先天性主动脉弓畸形 SS
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先天性主动脉弓畸形1 ppt课件
Congenital Aortic Arch Anomalies in Broad Definition
• Obstructive congenital aortic arch abnormalities , COA, IAA
• Non-obstructive congenital aortic arch abnormalities such as double aortic arch and right aortic arch with aberrant left subclavian artery and so on
• CE-MRA did not make accurate diagnoses
for 2 COA, 1 IAA
Non-obstructive congenital aortic
arch abnormalities
• double aortic arch 2, right aortic arch with aberrant left subclavian artery 12, right aortic arch with isolated left subclavian artery 2, left aortic arch with aberrant right subclavian artery 13, fifth aortic arch 3, cervical aortic arch 2, right aortic arch with left descending aorta 4, left aortic arch with right descending aorta 1, right aortic arch with aberrant left innominate artery 1, left aortic arch with isolated right subclavian artery 1 , right aortic arch with isolated left innominate artery 1.
• CE-MRA was performed in every case. CE-MRA is the most helpful sequence
• Total examination time is less than 30 min.
343 cases Congenital Aortic Arch Anomalies MRA diagnosis
• ECG gated T1-weighted spin-echo sequence was performed in every case
• Gradient-echo cine sequence was performed in every case
• Phase-contrast cine sequence was performed in some cases
• PDA （patent ductus arteriosus) 139 • COA（coarctation） 135, IAA （interruption of
aortic arch） 27 • Non-obstructive congenital aortic arch abnormalities
Fifth aortic arch
• 216 male and 127 female, with an age range of 5 days to 11 years ( mean 2.4 years)
• All examinations were performed with GE Signa 1.5T MR unit
MR Examination Technique
Non-obstructive congenital aortiቤተ መጻሕፍቲ ባይዱ arch abnormalities
• Edwards scheme is very helpful for understanding and diagnoses of non- obstructive congenital aortic arch anomalies. Regression in an abnormal site in the fourth aortic arch system is the reason of most non- obstructive congenital aortic arch anomalies.
42 • Diagnostic accuracy : CE-MRA 96.8% (302/312)
echocardiography 87.2% (272/312)
Obstructive Congenital Aortic Arch Abnormalities
• 135 COA , 83 were without PDA and 52 were
with PDA
• 27 IAA , 18 were type A IAA and 9 were type B
IAA.
Obstructive Congenital Aortic Arch Abnormalities
• In some very severe COA and IAA, CE-
MRA even can give more information than X-ray angiocardiography.
• Congenital aortic arch shunt abnormality , PDA
343 cases Congenital Aortic Arch Anomalies MRA diagnosis
• All examinations were performed between April 1999 and December 2003.
Congenital Aortic Arch Anomalies in Broad Definition
• Obstructive congenital aortic arch abnormalities , COA, IAA
• Non-obstructive congenital aortic arch abnormalities such as double aortic arch and right aortic arch with aberrant left subclavian artery and so on
• CE-MRA did not make accurate diagnoses
for 2 COA, 1 IAA
Non-obstructive congenital aortic
arch abnormalities
• double aortic arch 2, right aortic arch with aberrant left subclavian artery 12, right aortic arch with isolated left subclavian artery 2, left aortic arch with aberrant right subclavian artery 13, fifth aortic arch 3, cervical aortic arch 2, right aortic arch with left descending aorta 4, left aortic arch with right descending aorta 1, right aortic arch with aberrant left innominate artery 1, left aortic arch with isolated right subclavian artery 1 , right aortic arch with isolated left innominate artery 1.
• CE-MRA was performed in every case. CE-MRA is the most helpful sequence
• Total examination time is less than 30 min.
343 cases Congenital Aortic Arch Anomalies MRA diagnosis
• ECG gated T1-weighted spin-echo sequence was performed in every case
• Gradient-echo cine sequence was performed in every case
• Phase-contrast cine sequence was performed in some cases
• PDA （patent ductus arteriosus) 139 • COA（coarctation） 135, IAA （interruption of
aortic arch） 27 • Non-obstructive congenital aortic arch abnormalities
Fifth aortic arch
• 216 male and 127 female, with an age range of 5 days to 11 years ( mean 2.4 years)
• All examinations were performed with GE Signa 1.5T MR unit
MR Examination Technique
Non-obstructive congenital aortiቤተ መጻሕፍቲ ባይዱ arch abnormalities
• Edwards scheme is very helpful for understanding and diagnoses of non- obstructive congenital aortic arch anomalies. Regression in an abnormal site in the fourth aortic arch system is the reason of most non- obstructive congenital aortic arch anomalies.
42 • Diagnostic accuracy : CE-MRA 96.8% (302/312)
echocardiography 87.2% (272/312)
Obstructive Congenital Aortic Arch Abnormalities
• 135 COA , 83 were without PDA and 52 were
with PDA
• 27 IAA , 18 were type A IAA and 9 were type B
IAA.
Obstructive Congenital Aortic Arch Abnormalities
• In some very severe COA and IAA, CE-
MRA even can give more information than X-ray angiocardiography.
• Congenital aortic arch shunt abnormality , PDA
343 cases Congenital Aortic Arch Anomalies MRA diagnosis
• All examinations were performed between April 1999 and December 2003.