CN201398970Y

CN201398970Y - Shoulder coil

Info

Publication number: CN201398970Y
Application number: CN2009201486276U
Authority: CN
Inventors: 王海宁; 马立
Original assignee: Siemens Shenzhen Magnetic Resonance Ltd
Current assignee: Siemens Shenzhen Magnetic Resonance Ltd
Priority date: 2009-03-31
Filing date: 2009-03-31
Publication date: 2010-02-10
Anticipated expiration: 2019-03-31

Abstract

The utility model provides a shoulder coil used in magnetic resonance imaging equipment, which is used for covering one shoulder at one side of the human body and comprises at least six coil units: anacromion coil unit located at the position of an acromion, a deltoid middle bundle coil unit located at the position of a deltoid middle bundle, a front trapezius coil unit and a back trapezius coilunit which are symmetrically arranged at the front and the back of a trapezius muscle, and a prothorax coil unit and a back coil unit which are respectively and symmetrically arranged at the prothoraxand the back. By adopting the shoulder coil, a parallel imaging technology can be adopted at three directions, namely from beginning to end, from left to right and from up to down, thereby forming amore clear and complete shoulder magnetic resonance image.

Description

The shoulder coil

Technical field

This utility model relates to a kind of shoulder coil that uses in magnetic resonance equipment, particularly be suitable for parallel imaging technique (IPAT) carries out nuclear magnetic resonance to the human body shoulder shoulder coil.

Background technology

The medical imaging diagnostic device in for example nuclear magnetic resonance (MRI) equipment, generally includes superconducting magnet that produces stable main field and gradient coil and the radio-frequency unit that produces the gradient fields of quick break-make.Magnet and gradient coil generally are designed to the tubulose of arranged concentric, need carry out the patient of magnetic resonant imaging examination or the inner chamber that object places above-mentioned pipe fitting, and be in the gradient magnetic that magnet and gradient coil produce, radio-frequency unit is injected radiofrequency signal inspected object and is received the magnetic resonance signal that is produced, and produces magnetic resonance image (MRI) on the basis of these magnetic resonance signals.Wherein, above-mentioned radio-frequency unit comprises radio-frequency coil and and the control system that is used to transmit and receive signal.Described radio-frequency coil is according to structure and check that the difference of purpose can be divided into head coil, body coil etc.

Shoulder arthralgia is a kind of very general chronic pain, but because the complex structure of shoulder joint, in magnetic resonance examination, in order to obtain distinct image, the design of shoulder coil and manufacturing are very difficult things.General shoulder coil adopts single coil or surface coils usually, but this structure signal to noise ratio height, imaging is clear inadequately.

For this reason, also useful crossed coil improves signal to noise ratio now, US 7031763 B1 provide a kind of shoulder coil, as shown in Figure 1, this coil 10 comprises coil unit 8, coil unit 9 and coil unit 11, the nuclear magnetic resonance of (AP) direction before and after wherein coil unit 8 and coil unit 9 are used for, and coil unit 10 be used for about the nuclear magnetic resonance of (LP) direction.But this coil can not about the nuclear magnetic resonance of (HF) direction, can't on all directions, all adopt parallel imaging technique, so that form the image of complete display more.

The utility model content

Therefore, this utility model aims to provide a kind of shoulder coil that can adopt parallel imaging in three directions of LP, AP and HF.

For achieving the above object, this utility model provides a kind of shoulder coil that is used for MR imaging apparatus, in order to coat a side shoulder of human body, this shoulder coil comprises at least six coil units: an acromion coil unit that is positioned at the acromion position, a triangular muscle wire bushing unit that is arranged in triangular muscle bundle position, before being symmetricly set on trapezius muscle respectively, the preceding trapezius muscle coil unit of back position and back trapezius muscle coil unit, and be symmetricly set on the shirtfront coil unit at shirtfront place and the back coil unit at back place respectively, and the shirtfront coil unit is positioned at described preceding trapezius muscle coil unit, between the wire bushing unit, described back coil unit is positioned at described back trapezius muscle coil unit in described acromion coil unit and the described triangular muscle, in described acromion coil unit and the described triangular muscle between the wire bushing unit.

Wire bushing unit in described acromion coil unit, the triangular muscle, preceding trapezius muscle coil unit, the side's of retreading coil unit, the marginal portion that the shirtfront coil unit is adjacent with the back coil unit are overlapped.

Each coil unit in the shoulder coil of the present utility model both can be a loop coil, also can be surface coils.

