Congenitally corrected transposition of the great arteries

• Spine to maternal right side (fetal lie is breech from previous clip)
• The cardiac apex points leftward (levocardia)
• Left sided stomach (starred structure) 
• The cardiac apex points leftward (levocardia)

Congenitally corrected transposition of the great arteries (ccTGA)

• Left sided AV valve appears more apically displaced consistent with a left sided tricuspid valve
• Left sided modertor band noted consistent with a right ventricle
• Right sided AV valve appears septophobic consistent with a right sided mitral valve
• These findings are consistent with ventricular inversion (atrioventricular discordance)

Congenitally corrected transposition of the great arteries (ccTGA)

• Left sided AV valve appears more apically displaced and septophilic consistent with a left sided tricuspid valve
• Right sided AV valve appears septophobic consistent with a right sided mitral valve
• These findings are consistent with ventricular inversion (atrioventricular discordance)

Congenitally corrected transposition of the great arteries (ccTGA)

• The pulmonary artery arises from the right-sided left ventricle
• The aorta arises from the left-sided right ventricle 
• The aorta is anterior and leftward
• There is atrioventricular and ventriculoarterial discordance
• Findings consistent with ventricular inversion with l-TGA

Congenitally corrected transposition of the great arteries (ccTGA)

• Color compare view demonstrating unobstructed flow from the aorta and pulmonary artery
• No evidence of pulmonary or aortic stenosis
• The great arteries appear parallel 
• The pulmonary artery arises from the right-sided left ventricle
• The aorta arises from the left-sided right ventricle 
• The aorta is anterior and leftward
• There is atrioventricular and ventriculoarterial discordance
• Findings consistent with ventricular inversion with l-TGA

Congenitally corrected transposition of the great arteries (ccTGA)

• Color compare clip demonstrating one right and one left pulmonary vein returning normally to the left atrium
• Patent foramen ovale with right to left shunting
• There is a left-sided tricuspid valve and a right-sided mitral valve
• Atrioventricular discordance
• Findings consistent with ventricular inversion

Congenitally corrected transposition of the great arteries (ccTGA)

• The pulmonary artery arises from the right-sided left ventricle
• The aorta arises from the left-sided right ventricle 
• The great arteries appear parallel with the aorta anterior and leftward
• Normal appearing fetal aortic arch without hypoplasia
• Normal appearing ductal arch

Congenitally corrected transposition of the great arteries (ccTGA)

• The pulmonary artery arises from the right-sided left ventricle
• The aorta arises from the left-sided right ventricle 
• The great arteries appear parallel with the aorta anterior and leftward
• Normal appearing fetal aortic arch with normal color Doppler flow pattern
• Normal appearing ductal arch