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术前区分孤立性肺结节(SPN)的良恶性具有重要意义。2年或2年以上肿物未生长扩大且存在钙化灶,是良性 SPN 的可靠判断标准。CT 检测钙化灶较普通胸部断层更为敏感.模型 CT 在其密度值测定方面具优越性,可获得重复性较好的结果。但以往对薄层 CT 和模型 CT 在发现 SPN 钙化灶方面的意见不一.作者就薄层 CT 和模型 CT 在 SPN 良恶性鉴别的敏感性方面作了研究。对象和方法对59例资料完整的 SPN 患者作了标准、薄层和模型 CT 检查。SPN 的选择主要包括边
Preoperative differentiation of solitary pulmonary nodules (SPN) of benign and malignant is of great significance. 2 years or more than 2 years tumor growth and the presence of calcification, is a reliable diagnostic criteria for benign SPN. CT detection of calcification is more sensitive than the common chest tomography model CT in the determination of its density has the advantage that better reproducible results can be obtained. In the past, however, there was disagreement on the detection of SPN calcifications by TLC and CT models, and the authors studied the sensitivity of thin-section CT and model CT in the identification of benign and malignant SPNs. Subjects and Methods Standard, thin-layer and model CT examinations were performed on 59 patients with well-documented SPN. The choice of SPN mainly includes edges