NCT02894632

MR Compatible Accelerometer for Respiratory MOTion Measurement

• Status: Completed
• Phase: N/A
• Study type: Interventional
• Enrollment: 24 (actual)
• Sponsor: Central Hospital, Nancy, France · Academic / Other
• Sex: All
• Age: 18 Years
• Healthy volunteers: Accepted

Summary

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.

Detailed description

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

• Heart Disease

Interventions

Type	Name	Description
DEVICE	MRI compatible motion sensor (MARMOT)	MRI with motion control (several motion sensors placed on the volunteer's body)

Timeline

• Start date: 2013-07-01
• Primary completion: 2016-08-01
• Completion: 2016-08-01
• First posted: 2016-09-09
• Last updated: 2016-09-09

Locations

1 site across 1 country: France