Minimizing Patient Misidentification Errors in Radiology with Digital Photographs Obtained at the Point-of-Care of Medical Imaging Open Access
Tridandapani, Srini (2012)
Abstract
OBJECTIVE: To evaluate whether facial photographs obtained simultaneously with radiographs increase radiologists' detection rate of mislabeling errors.
METHODS: After IRB approval, we obtained simultaneous
portable radiographs and
photographs from 41 patients. We generated 81 pairs of chest
radiographs (one recent,
one prior radiograph). We compiled lists of 20 pairs for reader
review. Two to four
mismatched pairs (i.e., containing radiographs from different
patients) were introduced
into each list.
Ten radiologists (Group 1), blinded to presence of mismatches,
interpreted 20
radiograph pairs. Readers then reviewed a second list containing
mismatches, but with
photographs attached. Readers were not instructed regarding the
purpose of the
photographs. The mismatch detection rate was recorded for both
sessions. Time for
interpretation of the pairs was recorded for both sessions.
Another five radiologists (Group 2) reviewed radiograph pairs in
two sessions but
were informed that photographs were meant to correlate radiographs
(but not that
photographs were used to detect mismatches). The Fisher two-tailed
exact test was
used to evaluate differences in mismatch detection rates between
sessions (p <0.05).
RESULTS: For Group 1, detection rates without (3/24=12.5%) and
with photographs
(16/25=64%) significantly differed (P=0.0003). For Group 2,
difference in detection rates
without (0/20=0%) and with photographs (17/18=94.4%) was even
greater (P=0.0001).
For all readers, average interpretation time without photographs
was 32.16 minutes and
with photographs was 23.80 minutes (t-test two-tailed
P=0.0401).
CONCLUSION: Use of photographs increased detection of errors
and decreased film
interpretation time, which may translate into improvements in
patient safety and
radiograph throughput.
Minimizing Patient Misidentification Errors in Radiology with
Digital Photographs
Obtained at the Point-of-Care of Medical Imaging
By
Srini Tridandapani
BE, Anna University, 1988
MSEE, University of Washington, 1990
PhD, University of Washington, 1994
MD, University of Michigan, 2001
Thesis
The Master of Science in Clinical Research Program
Advisor: Tracy Faber, PhD
An Abstract of
A thesis submitted to the Faculty of the
James T. Laney School of Graduate Studies of Emory University
in partial fulfillment of the requirements for the degree of
Master of Science in Clinical Research
2012
Table of Contents
TABLE OF CONTENTS
Introduction...1
Methods...3
Results...11
Discussion...16
References...22
Figure 1...23
Figure 2...24
Figure 3...25
Figure 4...26
Figure 5...27
Figure 6...28
Table 1...29
Table 2...30
Table 3...31
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