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准确的眼球内异物的诊断及定位是摘出手术成败的关键。常用的巴尔金氏定位法,对一般的金属异物尚可做出较准确的定位诊断,但对细小的及阴影较淡的异物,因有较多的颅骨影重叠,异物往往不易显影,易于漏诊。对这样的病例,最近我们学习了兄弟单位的好经验采用了薄骨定位法。此法可避免颅骨阴影的过多重叠,仅通过眶外壁这一较薄的骨板,所以眼眶范围内影像清晰,细小异物和阴影较淡的异物较易显示,可以提高细小眼球内异物的诊断率。本文报告的3例均属先做巴尔金氏定位法阴性,然后采用薄骨定位法才显影确诊的病例。
Accurate intraocular foreign body diagnosis and positioning is the key to the success or failure of surgery. Commonly used Barkin positioning method, the general metal foreign body can still make a more accurate diagnosis of the positioning, but for the small and shadow lighter foreign body, due to more skull overlap, foreign body often difficult to develop, easy to miss . For such cases, we recently learned the good experience of fraternal units using the thin-bone positioning method. This method can avoid excessive overlap of the skull shadow, only through the thin plate of the orbital wall, so the image within the orbital clear, small foreign body and the lighter the foreign body is easier to show, can improve the diagnosis of small eyeball foreign body rate. Three cases reported in this paper are first negative Barkin localization method, and then the use of thin-bone positioning imaging developed cases confirmed.