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Overview of Congenital Cardiac Disease

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So I think an abnormal cardiac silhouette is super

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frustrating because, um, there's lots

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of different ways the cardiac silhouette can look abnormal.

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And all of these patients go on to echocardiography.

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So I don't like to go crazy being like, oh, it has this sort

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of morphology or, you know, going crazy about, um,

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calling it abnormal because they go on to echocardiography.

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Um, there are a few morphologies that I, um,

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do pay attention to on a newborn chest x-ray,

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and the, the most common one is the wall-to-wall heart.

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So that's a good, uh, kind of abnormal cardiac morphology

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where it's massively enlarged.

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It's good to have a differential to give your

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neonatology colleagues.

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So Epstein anomaly is one

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of the more common pulmonary atresia

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with intact ventricular septum.

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You might have a huge pericardial effusion, um,

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and that will be well diagnosed on echocardiography as well.

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Or if you have a patient with tuberous sclerosis,

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you can have a very large rhabdo myoma.

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So rhabdo myomas are a cardiac tumor

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that are largest when the patient is born

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and that can give you that wall to wall heart morphology.

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And here's just an example of a patient

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with Epstein anomaly.

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Here's another example of a wall to wall heart, if you will.

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Um, and this was another patient with Epstein anomaly, um,

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just pointing out some of the support devices

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and this infant, which all look appropriate.

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We have an endotracheal tube.

1:19

Um, in the, uh, upper to mid trachea,

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we have an umbilical venous catheter at the, uh,

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T 90 10 vertebral body level.

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So actually a little bit low line. I misspoke.

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And then this is an umbilical venous catheter.

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So the umbilical arterial catheter takes that curve

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as it's entering from the umbilicus

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and joins up with the iliac arteries.

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The umbilical vein will go straight into the umbilical vein

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towards the ductus 1 0 7.

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So this is actually a little bit high lying position

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of this umbilical venous catheter tip.

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We would ask 'em to retract it just a little bit

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to the low right atrium level.

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Um, just a quick differential for etiologies

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of congestive heart failure in a newborn infant.

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Um, you can see this list here.

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I want to point out just two of the etiologies

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that are not cardiac in nature.

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So extra cardiac etiologies

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of congestive heart failure in a newborn.

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So you'll have a chest x-ray where it sure does look like,

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um, a big heart, uh, pulmonary edema, like lots

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of pulmonary vessels.

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Uh, so plethora pulmonary vasculature,

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and then the echocardiography of that infant will be normal.

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So structurally normal heart, there are two things you need

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to recommend when you see this, uh, radiographic picture

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and then, um, get that history.

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And the first is this structure here.

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So I know we already talked earlier about head ultrasounds,

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but this is one of the things you want to ask for

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and rule out, um, when you have an infant

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with congestive heart failure.

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So this is, uh, a head ultrasound

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where we are showing this very dilated, very tortuous, um,

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vascular structure with lots of aliasing.

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This is the vein of galin aneurysmal malformation

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or, or Vega. Um,

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And this is actually a little bit of a misnomer

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because the vein of galin doesn't actually form.

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It is an, uh, arterial venous fistula

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of the median pros cephalic vein,

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everybody still calls it the vein

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of galin aneurysmal malformation.

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And the etiology of congestive heart failure is

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wholly hats vascular shunting intracranial.

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So that left right shunting causes congestive heart failure

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on a chest x-ray appearance.

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The second clinical scenario

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where you're had gonna have a chest x-ray

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that looks like congestive heart failure,

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but has a structurally normal heart, um,

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on echocardiography is a second extra cardiac shunt,

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and that is the congenital hepatic anoma.

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So congenital hemangiomas involving the liver can be

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ginormous and they can have tons of shunting of blood.

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So it is again, a left

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to right shunt causing over

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circulation at the level of the heart.

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Congenital hemangiomas are largest at the time of birth,

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so we can see them on fetal imaging.

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And this is just one of the phases

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of a a biphasic CT in this infant postnatally.

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And you can see how crazy vascular these are.

