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目的探讨低剂量多层螺旋CT(MSCT)对肺部真菌感染的诊断价值。方法对106例经手术病理、真菌培养及临床治疗证实的肺部真菌感染患者的MSCT表现进行回顾性分析,所有患者进行低剂量MSCT检查(包括自动管电流调制技术和迭代重建技术),其中6例行CT增强扫描。结果106例肺部真菌感染患者MSCT中含有肺部多种基本影像表现,按其主要的基本影像表现分为斑片结节型54例,实变型38例,肿块型14例。106例MSCT表现中,呈现多灶性91例、多形性83例和多变性78例。本组具有特征性MSCT表现的病例中,枝芽征39例,晕轮征32例,楔形实变征19例,冰针征15例,新月征11例,气环征6例,反晕征4例,空洞内结节无强化5例。结论肺部真菌感染具有一定的MSCT特征性表现,结合临床资料可对典型的肺部真菌感染者行MSCT诊断。
Objective To investigate the diagnostic value of low-dose multi-slice spiral CT (MSCT) for pulmonary fungal infection. Methods A retrospective analysis was performed on the MSCT findings of 106 patients with pulmonary fungal infection confirmed by pathology, fungal culture and clinical treatment. All patients underwent low-dose MSCT (including automatic tube current modulation and iterative reconstruction techniques), of which 6 Routine CT enhanced scan. Results In 106 cases of pulmonary fungal infection, MSCT contained many basic lung imaging features. According to its main imaging features, there were 54 cases of patchy nodules, 38 cases of consolidation and 14 cases of lumps. In 106 cases of MSCT, there were 91 cases of multifocality, 83 cases of polymorphism and 78 cases of variability. In this group of patients with characteristic MSCT manifestations, 39 cases of branch buds, 32 cases of halo sign, 19 cases of wedge-shaped consolidation, ice sign in 15 cases, crescent sign in 11 cases, 6 cases of gas ring sign, anti-halo Sign in 4 cases, empty nodules in 5 cases without strengthening. Conclusions Pulmonary fungal infection has the characteristic features of MSCT. Combined with clinical data, MSCT can be diagnosed in typical pulmonary fungal infections.