Abstract: 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.