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Detection of the patient movement during the scan (uneasiness in a patient due to illness, Electrophobia, Thermophobia, Claustrophobia - Fear of being enclosed) for the additional safety at the clinical scanner

IP.com Disclosure Number: IPCOM000096081D
Original Publication Date: 2005-Apr-16
Included in the Prior Art Database: 2005-Apr-16
Document File: 2 page(s) / 34K

Publishing Venue

Siemens

Related People

Juergen Carstens: CONTACT

Abstract

In present clinical scanners (MR (Magnetic Resonance Imaging), CT (Computer Tomography)), after positioning the patient, the operator normally sits near a window for observing the patient and a monitor for displaying images and controlling the scanner. A camera is installed in the tunnel to watch the patient during the scan. The present system lacks on the capability of recognizing patient movements during the scans which may be the result of patient illness or some kind of phobia. Also, some of the scanner tunnels are perpendicular to the viewing direction of the operators why a direct field of view is not possible for the complete body. In the scanner, the patient is provided with an alarm bell. In addition, a monitor is placed near the window for the operator to watch the patient movements. If the patient leaves the alarm bell and the operator ignores the image on the screen then it could lead to some accident e.g. the patient may contact the tunnel or the RF (Radio Frequency) coil which could cause local burns or cause distortion in the image. During fMRI (functional Magnetic Resonance Imaging) studies, the operator asks the patient to perform certain tasks e.g. finger-tipping, moving hand/legs etc. At present, there is no mechanism to verify the said tasks. During the psychophysiological studies, the patient performs certain movements due to uneasiness or fear, which could lead to misleading information.

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Detection of the patient movement during the scan (uneasiness in a patient due to illness, Electrophobia, Thermophobia, Claustrophobia - Fear of being enclosed) for the additional safety at the clinical scanner

Idea: Sultan Haider, DE-Erlangen

In present clinical scanners (MR (Magnetic Resonance Imaging), CT (Computer Tomography)), after positioning the patient, the operator normally sits near a window for observing the patient and a monitor for displaying images and controlling the scanner. A camera is installed in the tunnel to watch the patient during the scan. The present system lacks on the capability of recognizing patient movements during the scans which may be the result of patient illness or some kind of phobia. Also, some of the scanner tunnels are perpendicular to the viewing direction of the operators why a direct field of view is not possible for the complete body.

In the scanner, the patient is provided with an alarm bell. In addition, a monitor is placed near the window for the operator to watch the patient movements. If the patient leaves the alarm bell and the operator ignores the image on the screen then it could lead to some accident e.g. the patient may contact the tunnel or the RF (Radio Frequency) coil which could cause local burns or cause distortion in the image.

During fMRI (functional Magnetic Resonance Imaging) studies, the operator asks the patient to perform certain tasks e.g. finger-tipping, moving hand/legs etc. At present, there is no mechanism to verify the said tasks. During the psychophysiological studies, the patient performs certain movements due to uneasiness or fear, which could lead to misleading information.

A new system consists of an apparatus with a change detection mechanism for the patient movement during the scan (patient uneasiness due to illness, Electrophobia, Thermophobia, Claustrophobia - the fear of being enclosed) for the additional safety at the clinical scanner can solve the problem. The apparatus could be used during psychophysiological studies as well as during electrophysiological studies (e.g. monitoring and marking the change taking places due to the application of electrical responses, during fMRI studies, patients are asked to perform certain tasks, finger-tipping, moving hands etc., rehabilitation patient monitoring, patients suffering from epileptic seizures, strokes, Alzheimer disease etc.

The new system consists of an assembly of multiple cameras (2D or 3D with or without processor) as the requirements of the user/application. The camer...