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T1 지도화 기법 심장 자기공명영상 추적 검사를 이용한 심장 아밀로이드증의 치료 반응 평가

Treatment Response Evaluation of Cardiac Amyloidosis Using Serial T1- and T2-Mapping Cardiovascular Magnetic Resonance Imaging

  • 손진우 (연세대학교 의과대학 세브란스병원 영상의학과) ;
  • 홍유진 (연세대학교 의과대학 세브란스병원 영상의학과)
  • Jinwoo Son (Department of Radiology and Research Institute of Radiological Science, Severance Hospital, Yonsei University College of Medicine) ;
  • Yoo Jin Hong (Department of Radiology and Research Institute of Radiological Science, Severance Hospital, Yonsei University College of Medicine)
  • 투고 : 2020.03.17
  • 심사 : 2020.06.16
  • 발행 : 2021.03.01

초록

아밀로이드증은 세포 외 공간에 비정상적인 단백질이 축적되는 것을 특징으로 하는 전신 질환이며, 심근을 포함한 다양한 기관을 침범한다. 저자들은 심장 아밀로이드증 환자에서 항암 화학 요법 및 줄기세포 이식 후 심장 자기공명영상의 추적검사에서 조영 전 T1 및 T2 수치와 세포 외 부피 분율의 감소를 보인 사례를 보고한다. 조영 전 T1 이완시간 및 세포 외 부피 분율은 아밀로이드증 환자에서 조직의 아밀로이드 축적 정도와 밀접한 관련이 있다. 이 사례를 통해 T1 지도화 심장 자기공명영상 기법이 심장 아밀로이드증의 치료 반응 모니터링에 비침습적이며 정량적인 도구로서 큰 역할을 할 수 있는 가능성을 확인할 수 있다.

Amyloidosis is a multisystemic disease characterized by the accumulation of abnormal proteins in extracellular spaces in various organs, with frequent involvement of the myocardium. We report a case of a patient who had cardiac amyloidosis with a trend of reduction in native T1 and T2 values and extracellular volume fraction on serial cardiac magnetic resonance imaging after chemotherapy and stem cell transplantation. The native T1 value and the extracellular volume fraction are closely associated with tissue amyloid burden in amyloidosis patients. This case demonstrated that cardiac magnetic resonance imaging may be used as a non-invasive and quantitative biomarker in the treatment monitoring of amyloidosis.

키워드

참고문헌

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