Poster Author of 1 e-Poster
EE-183 - Clinical evaluation of image operation system for abdominal angiography with use of simple electroencephalogram sensor and gaze sensor
Author of 1 Presentation
EE-183 - Clinical evaluation of image operation system for abdominal angiography with use of simple electroencephalogram sensor and gaze sensor
Abstract
Objectives
We developed new image manipulating system with use of gaze and electroencephalogram(EEG)-sensor for abdominal angiography. We investigated the average response time required for zooming by EEG-sensor, investigated the delay time and the displacement between gaze points and actual locations of the mouse-cursor.
Background
During angiographic examinations, radiologists need various image manipulations on MR, CT and angiographic images. However, radiologists cannot touch the console by hand. Image manipulation system that we developed in previous study based on EEG-signals by use of Mindwave-MOBILE-sensor. EEG-signals can be converted to commands for various instructions including paging which can be controlled by eye blink, and zooming of a region which can be controlled by operator’s concentration on his/her mind. However, with EEG-sensor, it wasn't possible to determine specific region for zooming.
Imaging findings OR Procedure findings
As an eye-tracker, we employed Tobii-PCEye-mini. Fifteen observers participated. The average displacement between gaze points and actual locations of the mouse cursor was 7.0±3.0mm. The average delay time required for detection of eye-tracker was 0.66±0.09sec. The detection range with high accuracy of the eye-tracker was 30cm-80cm from the sensor. The detective areas were 45cm width and 42cm height at 65cm from the sensor. This image manipulation system can be used easily for tracking within 0.7second with the circular area (radius of 7.0±3.0mm).
Conclusion
A new image manipulation system for viewing abdominal images in angiography was developed by combining EEG-signals and the eye-tracker for determining the specific region for zooming and control of icons, which can be used by radiologists without touching the console of the monitor.