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Method for workflow automation at clinical scanners for registration and verification of head first/feet first, prone/supine phenomenon

IP.com Disclosure Number: IPCOM000029063D
Published in the IP.com Journal: Volume 4 Issue 7 (2004-07-25)
Included in the Prior Art Database: 2004-Jul-25
Document File: 3 page(s) / 393K

Publishing Venue

Siemens

Related People

Juergen Carstens: CONTACT

Abstract

Up to now, in clinical scanners, the operator manually makes an entry for the patient positioning head first/feet first, prone/supine. It is difficult to distinguish between the axial image in case head first/feet first phenomenon. In case of Magnetic Resonance Imaging (MRI) an injury due to RF (Radio Frequency) coils must be avoides and the operator must ensure manually that patient's head position is not too high. The operator makes sure that there is no direct contact between the patient's body and the tunnel (see fig. 1). The new idea is a cost effective method for workflow automation at clinical scanners for registration and verification of head first/feet first, prone/supine phenomenon. A camera system records the outline from different prospective to make a 3-dimensional reconstruction of the body through commonly available image processing techniques as block matching, correlation approach etc. The critical points are recorded and the whole volume of the body is divided into cuboidal structures.

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Method for workflow automation at clinical scanners for registration and verification of head first/feet first, prone/supine phenomenon

Idea: Sultan Haider, DE-Erlangen

Up to now, in clinical scanners, the operator manually makes an entry for the patient positioning head first/feet first, prone/supine. It is difficult to distinguish between the axial image in case head first/feet first phenomenon. In case of Magnetic Resonance Imaging (MRI) an injury due to RF (Radio Frequency) coils must be avoides and the operator must ensure manually that patient's head position is not too high. The operator makes sure that there is no direct contact between the patient's body and the tunnel (see fig. 1).

The new idea is a cost effective method for workflow automation at clinical scanners for registration and verification of head first/feet first, prone/supine phenomenon.

A camera system records the outline from different prospective to make a 3-dimensional reconstruction of the body through commonly available image processing techniques as block matching, correlation approach etc. The critical points are recorded and the whole volume of the body is divided into cuboidal structures.

In normal cases L2, which corresponds to the length of head, is less than L4 i.e., the length of legs (see fig. 2). Also, L2 is less than L3 i.e., the part of body between head and legs. The control system compares the length and gives an audio-visual output in case the positioning of the patient is wrong....