Browse Prior Art Database

SHOULDER IMAGING COIL

IP.com Disclosure Number: IPCOM000242858D
Publication Date: 2015-Aug-26
Document File: 3 page(s) / 143K

Publishing Venue

The IP.com Prior Art Database

Abstract

A shoulder imaging coil is disclosed. The shoulder imaging coil comprises a base, a dorsal-ventral wrap coil, and a trans-scapular horseshoe coil. The shoulder imaging coil consists of various channels. A first channel comprises the trans-scapular horseshoe coil and a coil segment within the base. The shoulder imaging coil includes three saddle coils. The three saddle coils include an epaulet and two supra-clavicular wraps. The epaulet lies in a sagittal plane. Further, the shoulder imaging coil includes two pairs of staggered loops, a pair of anterior loops and a pair of posterior loops immediately adjacent to the supra-clavicular wraps. Furthermore, the base is provided with two sets of staggered mechanical or electrical connectors. The staggered mechanical or electrical connectors are spring loaded to allow a technician to quickly fit the shoulder imaging coil comfortably on patients.

This text was extracted from a Microsoft Word document.
At least one non-text object (such as an image or picture) has been suppressed.
This is the abbreviated version, containing approximately 53% of the total text.

SHOULDER IMAGING COIL

BACKGROUND

The present invention relates generally to magnetic resonance imaging (MRI) systems, and more particularly to a shoulder imaging coil.

Like various other anatomical parts, human shoulder is imaged using MRI systems to study the shoulder for pathologies. Numerous shoulder pathologies such as rotator cuff tears or impingement, dislocation, tendon and ligament tears or hyper flexion, calciferous deposits, osteoarthritis, bone spurs (humeral and scapular), infectious and auto-immune inflammatory processes, and cancers of the bone and connective tissue in the human shoulder (especially osteosarcomas) may be detected or determined using shoulder MRI images.

Conventional shoulder imaging coils suffer from poor image fidelity due to inhomogeneous B0 field.  Inhomogeneous B0 field is experienced due to the proximity to a bore edge.    Further, the conventional shoulder imaging coils are unable to provide sufficient penetration depth and suffer from poor SNR (signal to noise ratio).  Furthermore, the conventional shoulder imaging coils are incapable of locking down patient extremities and suffer from motion artifacts.  The conventional shoulder imaging coils are also uncomfortable, and difficult to manage for patients.  As a result, the conventional shoulder imaging coils are unable to offer quality image and in turn lead to poor diagnoses.  

Therefore, it would be desirable to have an improved shoulder imaging coil that provides quality image for efficient diagnosis. 

BRIEF DESCRIPTION OF DRAWINGS

Figure 1 depicts a shoulder imaging coil.

DETAILED DESCRIPTION

This disclosure proposes a shoulder imaging coil.  Figure 1 depicts the shoulder imaging coil.  The shoulder imaging coil comprises a base, a dorsal-ventral wrap coil, and a trans-scapular horseshoe coil.  The shoulder imaging coil consists of various channels.  A first channel comprises the trans-scapular horseshoe coil and a coil segment within the base.  The shoulder imaging coil includes three saddle coils. The three saddle coils include an epaulet and two supra-clavicular wraps.  The epaulet lies in a sagittal plane.  Further, the shoulder imaging coil includes two pairs of staggered loops, a pair of anterior loops and a pair of posterior loops immediately adjacent to the supra-clavicular wraps as illustrated in Figure 1.  

The shoulder imaging coil may use two sizes of the trans-scapular horseshoe coils to accommodate small-to-average sized patients as well as large sized patients.  Further, the base is provided with two sets of staggered mechanical or electrical connectors.  The staggered mechanical or electrical connectors are spring loaded to allow a technician to quickly fit the shoulder imaging coil comfortably on patients.

Figure 1

It has been observed that shoulder pathologies are gen...