What does the term 'resolution' refer to in sonography?

In sonography, the term 'resolution' specifically refers to the detail present in the images produced by the ultrasound. High resolution indicates that the images are clear, with distinct and well-defined structures, allowing for better visualization of anatomical features and pathology. This detail is crucial for accurate diagnosis and assessment of the condition being examined, as it affects the ability to differentiate between different tissues, identify abnormalities, and guide clinical decision-making.

Resolution in ultrasound can be influenced by several factors, including the frequency of the ultrasound transducer, the quality of the imaging equipment, and the technique used during the examination. Higher frequency transducers generally provide better resolution images but have limited depth of penetration, while lower frequency transducers may penetrate deeper but at the expense of image detail. Understanding resolution helps sonographers optimize their images for the best diagnostic outcomes.