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Transcript of PET/SPECT
Both a PET & SPECT are under the modality of nuclear medicine.
Both scans can be combined with other modalities (dual-modality) to obtain better images.
ex. SPECT-CT, PET-CT or PET-MRI
30-45min(PET) & 20-45min(SPECT)
How are we different from other tests?
PET shows functional information about the body. Most useful info required in dx and most appropriate tx provided by a PET. SPECT uses gamma rays to produce 3D images. Cross-sectional views of pt can be reformatted or manipulated prn.
PET- Positron Emission Tomography
SPECT- Single-Photon Emission Computed Tomography
What is a PET Scan?
Nuclear med. imaging test that creates images of the body function and metabolism. A radioactive sugar is given to the patient to obtain these images.
What is a SPECT Scan?
A radioactive dye(tracer) is given to a patient, then the SPECT machine takes a scan of your body. Pictures are taken of your internal organs and other structures as the machine rotates around you. The pictures are sent to a computer where a 3D image is created.
Diseases & Conditions (PET)
-Diagnose cancer & if tx is working
-if other tests are unclear a PET scan is used
-cancer has recurred or metastisized
-diagnose nervous system & cardiovascular diseases
Diseases & Conditions (SPECT)
- Brain disorders (ex. seizures/dementia)
> Clogged coronary arteries
> Reduced pumping efficiency
- Bone disorders
> Bone healing
> Cancer progression to bones
Patient Prep. (PET)
-Fast 4-6 hours (special instructions for diabetic pt's)
-wear clothing without metal zippers, buttons or belts
>may be asked to wear gown
-avoid caffeine, tobacco/alcohol & certain meds.
Patient Prep. (SPECT)
Depends on specific situation.
Generally, pt's should:
-remove all metalic jewellery
-tell tech if pregnant or breast feeding
-list of all meds and supplements you are on including herbal supplements and vitamins
Notify the dr if you are:
-allergic to latex, meds and/or iodine
-pregnant or suspect you may be
Do not consume any caffiene, alcohol or tobacco 24hours prior
-inform dr. of any allergies
-demented pt's monitored closely
-pt's w/neurological defect may require special care and close monitoring
-women breastfeeding asked to stop for certain period of time after exam & avoid close contact with young children
Hospital Tour Reference
In group 2 at Jim Patisson we saw a SPECT-CT machine, and were told a bit about the gamma camera and how it works to produce an image. Our group also saw the 3D image that is produced after the scan.
Thank You for Watching!!!!
We hope you enjoyed our prezi and are now ready for our in-class activity! :)
- Emily, Inisha, Ritika & Simone