, severe tricuspid regurgitation with hugely dilated RA (PDF 54 kb)
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Kapilamoorthy, T.R., Rajeshkannan, R. (2021). Pre- and Postoperative Imaging in Transposition of Great Arteries. In: Rajeshkannan, R., Raj, V., Viswamitra, S. (eds) CT and MRI in Congenital Heart Diseases. Springer, Singapore. https://doi.org/10.1007/978-981-15-6755-1_16
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DOI: https://doi.org/10.1007/978-981-15-6755-1_16
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