0:00

Hi, my name is Dave Yousem and I'm a professor of

0:04

radiology at the Johns Hopkins Medical Institution.

0:07

And today, I'm going to talk to you about orbital imaging.

0:10

The most common indications for orbital imaging

0:13

with respect to using CT scan

0:15

are for trauma and sinusitis

0:18

to look for orbital complications of sinusitis.

0:21

With respect to MR,

0:22

we are usually evaluating the patient for visual loss,

0:26

in which case we will be imaging both the orbit

0:28

as well as the brain.

0:30

In addition to CT and MR,

0:33

ultrasound is also used for visualization of the

0:37

orbit and this is usually utilized by the

0:40

ophthalmologists for ocular pathology, as well

0:43

as retrobulbar pathology behind the globe.

0:46

The reason why I'm so enthusiastic about imaging

0:49

of the orbit is because it has great anatomy as

0:52

well as a wealth of pathology.

0:54

And one way of organizing your thoughts with

0:58

regard to the pathology,

1:00

is using a mnemonic that was

1:02

taught to me by Stan Siegelman,

1:04

my former residency program director.

1:06

And that mnemonic is vitamin C and D,

1:09

and this stands for Vascular, Infectious,

1:13

Traumatic, Acquired, Metabolic, Idiopathic,

1:18

Neoplastic, Congenital, and Drugs.

1:21

So, when you're stuck with a lesion in the orbit,

1:24

you might want to think about vitamin C and D.

Introduction to Imaging of the Orbits

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0:00

Hi, my name is Dave Yousem and I'm a professor of

0:04

radiology at the Johns Hopkins Medical Institution.

0:07

And today, I'm going to talk to you about orbital imaging.

0:10

The most common indications for orbital imaging

0:13

with respect to using CT scan

0:15

are for trauma and sinusitis

0:18

to look for orbital complications of sinusitis.

0:21

With respect to MR,

0:22

we are usually evaluating the patient for visual loss,

0:26

in which case we will be imaging both the orbit

0:28

as well as the brain.

0:30

In addition to CT and MR,

0:33

ultrasound is also used for visualization of the

0:37

orbit and this is usually utilized by the

0:40

ophthalmologists for ocular pathology, as well

0:43

as retrobulbar pathology behind the globe.

0:46

The reason why I'm so enthusiastic about imaging

0:49

of the orbit is because it has great anatomy as

0:52

well as a wealth of pathology.

0:54

And one way of organizing your thoughts with

0:58

regard to the pathology,

1:00

is using a mnemonic that was

1:02

taught to me by Stan Siegelman,

1:04

my former residency program director.

1:06

And that mnemonic is vitamin C and D,

1:09

and this stands for Vascular, Infectious,

1:13

Traumatic, Acquired, Metabolic, Idiopathic,

1:18

Neoplastic, Congenital, and Drugs.

1:21

So, when you're stuck with a lesion in the orbit,

1:24

you might want to think about vitamin C and D.

Report

Description

Faculty

David M Yousem, MD, MBA

Professor of Radiology, Vice Chairman and Associate Dean

Johns Hopkins University

Lesson

Orbital Imaging Protocols

Lesson

Orbit Anatomy

Lesson

Case Review - Ocular Pathology

Lesson

Case Review - Intraconal Pathology

Lesson

Case Review - Conal Lesions

Lesson

Case Review - Extraconal Injuries and Abnormalities

Lesson

Case Review - Orbital Appendage Pathology

Introduction to Imaging of the Orbits