Interactive Transcript
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Dr. Farnaz, I just want to quickly define the
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phases of enhancement in the kidney,
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which are similar to phases of enhancement
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of the liver with slightly different names.
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So, arterial enhancement, what
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do you think, 30 to 40 seconds?
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Yep, around 40 seconds.
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And that's where hypervascular, uh, masses
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like renal cell carcinoma, the nasty ones.
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The more vascular they are, the nastier they are.
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That's where they live.
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So, an arterial enhancement phase
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can be potentially very important.
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Then the next phase would be the
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nephrogenic phase, about 85 to 90 seconds.
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And then finally, the excretory phase
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is gonna be about 2 to 4 minutes.
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Now, the portal venous phase, which many of us are
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used to, 60 to 90 seconds as an analogous, uh, term.
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So, when you're measuring lesions,
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which we're gonna do throughout this entire
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vignette series, where you measure matters.
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So, if you have a really hypervascular lesion,
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like a classic aggressive renal cell carcinoma,
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you might measure it in the arterial phase,
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and then see if it washes out progressively over
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time if the Hounsfield unit drops properly.
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On the other hand, a hypovascular lesion may
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show up better a little bit later in the middle.
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Maybe a minute and a half,
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two minutes, two and a half minutes.
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And then you might follow that into the delayed
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excretory phase to see if that has a drop.
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So, it may be beneficial to do serial measurements.
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Arterial to nephrogenic phase,
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nephrogenic phase to excretory phase.
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38 00:01:27,490 --> 00:01:29,510 Any other comments about, you know, phases?
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No, I think that's it.
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Alright, Pomeranz and Farnazzo out.
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