Bowel Cancer_Tests and Investigations

Test & Investigations

If your doctor suggests that you are referred for further investigations, this does not mean you have bowel cancer.
 
It means that further tests are needed to clarify what is causing your symptoms.
 
If you have several higher-risk symptoms which could be suspected bowel cancer, you should receive an urgent referral and have a colonoscopy within 30 days.
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Prevention BowelScreen Australia 770

Bowel Cancer Screening Test

Bowel cancer screening involves a test for bowel cancer in people who do not have any obvious symptoms of the disease.
 
Bowel cancer can develop without any early warning signs.  The cancer can grow on the inside wall of the bowel for several years before spreading to other parts of the body.
 
Often very small amounts of blood, invisible to the naked eye, leak from these growth and pass into bowel movements before any symptoms are noticed.
 
A bowel cancer screening test called a Faecal Immunochemical Test (FIT) can detect these small amounts of blood in bowel movements.
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Bowel Cancer Australia Advocacy Emerging Technologies 770

Bowel Cancer Blood & DNA Tests

In August 2014, the US Food and Drug Administration (FDA) approved Cologuard, the first stool-based bowel cancer screening test that detects the presence of red blood cells and DNA mutations that may indicate the presence of certain kinds of abnormal growths that may be cancers such as bowel cancer or precursors to cancer.
 
In May 2014, Australian researchers presented at an international medical conference in Chicago, Digestive Diseases Week, that the ColoVantage Plasma blood test for bowel cancer could detect 65% of bowel cancer cases increasing to 73% for cancers that are stage II or higher.
 
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About Bowel Cancer Bowel-Preparation 770newfinal

Bowel Preparation

Bowel preparation to thoroughly empty and clean the bowel is required before a colonoscopy so the doctor has optimal vision and can closely examine the bowel wall.
 
This provides the best opportunity to accurately identify polyps or cancerous lesions during the procedure.
 
A two-step process of bowel preparation is normal.
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About Bowel Cancer-Barium-Enema 770new

Barium Enema

A barium enema is a series of x-rays of the lower gastrointestinal tract.
 
The patient lies on an x-ray table and a liquid that contains barium (a silver-white metallic compound) is put into the rectum.
 
The barium flows through the colon and coats the lower gastrointestinal tract.
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About Bowel Cancer-Sigmoidoscopy 770

Sigmoidoscopy

A procedure to look inside the rectum and sigmoid (lower) colon (the first 60cm of the bowel) for polyps, abnormal areas, or cancer.
 
A sigmoidoscope is inserted through the anus and rectum into the lower part of the colon (sigmoid colon).
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About Bowel Cancer-Colonoscopy 770

Colonoscopy

A procedure to look inside the bowel (rectum and colon) for polyps, abnormal areas, or cancer.
 
A colonoscope is inserted through the anus and rectum and into the colon.
 
A colonoscope is a thin, tube-like instrument with a light and a lens for viewing.
 
It may also have a tool to remove polyps or tissue samples, which are checked under a microscope for signs of cancer.
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Tests MRI 770new

Virtual Colonoscopy & Magnetic Resonance Imaging (MRI)

Virtual colonoscopy (also known as Computerised tomographic colonography - CTC) is a procedure that uses a series of advanced imagaing that permits minimally invasive evaluation of the colon and rectum without the need to sedation.
 
A computer puts the pictures together to create detailed images that may show polyps and anything else that seems unusual on the inside surface of the bowel.
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  • icon Tests & InvestigationsAdvantages - Disadvantages
  • icon Bowel Screening TestFaecal Immunochemical Test
  • icon Emerging TechnologyBlood & DNA Stool Tests
  • icon Bowel PreparationClearing the Bowel
  • icon Barium EnemaX-rays of the Lower GI Tract
  • icon SigmoidoscopyExamines the Sigmoid Colon
  • icon ColonoscopyExamines the Entire Colon
  • icon Virtual ColonoscopyMagnetic Resonance Imaging