MR Compatible Accelerometer for Respiratory MOTion Measurement

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

24 participants

Study Classification

INTERVENTIONAL

Study Start Date

2013-07-31

Study Completion Date

2016-08-31

Brief Summary

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A novel magnetic resonance (MR) compatible accelerometer for respiratory motion sensing (MARMOT) has been developed as a surrogate of the vendors' pneumatic belts. The aim is to model and correct respiratory motion for free-breathing thoracic-abdominal MR imaging and to simplify patient installation.

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Detailed Description

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Respiratory motion is a serious problem in the acquisition of high-quality thoracic/abdominal magnetic resonance (MR) images. Various methods have been proposed to compensate the motion-induced artefacts, including breathholding, respiratory gating and model-driven motion correction.

Breath-holding is the simplest among the three. However this conventional clinical method induces various problem, including inefficient use of scanners, inconsistent organ position between each breath-hold, imaging an altered physiological status and patient inconvenience especially for those who suffer from respiration difficulties. Free-breathing MR acquisition has therefore become of great clinical interest recently.

The investigators intend to examine the efficacy of the MARMOT sensors for:

* modelling and predicting the respiratory motions in abdominal scans,
* correcting for the respiratory motion in a cardiac cine scan, via a reconstruction-based method.

Conditions

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Heart Disease

Study Design

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Allocation Method

NA

Intervention Model

SINGLE_GROUP

Primary Study Purpose

DIAGNOSTIC

Blinding Strategy

NONE

Study Groups

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Healthy volunteers

Volunteers without cardiac, hepatic or renal pathology

Group Type EXPERIMENTAL

MRI compatible motion sensor (MARMOT)

Intervention Type DEVICE

MRI with motion control (several motion sensors placed on the volunteer's body)

Interventions

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MRI compatible motion sensor (MARMOT)

MRI with motion control (several motion sensors placed on the volunteer's body)

Intervention Type DEVICE

Eligibility Criteria

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Inclusion Criteria

* To not have cardiac, hepatic or renal pathology
* To be more than 18
* To be enrolled in a social security plan
* To have signed an informed consent
* To have preliminary medical examination

Exclusion Criteria

* Contraindication: implantable devices (pacemakers, defibrillators, cochlear implants, etc.), metallic foreign bodies
* Impossibility to undergo MRI : claustrophobia, morbid obesity
* Pregnancy or risk of pregnancy
* Patient under a measure of legal protection

Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes