Dose Reduction in Mammography

Posted on: 2022-06-07

This month’s Radiological Protection Study Group was held on May 9, with the theme “Dose Reduction in Mammography”. The presentation was led by physicist Rodrigo Trevisan Massera.

The presentation began with an overview of mammograms and breast cancer in Brazil, which has around 66,000 cases and 18,000 deaths. With early detection, there is a 30% increased chance of cure.

In order for the disease to be detected at an early stage, it’s necessary to perform imaging exams, such as ultrasound, magnetic resonance imaging, breast tomosynthesis, computed tomography and mammography – the latter being the most important.

Mammography has high spatial resolution and low energy X-ray spectrum; however, because of radiation, it’s important to have risk studies to reduce the dose. As this exam is essential to detect possible injuries, it’s necessary to talk about dose optimization.

This process analyzes the thickness, composition of the breast and the type of lesion, achieving a good image with a reduced dose.

Check all the analyzes and the conclusion carried out by Fís. Rodrigo in the full presentation, available soon on YouTube of the São Paulo Society of Radiology.

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