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자기공명영상과 PET/CT를 중심으로 한 전립선 암의 영상 진단

Imaging Assessment of Primary Prostate Cancer, Focused on Advanced MR Imaging and PET/CT

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키워드

주제분류방사선과학

초록

전립선 암은 종양 영상 분야에서 가장 어려운 분야 중 하나이다. 술전 영상 검사를 통한 전립선 암의 발견(detection), 정위 (localization) 그리고 병기결정(staging)은 여전히 영상의학과 의사의 도전이 필요한 분야이다. 자기공명 영상은 우수한 연부 조직 대조를 보이며 여러 고형 장기의 영상에 널리 쓰이나, 전립선의 술전 자기공명영상의 결과는 기대에 미치지 못한다. 전산화단층촬영 영상과 결합된 양전자방출단층촬영술 (PET/CT)은 종양 영상의 발달에 획기적인 기여를 하였으나, 전립선암의 평가에는 어려움이 많다. 최근에 이러한 불충분한 정확도를 극복하기 위하여 발전된 자기공명 영상 기법과 PET/CT을 이용한 전립선암 영상에 대한 연구들이 발표되었다. 본 종설에서는 새로운 기법의 자기 공명 영상과 PET/CT 영상을 중심으로 전립선암의 다양한 영상 기법과 그 소견을 살펴볼 것이다.

Abstract

Imaging assessment of prostate cancer is one of the most difficult sections of oncology imaging. Detecting, localizing and staging of the primary prostate cancer by preoperative imaging are still challenging for the radiologist. Magnetic resonance (MR) imaging provides excellent soft tissue contrast and is widely used for solid organ imaging, but results of preoperative imaging of the prostate gland with conventional MR imaging is unsatisfactory. Positron emission tomography and computed tomography (PET/CT) is the cornerstone in oncology imaging, but some limitations prohibit the assessment of primary prostate cancer with PET or PET/CT. Recent studies to overcome these insufficient accuracies of imaging evaluation of primary prostate cancers with advanced MR techniques and PET and PET/CT are reported. In this article, we review the imaging findings of prostate cancer on variable modalities, focused on MR imaging and PET/CT.

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