Can PET scan be used instead of colonoscopy?
PET Scan More Effective than CT Scan in Detecting Colon Cancer Spread. According to results recently presented at the 2003 American Roentgen Ray Society Annual Meeting, a PET scan is significantly more accurate at detecting colon cancer metastasis than a CT scan.
What does restaging mean on PET scan?
Restaging is broadly defined to include the phase of the disease after initial diagnosis and treatment, which may entail local recurrence, distant metastatic disease, and assessment of response to treatments after disease recurrence.
Do colon polyps show on a PET scan?
The widespread use of FDG PET/CT will increase the number of adenomatous polyps detected. Hence, it is important to recognize that such polyps can be found incidentally with PET/CT and need to be investigated further by colonoscopy.
What is the procedure for PET scan?
During a positron emission tomography (PET) scan, you lie on a narrow table that slides into a doughnut-shaped hole. The scanner takes about 30 minutes to produce detailed images of metabolic activity in your tissues and organs.
Does a CT scan show colon?
CT colonography, also known as virtual colonoscopy, uses low dose radiation CT scanning to obtain an interior view of the colon (the large intestine). This area is otherwise only seen with a more invasive procedure where the doctor inserts an endoscope into the rectum and passes it through the entire colon.
What does indication restaging mean?
Listen to pronunciation. (ree-STAY-jing) A process used to find out the amount or spread of cancer in the body if it comes back or gets worse after treatment.
What is the meaning of restaged?
Definition of restage transitive verb. : to stage (something) again The play was restaged abroad.
Why have a colonoscopy after a CT scan?
Computed tomography (CT) scans are commonly used to diagnose acute diverticulitis, but there are overlapping features between diverticulitis and colorectal cancer (CRC) on imaging studies. Hence, colonoscopy is typically recommended after an episode of acute diverticulitis to rule out underlying malignancy.
Is PET scan painful?
A PET-CT scan does not hurt. But some positions might be uncomfortable or tiring. You need to lie still for the entire scan. You might also need to keep your arms above your head.