Comparison of CT scanning and X ray in measuring the volume of the effusion for the cavity caused by pulmonary tuberculosis or lung carcinoma
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摘要:
目的对比胸部CT扫描与X线平片对肺结核及肺癌空洞积液量的测量差异。 方法收集同时进行X线胸片及胸部增强CT扫描确诊空洞并积液的肺结核及肺癌患者患者各36及32例，均在CT引导下行积液穿刺，对比3种测量方法下的积液量差异。 结果结核及癌性空洞患者均表现为胸部增强CT所测得的积液量明显较X线平片多（P < 0.05），且穿刺实际所抽出积液量同样较X线平片多（P < 0.05），但胸部CT所测积液量与穿刺所得无统计学差异。 结论对于同一患者在同一时间点，胸部CT增强扫描所测得的空洞积液量更加接近实际体积，提示CT的测量精度更高。 Abstract:ObjectiveTo compare the CT scanning and χ ray in measuring the volume of the effusion for the cavity caused by pulmonary tuberculosis or lung carcinoma. MethodsWe collected simultaneous χ-ray sternum and breast enhancement CT scan confirmed empty and effusion of the 36 and 32 patients with tuberculosis and lung cancer patients, both in CT guiding effusion puncture, compare the three methods of measuring the amount of effusion. ResultsThe tuberculosis hole and cancer patients were measured by enhanced CT chest effusion quantity more obvious than χ-ray plain film (P < 0.05), and piercing actual amount drawn effusion more equally than χ-ray plain film (P < 0.05), but the chest CT and the quantity measured effusion puncture income no statistical difference. ConclusionFor patients with the same point at the same time, the chest CT enhanced scan cavity effusion quantity closer to actual measured by volume, prompt CT measurement precision was higher. -
Key words:
- tuberculosis /
- lung cancer /
- empty /
- Chest CT enhanced scan /
- χ-ray plain film
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表 1 不同类型空洞积液体积比较
病变类型 结核空洞积液体积
(ml, n=36)癌性空洞积液体积
(ml, n=32)X线平片 63.57±10.84# 46.27±8.91# 胸部CT增强扫描 84.72±13.69* 62.34±11.07* 穿刺 81.14±11.98* 59.19±10.52* F -5.991 -4.126 P 0.013 0.021 与X线平片比较，*P < 0.05；与穿刺抽液比较，#P < 0.05. 
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