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A head coil for use in a magnetic resonance imaging device

IP.com Disclosure Number: IPCOM000010126D
Publication Date: 2002-Oct-24
Document File: 1 page(s) / 49K

Publishing Venue

The IP.com Prior Art Database

Abstract

ID610980

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A head coil for use in a magnetic resonance imaging device

In magnetic resonance imaging (MRI) it is known to use so-called surface coils which are positioned close to the patient’s body to be examined in order to enhance signal-to-noise ratio. An example of such a surface coil is a so-called head coil which is positioned around the patient’s head.

The figure schematically shows an improved head-coil set (1, 2). The head-coil set comprises a relatively large first coil element (1), which has such a shape that it can be placed around the front portion (3) of the patient’s head (4), and a relatively small second coil element (2), which has such a shape that it can be placed around the back portion (5) of the patient’s head (4). Thus the signal-to-noise ratio is further improved.

A known imaging technique is SENSE for which a local high signal-to-noise ratio is advantageous to suppress the noise enhancement indicated by the so-called G-factor. Simulations show that the coil elements (1, 2) encompassing the patient’s head (4) in a manner as shown in the figure significantly decrease the G-factor for SENSE in the AP direction.� � � �

Figure

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