Errors and artifacts in ultrasound elastography

Aim: We present our experience in ultrasound elastography, emphasizing the main sources of errors and artifacts and practical methods for minimizing them. Results and discussion: The principle of elastography is that tissue compression produces strain (displacement) within the tissue and that the strain is smaller in harder tissue than in softer tissue. Therefore, by measuring the tissue strain induced by compression, we can estimate tissue hardness, which may be useful in diagnosing cancer. Like any other ultrasound technique, elastography has its errors. During examination, we can obtain different grading on c…