Document Type : Original Article


1 Department of Management and Health Information Technology, School of Management and Medical Information Sciences, Isfahan University of Medical Sciences

2 Department of Management and Health Information Technology, Al Zahra Hospital, Isfahan University of Medical Sciences,

3 Medical Records Department, School of Health Sciences, Isfahan University of Medical Sciences, Isfahan, Iran


CONTEXT: The advent of picture archiving and communication system (PACS) as medical image
information system represent a major change of work pattern for radiologists and physicians and
has proved to be a substantial challenge to the organization.
AIMS: The study aimed to investigate the factors affecting the use of PACS through the unified
theory of acceptance and use of technology model.
SETTINGS AND DESIGN: It was an applied and analytical study.
SUBJECTS AND METHODS: Ninety questionnaires were distributed in Kashani hospital of Esfahan
which implemented web‑based PACS, and 45 usable questionnaires were returned. The questionnaire
consists of scales for performance expectancy (PE), effort expectancy, facility condition, social
influences, and behavioral intention (BI) and was developed by the author comparing the similar
studies in which validity was confirmed by a committee of experts and the reliability was calculated
using a Cronbach’s α (α = 0.946).
STATISTICAL ANALYSIS USED: Data were analyzed using SPSS version 20. The statistical tests
for data analysis were Pearson’s correlation and multiple regression analysis.
RESULTS: The findings suggested a direct correlation between BI and factors of PE (P < 0.001,
r = 0.788), effort expectancy (P < 0.001, r = 0.564), social influences (P = 0.001, r = 0.472), and
facility condition (P < 0.001, r = 0.477).
CONCLUSIONS: According to the findings, only the PE is sufficient for predict and evaluation of
user behavior toward PACS. The results could be useful in terms of designing new systems and
understanding users’ need.


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