유방 탄성초음파의 검사방법과 판독상의 주의점 = Elastography of the Breast: Imaging Techniques and Pitfalls in Interpretation

다국어 초록 (Multilingual Abstract)

Ultrasound (US) elastography is a tool that indicates the hardness of a lesion.
Recent studies using elastography with freehand compression have shown similar diagnostic performance to conventional US in differentiating benign lesions from malignant breast masses. On the other hand, the acquired information is not quantitative,and the reliability of the imaging technique to correctly compress the tissue depends on the skill of the operator, resulting in substantial interobserver variability during data acquisition and interpretation. To overcome this, shear wave elastography was developed to provide quantitative information on the tissue elasticity. The system works by remotely inducing mechanical vibrations through the acoustic radiation force created by a focused US beam. This review discusses the principles and examination techniques of the two types of elastography systems and provides practical points to reduce the interobserver variability or errors during data acquisition and interpretation.

국문 초록 (Abstract)

유방 탄성초음파는 조직의 경도를 영상화하는 검사법으로 가압에 의한 변형을 영상화하는 변형탄성방식과 집속음향을 가한후 발생하는 횡파의 속도를 계측하는 횡탄성방식으로 구분된다. 탄성초음파를 B-모드 초음파와 함께사용하면 유방종괴의 양성-악성 감별과 초음파의 특이도향상에 기여할 수 있다. 하지만 탄성초음파는 검사자의 숙련도에 따라 정확도가 달라질 수 있으므로 적정한 검사방법 및 판독법상의 주의점을 숙지하고 있어야 오진을 막을수 있다.

참고문헌 (Reference)

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