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COMPUTER VISION SYSTEM FOR DETECTING EMOTIONAL STATE OF A PATIENT DURING MEDICAL IMAGING PROCEDURES

IP.com Disclosure Number: IPCOM000237058D
Publication Date: 2014-May-29
Document File: 5 page(s) / 53K

Publishing Venue

The IP.com Prior Art Database

Abstract

The invention proposes a technique to monitor an emotional or arousal state of a patient during medical imaging procedure, such as, magnetic resonance imaging (MRI) or computer tomography (CT) scanning. The technique includes monitoring patient utilizing combination of a camera for visual observation, respiratory waveform, a motion sensor in a patient bed, and feature descriptors to determine emotional state of a patient during medical imaging procedure. Factors from several status observation tools indicate that a sleep or anxiety threshold acquired are sent to a technologist as an alert. Factors that indicate the alert are appropriate when there is combination of changes in waveform pattern, motion detection from the bed and observation by software regarding feature descriptors. The technologist workstation provides a display of the patient with the respiratory waveform superimposed across bottom of the image. The technique intends to reduce a cognitive load on the technologist. This provides successful and efficient imaging facility by reducing imaging failure due to patient movement or sleep.

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COMPUTER VISION SYSTEM FOR DETECTING EMOTIONAL STATE OF A PATIENT DURING MEDICAL IMAGING PROCEDURES

 

BRIEF ABSTRACT

The invention proposes a technique to monitor an emotional or arousal state of a patient during medical imaging procedure, such as, magnetic resonance imaging (MRI) or computer tomography (CT) scanning.  The technique includes monitoring patient utilizing combination of a camera for visual observation, respiratory waveform, a motion sensor in a patient bed, and feature descriptors to determine emotional state of a patient during medical imaging procedure.  Factors from several status observation tools indicate that a sleep or anxiety threshold acquired are sent to a technologist as an alert. Factors that indicate the alert are appropriate when there is combination of changes in waveform pattern, motion detection from the bed and observation by software regarding feature descriptors. The technologist workstation provides a display of the patient with the respiratory waveform superimposed across bottom of the image. The technique intends to reduce a cognitive load on the technologist. This provides successful and efficient imaging facility by reducing imaging failure due to patient movement or sleep.

 

KEYWORDS

            Emotional, camera, respiratory wave front, motion sensor, MRI, CT


DETAILED DESCRIPTION

During medical imaging procedure, such as, an MRI, CT scan or other imaging methodology, it requires a patient to lie motionless and awake for long period. Movement by the patient or change in breathing pattern results in negative outcomes on the medical imaging procedure. Negative imaging procedure includes poor quality images, repeated procedures, delayed procedure, cancelled procedure, reduction in efficiency for facilitating an invasive examination required to obtain information that is found by imaging procedure. The patient emotion and physical condition affects ability of the patient to remain still during imaging procedure. Some patients are unable to remain still for a variety of reasons, such as, boredom, claustrophobia or physical discomfort. Additionally for some patients, process of undergoing an imaging procedure causes emotional distress, which causes the patient to move during the procedure. Stress is result of both procedure and concern over the results. As the patient sleeps or approaches to sleeping condition, breathing pattern becomes inconsistent. This does not affect results for head or limb images, but images made of torso are compromised by inconsistent breathing. As such procedure depends on timing of breathing of the patient in order to obtain consistent images, which are acquired at same point during respiration, sleep provides an unsatisfactory result. Problem of patient state is exacerbated by fact that a technologist is in separate room during the procedure. While the experienced technologist judges about when patient falls asleep based on appearance alone, there is possibility that the...