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Cardiac MRI Case 13

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So the next next case belongs to four different

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individuals who have four different types of

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atrial sample defects. Can you bring

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up the poll again? I'm going to put put four different cases

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here and we'll have a poll of what type of asd's.

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It's four different asd's which are being shown sinus Windows ASD

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second ASD.

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And atrioventricular defect in unroot coronary sinus.

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This is case number a we're going to go to

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all the four cases. Don't come back to case a case number

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B.

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Another form of atrial simplification. So all these four patients have different

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types of atrial sample defects shown on city

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bright blood Imaging.

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Case number c and finally case

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number D. So can we start

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probably have to take individual polls again as we did before case number

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a match what type of atrial Supply effect

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the audience thinks is

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we have the choices are sinus phenosis second and

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a Visa Canal or atrientical supplementary

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factor of coronary sinus.

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Okay. Second ome wonderful. Excellent. Excellent

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choice the diagnosis not a nature

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of ventricular sample defect and I'll tell you why don't want

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to give the answer away for for subsequent cases. This defect is

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in the is in the middle of the integral septum or

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the central part of the a of the interatrial septum in

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the center in the second number region. This is a patient with a second

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and ASD.

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Next case and Paul again, please. This is

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a neonate who presents within atrial

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simply effect. The correct answer would be one of these four.

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Okay, the correct answer is an atrioventical subtle defect excellent

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notice that the defect is large and was a distal part of

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the integral septum Associated extends into the approximal interventricular

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septum associated with the AV canal canal

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region. This is an atrial ventricular separate effect

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or a primum ASD because in the more distal

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part of the integral septum and can involve

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the interventricular septum and the atrio ventricular valves. This is an AV Canal

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defect associated with can be Associated Down syndrome.

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Hventricular sample defect.

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case number three or c

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Once again, the four choices are either of these three

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second. I'm sinus phenosis a

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resupply effect on roof chronic sinus. The correct

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answer is a sign is phenosis. Atrial Supple defect notice that

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this defect is between the SVC and the left atrium and

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associated with where the pulmonary vein comes

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into the left atrium. This this defect is

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a sinus phenosis defect it because hind the interatrial septum between

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the SVC and the left atrium and it

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can be associated with partial enormous polymer Venus Return of

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the right upload to the SVC. This is a sinus

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phenosis defect high in the integral septum the region of

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the SVC right atrium and left atrium conference.

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The last atrial sample day function is shown in this case

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in this particular example. Once again, when you have a pole it's either of

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these four the correct answer is unroof current

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science. Excellent notice the current sinus comes

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in the right atrium. And the wall of the coronary sinus between the left

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atriums and sorry it comes into the right atrium the wall

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of the coronary sinus between the left atrium and and the coronocide itself

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is deficient. So there's a left right shunt between

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the left atrium chronic sinus right atrium. So rare

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form of atrial simply fact known as a coronary sinus

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ASD, so four types of atrial Supple defects the

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coronary sinus ASD sinus venosis ASD

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Prime Ministry on atrioventricular sample defect

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in the second term ASD commonness is second in

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ASD, but the role of

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MRI in HL Central defects is significant in

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that it can identify the atrial sample defect the

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sinus Windows AST and the coronary sinus ASD can be difficult

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to identifying a car geography because of the location notice the

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Coronary science AST located along the posterior aspect

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of the heart difficult to see by Echo car geography indirect evidences

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officiant maybe present in the form of right ventricular dilatation

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or dysfunction, but to identify the

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precise Anatomy measure the right ventricular size quantitatively and

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to quantify qp-back us MRI is

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needed.

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And furthermore in a sinus Windows defect MRI

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can clearly identify the deficiency in the wall between

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the SVC right atrium and left. Hm

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conference and also identify their normal spawn routine vein.

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Draining into the superior vena cava from the upper lobe

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of the right lung sinus Windows is defects and

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coronary sinus defects. Those are two asd's that MRI has

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a very important role and furthermore in the other defects primarily effect.

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And secondly effect. MRI can guide closure see

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whether the rims are adequate critical and second of ASD which require which

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may be treated by Catherine interventions

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and to also to measure the right ventricular size function and to

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quantify the cubic us when the cubic uses large

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over 1.5 indicates that there's a significant shunt a problem

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ASD typically found in neonates where young children

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can be recognized by echocon geography

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young patients are a better Windows for geography and

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for the more it can be closed. But if there's any associative normalities

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MRI is a better chance to diagnose

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to identify associative demand such

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as hraventricular valve programities abnormalities of the

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ventricles all the great festivals and the common remains so different types

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of atrial Central defects shown in this particular case.

Report

Faculty

Anil Attili, MD

Clinical Associate Professor

Michigan Medicine

Tags

Myocardium

MRI

Congenital

Cardiac Chambers

Cardiac