0:00

<v ->This second case also is a young patient,

0:04

came to do cartilage mapping, okay?

0:07

We do cartilage mapping for some surgeons, a knee surgeon.

0:13

We are starting to give a cartilage map

0:16

with the (indistinct) sequences.

0:20

In this case, the patient had anterior knee pain.

0:23

We did the cartilaginous mapping

0:26

but did not demonstrate any interesting thing on here, okay?

0:31

And for this sequence,

0:33

we use gradient echo

0:37

to study the cartilage.

0:38

It was a, I think a 28-year-old male, played soccer.

0:44

And with this gradient, we could see,

0:49

we could see

0:52

better some other structure that appear in this exam.

0:57

Besides the effusion, the prominent effusion,

1:03

the gradient show it very well.

1:09

So compare here, the hemosiderin deposits

1:13

on the synovial of this patient.

1:16

So he came to do the mapping

1:20

and here in comparison to the,

1:24

to the proton density imaging here.

1:27

See?

1:28

See how increases the sensibility, sensitivity

1:34

using the gradient for the knee.

1:40

And then,

1:42

see, this is also,

1:45

this proton density show it also.

1:51

And this patient did surgery, okay.

1:57

To remove that, they do a synovectomy.

2:00

So they need to to get out all the synovial membrane.

2:06

It's not a easy surgery, takes hours to do that.

2:09

And this tumor

2:14

has a local recurrence.

2:16

I'm gonna show you the other,

2:20

five years after the,

2:24

after what happened.