0:01

So here's an example of a vascular occlusive process.

0:05

So in this case, you can see when we evaluate the IVC, it is really thread-like and

0:11

significantly narrowed here. We are able to get a waveform on it, but it is

0:16

significantly narrowed in comparison to what we would expect.

0:19

We expect a nice, very visible waveform there.

0:23

As we progress through and start to look at some of the other structures, there's

0:28

no issues in the hepatic arteries.

0:32

But when we go over to the hepatic veins, we can

0:38

get a waveform in some places, but we can't get a waveform in all the places.

0:41

So here we're getting a venous waveform, but not exactly what you would expect for

0:47

a hepatic venous waveform. And then what you notice happens with the vessel as it

0:51

goes closer towards the venous confluence, you start to lose that color Doppler

0:55

signal. And similar things are happening in the middle hepatic vein.

1:00

We see some up here, but we don't really see a ton as it gets closer towards the

1:03

confluence. So we have occlusions here in the right hepatic vein.

1:08

We have occlusions in the middle hepatic vein.

1:11

And then

1:12

as we get over to the left, we're seeing a little bit, again, not a great hepatic

1:18

venous waveform, but we are seeing some, but similar kind of processes where we

1:23

don't see it beyond this point. So this was a case of Budd-Chiari syndrome where we

1:27

had severe narrowing of the IVC and then multi-vessel occlusion of the hepatic

1:33

veins. And this can be a diagnosis that leads to cirrhosis and then other

1:38

subsequent liver pathology.