Radiologist assessment of PACS user interface devices

Area of Science:

• Medical Imaging and Radiology
• Human-Computer Interaction
• Medical Informatics

Background:

• Filmless imaging has transformed radiologic interpretation, yet traditional keyboard-mouse interfaces persist.
• Despite advancements in display and navigation tools, user interaction in radiology remains largely unchanged.

Purpose of the Study:

• To evaluate the efficacy and user acceptance of alternative user interface devices (UIDs) in radiologic interpretation.
• To assess the potential of novel UIDs to enhance workflow and efficiency in filmless imaging environments.

Main Methods:

• Six radiologists evaluated six different UIDs, including various mice, a gyroscopic mouse, a multimedia controller, a keyboard-mouse combo, and a joystick.
• Participants used the devices during real-time interpretation of MRI, CT, and X-ray studies over two weeks.
• User feedback was collected via questionnaires focusing on ease of use, workflow, efficiency, and customization.

Main Results:

• No single alternative UID fully replaced the conventional mouse and keyboard for all participants.
• The 5-button mouse was generally preferred over the 8-button mouse, with potential learning curve effects noted.
• Users appreciated specific functionalities of alternative UIDs and suggested combining devices for two-handed operation.

Conclusions:

• Alternative UIDs hold potential for increased acceptance and efficiency when integrated into picture archiving and communication system (PACS) workstations.
• Further research is warranted to explore the integration and evaluation of different UIDs within PACS environments.
• Future studies will utilize software applications to rigorously assess various UIDs at PACS workstations.