Utilization of pre-operative imaging for colon cancer: A population-based study

Objective

To assess the use of pre-operative imaging for colon cancer and to identify factors associated with utilization in routine clinical practice.

Methods

This population-based, retrospective cohort study used a random sample of 25% of colon cancer patients treated with surgery in the province of Ontario (2002–2008). Pre-operative imaging (<16 weeks from surgery) of the chest, abdomen-pelvis was identified. Modified poisson regression was used to analyze factors associated with practice patterns.

Results

Of the 7,249 included patients, 48% had pre-operative imaging (CT abdomen and imaging of the chest) in keeping with guideline recommendations. The rate of guideline concordant pre-operative imaging increased over time: 64% in the most recent study period (2006–2008) versus 31% (2002–2004); P < 0.001. Variables associated with use of chest imaging: Age, co-morbidity, surgeon volume, and geographic region; no association with gender, hospital volume, or socio-economic status. Variables associated with use of abdomen imaging: Hospital volume and geographic region; no association with age, gender, comorbidity, socio-economic status, or surgeon volume.

Conclusion

In clinical practice, the majority of patients were not receiving pre-operative imaging that was in line with clinical practice guidelines; however, use increased over time indicating a possible association with dissemination of clinical practice guidelines. J. Surg. Oncol. © 2016 Wiley Periodicals, Inc.

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