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Medicineworld.org: Angled gantry technique reduced breast radiation exposure

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Angled gantry technique reduced breast radiation exposure




A novel angled gantry approach to coronary CT angiography reduced radiation exposure to the breast by more than 50%, as per Thomas Jefferson University researchers.

Ethan Halpern, M.D., associate professor of Radiology at Jefferson Medical College of Thomas Jefferson University in Philadelphia, presented the research at the 94th Scientific Assembly and Annual Meeting of the Radiological Society of North America.

"Radiation dose to the breast during coronary CT is particularly a concern for young women as the dose may increase the risk for breast cancer," Dr. Halpern said. "Physicians are working diligently to reduce the patient radiation dose correlation to coronary CT".



Angled gantry technique reduced breast radiation exposure

Dr. Halpern and his colleagues retrospectively evaluated 100 consecutive coronary CT angiography images that were obtained with a 64 detector helical scanner. They reviewed sagital images to: 1) define the position of the breasts and the gantry angulation mandatory to perform a CT examination parallel to the long axis of the heart; and 2) determine the reduction in breast exposure to radiation that might be accomplished by imaging the heart with an angled gantry acquisition.

The standard axial imaging plane for coronary CT angiography mandatory a 6.5cm.

1.8 cm. overlap with the lower breast. The overlap with the lower breast using the angled scan was reduced in half to 3.2 cm 1.6 cm (P<0.001).

"Angled gantry is a feasible technique for coronary CT angiography that reduces radiation exposure to the breast by 50%," Dr. Halpern said. "These results warrant the development of machines that can perform this technique".


Posted by: Janet    Source




Did you know?
A novel angled gantry approach to coronary CT angiography reduced radiation exposure to the breast by more than 50%, as per Thomas Jefferson University researchers. Ethan Halpern, M.D., associate professor of Radiology at Jefferson Medical College of Thomas Jefferson University in Philadelphia, presented the research at the 94th Scientific Assembly and Annual Meeting of the Radiological Society of North America.

Medicineworld.org: Angled gantry technique reduced breast radiation exposure

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