CT引导下经皮骨肿瘤穿刺活检术诊断率的相关因素分析

目的：探讨CT引导下经皮穿刺活检在骨肿瘤诊断中的价值,分析病变及技术因素对穿刺活检诊断率的影响。方法：2005年9月-2009年3月在CT引导下经皮活检的82例骨肿瘤。分析病变类型（硬化性、溶骨性）,病变大小（〈2 cm,2-4 cm,〉4 cm）,活检针的类型（14G、18G、20G）及标本组织长度（〈1.0 cm、1.0-1.5 cm,〉1.5 cm）对穿刺活检诊断率的影响。结果：68例经穿刺得到确切病理结果,诊断率为82.93%（68/82）,硬化性和溶骨型病变的诊断率分别是60.00%和88.06%。病灶大小〈2 cm、2-4 cm和〉4 cm的诊断率分别是58.33%、79.31%和92.68%。活检针类型14、18和20G的诊断率分别是72.73%、83.33%和85.11%。标本组织长度〈1 cm、1-2 cm、〉2 cm的诊断率分别是46.15%、64.58%和85.71%。所有病例均未发生严重并发症。结论：CT引导下经皮穿刺活检是诊断骨肿瘤的一种安全、准确、快捷、可靠的重要检查方法,在溶骨性病变、较大病变及较长标本组织中的诊断率高。

Related Factors of Diagnostic Yield of CT-guided Percutaneous Biopsy for Bone Tumors

Objective:To assess the value of CT-guided percutaneous biopsy for bone tumors and related factors of diagnostic yield.Methods:Between September 2005 and March 2009,82 consecutive CT-guided percutaneous biopsies of bone tumors were performed.The diagnostic yield was calculated for all lesions on the basis of lesion composition(sclerotic,lytic),lesion size(<2,2 to 4,or >4cm),biopsy needle gauge(14G,18G,or 20G) and specimen length(<1,1 to1.5,or >1.5cm).Results:The pathologic results of 68 cases were obtained ...