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Zoom phased array knee coil for MRI

A phased array and coil technology, applied in the field of medical imaging systems, can solve the problems of reduced sensitivity and image resolution, etc.

Inactive Publication Date: 2006-12-20
GENERAL ELECTRIC CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when imaging with a smaller field of view (FOV) such as 10cm, at the same resolution, the SNR degrades due to the reduced signal in each pixel
resulting in reduced sensitivity and image resolution

Method used

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  • Zoom phased array knee coil for MRI
  • Zoom phased array knee coil for MRI
  • Zoom phased array knee coil for MRI

Examples

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Embodiment Construction

[0017] Various embodiments of the present invention provide a dual coverage transmit / receive (T / R) phased array knee coil for magnetic resonance imaging (MRI). The T / R phased array knee coil generally provides a first mode of operation or imaging, in particular a zoom mode with a first S / I coverage of, for example, about 10 cm, and a second mode of operation or imaging mode, in particular a full coverage mode, with a second S / I coverage of eg about 16 cm. A smaller field of view (FOV) of the knee can be used without loss of SNR. Thus, there is provided a T / R phased array knee coil configured to have a first mode of operation and a second mode of operation, with a respective field of view provided for each mode of operation.

[0018] In particular, as figure 1 As shown, the dual-coverage T / R phased array knee coil 50 generally includes a transmit coil array 52 and a receive coil array 54 . In an exemplary embodiment, transmit coil array 52 is a 12-rung or element quadrature ...

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PUM

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Abstract

A phased-array knee coil is provided and includes a transmit coil array and a receive coil array having a plurality of coils configured to provide a first imaging mode and a second imaging mode.

Description

[0001] Cross References to Related Applications [0002] This application claims priority and the benefit of the filing dates of U.S. Provisional Application 60 / 571,223, filed May 14, 2004, and U.S. Provisional Application 60 / 523,660, filed November 19, 2003, both of which are hereby incorporated by reference in their entirety . Background of the invention [0003] The present invention relates generally to medical imaging systems, and more particularly to a knee coil array for a Magnetic Resonance Imaging (MRI) system. [0004] MRI or nuclear magnetic resonance (NMR) imaging is generally used to provide spatial discrimination of resonant interactions between radio frequency (RF) waves and atomic nuclei in magnetic fields. In particular, MRI uses the nuclear spins of hydrogen atoms of water molecules in the human body, which are polarized by the uniform, stable, strong magnetic field of a magnet. The magnetic field is usually referred to as B 0 or the main magnetic field. ...

Claims

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Application Information

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IPC IPC(8): G01R33/3415
Inventor T·郑赵树人R·安德森L·佩特罗普洛斯
Owner GENERAL ELECTRIC CO
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