1. Learn appropriate breast positioning
2. Understand the effects of varying breast thickness on radiation exposure
3. Understand the effects of compression on image quality
4. Understand potential effects on diagnosis due to breast malpositioning
1. Review of correlation between breast positioning and the effect of the compressed breast thickness
2. Review of the effects of varying breast thickness on radiation exposure for various acquisition techniques (e.g., CC, MLO, tomosynthesis)
3. Description of the effects of compression on image quality (e.g., why some subtle tumors are better visualized)
4. Present of clinical cases demonstrating potential effects on diagnosis due to breast malpositioning.
Summary: Breast positioning varies breast thickness (compression) as well as density (spread out) therefore automatically changes acquisition parameters. It is imperative for reducing radiation exposure and achieving quality images. There are certain basic rules to follow for good positioning. This overview will help the radiologist understand the relationship between breast positioning, radiation exposure and image quality, and the effects on diagnosis by demonstrating these effects with phantom experiments and presenting a clinical case.
Zhang, J,
Luna, A,
Szabunio, M,
Relationship between Positioning, Radiation Exposure, Imaging Quality and the Effects on Diagnosis for Breast Imaging. Radiological Society of North America 2014 Scientific Assembly and Annual Meeting, - ,Chicago IL.
http://archive.rsna.org/2014/14014478.html