低剂量CT扫描在AIDS合并肺孢子菌肺炎的应用探讨

Investigation on the application of low-dose CT scan in AIDs by pneumoeystis pneumonia

目的探讨低剂量胸部CT扫描在AIDS合并肺孢子菌肺炎患者的应用。方法选择我院2010年1~6月18例AIDS合并肺孢子菌肺炎的住院患者,对比治疗前常规胸部CT扫描与治疗后低剂量胸部CT扫描图像质量与变化情况。结果低剂量CT扫描对病变变化判断准确,低剂量CT扫描与普通CT扫描图像对比：实变影影响最小,淋巴结与胸膜改变影响次之,磨玻璃影再次之,外周肺血管影响最大,低剂量图像细节显示不如常规胸部扫描,但图像质量在不影响诊断范围内。结论低剂量胸部CT扫描是判断AIDS合并肺孢子菌肺炎治疗效果的有效方法,可以有效降低免疫功能低下患者X射线照射剂量。

Objective To investigate the application of low-dose chest CT scan in AIDS patients complicated by pneumoeystis pneumonia. Methods Collecting 18 AIDS patients complicated by pneumoeystis pneumonia who were hospitalized in our infirmary between January and June, 2010 and then comparing the changes in the regular chest CT scan and low-dose chest CT scan images before and after treatment. Results Among the 18 AIDS cases, the low-dose chest CT scan provided accurate evaluation on the disease status. Findings of the regular CT vs. the low dose CT： airspace opacities were affected the least, changes in the lymph nodes and pleura were modest, changes in ground-glass opacities came the next, and changes in the peripheral pulmonary vessels were affected the most. The image details generated with the low-dose CT were not as good as the regular CT, but the image quality didn＇t affect the diagnostics. Conclusion The low-dose chest CT scan is an effective way to evaluate the treatment result for AIDS patients complicated by pneumoeystis pneumonia, as it can decrease the dose of X-ray irradiation for immune hypofunction patients.