Analysis of stress impacts on the examined person during scanning in an MRI scanner

PhD study program: Measurement Technology
Akademic year: 2022-2023
Advisor: Dr. Ing. Jiří Přibil (jiri.pribil@savba.sk)
External educational institution: Institute of Measurement Science SAS
Accepting university: Faculty of Electrical Engineering and Information Technology, Slovak University of Technology in Bratislava, Institute of Electrical Engineering

Annotation:

Noise and vibration generated in MRI devices during the scanning process has negative physiological as well as psychological effects on an investigated person. Analysis of the stress effect is performed depending on the intensity and duration of the exposure. The stress factors include direct changes in blood pressure, shape of a heart pulse, and heart rate can be detected from continually sensed photoplethysmographic and/or electrocardiograph signals. Non direct stress impacts can be detected from differences of vascular vessels from MR images of human limbs, and evaluated from the speech signal recorded in parallel. The thesis goal was to detect, analyze, and quantify stress impacts with final aim to find proper recommendations for its minimization. The applicant is expected to have knowledge in areas of human physiology, methods of biomedical signal measurement and sensing, and numerical methods for signal processing.