Increase in Utilization of Afterhours Medical Imaging: A Study of Three Canadian Academic Centers

Canadian Association of Radiologists Journal - Tập 66 - Trang 302-309 - 2015
Shivani Chaudhry1, Irfan Dhalla2, Gerald Lebovic3,4, Patrik Rogalla1, Timothy Dowdell5
1Department of Medical Imaging, University Health Network, Toronto General Hospital, Toronto, Ontario, Canada
2Department of Medicine, St. Michael's Hospital, Toronto, Ontario, Canada
3Applied Health Research Centre, St Michael’s Hospital, Toronto, Ontario, Canada
4Institute of Health Policy, Management and Evaluation, University of Toronto, Toronto, Ontario, Canada
5Department of Medical Imaging, St Michael's Hospital, Toronto Ontario, Canada

Tóm tắt

Objectives The objectives of our study were to assess trends in afterhours medical imaging utilization for emergency department (ED) and inpatient (IP) patient populations from 2006-2013, including analysis by modality and specialty and with adjustment for patient volume. Methods For this retrospective study, we reviewed the number of CT, MRI, and ultrasound studies performed for the ED and IP patients during the afterhours time period (5pm - 8am on weekdays and 24 hours on weekends and statutory holidays) from 2006-2013 at three different Canadian academic hospitals. We used the Jonckheere-Terpstra (JT) test to determine statistical significance of imaging and patient volume trends. A regression model was used to examine whether there was an increasing trend over time in the volume of imaging tests per 1000 patients. Results For all three sites from 2006-2013 during the afterhours time period: There was a statistically significant increasing trend in total medical imaging volume, which also held true when the volumes were assessed by modality and by specialty. There was a statistically significant increasing trend in ED and IP patient volume. When medical imaging volumes were adjusted for patient volumes, there was a statistically significant increasing trend in imaging being performed per patient. Conclusion Afterhours medical imaging volumes demonstrated a statistically significant increasing trend at all three sites from 2006-2013 when assessed by total volume, modality, and specialty. During the same time period and at all three sites, the ED and IP patient volumes also demonstrated a statistically significant increasing trend with more medical imaging, however, being performed per patient.

Tài liệu tham khảo

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Thông tin xuất bản

Canadian Association of Radiologists Journal

Tập 66

302-309

Thông tin tác giả