Spiral CT in solitary pulmonary nodule follow-up of the value of

Objective To evaluate spiral CT in solitary pulmonary nodule follow-up of value.Methods Spiral CT in our hospital and outside hospital 12 cases of solitary pulmonary nodules in patients with follow-up,measured nodule diameter and comparative study before and after lesion morphology,and with the final pathological findings or clinical diagnosis for comparison.Results The volume increase of 12 cases in 7 cases,the volume change in 3 cases,smaller in size in 2 cases,nodule diameter increased more than 1.25 times in 3 cases; emerging spine-like processes in 1 case,the density increased in 1 cases,leaf deepen in 2 cases; diagnosed lung cancer,7 cases of inflammatory pseudotumor in 3 cases,the nature to be determined in 2 cases.Conclusion The solitary pulmonary nodule regular follow-up,the nodule diameter measured by spiral CT predicted the doubling time of nodules aud lesions observed before and after contrast to evaluate nodule growth patterns of solitary pulmonary nodules,especially in the diagnosis of small nodules and prognostic significance. Key words: Solitary pulmonary nodule; computer-aided diagnosis; Tomography; X-ray computed