St. Elizabeth’s Medical Center Offers Low-Dose CT Imaging

Tuesday, March 05, 2013

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Low-dose CT imaging reduces radiation exposure for critical diagnostic testing

St. Elizabeth’s Medical Center, a member of Steward Health Care and a teaching affiliate of Tufts University School of Medicine, has begun to offer patients routine low-dose CT imaging that reduces the radiation exposure to patients during these critical tests. 

The low-dose CT scans are performed on existing Philips CT imaging systems, including the state-of-the-art 256 detector iCT system installed in the St. Elizabeth’s Emergency Department. These CT scanners are some of the country’s first to have Philips’ advanced technology installed to create the same high-quality images while exposing the patient to much lower levels of radiation than would have been possible previously. Patients receiving their care in the emergency department, outpatient and inpatient settings now all benefit from this investment in patient safety and quality. Initial results from the new technology have shown that patients experience up to a 59 percent reduction in dose length product (DLP).

By investing in these upgrades, St. Elizabeth’s continues to deliver exceptional patient care in a compassionate environment, through a modern inpatient and outpatient facility. 

“Patients may not think about radiation dosing when undergoing a CT scan, nor should they, since we strive only to perform tests that are necessary to care. However, our patients at St. Elizabeth’s can rest assured knowing that they are accessing the best available dose reduction technology while obtaining crucial diagnostic information,” said Sanjay K. Shetty, MD, chairman of Radiology for St. Elizabeth’s Medical Center. “CT radiation dose reduction has always been a priority at St. Elizabeth’s, and we were one of the first institutions nationally to participate in the Dose Index Registry to benchmark our performance. This technology places us at the forefront and will allow us to accelerate dose reduction efforts for our patients.”   

In addition, the upgrade includes a new method that helps correct imaging for patients with large metal implants, which in the past could obscure adjacent abnormalities. This upgrade further improves imaging capabilities in CT.

For more information, please contact the Department of Radiology at 617-789-2740.

About St. Elizabeth’s Medical Center
St. Elizabeth’s Medical Center is a major academic medical center affiliated with Tufts University School of Medicine.  Areas of medical excellence include cardiology, neurosciences, general and robotic surgery, bariatric surgery, women’s health, high-risk obstetrics, bone and joint health, hematology/oncology, pulmonary medicine and emergency medicine.  St. Elizabeth’s is a member of Steward Health Care, which is the second largest health care system in New England.  Visit St. Elizabeth’s online at


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