肺隔离症的多层螺旋CT诊断

The Diagnosis of Multi-slice Helical CT in Pulmonary Sequestration

目的:探讨肺隔离症的多层螺旋CT表现,以提高诊断的准确率。方法:回顾性分析经手术及病理证实的12例肺隔离症CT资料,全部病例术前均行CT平扫和增强检查。结果:12例肺隔离症中,11例为肺叶内型,1例为肺叶外型。9例位于左肺下叶,3例位于右肺下叶。呈囊性病灶3例,囊实性病灶7例,实性病灶2例。病灶周围伴有局限性肺气肿6例。9例显示异常供血动脉,其中发自胸主动脉7例,腹主动脉2例,CTA清晰显示了其起源、形状及走形。结论:多层螺旋CT检查能很好的显示肺隔离症的异常供血动脉,有利于确诊本病和制定手术方案。

Objective ： To investigate Multi - slice helical CT findings of pulmonary sequestration , so as to improve its diagnostic accuracy. Methods：12 patients that had been proven pulmonary sequestration by operation and pathology were retrospectively reviewed with their CT finding. All 12 patients underwent plain and enhanced CT. Results： In 12 cases of pulmonary sequestration, Lung inner type was in 11 and lung exterior type in 1.9 patients had lesions in left lower lung and 3 patients in right lower lung. 3 of them were cystic ,7 were cystic and solid ,2 were solid. The emphysema around the lesions were showed in 6 cases. Anomalous systemic artery could be seen in 9 cases, among which 7 were from thoracic aorta ,2 from abdominal aorta . CTA showed the origin and shape of abnormal arterial supply could. Conclusions： MSCT techniques are useful in demonstrating the supplying vessels to pulmonary sequestration in a way that can provide the diagnosis and aid in surgical planning.