비파괴검사학회지 (Journal of the Korean Society for Nondestructive Testing)

  • 제32권5호
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  • Pages.573-584
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  • 2012
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  • 1225-7842(pISSN)
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  • 2287-402X(eISSN)
한국비파괴검사학회 (The Korean Society for Nondestructive Testing)
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의료용 초음파탄성영상법

Medical Ultrasonic Elasticity Imaging Techniques

  • Jeong, Mok-Keun (Department of Electronics and Communications Engineering, Daejin University)
  • 투고 : 2012.08.30
  • 심사 : 2012.09.28
  • 발행 : 2012.10.30
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⟨ 이전 논문 다음 논문 ⟩

초록

유방이나 전립선과 같은 연조직에서 발생하는 암이나 종양은 주위 조직보다 단단한 경향을 가진다. 하지만 초음파 B-mode 영상을 보면 암은 주위 조직과 거의 비슷하여 구별하기 어렵다. 따라서 조직의 단단한 정도를 영상화하면 더 정량적인 정보를 제공해 진단에 도움을 줄 수 있다. 초음파탄성영상은 측정하고자 하는 연조직에 기계적인 힘을 가하고 변형된 정도를 측정하여 영상화 한다. 탄성영상은 기존의 초음파 영상 진단기법과 더불어 종양을 진단하는 유용한 방법으로 자리매김하고 있다. 본 논문에서는 지금까지 발표된 다양한 탄성영상 방법을 분류하고 각 방법의 원리, 특성 등을 살펴본다.

Breast and prostate tumors or cancers tend to be stiffer than the surrounding normal tissue. However, the difference in echogenicity between cancerous and normal tissues is not clearly distinguishable in ultrasound B-mode imaging. Thus, imaging the stiffness contrast between the two different tissue types helps to diagnose lesions quantitatively, and such a method of imaging the elasticity of human tissue is termed ultrasound elasticity imaging. Recently, elasticity imaging has become an effective complementary diagnostic modality along with ultrasound B-mode imaging. This paper presents various elasticity imaging methods that have been reported up to now and describes their characteristics and principles of operation.

키워드

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