0:00

I wanna share with you a summary slide of

0:05

the PI RADS designation one through five.

0:08

And most of you that do breast imaging know

0:10

what those designations mean.

0:13

One is normal, two is benign, three is indeterminate,

0:16

four is likely cancer,

0:18

and five is likely cancer, 1.5 centimeters or greater.

0:24

Now, in the peripheral zone,

0:27

the diffusion criteria is the major criteria.

0:29

So we're gonna grade diffusion one through five.

0:33

That's not the RADS designation,

0:34

that's the diffusion designation.

0:37

You can see if the diffusion criteria meets number five,

0:40

and I'm gonna explain to you exactly what that is.

0:44

Then, regardless of what the T two appearance is,

0:47

and pretty much regardless of what the dynamic

0:50

contrast enhanced enhancement is,

0:52

that will be the PY RADS designation.

0:55

So in other words, if the DWI criteria is for

0:59

if there's any T two signal alteration in that locus

1:04

and or any dynamic contrast enhanced MRI,

1:07

if you're doing multiparametric MRI, then

1:10

that would be up pi rats four.

1:12

We'll take on the transitional zone separately.

1:14

But what I'd like to do now is take you

1:16

through the diffusion criteria of one through five.

1:21

So that makes some sense to you.

1:23

Let's have a look, shall we?

PI-RADS assessment - Peripheral Zone

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0:00

I wanna share with you a summary slide of

0:05

the PI RADS designation one through five.

0:08

And most of you that do breast imaging know

0:10

what those designations mean.

0:13

One is normal, two is benign, three is indeterminate,

0:16

four is likely cancer,

0:18

and five is likely cancer, 1.5 centimeters or greater.

0:24

Now, in the peripheral zone,

0:27

the diffusion criteria is the major criteria.

0:29

So we're gonna grade diffusion one through five.

0:33

That's not the RADS designation,

0:34

that's the diffusion designation.

0:37

You can see if the diffusion criteria meets number five,

0:40

and I'm gonna explain to you exactly what that is.

0:44

Then, regardless of what the T two appearance is,

0:47

and pretty much regardless of what the dynamic

0:50

contrast enhanced enhancement is,

0:52

that will be the PY RADS designation.

0:55

So in other words, if the DWI criteria is for

0:59

if there's any T two signal alteration in that locus

1:04

and or any dynamic contrast enhanced MRI,

1:07

if you're doing multiparametric MRI, then

1:10

that would be up pi rats four.

1:12

We'll take on the transitional zone separately.

1:14

But what I'd like to do now is take you

1:16

through the diffusion criteria of one through five.

1:21

So that makes some sense to you.

1:23

Let's have a look, shall we?

Report

Editorial Note

Faculty

Stephen J Pomeranz, MD

Chief Medical Officer, ProScan Imaging. Founder, MRI Online

ProScan Imaging

John F. Feller, MD

Chief Medical Officer, HALO Diagnostics. Medical Director & Founder, Desert Medical Imaging. Chief of Radiology, American Medical Center, Shanghai, China.

HALO Diagnostics

Lesson

Introduction

Lesson

Prostate Anatomy

Lesson

Evaluating BPH

Lesson

What's New in PI-RADS 2.1

Lesson

Prostate MRI Imaging Caveats

Lesson

Prostate MRI Case Reviews

Lesson

PI-RADS 2.1 Case Review

Lesson

Multiparametric MRI Case Review with Dr. John Feller

PI-RADS assessment - Peripheral Zone