Interactive Transcript
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Okay case number two. So 45 year
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old female presenting for screening mammogram. So remember screening
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is important as opposed to diag.
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This is not the best image, but
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I'm circling calcifications. Okay, so remember
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a screening exam.
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What by Reds are you going to get? I'm sorry. It's a buy red zero.
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They're gonna get a further work up. My question to
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you is what views are
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you going to recommend to assess these calcifications?
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Do you want to get spot compression in the CC and ml
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but magnification in the CC and mlo or
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spot magnification in the ccnml?
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They kind of all sound the same, but they're very different.
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Okay good. So exactly so it's it's
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C spot magnification in the CC
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and ML and I want to drive this point home because there is
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really no reason to ever get
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a magnification. Mlo. So repeat
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that again slowly. There's no indication to ever
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get magnification views in an mlo projection. You
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always want to get a true lateral projection. And
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the reason is because you want to
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let them layer the reason you're getting a true
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lateral is you think they might be milk of calcium. You
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want to see them layer on the true lateral view. I'm
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going to go over milk of calcium protocol in a minute, but there's no
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indication for mlo that will not let them layer. So
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always always get you're gonna get magnification views
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get a cc and ml you can either get spot magnification
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or you can get full field magnification doesn't matter.
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But the point is you can get Cc or ml.
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So here is the CC.
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Where they look a little bit smudgy if you'd
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say and here's the true lateral where you see this type of
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tea cupping and that's really what we're looking for. This
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would be what by Reds
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would this be then based on what I just showed you.
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Okay, good. I'm glad that some people got this wrong. So
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this is a very classic case of milk of calcium. It's
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benign. It's a bi-reds too. And that's
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the reason we are getting these true lateral views. So
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milk of calcium. Well milk of calcium is
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I'm going to go into it in a minute. I just
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wanted to a moment about magnification views. They're
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always used for milk of cow. I'm sorry, they're always used for calcifications. It
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uses a smaller focal Zone rather than
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the typical mammogram point one millimeters versus 0.3
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millimeters. You don't use a grid like other
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types of magnification instead you're using an air gap, which
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I'm going to show you in a minute.
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So basically, this is the
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picture that of course we're going to lose this picture when it
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we actually show this on online because they
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don't have I don't have copyright to this image. But basically you're
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taking the object away from the detector. I'm
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sorry from the receptor which creates the magnification. So
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this is one type of this is
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a Formula. You need to know from your board. So
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this the
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The the image distance source to
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image distance over the source object distance is what
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creates a calcific the magnification so instead of
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placing it exactly you're
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gonna you're gonna place an air get you're going to remove the breast from
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the detector and that's
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what causes a magnification by bringing it close through the
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receptor. It's going to make a magnification view. So magnification
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views. Like I said, there's no indication for
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an mlo I'm going to repeat that again. No indication for
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mlo mag. The reason you're doing this
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is you want to see if it's milk of calcium. So if it's milk of
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calcium
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It's going to look like layering in the bottom of a teacup on
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that true lateral view. It's this layering
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appearance and it's going to be you're gonna be smudgy or
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even hard to see on the CC. And then what you
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do is you you get the CC mags first
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the tech shakes the breasts and weights five
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minutes and places them in compression. And then you
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get the ml mag and you're basically letting the calcium kind of
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fall to the bottom of the cyst. This is caused by cyst
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calcium insists and it's benign. So
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if you ever see that layering appearance or trying to
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say it's milk of calcium, it's a bi Reds tube benign.
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Okay. Hope that's helpful. So like I said, you can get full field
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or spot magnification views full field
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you want to do if it's a large area of calcifications or
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you're trying to get some Anatomy anatomic landmarks
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to make sure you got the right area spot magnification
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you want to use that if you
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have a mass or asymmetry associated with
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the calcifications and you want that to go away or look
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at a little bit better. So basically you're you're
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applying compression, but you're also getting magnification. The
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the drawback is that they're it's
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a smaller field of view. So you're not you really
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kind of have to be more accurate the tech has to be more accurate with
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what they're magnifying as opposed to a full field map.
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Which lets you see more anatomic landmarks.