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Cardiac MRI Case 14

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The next case belongs to patients who have had

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cardiac surgeries. There's four different types of surgeries here

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shown.

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And four different patients with four

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different types of surgeries, and these are all post-operative

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Mr. Examinations and based on the post-operative appearances.

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I'd like for the audience to make

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a to come

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to conclusion as to what what the patient

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was probably born with in terms of the congenital defect. So, let's

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have the polling questions while we look at these cases, please.

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Okay, so the four choices are either repetitology or

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fellow.

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A arterial switch procedure done

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for dtga or in atrial switch procedure done

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for dtag, which stands for detranspose great

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arteries or a Fontana procedure. I'm going

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to I'm going to show these four cases first and then we will go

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through we'll take a pull and show these and discuss the answers case

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a

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the patient may have had either of these following procedures

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only one.

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This is case b.

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Case C and lastly case D. So

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let's start with case a let's take a poll

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of what the audience thinks the patient.

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May have had done for their congenital heart defect.

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Okay, RTL switch procedure accident very educated

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audience. As far as congenital heart disease is concerned notice

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the pulmonary arteries are draped in front of the auto what's

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known as Napoleon's hat the coronary arteries seem to

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have a rising. Abnormally. The left is has an

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entire course seems realizing slightly towards

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on a clock. It's arising more towards the love

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the clock a position of the ten

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o'clock position rather than expected. The aortic root is dilated this

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particular configuration. The pulmonary artery is being in front of the aorta draped

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over his typical for an arterial switch procedure known as

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a comment.

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This patient was born with a transposition of the

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great entries.

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Implying the authorized from the right ventricle the pulmonary

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arteries arose from the left ventricle and they were switched when they

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switched the coronary artery is also switched and the

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crony obstruction or kinking is a complication this procedure

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for the more iotic root dilutations are complications procedures

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can be seen in the third is in the third image here

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the typical finding of pulmonary arteries depross

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the aorta in front of the OTA as a finding

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for an arterial switch procedure. This can

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lead to the complication of pulmonary artery stenosis common is complications after arterials

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which are our YouTube obstruction stenosis iot

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crude delegation and Crone reality obstruction.

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But the this this picture on

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the left showing the pulmonary arteries

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across the ascending Toyota is a typical

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finding for an arterial switch procedure has been performed for

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Day transposition of the great arteries.

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Okay case number B a case b can we

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have a polygen please? This patient has had a surgical procedure

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for

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congenital heart disease and which surgical procedure

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and which control heart disease?

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Can the audience um, take a poll take

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a walk again? Okay, the question, unfortunately, neither

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of the water's got the correct

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answer here. The correct answer is C atrial switch

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procedure for transposition of the great arteries notice

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that this the right ventricle is dilated. This

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track has been insufficiency. The pulmonary veins

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are draining into the right side of the heart. So this patient was

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also born with a transpositional great arteries as in the previous patient

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of the in up to

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the 1990s early 1990s. The surgery that

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was performed for an arterial switch was an atrial switch procedure. So

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instead of switching the great arteries what the surgeon has

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done here is connected the pulmonary veins to the right side

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of the heart. So the the Palm ravenous blood goes in the

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right atrium right ventricle and the right ventricles connect to the aorta. So

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the right vertical functions as a systemic ventricle and

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because it's it's functioning against high blood pressure it

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eventually fails. That's what leads to the right

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clinical advantage.

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A good station. This patients had an atrial

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switch procedure. The SVC has been baffled

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into the left side of the heart notice that this patient

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has svcs stenosis a typical location for baffle obstruction lower

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end of the SVC common location for Superior as

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we see to left atrium baffle obstruction.

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This patients had an atrial level switch for transposition

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of the great entries. The complications here are right

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ventricular validation track has been sufficiency and stenos

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in the lower SVC. You can see the pulmonary veins

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can be seen draining to the right side of the heart as we see goes

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into the left side of the heart atrial switch procedure for transposition the

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great entries not commonly performed in this current

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ERA. However, there will be a significant number of survivors of

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the atrials which procedure that present for MRI. The role

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of MRI is to evaluate the venous baffles and the

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function of the ventricles spreading the right ventricle, which is

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still connected to the aorta. Okay case numbers

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see this patient has had a surgery

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for congenital heart disease and the type of surgery performed

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can be

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Can be figured out from

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these pictures the correct answer will be either one

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of the following.

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Okay, good, excellent Fountain procedure. This patient

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has a single ventricle notice that there's a single ventricle in

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this patient not too ventricles the SVC and

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ivca connected directly the pulmonary arteries. The single

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ventricle is connection to the aorta. This patients are the four-time procedure

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total Cave of pulmonary connection commonly out

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is connected directly to the SVC and IVC and the single

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ventricle functions as a systemic ventricle and connected to

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the aorta. This has patients headache Fontan procedure for

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single ventricular hypoplastic left-hand syndrome in

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this particular case.

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Case number G. There's only one right answer

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now.

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This these MRI images belong to a patient has had

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a heart surgery in the past.

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And the correct, correct?

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And so would be either of these four what has this patient

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had.

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Okay to charge your fellow repaired excellent the abnormalities

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shown a dilated right ventricle. The

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outflow tract region of the right clinical is very thin and discard

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patients had an outro attract patch for

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relief of pulmonary outflow tract obstruction and was

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born with tetralgia fallow harmonic insufficiency is

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the major residual hemodynamic effect in survivors of tetralogy of

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fallow that leads right ventricularization the patch

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and the outflow track region, which was repaired maybe scarred notice

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the scarring in the right 24 hour track daily features

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of repair technology of fellow.

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So full cases for diagnosis technology of fellow Fountain procedure

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atrial switch for translational

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grade arteries and arterial switch for transpositional great

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arteries all very common and important

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indications for referral to adult kitchen hard disease practices

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and MRI in particular because MRI can

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clearly evaluate intercontiac and extra cardiac structures

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for anatomy physiology Form and Function in patients

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with prepared congenital heart disease a class one

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indication a very important indication of economic MRI.

Report

Faculty

Anil Attili, MD

Clinical Associate Professor

Michigan Medicine

Tags

Myocardium

MRI

Iatrogenic

Coronary arteries

Congenital

Cardiac valves

Cardiac Chambers

Cardiac