Journal of the Korean Society of Radiology (대한영상의학회지)

The Korean Society of Radiology (대한영상의학회)
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Adnexal Masses: Clinical Application of Multiparametric MR Imaging & O-RADS MRI

난소-자궁부속기 종괴: 다중기법 MR 영상의 임상 적용과 O-RADS MRI

  • So Young Eom (Department of Radiology, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea) ;
  • Sung Eun Rha (Department of Radiology, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea)
  • 엄소영 (가톨릭대학교 의과대학 서울성모병원 영상의학과) ;
  • 나성은 (가톨릭대학교 의과대학 서울성모병원 영상의학과)
  • Received : 2021.06.14
  • Accepted : 2021.07.26
  • Published : 2021.09.01
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Abstract

Incidental adnexal masses considered indeterminate for malignancy are commonly observed on ultrasonography. Multiparametric MRI is the imaging modality of choice for the evaluation of sonographically indeterminate adnexal masses. Conventional MRI enables a confident pathologic diagnosis of various benign lesions due to accurate tissue characterization of fat, blood, fibrous tissue, and solid components. Additionally, functional imaging sequences, including perfusion- and diffusion-weighted imaging, improve the diagnostic efficacy of conventional MRI in differentiating benign from malignant adnexal masses. The ovarian-adnexal reporting and data system (O-RADS) MRI was recently designed to provide consistent interpretations in assigning risk of malignancy to ovarian and other adnexal masses, and to provide a management recommendation for each risk category. In this review, we describe the clinical application of multiparametric MRI for the evaluation of adnexal masses and introduce the O-RADS MRI risk stratification system.

초음파에서 우연히 접하는 자궁부속기 병변은 양성 병변이 더 흔하지만, 일부는 악성도가 애매한 병변으로 간주되어 추가적인 평가를 위해 다중매개변수 MRI가 필요하다. 고식적 MRI를 통해 해부학적 모양을 살피고, 지방, 출혈, 섬유성 조직, 고형성 조직 등 병변의 구성성분을 파악하여 많은 양성 종괴들을 정확하게 진단할 수 있다. 또한 추가적인 확산강조영상과 역동적 조영증강 기법의 관류영상으로 양성과 악성의 감별 진단 정확도를 높일 수 있다. 최근 자궁부속기 종괴의 악성 위험도를 평가하고, 각 위험도 군에 대한 적절한 조치를 권고하는데 있어 표준화된 의사소통이 가능하도록 하기 위해 난소-자궁부속기 MRI 보고 및 자료시스템(ovarian-adnexal reporting and data system MRI; 이하 O-RADS MRI)이 발표되었다. 본 종설에서는 자궁부속기 종괴의 악성도 예측 및 감별 진단을 위한 다중매개변수 MRI의 임상 적용과 O-RADS MRI에 대하여 기술하고자 한다.

Keywords

References

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