Anteby I I, Pe'er J
Department of Ophthalmology, Hadassah University Hospital, Jerusalem, Israel.
Ophthalmic Surg Lasers. 1996 Dec;27(12):1024-9.
Plaque positioning is of utmost importance for the effective treatment of intraocular lesions. The authors' objective was to verify the position of ruthenium plaques after surgical placement.
The authors studied the positions of ruthenium-106 (Ru-106) plaques in 43 patients treated for choroidal tumors by B-scan echography on the first postoperative day.
In 29 of 43 eyes (67.4%) the episcleral plaque was found to be well centered 1 day after surgery. Ten eyes (23.3%) had borderline-placed plaques, and the remaining 4 (9.3%) plaques were malpositioned. All the malpositioned plaques were situated behind posterior tumors whose uncovered edge was adjacent to the optic nerve.
Ultrasonic verification in the postoperative period is essential to detect inadvertent misplacement or displacement of radioactive plaques. Plaque replacement or additional and modified treatment can be considered for those plaques found to have moved after the surgical placement.
斑块定位对于眼内病变的有效治疗至关重要。作者的目的是验证手术植入后钌斑块的位置。
作者通过术后第一天的B超检查研究了43例接受脉络膜肿瘤治疗患者的钌 - 106（Ru - 106）斑块位置。
43只眼中有29只（67.4%）在术后1天巩膜上的斑块位置良好居中。10只眼（23.3%）的斑块位置处于临界状态，其余4只眼（9.3%）的斑块位置不当。所有位置不当的斑块都位于后部肿瘤后方，其未覆盖的边缘与视神经相邻。
术后超声检查对于检测放射性斑块的意外误置或移位至关重要。对于那些在手术植入后发现移动的斑块，可以考虑更换斑块或进行额外的改良治疗。
