Pediatric coil assembly

Patent metadata

Field	Value
Publication number	US-9116212-B2
Application number	US-95074610-A
Country	US
Kind code	B2
Filing date	Nov 19, 2010
Priority date	Nov 19, 2010
Publication date	Aug 25, 2015
Grant date	Aug 25, 2015

Abstract

In order to increase the signal to noise ratio, and thus increase the quality of images produced during pediatric MRI, a pediatric RF coil assembly includes a head coil and a flexible body coil in a single dedicated device shaped and sized for a child. The flexible body coil may be operable to at least partially surround and abut the body of the child located on the pediatric RF coil assembly, while the head coil may at least partially surround and abut the head of the child located on the pediatric RF coil assembly. In order to optimize workflow, the child may be positioned on the pediatric RF coil assembly in a first room and moved to a second room including an MRI system after the child is brought to sleep or sedated in the first room. The pediatric RF coil assembly and the child may be moved to the second room using a handle rotatably attached to the pediatric RF coil assembly, and may be positioned on a patient table of the MRI system when the imaging process is to begin.

First claim

The invention claimed is:

1. A pediatric radiofrequency (RF) coil assembly comprising:
a base comprising a first RF coil;
a flexible body coil housing comprising an inner surface, an outer surface, and at least one side extending between the inner surface and the outer surface, a portion of the outer surface of the flexible body coil housing abutting the base and the flexible body coil housing being removable from the base, the flexible body coil housing comprising a second RF coil, a patient being positionable on the inner surface of the flexible body coil housing such that the flexible body coil housing supports the patient;
a head coil housing removably attached to the base, the head coil housing comprising a third RF coil and operable to at least partially surround the head of the patient located on the pediatric RF coil assembly; and
a handle rotatably attached to the base and configured for carrying the pediatric RF coil assembly when the patient is positioned on the pediatric RF coil assembly.

2. The pediatric RF coil assembly of claim 1 , wherein the flexible body coil housing is operable to at least partially surround the body of the patient located on the pediatric RF coil assembly.

3. The pediatric RF coil assembly of claim 1 , wherein the head coil housing is one of a plurality of head coil housings attachable to the base, each head coil housing of the plurality having a different size.

4. The pediatric RF coil assembly of claim 1 , wherein the base, the flexible body coil housing and the head coil housing combined comprise between 20 and 30 RF coils.

5. The pediatric RF coil assembly of claim 1 , wherein the third RF coil is a volume coil.

6. The pediatric RF coil assembly of claim 1 , wherein at least part of the head coil housing is made of polycarbonate.

7. The pediatric RF coil assembly of claim 1 , wherein the flexible body coil housing comprises a first section, a second section, and a third section, the first section being rigid, and the second section and the third section being flexible.

8. The pediatric RF coil assembly of claim 7 , wherein the second section is attached to a first side of the first section, and the third section is attached to a second side of the first section.

9. The pediatric RF coil assembly of claim 8 , wherein the flexible body coil housing comprises a first hinge and a second hinge, and
wherein the second section is attached to the first side of the first section via the first hinge, and the third section is attached to the second side of the first section via the second hinge.

10. A method of using a pediatric radiofrequency (RF) coil assembly, the pediatric RF coil assembly comprising a base, a flexible body coil housing, a head coil housing, and a handle, the base comprising a first RF coil, the flexible body coil housing comprising an inner surface, an outer surface, at least one side extending between the inner surface and the outer surface, and a second RF coil, and the flexible body coil housing being removable from the base, a patient being positionable on the inner surface of the flexible body coil housing such that the flexible body coil housing supports the patient, the head coil housing being removably attached to the base, the head coil housing comprising a third RF coil and being operable to at least partially surround the head of the patient located on the pediatric RF coil assembly, the handle being rotatably attached to the base and configured for carrying the pediatric RF coil assembly when the patient is positioned on the pediatric RF coil assembly, the method comprising:
positioning the patient on the inner surface of the flexible body coil housing of the pediatric RF coil assembly such that the flexible body coil housing supports the patient in a first room, at least a portion of the outer surface of the flexible body portion abutting the base;
wrapping the flexible body coil housing of the pediatric RF coil assembly around at least part of the patient;
transferring the pediatric RF coil assembly and the patient to a second room, the second room including a magnetic resonance imaging (MRI) system, wherein transferring the pediatric RF coil assembly and the patient comprises using the handle rotatably attached to the base;
electrically connecting the pediatric RF coil assembly to the MRI system;
imaging a portion of the patient using the MRI system and at least one coil in the pediatric RF coil assembly.

11. The method of claim 10 , wherein positioning the patient on the pediatric RF coil assembly comprises:
the wrapping of the flexible body portion of the pediatric RF coil assembly around at least the part of the patient, wherein the RF coil of the flexible body portion is operable to be electrically connected to the MRI system.

12. The method of claim 11 , wherein positioning the patient on the pediatric RF coil assembly further comprises fixing the position of a first end of the flexible body portion relative to a second end of the flexible body portion with a fastener attached to a second surface of the flexible body portion.

13. The method of claim 10 , wherein the RF coil of the flexible body portion is a first RF coil,
wherein the method further comprises attaching a head portion comprising a second RF coil to the pediatric RF coil assembly after the patient has been positioned on the pediatric RF coil assembly, and
wherein the second RF coil is operable to be electrically connected to the MRI system.

Assignees

• Fischer Hubertus
• Fujita Hiroyuki
• Herczak Joseph
• Lauer Lars
• Siemens Ag
• Quality Electrodynamics

Inventors

• Fischer Hubertus
• Fujita Hiroyuki
• Herczak Joseph
• Lauer Lars

Classifications

• G01R33/34084 Primary

  implantable coils or coils being geometrically adaptable to the sample, e.g. flexible coils or coils comprising mutually movable parts · CPC title

• G01R33/34046

  Volume type coils, e.g. bird-cage coils; Quadrature bird-cage coils; Circularly polarised coils · CPC title

• G01R33/3415

  comprising arrays of sub-coils {, i.e. phased-array coils with flexible receiver channels} · CPC title

• G01R33/30

  Sample handling arrangements, e.g. sample cells, spinning mechanisms · CPC title

• G01R33/34007

  Manufacture of RF coils, e.g. using printed circuit board technology; additional hardware for providing mechanical support to the RF coil assembly or to part thereof, e.g. a support for moving the coil assembly relative to the remainder of the MR system · CPC title