Diagnostic Scans Tied to Radiation Risk for Gastro Patients

FRIDAY, April 6 (HealthDay News) — Patients with digestive
disorders such as inflammatory bowel disease may be exposed to significant
levels of radiation from diagnostic imaging tests, a new study
suggests.

Irish researchers analyzed data from 2,590 patients with
gastrointestinal disorders between 1999 and 2009, and found that 57
percent of them had undergone diagnostic imaging tests such as computed
tomography (CT) imaging.

Higher yearly and total levels of diagnostic radiation exposure were
seen in patients with such conditions as inflammatory bowel disease,
celiac disease, fatty liver disease and benign liver cysts, as well as in
younger patients with irritable bowel syndrome and unexplained abdominal
pain syndrome.

The study appears in the April 1 online edition of the journal
Clinical Gastroenterology and Hepatology.

“Our results show that significant increases in radiation exposure in
the last decade have paralleled the increased use of computed tomography
imaging,” lead author Alan Desmond, of the Cork University Hospital, said
in a news release from the American Gastroenterological Association.
“While cumulative exposure is highest in patients with Crohn’s disease,
high exposure may also occur in patients with other gastrointestinal
disorders.”

Crohn’s disease is a major form of inflammatory bowel disease, along
with ulcerative colitis.

Diagnostic imaging with CT does benefit patients with gastrointestinal
tract disorders, especially those with Crohn’s disease, who often require
abdominal imaging to assess the extent of their disease and detect
complications, the researchers noted.

However, CT uses higher levels of radiation than other imaging
technologies and more widespread use of CT has led to increased patient
exposure to radiation. This has raised concerns because radiation exposure
may increase a person’s lifetime risk of cancer, especially in younger
patients.

More information

The American College of Radiology, Radiological Society of North
America has more about radiation exposure in X-ray and CT examinations.

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