Loading presentation...

Present Remotely

Send the link below via email or IM

Copy

Present to your audience

Start remote presentation

  • Invited audience members will follow you as you navigate and present
  • People invited to a presentation do not need a Prezi account
  • This link expires 10 minutes after you close the presentation
  • A maximum of 30 users can follow your presentation
  • Learn more about this feature in our knowledge base article

Do you really want to delete this prezi?

Neither you, nor the coeditors you shared it with will be able to recover it again.

DeleteCancel

Make your likes visible on Facebook?

Connect your Facebook account to Prezi and let your likes appear on your timeline.
You can change this under Settings & Account at any time.

No, thanks

Medical Imaging Technology

No description
by

Nicole Wilson

on 21 September 2013

Comments (0)

Please log in to add your comment.

Report abuse

Transcript of Medical Imaging Technology

Medical Imaging Technology
Introduction
MRI
CAT scan
PET scan
Sonogram
Radiography
Molecular Imaging
Endoscopy Techniques

Diagnosis Through Medical Imaging
Magnets
and
radio waves

Used to diagnose patients by capturing a "slice" (a single MRI) of the body
Pros: No radiation; no side effects from magnetic field or contrast dye
Cons: implants and pacemakers could be damaged; metal in the body could shift; tight space; 30 to 60 min.
Magnetic Resonance Imaging
Radiologists
Radiographers
Medical Physicists
Biomedical Engineers
*Same as a CT Scan

X-rays create detailed pictures of
cross-sections
of the body
Slices can be stacked to create 3D image
Pro: scan lasts only a few minutes
Cons: emits radiation; allergic reaction to contrast dye (reaction: anaphylaxis)
Computed Axial Tomography
Used to see HOW organs and tissues are working (size, shape, funtion)
Tracer
in blood
Pros: Radiation is gone in 2 to 10 hours ("short lived tracer"); demonstrates change over time
Cons: False results for diabetic patients; radiation
Positron Emission Tomography
blog.image32.com/
newsroom.ucla.edu
Uses high-fr
equency sound waves to
view internal structures
Transducer
(emits sound waves and captures return);
Ultrasound
machine creates images
Pros: No radiation; no risks, little discomfort
Cons: images are less detailed than other imaging tools (movement sensitive)
Sonogram
(Ultrasound)
webeye.ophth.uiowa.edu
Electromagnetic radiation (visible light)
Movement-sensitive
Pros: minimum radiation, little discomfort
Cons: radiation exposure (risky for infants)
Radiography
(X-Ray)
How It Works
Dense structures appear white because they block particles

Metal and contrast appears white

Air appears black

Muscle, fat and fluid are grey
When X-ray particles pass through the body . . .
franciscanhammondclinic.org
Radioactive material (radio tracers) enters into the body
Special cameras follow the tracer
Pros: details of function (PET)
Cons: time consuming, lower resolution than CT/MRI, exposure to radiation
Molecular Imaging
(Nuclear Medicine)
Endoscopy
Small camera attached to end of slender, flexible tube
Type of procedure named after organ area
Sedation to lessen discomfort
Pros: shows live feed of appearance and function; also can be used to remove tumors or stop bleeding
Cons: Risks (bleeding, infection, pain, perforation of tissue)
http://66.208.12.121/discovermi2/index.php
commons.wikimedia.org
neuroradiologycases.com
webeye.ophth.uiowa.edu
Sources:
http://www.nlm.nih.gov/medlineplus/encyclopedia.html

http://www.who.int/diagnostic_imaging/en/

http://www.radiologyinfo.org/en/info.cfm?pg=gennuclear
Full transcript