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Breast Imaging Overview Case 7

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0:01

Okay. So what type of procedure is

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this?

0:07

Open this.

0:13

Up. There's a stereotactic needle localization post ultrasound

0:16

guided procedure or galactogram.

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So this is actually wow kind of

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I'm glad that some people are getting this wrong. So this is actually

0:28

a needle localization procedure and whenever you

0:31

see that alphanumeric grade, you know, it's a needle localization as

0:34

opposed to a stereo which I want to show you after I

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don't think I have it but I will

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Um, so so a patient

0:44

comes in if you don't know this, you're probably going to lose you

0:47

here, but this is good because I want you guys to learn something.

0:50

So if a patient comes in for a needle localization, what's the best

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approach and let's pull up the poll here. Do we

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want to come from lateral for medial from above

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or From Below?

1:03

So this is the CC and this is the mlo.

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Or ml it should be an ml.

1:15

Okay.

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So let's close the poll.

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Okay good. So the two people that answered got

1:25

it, right. So the shortest distance is from lateral.

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So you always want to go for the shortest distance whenever

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you're doing a needle localization or stereotected biopsy always

1:34

wanted to do the shortest distance.

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And and what size needle would you

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use would you use a three five seven

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and a half or 10 centimeter needle?

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We're going to go over all this so you're going to be Pros by the time

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we're done with it.

1:54

Okay good. So the three people I answered it. It got it, right. So

1:57

yeah, you're gonna want to use a five in this case because you want

2:00

it to be long enough. This was four and a half centimeters. We

2:03

wanted to be long enough to get to the lesion but not too much

2:06

longer than that. So you always want to size up a little bit. So

2:09

when it's four and a half you want to use a five and how

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you tell the tech to position the patient.

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This is where I lose everybody. So we're coming from lateral.

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How are we going to position the patient for their

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needle look procedure?

2:26

lmml or CC

2:30

Okay, good. I'm so glad that nobody

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shows the right answer. So it's LM. So

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this is how I remember it so.

2:40

If you're coming from lateral, I think

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that what confuses people is you're you

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think because the shortest skin surface is is on

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the CC. It's from the lateral view, but

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you actually place it like an orthogonal. So

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let me show you how we actually do a

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A needle look so we talked about this and the

3:02

patient comes from needle. Look you want to choose a shorter skin surface and this case

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it's lateral you're using a five centimeter needle and

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you're going to tell the patient the tech to position the patient Ln. So

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I always think of it as a side

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that you're coming from is the letter that you're going to start with. So if

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you're coming from lateral, it's gonna be Ln if you're coming from medial. It's

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going to be ml. So that's easy way to remember it.

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If you're coming from above the patient is going to be positioned in

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CC and you're coming from above same if

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they're coming from below you're gonna position them CC but

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it all matters where the actual alpha numeric

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grid is open versus the receptor.

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So

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If you haven't seen one, I really urge you to see one in person

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because I think it will make a lot more sense. Once you see it

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in person. I always tell my residence to come in and see because when we plan

3:50

for it, so let's talk about this. So This is

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actually a case where I'm coming from lateral. So I'm

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targeting this clip right here.

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so

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so if we're coming from lateral, we're going

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to be positioned LM. We're gonna put our needle in

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we already measured we know that we need a five centimeter needle.

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So we're gonna use a five and

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we're gonna go in all the way. So in this case, I would go and be I'm

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sorry be and a half and one and like

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a quarter. So you basically put your needle in all

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the way.

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So we put the needle in right where the clip is

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and now all we know is that it's in the same plane is

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it we don't know know where it is or how deep it

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is until we take them out and then we put them in the CC compression

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and then we could actually see where our needle is and

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relation to the the clip in

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the math. So in this case, I really wish I had a better image but you

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can see that the mat that the needle goes beyond the clip and

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the mask and once you confirm that the needles beyond the clip

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in The Mask, then you're gonna hook it you're gonna put the hook

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wire through the needle and the patient goes across

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the whole to surgery with the

5:02

needle and wire in their breasts and then they go to surgery and the

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surgeon takes it out and then they're gonna send you something like this.

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This is called a specimen radiograph. If you've never seen one before

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the patient goes to surgery they take out the

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clip. So when we check us person radiograph, we're looking

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for a few things we're looking for the clip and the wire we're looking

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to make sure that we got the by the math and that you know,

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it's not

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The edge of the margins because we're really going

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for for negative margins and this patient that's going for lumpectomy.

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So this is really how

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you do need a look procedure for my residents come in

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the room with me. You'll make a lot more sense after you see it if you

5:40

haven't seen one in a while.

5:41

So need a localizations are performed when

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the surgeon cannot see or feel the tumor or

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they need a surgical biopsy. Let's say you get atypical ductal

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hyperplasia. They want to take out more tissue. They're going

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to go to the or so we do a needle localization. You can

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do needle localization under any modality where

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you see it best. So if you see it best under mammography because you

6:02

have a clip there. That's one. That's great. You do in our mammogram. I

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like to do it on ultrasound whenever I can because I

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really want to Target that math.

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Um, or you could do it on MRI, but you

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need an MRI compatible needle and wire

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so we don't typically do them here at Cooper.

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These cases are usually performed on the morning of

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the creation surgery. They come to reality immediately before their surgery.

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We put the needle and wire in and then they go straight

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across the hall towards the or they go

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to the or with the needle and wire in the breath that the surgeon removes,

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you know newer Technologies are way better for patients.

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It's all done the same way. But in this

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type of in the newer Technologies here, we use something called

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a radio frequency

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tag, but they also have tags that are magnetic

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or our radioactive. And basically we're

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going to place a little chip a

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little tag right where the the cancer

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is or the thing that needs to be removed and the

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patient can leave with that. We take the needle and wire out

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they just put a clip right where it is and then the surgeon can

7:08

come back a week the patient can come back a week later

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two weeks later kind of indefinitely later. We try

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not to put it in more than a month in advance. But then the surgeon

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when they go to the or the surgeon has

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A receptor whatever it is in our case. They have a radio frequency

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receptor or detector, or you

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can have a magnetic detector or radio a radio

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Radioactive C localization and they find where

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it is in the breast and then they remove it

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and they know they got it because then it you know, it beeps when it's taken out.

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It's kind of like the gamma camera.

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with a sentinel lymph node injection

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And so, you know just to summarize how you

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do need a low procedure. You're going to want to find the shortest skin surface

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and measure the distance needles come in three centimeter

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of five seven and a half or nine. You always want

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to make sure you you know, if you're coming from lateral

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you're going to position them LM. They're coming from medial you're

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gonna position them ML and if you're coming from above or below

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you're gonna position them CC and just simmer on

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that for a little bit think about that. You're gonna

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basically

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find find your target and determine your

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coordinates. You're going to put the needle on straight as straight as

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you can then you're gonna take them out and put them in the other orthogonal directions.

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So if you're in LM, you're gonna put them in CC

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in vice versa if you're in CCR and put them NL or

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Ln you're gonna place the wire through the needle and

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remove and then the patient's gonna go to surgery and you're gonna check this doesn't

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really

Report

Faculty

Robyn G Roth, MD

Women's Imaging Fellowship Director, Assistant Professor of Radiology

Cooper University Hospital

Tags

Mammography

Breast