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SCAD

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Next case is a 58 year old woman who presented

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to the emergency department with chest pain.

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She didn't have any past medical history,

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but her ECG findings were

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concerning enough to take her to cath.

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I'm gonna not tell you what the cath showed

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until we see the case here a little bit.

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So I'll show you first the cene as usual.

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So our two chamber view, I think

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hopefully at this point you're getting

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comfortable looking at these.

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And I think if I freeze it around this frame, one

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of the things that's pretty clear here in the anterior

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and apical inferior segments, there's definitely thinning

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and hypokinesis relative to these basal segments.

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So already on this two chamber view, we're sort

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of suspicious that there's something going on here.

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And then we can also see on this four chamber view here in

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kind of the apical

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and mid for septal segments here we can see similar

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findings, some of this thinning

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and wall motion hypokinesis here,

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and then three chamber, kind of an incidental finding.

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If you look at the aortic valve right here,

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this person has aortic insufficiency, which you can see kind

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of coming back across ATUs.

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But then focusing now again on the myocardium,

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you can see again sort of this relative thinning involving

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septum apex and kind of infra lateral segments of the heart.

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So kind of this apical region is looking not super happy.

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We now move down the short axis images from base to apex

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where we see some myocardium here, basal

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function here, everything's really

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contracting vigorously thickening well looking okay,

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but then one

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or two slices later, as we start to kind of get into the mid

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region, you start to see thinning

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and hypokinesis here of the anterior segment.

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A little bit of anterior septal,

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really this anterior lateral segment as well.

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And then as we start to get down to the true apex,

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it's very thin circumferentially, so

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certainly thinning

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and pretty much kinesis of these apical segments,

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which is similar to what we saw

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on the long axis use.

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So now if we go

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and we look at our findings on LGE imaging, again,

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this is a person with chest pain

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and we've just had a calf going from base to apex,

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not a ton of LGE here, even in areas where we saw a lot

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of thinning and wall motion abnormalities in the

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mid to apical segments.

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But what you do start to see as you kind

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of get down here towards the true apex here is

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where we really start to see LGE

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and a kind of vascular distribution.

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So maybe the first site here that we see is kind of lateral

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aspect of the apex.

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There's sub, sub endocardial, transmural, LGE,

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similarly here in the more inferior aspect of the true apex.

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And then if we get out here to the far apex, it looks like

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probably transmural.

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So we'll take a look at our long axis views.

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I think the three chamber may be a good view

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to take a look at here.

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This is, I'm clicking through the three chamber.

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You start to see again as we get into the apex here,

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this is gonna be kind of lateral aspect of the apex,

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our inferior and infra lateral aspect of the apex.

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You see transmural, LGE here, probably some transmural,

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LGE kind of more circumferentially at the apex.

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As I click through these three chamber slices,

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look at a similar view here on the four chamber.

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And on some of these views you can see the whole apex has

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completely got LGE, kind of transmural, LGE.

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And then a few areas maybe that have a little bit

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of less transmural, LGE, so not the entirety of

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The segments that were Hypokinetic.

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You know, again, just as a summary, you know,

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we really see hypokinesis involving a lot of

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what looks like LED territory, these anterior segments.

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But the LGE is primarily focused down

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And the apex itself, you know,

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from a cardiac MR standpoint, I think what we would say is,

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you know, there appears to be apical myocardial infarction.

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That is, you know, depending on the chronicity

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of the finding and the presentation, you know, is transmural

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with low likelihood of functional recovery.

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Now this was more of an acute finding

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or you know, kind of when we're doing the MR Subacute.

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So it's a little viability,

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still a little bit challenging when they're

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still kind of subacute.

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What this actually turned out to be on cath,

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this was the case of spontaneous coronary artery dissection.

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So the patient came in with chest pain.

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50 year old women are tend to be predisposed

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to spontaneous coronary artery dissection or scad.

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That's kind of the vernacular.

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And so it was a pretty long segment distal LAD

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or mid to distal LAD.

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And so it's probably that's what's causing a lot

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of this wall motion abnormality is maybe more of a ischemia

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or even sort of a stunning, uh,

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appearance of the myocardium.

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And then unfortunately,

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probably did have true myocardial infarction of the apex.

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So this is a case of SCAD and this woman.

Report

Faculty

Bradley D. Allen, MD, MS

Assistant Professor; Chief, Cardiovascular and Thoracic Imaging

Northwestern University Feinberg School of Medicine

Tags

Vascular

Myocardium

MRI

Coronary arteries

Cardiac Chambers

Cardiac