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Motion compensation and patient feedback in medical imaging systems

A medical imaging system and imaging system technology, applied in the field of optical motion sensors, can solve time-consuming problems, achieve the effect of improving image quality and shortening image acquisition time

Inactive Publication Date: 2015-07-08
KONINKLIJKE PHILIPS ELECTRONICS NV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, motion tracking and subsequent compensation is time consuming and often less accurate than inherently high frame rate imaging (e.g. motion compensated CT reconstruction compared to real time echo for cardiac imaging)

Method used

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  • Motion compensation and patient feedback in medical imaging systems
  • Motion compensation and patient feedback in medical imaging systems
  • Motion compensation and patient feedback in medical imaging systems

Examples

Experimental program
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Effect test

Embodiment Construction

[0016] Such as figure 1 As shown in , the medical imaging system of the present invention employs an optical motion sensing system 10 , an imaging system 60 (eg, X-ray device, MRI, CT, US, IVUS), and one or more feedback systems 70 .

[0017] System 10 employs an optical motion sensor 20 comprising a BCCM 30 , one or more optical fibers 40 , and a motion tracker 50 . For purposes of the present invention, a BCCM 30 is broadly defined herein as any structure that is structurally configured to, when engaged to (e.g., attached to or adjacent to) an anatomical structure, structurally conform either partially or fully to the surface contours of the anatomical structure. item or device. Any movement of the anatomy is actively or negatively reciprocated by the BCCM 30 by structurally conforming to the surface contours of the anatomy, as engaged herein Figure 7 The description is further explained. Examples of BCCM 30 include, but are not limited to, sleeves for encircling a human...

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Abstract

An optical motion sensing system (10) for use in imaging an anatomical structure employs an optical motion sensor (20) including a body contour conforming matrix ("BCCM") (30) and an optical fiber (40). Upon BCCM (30) being adjoined to the anatomical structure, BCCM (30) structurally conforms at least partially to a surface contour of the anatomical structure for reciprocating any motion by the anatomical structure. Optical fiber (40) is at least partially embedded in the BCCM (30) for generating an encoded optical signal (42) indicative of a shape of the optical fiber (40) responsive to any SOS reciprocal motion by the BCCM (30) during an imaging of the anatomical structure. System (10) further employs a motion tracker (50) responsive to encoded optical signal (42) for periodically reconstructing the shape of optical fiber (40) with each change in the shape of optical fiber (40) representing motion by the anatomical structure.

Description

technical field [0001] The present invention generally relates to accurate and time-efficient motion tracking for time-resolved imaging and motion artifact compensation in imaging systems. The invention specifically relates to optical motion sensors incorporating one or more optical fibers embedded in a body contour conforming matrix. Background technique [0002] Motion artifacts are caused by motion of an imaged object or a portion of an imaged object during imaging of the object. Thus, motion of the patient during the sequential acquisition of image frames of the patient causes artifacts in the displayed image of the patient. More specifically, a patient may actively move or experience involuntary movement (e.g., breathing, heart motion and blood flow, eye movement, and swallowing) during a sequence of image frames, and this patient movement may cause Blurring and / or phantoms. Therefore, accurate and time-efficient motion tracking is critical for motion compensation of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B5/11A61B6/00G01B11/16A61B5/055
CPCA61B2562/0261A61B2562/164A61B5/6804A61B5/113A61B5/0082A61B2562/046A61B6/541A61B5/055A61B6/527A61B5/1128A61B6/032A61B6/5217A61B2562/0233A61B8/5276A61B8/543A61B5/721A61B5/1135A61B5/7285A61B8/12A61B5/1114G16H50/30
Inventor J·王R·陈G·T·霍夫特A·E·德雅尔丹C·S·霍尔
Owner KONINKLIJKE PHILIPS ELECTRONICS NV