A 31-year-old member asked:
Disclaimer

what is the difference between a cat scan and pet scan?

4 doctor answers
Dr. Michael Korona
32 years experience Interventional Radiology
See : Radiologyinfo.Org.
Answered on Sep 28, 2016
Dr. Larry Wilf
33 years experience Nuclear Medicine
Physiology: A ct scan is a static picture of anatomy. A pet/ct scan also shows you how metabolically active the " anatomy" is ...
Answered on Apr 5, 2018
2
2 thanks
Dr. Joseph Accurso
28 years experience Radiology
Anatomy vs Physiolog: Ct scans look at the structure of the body, the anatomy, and the way diseases change or distort it. Pet looks at the physiology, or how the body uses, or metabolizes something. For pet, the most common metabolism pathway looked at is how glucose is used. A low dose ct is often acquired at the same time as the pet (as in pet/ct scan), to correlate the pet findings with the ct anatomy.
Answered on Dec 9, 2013
Dr. Gerald Mandell
51 years experience Nuclear Medicine
Anatomy / metabolism: CAT scan utilizes xrays for determination of anatomical structures in multiple planes coronal, sagittal, and transaxial. PET scan uses radioactivity with tracer FDG 18 a glucose metabolite to show metabolic areas . Usually malignant lesions are most active. Small metastatic lesions can be detected. Sometimes compared with anatomy with PT CT.
Answered on Nov 22, 2014

90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more. Get help now:

Ask doctors free
Personalized answers
Free
Talk to a doctor
Unlimited visits
$10/month

Related questions:

A 20-year-old female asked:
Dr. Harold Mandel
39 years experience General Practice
Not generally : Petting a rabid animal is not generally associated with risk for infection. People generally get rabies from the bite of a rabid animal. I therefore s ... Read More
A 33-year-old male asked:
Dr. Erik Maus
Dr. Erik Maus answered
24 years experience Undersea and Hyperbaric Medicine
Yes: A man asks about the risk of transmission of Hanta Virus from petting a mouse/cat. There is a belief that people may be able to get infected with the ... Read More
1
1 thank
A 24-year-old male asked:
Dr. Douglas Berson
37 years experience Allergy and Immunology
Reactions vary: Reactions can occur almost immediately especially if you touch your eyes. Sometimes a reaction can occur that is more delayed even after 6-8 hours and ... Read More
A 36-year-old member asked:
Dr. Justin Greiwe
11 years experience Allergy and Immunology
See Allergist: If you are concerned about cat allergy see an Allergist for further workup and evaluation. Treatments include non-sedating antihistamines, daily stero ... Read More

90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more. Get help now:

Ask doctors free
Personalized answers
Free
Talk to a doctor
Unlimited visits
$10/month