The diagnostic significance of thin layer reconstruction with spiral CT on the pulmonary hamartoma / 实用放射学杂志

ABSTRACT

Objective To investigate the diagnostic significance of thin layer reconstruction with spiral CT on the pulmonary hamartoma. Methods Accepted both routine CT examination and thin layer construction,2 1 pulmonary hamartoma cases confirmed by pathology were analyzed retrospectively.The margin and inner features of the lesions were observed and recorded.Significant analysis was performed by using SPSS17.0 Pearson chi-square test and Fisher exact test,with P<0.05 as the significant difference criterion.Results Comparison of the display rates by routine CT and thin layer reconstruction①the same display rate of lobulation were 57.1%(12/21);②the same display rate of calcification were 42.9% (9/21);③the display rates of fat density were 14.3%(3/21)by routine CT and 42.9% (9/21)by thin layer reconstruction.The difference was statistically significant (χ2=4.200,P<0.05);④the display rates of blood vessel throughing were 14.3%(3/21)by routine CT and 47.6% (10/21)by thin layer reconstruction.The difference was statistically significant (χ2=5.459,P<0.05).Conclusion Displaying the inner features of pulmonary hamartoma better than routine CT,the thin layer reconstruction can improve the diagnostic accuracy significantly.