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目的:探讨CT低剂量扫描在成人肺结核复查随访中的应用价值。方法:收治复查的继发性肺结核患者800例,随机分成单排螺旋CT组、6排螺旋CT组、16排螺旋CT组和GE64排螺旋CT组,比较检查结果。结果:扫描图像质量差异无明显统计学意义(P>0.05),使用单排、6排、16排CT和64排CT扫描患者接受的剂量差异无明显统计学意义(P>0.05)。使用低剂量扫描,降低了60%~80%,患者接受的容积CT剂量指数明显低于常规扫描。结论:低剂量CT扫描可以显著降低辐射量,对诊断报告无显著性影响。
Objective: To investigate the value of CT low-dose scanning in the follow-up of adult pulmonary tuberculosis. Methods: One hundred and eighty patients with secondary pulmonary tuberculosis admitted to our hospital were randomly divided into single-slice spiral CT group, six-row spiral CT group, 16-slice spiral CT group and GE64 row spiral CT group. The results were compared. Results: There was no significant difference in the quality of the scanned images (P> 0.05). There was no statistically significant difference in the dose of single row, six rows, 16 rows CT and 64 rows CT scan (P> 0.05). The use of low-dose scanning, reduced by 60% to 80%, patients received volume CT dose index was significantly lower than conventional scanning. Conclusion: Low-dose CT scan can significantly reduce the amount of radiation, no significant impact on the diagnostic report.