Shoulder coil of the present utility model can adopt parallel imaging technique at LP, AP and three directions of HF, to form the shoulder magnetic resonance image (MRI) of complete display more.

Description of drawings

The following drawings is only done this utility model and is schematically illustrated and explain, does not limit scope of the present utility model.Wherein:

Fig. 1 is a kind of structural representation of existing shoulder coil;

Fig. 2 is the structural representation of a kind of shoulder coil of the present utility model;

Fig. 3 is the expansion sketch map of each coil unit of this utility model shoulder coil.

The specific embodiment

Understand for technical characterictic of the present utility model, purpose and effect being had more clearly, now contrast the description of drawings specific embodiment of the present utility model, identical label is represented identical part in each figure.

Figure 2 shows that the structural representation of a kind of shoulder coil of the present utility model, Fig. 3 is the expansion sketch map of this shoulder coil.As shown in Figure 2, shoulder coil 20 is applicable to the parallel imaging technique of MR imaging apparatus, and it can coat a side shoulder of human body, and shoulder coil 20 comprises six coil units, so that all can realize magnetic resonance parallel imaging at LP, AP and three directions of HF.In these six coil units, an acromion coil unit 21 that is positioned at the acromion position, one is arranged in triangular muscle and restraints preceding trapezius muscle coil unit 23 and shirtfront coil unit 25 that is positioned at the place, shirtfront that 22, one of the triangular muscle wire bushing unit of position are positioned at trapezius muscle position, front.Referring to Fig. 3,, also has a back trapezius muscle coil unit 24 and a back coil unit 26 that is positioned at the back place that is positioned at back trapezius muscle position correspondingly at the back of human body.Though mentioned the title of the various tissues of human body here, it strictly should be restricted to the position of anatomy meaning, it just as a reference coordinate, is used to represent residing approximate location of each coil unit and corresponding relation thereof.

As Fig. 2, shirtfront coil unit 25 is in preceding trapezius muscle coil unit 23, acromion coil unit 21 and triangular muscle between the wire bushing unit 22, correspondingly, as shown in Figure 3, back coil unit 26 is in back trapezius muscle coil unit 24, acromion coil unit 21 and triangular muscle between the wire bushing unit 22.Shoulder coil 20 that can coat human body one side shoulder as shown in Figure 2 of the common formation of these six coil units is implemented in the magnetic resonance parallel imaging on three directions of LP, AP and HF.

Shown in Fig. 2,3, wire bushing unit 22 in acromion coil unit 21, the triangular muscle, preceding trapezius muscle coil unit 23, back trapezius muscle coil unit 24, shirtfront coil unit 25 and back coil unit 26 marginal portion adjacent one another are is overlapped, so that nuclear magnetic resonance is more complete.

Though each coil unit shown in Fig. 2 and 3 is a planar coil, but shoulder coil of the present utility model also can be a loop coil etc., and the quantity of coil unit also can be more than six, as long as can guarantee to realize that the coil unit shape and the quantity of magnetic resonance parallel imaging all are acceptables on LP, AP and three directions of HF.

Above listed a series of detailed description only is specifying at feasibility embodiment of the present utility model; they are not in order to limiting protection domain of the present utility model, allly do not break away from equivalent embodiment or the change that this utility model skill spirit done and all should be included within the protection domain of the present utility model.

Claims

1, a kind of shoulder coil that is used for MR imaging apparatus is characterized in that comprising at least six coil units:

An acromion coil unit that is positioned at the acromion position;

A triangular muscle wire bushing unit that is arranged in triangular muscle bundle position;

Be symmetricly set on the preceding trapezius muscle coil unit and the back trapezius muscle coil unit of the forward and backward position of trapezius muscle respectively;

Be symmetricly set on the shirtfront coil unit at place, shirtfront and the back coil unit at back place respectively, and the shirtfront coil unit is before described in trapezius muscle coil unit, described acromion coil unit and the described triangular muscle between the wire bushing unit, and described back coil unit is in described back trapezius muscle coil unit, described acromion coil unit and described triangular muscle between the wire bushing unit.

2, shoulder coil as claimed in claim 1, it is characterized in that, wire bushing unit in described acromion coil unit, the described triangular muscle, described before trapezius muscle coil unit, described back trapezius muscle coil unit, marginal portion that described shirtfront coil unit is adjacent with described back coil unit overlapped.

3, shoulder coil as claimed in claim 1 is characterized in that, each coil unit is a surface coils.

4, shoulder coil as claimed in claim 1 is characterized in that, each coil unit is a loop coil.