Imaging facility develops successful radiation dose reduction program

November 5, 2012

According to an article in the November issue of the Journal of the American College of Radiology, a medical imaging facility in San Diego, Imaging Healthcare Specialists, has implemented a successful radiation dose reduction program, reducing radiation exposure by up to 90 percent in some patients.

"In the past decade, there have been unparalleled technological advances and growth in , with many lives saved and more costly and avoided. This growth in CT imaging, however, has also been accompanied by an unavoidable increase in cumulative to the public," said John O. Johnson, MD, author of the article.

At Imaging Healthcare Specialists, a highly successful program of reduction was created, and dose savings of up to 90 percent have been achieved in select patients.

"Our primary focus was to reduce radiation dose for of the chest, abdomen and pelvis because these constitute the most frequent studies in our practice and those with the highest radiation dose. Ultimately, all imaging protocols were revised," said Johnson.

The following dose reduction strategies were developed over months of careful computed tomography (CT) dose adjustment and imaging analysis:

  • Decreased Peak Kilovoltage
  • Low-dose Automatic Dose Modulation
  • Decreased Length of Coverage
  • Pitch
  • Iterative Reconstruction and Noise Reduction Software
In addition, the imaging facility focused on limiting double scans and multiphase examinations; performing low-dose follow-up CT examinations; and the use of iterative reconstruction and noise reduction software. A low-dose strategy for CT-guided biopsies was also developed.

"To implement such a program requires dedication, leadership and commitment. Key components include a lead CT physician, a lead CT technologist, a CT applications specialist, a continuous and systems in place to educate staff members and audit compliance," said Johnson.

"It is possible to perform high-quality CT at a fraction of the radiation dose previously thought possible. Using a combination of dose reduction strategies with or without iterative reconstruction, risks can be minimized, thereby ensuring the health and welfare of our patients," he said.

Explore further: Experts offer pointers for optimizing radiation dose in chest CT

Related Stories

Experts offer pointers for optimizing radiation dose in chest CT

September 1, 2011
An article in the September issue of the Journal of the American College of Radiology summarizes methods for radiation dose optimization in chest computed tomography (CT) scans. Chest CT is the third most commonly performed ...

Community hospital implements successful CT radiation dose reduction program

August 1, 2011
In an effort to reduce the radiation dose delivered by computed tomography (CT) scans, staff at a community-based hospital developed a comprehensive CT radiation dose reduction program which has allowed them to reduce the ...

Experts offer pointers for optimizing radiation dose in pediatric CT

January 6, 2012
An article in the January issue of the Journal of the American College of Radiology summarizes methods for radiation dose optimization in pediatric computed tomography (CT) scans. Approximately seven to eight million CT examinations ...

Experts offer pointers for optimizing radiation dose in head CT

August 1, 2011
An article in the August issue of the Journal of the American College of Radiology summarizes methods for radiation dose optimization in head computed tomography (CT) scans. Head CT is the second most commonly performed ...

Use of dedicated pediatric imaging departments for pediatric CT reduces radiation dose

May 1, 2012
The use of a dedicated pediatric imaging department (with dedicated pediatric computed tomography (CT) technologists) for pediatric CT scans significantly reduces the radiation dose delivered to the patient, according to ...

Recommended for you

New therapeutic approach for difficult-to-treat subtype of ovarian cancer identified

July 24, 2017
A potential new therapeutic strategy for a difficult-to-treat form of ovarian cancer has been discovered by Wistar scientists. The findings were published online in Nature Cell Biology.

Immune cells the missing ingredient in new bladder cancer treatment

July 24, 2017
New research offers a possible explanation for why a new type of cancer treatment hasn't been working as expected against bladder cancer.

Shooting the achilles heel of nervous system cancers

July 20, 2017
Virtually all cancer treatments used today also damage normal cells, causing the toxic side effects associated with cancer treatment. A cooperative research team led by researchers at Dartmouth's Norris Cotton Cancer Center ...

Molecular changes with age in normal breast tissue are linked to cancer-related changes

July 20, 2017
Several known factors are associated with a higher risk of breast cancer including increasing age, being overweight after menopause, alcohol intake, and family history. However, the underlying biologic mechanisms through ...

Immune-cell numbers predict response to combination immunotherapy in melanoma

July 20, 2017
Whether a melanoma patient will better respond to a single immunotherapy drug or two in combination depends on the abundance of certain white blood cells within their tumors, according to a new study conducted by UC San Francisco ...

Discovery could lead to better results for patients undergoing radiation

July 19, 2017
More than half of cancer patients undergo radiotherapy, in which high doses of radiation are aimed at diseased tissue to kill cancer cells. But due to a phenomenon known as radiation-induced bystander effect (RIBE), in which ...

0 comments

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.