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Um, they have lots of shunting within the liver

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and so that can give you a, a chest x-ray, uh, picture

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of congestive heart failure.

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Moving on to a different topic altogether.

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Um, and that is the esophageal atresia trachea

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esophageal fistula spectrum.

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So, um, with trache, esophageal fistulas

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or esophageal atresia, the classic radiographic appearance,

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it's gonna be that they can't pass a ogle tube, um,

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pass the upper, uh, thoracic esophagus.

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And so on an x-ray you're gonna see a ogle tube stuck

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above the level of the thoracic inlet.

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And in this example, we can see gaseous distension

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of this upper esophagus.

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And so this is esophageal atresia.

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There are types of esophageal atresia with

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and without trache esophageal fistulas that I,

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I will let you Google, but uh, it's important

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to tell your clinical team is there a fistula

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or is there not a fistula?

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So I don't go through type one, type two,

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type two, type type five.

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I just say this is esophageal atresia.

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And then if you don't have anything in your stomach,

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if you don't have distal bowel gas, there is no fistula

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because there was no way for bowel gas

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to bypass the atretic upper esophagus

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to get into the stomach and into bowel.

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The good news is most of the patients

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who have esophageal atresia with

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or without a fistula, they have an idea

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that it exists on prenatal imaging

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because they, if there's no fistula,

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they don't see a stomach full of fluid, um,

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on fetal ultrasound

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or if it's a patient with a fistula,

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they will see a distended upper esophagus.

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Typically, if not, it will be an infant who presents

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with respiratory distress

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and they have failure to pass a repo type enteric two

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or any type of an enteric tube pass the

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upper, um, esophagus.

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When you see a patient

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that you're concerned about esophageal

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atresia, either with or

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Without a fistula, I want you to stop

5:58

and ask yourself where is the vertebral body anomaly?

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And so this one is subtle in this infant.

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All of these vertebral bodies look okay until we get

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to the inferior sacrum.

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So this is a vertebral anomaly associated with a es,

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an esophageal atresia.

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So now we're dealing with the ral spectrum.

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So this infant will undergo, uh, screening echocardiography,

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plus this patient will get a spine ultrasound

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to rule out spine malformations.

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And then last but not least,

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they will also get a renal ultrasound

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to rule out renal anomalies.

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So that is the ral spectrum.

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Um, all diagnosed on one little

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chest and abdomen radiograph.

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Okay, how about this other type of fistula?

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Um, so this is a grainy example.

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I'm sorry, but you can tell this is a ogle type enteric

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tube, not an endotracheal tube

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because it has these radiolucent bands in the catheter.

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So this is an enteric tube, not an endotracheal tube.

6:53

This one will say there is a fistula

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because there is gas that has been able to pass through

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that, uh, esophageal atresia

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through the tracheal esophageal fistula.

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So gas is now in the stomach.

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Yes, this is a very distended stomach for whatever reason,

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sometimes these patients, uh, preoperatively, we'll go

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to esophagus to try to delineate that fistula.

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More often than that than not, they go straight to the

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or in our experience,

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but we see them postoperatively looking

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for either a recurrent fistula

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or a postoperative leak as in this example.

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So you can see this, um, abnormal communication between, uh,

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this is our enteric tube that we have dropped to the level

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of the aortic arch approximately.

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We, um, pretty forcefully inject contrast to try

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to get contrast to pacify this fistula communication

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between the airway and the esophagus.

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So this is a trache esophageal fistula that, um,

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persisted postoperatively.

Report

Text

Faculty

Judy H. Squires, MD

Associate Professor of Radiology

UPMC Children's Hospital of Pittsburgh

Tags

X-Ray (Plain Films)

Vascular

Ultrasound

Spine

Pediatrics

Neuroradiology

Neonatal

Musculoskeletal (MSK)

Mediastinum

MRI

Lungs

Liver

Genitourinary (GU)

Gastrointestinal (GI)

Esophagus

Congenital

Chest

Cardiac Chambers

Cardiac

CT

Brain

Body