Pohl Maximilian, Nakrour Nabih, Aswani Yashant, Ghosh Soumyadeep, Pohl Klara, Elshikh Abdelrahman, Yatin Mankan, Cochran Rory L, Fuchsjaeger Michael, Harisinghani Mukesh
Massachusetts General Hospital, Harvard Medical School, Boston, United States.
Medical University of Graz, Graz, Austria.
Abdom Radiol (NY). 2025 Apr 5. doi: 10.1007/s00261-025-04922-y.
Since its approval by the United States Food and Drug Administration (FDA), the rectal hydrogel spacer system SpaceOAR (SpaceOAR™ and Space-OAR Vue™, Boston Scientific Corporation, Marlborough, Massachusetts, United States) has become widely adopted in radiation therapy protocols for prostate cancer patients. The biodegradable hydrogel creates a temporary space between the prostate and rectum, thereby effectively reducing the radiation exposure to the anterior rectal wall. While the system is generally safe, potential complications can occur and should be recognized by radiologists. This pictorial review aims to familiarize radiologists with imaging features of SpaceOAR-related complications to ensure accurate diagnosis and reporting.
自美国食品药品监督管理局（FDA）批准以来，直肠水凝胶间隔系统SpaceOAR（SpaceOAR™和Space - OAR Vue™，美国马萨诸塞州马尔伯勒市波士顿科学公司）已在前列腺癌患者的放射治疗方案中广泛应用。这种可生物降解的水凝胶在前列腺和直肠之间形成一个临时空间，从而有效减少直肠前壁的辐射暴露。虽然该系统总体安全，但仍可能发生潜在并发症，放射科医生应予以识别。本图像综述旨在使放射科医生熟悉与SpaceOAR相关并发症的影像特征，以确保准确诊断和报告。
