Radiologists back judicious use of CT pulmonary angio in women because of radiation dose to breast

Radiologists are encouraging their colleagues to think twice and consider alternatives before using CT in the diagnosis of pulmonary embolism in women under the age of 55 because of the radiation dose of these examinations.

Chest CT plays a critical role in the diagnosis and management of most patients with complex thoracic and cardiopulmonary disease, and has become the gold standard for imaging pulmonary emboli, said Mark S. Parker, MD, associate professor of thoracic imaging at the Medical College of Virginia Hospitals, Virginia Commonwealth University Medical Center. However, the potential carcinogenic effects of ionizing radiation on radiosensitive tissues such as the female breast are often not deemed relevant to acute patient care. The latency period for potential cancer induction is estimated to be 10-30 years in the dose ranges used in CT pulmonary angiography. Thus, the younger the patient is at the time of exposure, the more radiosensitive the fibroglandular tissue, and the more time the patient has to develop potential nonfatal and fatal cancers, Dr. Parker said.

"We recently studied 1,325 patients who had undergone CT pulmonary angiograms; 60% of the patients were women--some of them as young as 15 years old," said Dr. Parker. The mean age of the female patients was 52.5 years. "We found that the calculated dose to the breast tissue of an average-sized woman during a CT pulmonary angiography examination was at least 2.0 rads per breast. The radiation dose to the breast from these examinations is equivalent to10-25, two view mammograms, or 100-400 chest radiographs. The estimated radiation dose is two to three times greater with techniques that employ overlapped scanned regions of interest (i.e., nonenhanced and enhanced scans), and 30-50% greater with the newer multidetector CT (MDCT) scanners, Dr. Parker added. One millisievert (mSv) of radiation exposure may be associated with five additional cancers in 100,000 exposed patients, he

Contact: Keri Sperry
American Roentgen Ray Society

Page: 1 2

Related medicine news :

1. Radiologists offer non-surgical treatment for early-stage liver cancer
2. Radiologists use MRI to keep basketball players on their feet
3. Radiologists interpretation of mammograms varies widely
4. Learning From Experience: New Pattern Recognition & Detection Helps Radiologists Analyze Digital Mammograms
5. No increase in deaths for heart failure patients with pulmonary artery catheter
6. Chest 2004 hosts world experts in pulmonary, sleep, and critical care medicine
7. Bone marrowderived stem cells active in pulmonary fibrosis
8. Viagra for alleviation of pulmonary hypertension?
9. Drug improves survival in primary pulmonary hypertension patients
10. New study explores pulmonary rehabilitation in women with emphysema and chronic bronchitis
11. Myocarditis plus pulmonary hypertension means transplant sooner

Post Your Comments:

(Date:1/23/2020)... ... ... SignatureCare Emergency Center is set to expand to North Dallas with the opening ... heart of Lewisville, on 1596 W. Main St., Lewisville, TX 75067, the new location ... , It will serve residents and businesses around Lewisville, TX, including Double Oak, Copper ...
(Date:1/23/2020)... Okla (PRWEB) , ... January 23, 2020 , ... ... partnered with RespirCare, LLC, a first-of-its-kind, full-service pulmonology clinic based in Tulsa, to ... Under the agreement, MCNDOH patients will also have access to HGE Health’s digital ...
(Date:1/23/2020)... ... 2020 , ... Let’s face it; the holidays were a stressful time, a ... and secrets were revisited. It’s easy to understand why many folks prefer to duck ... families, the holidays posed additional stress for which there is no “cookie-cutter” solution. , ...
(Date:1/23/2020)... ... January 23, 2020 , ... Merger and acquisition activity in the Physician Medical ... according to data from HealthCareMandA.com. The total is the lowest reported in the previous ... deals were announced. , One deal disclosed a price in the fourth quarter of ...
(Date:1/23/2020)... ... January 23, 2020 , ... MemoryCare.com , a ... the Best Memory Care Facilities in Pensacola, Florida. The guide identifies 7 memory ... , According to the Alzheimer’s Association , 5.6 million people age 65 ...
Breaking Medicine News(10 mins):
(Date:1/23/2020)... ... January 23, 2020 , ... “It’s complicated.” The phrase ... architecture providing function to a person’s hand, wrist, arm and shoulder. “Which is ... surgeon -- when anything goes wrong up or down this superhighway of interconnected ...
(Date:1/22/2020)... SHIRLEY, N.Y. (PRWEB) , ... January 22, 2020 ... ... of its new Biodex Advantage BX software to U.S. customers. A total redesign ... System 4 Dynamometer with more streamlined functionality and intuitive navigation, while maintaining the ...
(Date:1/22/2020)... FRANKLIN, Tenn. (PRWEB) , ... January 22, 2020 ... ... provider of test automation solutions and technical services exclusively to the healthcare industry, ... firm to establish a comprehensive test automation program for its Epic EHR. SIH ...
Breaking Medicine Technology:
Cached News: