[Ultrasound, abdominal X-ray and dual-source CT in the diagnosis of colon tumor mechanical obstruction].

Objective To study the value of ultrasound,abdominal X-ray,and dual-source CT(DSCT) in the diagnosis of colon tumor obstruction.Methods A retrospective analysis was conducted among 45 patients who were admitted to our department between October 2010 and August 2011 for abdominal pain.All the patients underwent ultrasound,abdominal X-ray and DSCT examinations and subsequent surgical interventions,which confirmed the diagnosis of colon tumor obstruction.Results DSCT diagnosis was obviously more efficient than ultrasound and X-ray in detecting colon obstruction by neoplasms,and could better predict the position of the obstruction.Complete information of the vessels in the surgical field could be obtained by DSCT imaging three-dimensional reconstruction.Conclusion Compared with ultrasound and X-ray,DSCT is more effective in the diagnosis of colon tumor obstruction by acquiring more thorough information by imaging reconstruction and should be considered for a rapid and accurate diagnosis.