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These are some of the active areas of, uh, research.

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Um, that I think, uh, will take us

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through the next five years

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or so is really, you know, is there a role

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for CTC in the younger than 50 year old patients?

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Um, and we need to evaluate

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and, um, uh, perform some

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of the validation studies in younger patients.

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We really need to continue

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to look at minimal prep CTC if we can't entirely get rid

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of the laxative,

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but to decrease the rigor of, uh, preparation for ctc.

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And I think that we can get there looking at ultra low dose

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CTC and that already, um, has been studies continues

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to be studied, but to decrease as I mentioned,

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from the three milli seaver very low dose

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that we are achieving now to even sub milli Seaver.

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So less than one milli Seaver.

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And then what's the role of some of the new technology

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by dual energy ct, which we are evaluating here at Moncure,

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um, but also, uh, artificial intelligence.

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And this was, um, a study that, uh,

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looked at sub milli secret ctc

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and you can see that, um,

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there was no difference in image quality.

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This was a small pilot study of only 26 patients,

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but you can see that low dose

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for them was at less than one milli secret, um,

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without compromise of image quality.

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What about dual energy?

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Um, well, um, in this one study, again,

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this was a pilot type study.

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They did not use, uh, oral contrast,

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but they used IV contrast.

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You know, those sensitivity didn't really change

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because it was already fairly high.

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You can see that with the use

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of the iodine map from dual energy ct, uh, we were able

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to achieve a very high, uh, specificity, much higher than

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with conventional ctc.

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Here's an example from that study giving IV contrast

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where you can see that stools showed no iodine, uh, content,

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content on the iodine map.

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Whereas, um, this polyp, I mean, I'm sorry,

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this large poly point carcinoma showed, uh,

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enhancement in high iodine content

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and polyps in general, um, outside of carcinoma even, uh,

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tend to enhance IB contrast.

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I just wanted to bring to your attention

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that there is AC rads out there

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and I leave it here for you to, uh, take a look at.

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But, um, we are in the process through the American College

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of Radiology Cold Cancer Committee, um,

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advising the RADS classification,

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but this is still in use, um, with, uh, C one normal, uh,

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study C two one

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or two small polyps that are in the six to nine ER category.

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C three is one large polyp or three

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or more of the small polyps, and C four is a clear mass.

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And so what is this case?

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A six year old now with a single seven millimeter

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polyp is a c2.

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Here's a 65 year old with a large 12 millimeter Apollo,

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and clearly this is a3.

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There's also an classification

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Along, um, just to show you, um, E one is normal, E two

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clinically um, insignificant.

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E three is likely clinically unimportant.

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E four is potentially clinically important and

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therefore you would definitely need to work it up.

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So here's a patient with, um,

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a right-sided adrenal mylo lipoma, uh,

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clinically insignificant.

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So an E two. Here's a patient with what, a left-sided.

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You can see a renal cell carcinoma with all the, uh,

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associated adenopathy, retro peritoneum.

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And this is an E four.

Report

Faculty

Judy Yee, MD, FACR

University Chair and Professor of Radiology

Montefiore Medical Center, Albert Einstein College of Medicine

Kevin J. Chang, MD, FACR, FSAR

Section Chief of Abdominal Imaging & Director of MRI

Boston University Medical Center

Tags

Oncologic Imaging

Neoplastic

Large Bowel-Colon

Gastrointestinal (GI)

CT

Body