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Cardiac MRI Case 4

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The history should be available. I'm going

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to play the

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gonna show some still images here case number

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four is actually a 54 year old

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man.

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With increasing Insurance of bread and NMR was

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performed. They said three chamber view notice the left ventricle left

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atrium right ventricle aortic route ascending

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aorta.

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And this is a oblique sagittal

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view right ventricle harmonic artery.

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Iotic Arch listening Iota right atrium. Now

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I'm going to show some some cine images which are

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very important in this particular case.

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This is the three chamber View.

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Notice the left ventricle right ventricle back

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to Atrium iot Groot.

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Just going to let that play for a minute.

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And now we're going to see the oblique sagittal view

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here. Actually this cine was what I wanted. So just

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play within a minute when I show this me.

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Okay. So this is the cine view right ventricle right

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ventricular outflow tract goes the key images here. So

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we have a combination now. I'm going to go back to the still images

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because it's still images have most of the

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information here. So here we have a 54 year

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old man with increase Insurance of bread.

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Three chamber View and oblique's natural

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view of the right ventricles. The correct answer is five

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choices here if we can put up the phone, please.

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Yeah.

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So it's five choices here. This is a congenital heart condition.

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Is it a double Outlet right ventricle is a

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great vessels transposed is the

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isolated harmonic stenosis of the trunk is a trunk usarteriosis or

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is a tetralogy of fallow.

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So three chamber View and an oblique exchange of view

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of the right ventricle or right 24 hour track view. Can we

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have trunkus arteriosis unfortune?

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That's not the right answer. The right answer is a

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tetralogy of fallow notice all the features of

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Technology of fellow present a Yota overrides the

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right ventricle. There's this vsd ventricular separate defection

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notice the defect in the septum. There is harmonic stenosis.

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I'm going to show the cine again notice the

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defacing the right ventricular outfit track and there's right ventricular hypertrophy

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all the classical findings of Technology of fallow.

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Trump is arteriosis when a single vessel arises from the

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Arises from the heart and gives rise to the auto and

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the pulmonic artery. This is not a case of Trancas arteriosis

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doubled out. It's not a double Outlet right ventricle. It's

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not the great verses are not transpose. There's not

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isolated harmonics nurses a key findings in technology of

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fallow. Once again, the city images. This is

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the Sydney image notice the vsd aorta overriding

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the two ventricles.

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Okay findings of tetralogy of fallow.

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and then on the

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oblique sagittal view noticed the pulmonic stenosis

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seen as defacing the right ventricular outflow tract

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and consequent right ventricular hypertrophy key findings

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of Technology of fellow.

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Any questions before you before we go to the next questions

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instead of questions based on a tetralogy of fellow. So

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next question based on I'm just going to keep this keep this

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up is falling primary and

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tomical repair which of the following

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Is the Communist hemodynamic complications technology of

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fellow has to be repaired?

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As it is a cyanotic congenital heart disease

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and typical repairs performed by relief of

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right ventricular off retract obstruction and by closure of the ventricular defect.

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So following repair patients are not completely cured residual

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hemodynamic effects can occur

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and the Communist human Dynamic abnormalities is

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one of the following one of the Five Below.

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Tricuspid insufficient and that's not the right answer

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the right answer. It's pulmonic insufficiency. So they're right answers d

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Called Monica and sufficients. Yes strike us but insufficients in can occur but

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that's not the primary abnormality user track us but insufficient secondary to

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dilated right ventricle. So relief of our VO2

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obstruction requires resection of the right ventricular output tract region

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or all the pulmonic valve leaflets and

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following resection of the right clinical

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outflow attract either by a muscle bundle a section up harmonic

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valve resection harmonic insufficiencies, the

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key finding and that's the key hemodynamic abnormality after that after

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correction of tetralgia fellow and a large volume

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of adult congenital practices is follow-up

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of patients with tetralogy of

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calculation of research and function of harmonic registration.

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And right ventricular volumes says as

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the harmonic valve becomes insufficient the

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right ventricle keeps dilating and at some point harmonic valve

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repair and maybe needed to further

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prevent irreversible RV

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dysfunction. So harmonic insufficiency is a

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key finding after a pair of techn.

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Of the others can occur that can be some residual harmonics

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nurses track husband insufficient of panaker, but it's usually secondary to

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rvalitation. They can be residual vsds

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iot growth can be dilated and based natural fellow, but

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that's not the primary abnormality. The primary abnormality is pulmonic

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insufficiency after a pair of tetralogy of

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hello.

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Question number three, so harmonic insufficiency can

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occur and at some point right ventricle May Fail and

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before that failure occurs, the harmonic valve may

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need to be replaced either percutaneously or by surgical repair. So right

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ventricular volumes are a key parameter to

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monitor after repair of controls your

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fellow and there is a threshold when it's considered that

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harmonic ground replacement is needed. So question number three asks what

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the threshold is can we put question number three

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on please. So let me read out the question. So when when should

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the harmonic boundary be replaced after repair of control

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your fallow? Is it at 90 to 130 150

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to 117 17200 or

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250? Ml per square meter father right ventricular size.

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The correct answer is 150 is

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15.

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So when the right?

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When the right ventricular volume exceed 150 to

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170 ml per square meter.

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The harmonic valve should be replaced

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that's considered the thresholds or repair

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of tetralogy of fellow. So

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after repair of tetralogy of fallow pulmonic

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insufficiency is the primary hemodynamology

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and serial MRIs

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performed typically every one to three years and when

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the right ventricle reaches 150 to 170 MLS

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per square meter indexed.

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For the pulmonic valve replacement is considered. It's

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the control geofollow a common

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the Communist cyanotic and general heart disease VST Toyota

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overriding the right ventricle, right ventricular outfitractor abstraction

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and write ventricular hypertrophy and atomic repair

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consists of vsd patch repair and relief of

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RV obstruction. The primary human Dynamic complication

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adult survivors is residual harmonic insufficiency. Same

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CMR cardiacomar is used

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to guide the timing of common replacement which should be

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performed before the right one of the severely dilated typically.

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When the index and diastolic volume reaches 150

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ml per square meter harmonic bound replacement is considered,

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okay.

Report

Faculty

Anil Attili, MD

Clinical Associate Professor

Michigan Medicine

Tags

Myocardium

MRI

Congenital

Cardiac valves

Cardiac Chambers

Cardiac