Objective To probe into the value of 64-slice spiral CT scan in the diagnosis of pulmonary sequestration.Method 24cases of patients with pulmonary sequestration received in our hospital from December

2008to April

2013were selected and examined by means of plain and enhanced 64-slice spiral CT scan

and post-processing for images was conducted.Results Among the 24cases

there were 20cases with intralobar pulmonary sequestration accounting for 91.7%.20cases had that in lower lobe of their left lungs while 4cases had that in lower lobe of their right lungs.There were 2cases with extralobar pulmonary sequestration accounting for 8.3%.Conclusion Enhanced 64-slice spiral CT scan can discover feeding artery and relatively small lesions with characteristics of short scan period

distinct images and various kinds of post-processing techniques available

which is of great value in the diagnosis of pulmonary sequestration.