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TECHNIQUE FOR ADJUSTING MAGNETIC RESONANCE IMAGING (MRI) COILS

IP.com Disclosure Number: IPCOM000242728D
Publication Date: 2015-Aug-07
Document File: 4 page(s) / 130K

Publishing Venue

The IP.com Prior Art Database

Abstract

A technique for adjusting radiofrequency (RF) coils in a magnetic resonance imaging is disclosed. The 3-dimensional surface geometry of the RF coils is divided into several segments such as left, right, top and bottom. Each segment is a plastic enclosure that contains special electronics. The technique described herein provides adjustable horizontal and vertical movements of the segments with automatic locking feature to set the segments according to desired dimensions.

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TECHNIQUE FOR ADJUSTING MAGNETIC RESONANCE IMAGING (MRI) COILS

BACKGROUND

 

The present disclosure relates generally to magnetic resonance imaging (MRI) and more particularly to a technique for adjusting MRI coils.

MRI systems employ radiofrequency coils (RF coils) as a receiver and/or a transmitter of radiofrequency (RF) signals. Generally, conventional RF coils are contained in plastic enclosures (an anterior enclosure and a posterior enclosure) that hold all electronics. The size and dimensions of these plastic enclosures are fixed and are designed to fit most patients.

However, conventional RF coils are not able to accommodate larger than average sized anatomy segment that does not fit into the fixed size conventional RF coil. Failure to accommodate for larger size prevents MRI scanning of the larger size anatomy segment. Making the RF coils large does not resolve the issue because image quality (signal to noise) with larger dimensions becomes compromised for smaller size patients.

It would be desirable to have a technique for adjusting the RF coil to open wider to fit for the larger anatomy segment of patients.

BRIEF DESCRIPTION OF DRAWINGS

Figure 1 depicts an adjustable head coil constructed using the technique described herein.

Figure 2 depicts linear movement of RF coils enabled by the technique described herein.

Figure 3 depicts an ergonomic knob and an incremental locking feature used by the technique described herein.

DETAILED DESCRIPTION

A technique for adjusting radiofrequency (RF) coils in a magnetic resonance imaging is disclosed. The 3-dimensional surface geometry of the RF coils is divided into several segments such as left, right, top and bottom. Each segment is a plastic enclosure that contains special electronics. The technique described herein provides adjustable horizontal and vertical movements of the segments with automatic locking feature to set the segments according to desired dimensions. Figure 1 depicts an adjustable head coil constructed using the technique described herein.

Figure 1

Figure 2 depicts linear movement of the RF coils enabled by the technique described herein. The technique uses a unique mechanism that combines linear adjustable movement with mechanical locking feature to incrementally set the position of the coil segments along the horizontal and vertical axes. The horizontal axis is referred to as Coronial (X-Z) plane and vertical axis is referred to as Transverse (X-Y) pla...