Sachdeva Shilpa, Udechukwu Nneka S, Elbelasi Hossam, Landwehr Kevin P, St Clair William H, Winkler Michael A
Department of Radiation Medicine, University of Kentucky Medical Center, Lexington, KY 40536, USA.
Department of Radiology, University of Kentucky Medical Center, 805 Rose Street, MN-104G, Lexington, KY 40536-0298, USA.
Radiol Case Rep. 2016 Nov 22;12(1):31-33. doi: 10.1016/j.radcr.2016.10.009. eCollection 2017 Mar.
Brachytherapy consists of placing radioactive sources into or adjacent to tumors, to deliver conformal radiation treatment. The technique is used for treatment of primary malignancies and for salvage in recurrent disease. Permanent prostate brachytherapy seeds are small metal implants containing radioactive sources of I-125, Pd-103, or Cs-131 encased in a titanium shell. They can embolize through the venous system to the lungs or heart and subsequently be detected by cardiovascular computed tomography. Cardiovascular imagers should be aware of the appearance of migrated seeds, as their presence in the chest is generally benign, so that unnecessary worry and testing are avoided. We report a case of a patient who underwent brachytherapy for prostate cancer and developed a therapeutic seeds embolus to the right ventricle.
近距离放射治疗是将放射源放置在肿瘤内部或附近，以进行适形放射治疗。该技术用于原发性恶性肿瘤的治疗以及复发性疾病的挽救治疗。永久性前列腺近距离放射治疗种子是小的金属植入物，包含封装在钛壳中的碘-125、钯-103或铯-131放射源。它们可通过静脉系统栓塞至肺或心脏，随后可通过心血管计算机断层扫描检测到。心血管成像人员应了解迁移种子的表现，因为它们在胸部的存在通常是良性的，从而避免不必要的担忧和检查。我们报告一例接受前列腺癌近距离放射治疗并发生治疗性种子栓子至右心室的患者。
