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Table 1 Thames Valley Imaging Network

From: Impact of picture archiving communication systems on rates of duplicate imaging: a before-after study

Hospital Annual number of X-ray examinations Annual number of CT examinations* PACS introduced (filmless date)
A† - - Jun 1, 2004
B‡    Feb 1, 2005
C‡ 43609 36016 Mar 1, 2005
D‡    Mar 1, 2005
E 5071 - Jun 1, 2005
F 1297 - Aug 1, 2005
G 4007 - Aug 1, 2005
H 2919 - Sep 1, 2005
I 8501 5773 Oct 1, 2005
J 6924 3599 Dec 1, 2005
  1. Abbreviations: PACS, picture archiving communication systems. X-ray counts are for chest and abdomen; computed tomography counts are for abdomen/pelvis, head, and chest, and were obtained using Ontario Health Insurance Plan (OHIP) data from the 2005/2006 fiscal year (April 1, 2005 to March 31, 2006).
  2. *Computed tomography services were not provided by all Thames Valley hospitals during the observation period of this study.
  3. †Diagnostic imaging exams were not billed to OHIP during the observation period of this study. Therefore, this institution was excluded.
  4. ‡These three hospital sites are part of the same corporation and are identified with a single institution number in the OHIP database. For the purposes of this study, hospitals B-D were treated as a single institution with a filmless date of March 1, 2005.