how to read radiolographs

12
HOW TO READ RADIOGRAPHS Mariam Alosfoor

Upload: mariam-alosfoor

Post on 15-Aug-2015

39 views

Category:

Education


3 download

TRANSCRIPT

HOW TO READ RADIOGRAPHSMariam Alosfoor

OBJECTIVES:-

Steps of correctly reading radiographs

Different techniques for taking radiographs

Radiological findings in the case

1 2 3 4 5

HOW TO READ A RADIOGRAPH?

Follow these steps

Type of Image

Anatomical part

Section Technique Lesion description

TYPE OF IMAGE

Magnetic Resonance Image (MRI)• Soft tissue, Brain tumors, Spine injuries,

Multiple sclerosis, Brain step lesions• Does not use radiation

Computed Tomography (CT scan)• Bone injuries, Chest, Cancer detection,

Brain hemorrhage • X-raysPositron Emission Tomography (PET scan) • Functional imaging• Cancer, Epilepsy, Heard disease• Radioactive materials

1

TECHNIQUE

With / Without contrast medium

Signal characteristics (MRI):

4

T1 T2

Black

AirBone

AirBone

Dark

CSFEdema

Tissue

Bright

FatBlood

Contrast medium

CSFBlood Edema

LESION DESCRIPTION

Anatomy

Exact location

Three dimensional size

Radiological Criteria

CT scan:

Isodense, hypodense, hyperdense.

MRI:

Isointense, hypointense, hyperintense.

Edema

Compression

Midline shift

Herniation

5

The Case

CT SCAN

The right sphenoidal sinus and cavernous sinus are filled with tissue. There is a destruction of osseous structures on the caudal and lateral side. Destruction of the skull base.

MRI

Irregular structure in the nasopharyngeal space with destruction of the skull base and ingrowth into the right cavernous sinus and into the pterygopalatinoid sinus.

PET SCAN

Any Questions?

Feel Free to Ask