本文關(guān)鍵詞： 能譜CT 中心氣道腫瘤 肺部感染 病原菌　出處：《中華醫(yī)院感染學(xué)雜志》2016年05期 　論文類型：期刊論文

【摘要】：目的探討中心氣道腫瘤患者肺部感染病原菌分布特征及能譜CT的診斷,為感染的防治提供參考。方法回顧性分析2011年7月-2014年7月醫(yī)院收治的95例中心氣道腫瘤合并肺部感染患者臨床資料,分析感染患者病原菌特征;所有患者均行能譜CT平掃和動脈期增強掃描,觀察患者肺部感染病變及非感染性病變,采用平掃和增強動脈期40keV的CT值、碘含量、水含量及能譜曲線斜率。結(jié)果 95例感染患者分離出103株病原菌,其中革蘭陽性菌64株占62.1%,革蘭陰性菌35株占34.0%,真菌4株占3.9%;平掃時肺部感染性病變與非感染性病變間40keV的CT值、能譜曲線斜率、碘含量、水含量比較差異均無統(tǒng)計學(xué)意義;動脈期非感染性病變40keV的CT值、能譜曲線斜率、碘含量顯著高于感染性病變,差異有統(tǒng)計學(xué)意義(P0.05),感染性與非感染性病變水含量比較,差異無統(tǒng)計學(xué)意義。結(jié)論中心氣道腫瘤肺部感染的主要病原菌為革蘭陽性菌;能譜CT能夠?qū)Ω腥窘M織進行定性、定量分析,為疾病的診斷提供了一種新穎的影像學(xué)診斷方法。
[Abstract]:Objective to investigate the distribution of pathogenic bacteria of pulmonary infection in patients with central airway tumor and the diagnosis of energy dispersive CT (EDS). Methods the clinical data of 95 patients with central airway tumor complicated with pulmonary infection from July 2011 to July 2014 were analyzed retrospectively. All the patients were performed EDS plain scan and arterial phase enhanced scan. The pulmonary infection and non-infective lesions were observed. The CT value and iodine content of 40 Kev in the arterial phase were measured by plain scan and enhanced arterial phase. Results 103 strains of pathogenic bacteria were isolated from 95 infected patients. There were 64 Gram-positive bacteria (62.1%), 35 Gram-negative bacteria (34.0) and 4 fungi (3.9%). There was no significant difference in CT value, energy spectrum curve slope, iodine content and water content between pulmonary infectious lesions and non-infectious lesions during plain scan. The CT value, slope of energy spectrum curve and iodine content of 40 Kev in arterial non-infectious lesions were significantly higher than those in infective lesions, the difference was statistically significant (P 0.05), and the water content of infectious and non-infectious lesions was higher than that of non-infective lesions. Conclusion Gram-positive bacteria are the main pathogens of pulmonary infection in central airway tumors, and EDS CT can provide a novel imaging diagnosis method for the diagnosis of the disease by qualitative and quantitative analysis.
【作者單位】： 承德醫(yī)學(xué)院附屬醫(yī)院放射科;承德醫(yī)學(xué)院附屬醫(yī)院腫瘤科;承德醫(yī)學(xué)院附屬醫(yī)院呼吸科;承德醫(yī)學(xué)院附屬醫(yī)院藥學(xué)部;
【基金】：河北省衛(wèi)生廳醫(yī)學(xué)科學(xué)研究基金資助項目(ZD20140393)
【分類號】：R734.1;R730.44
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本文編號：1533846