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USING RADIO-FREQUENCY IDENTIFICATION (RFID) TO DETECT COIL ABUSE

IP.com Disclosure Number: IPCOM000247297D
Publication Date: 2016-Aug-19
Document File: 4 page(s) / 103K

Publishing Venue

The IP.com Prior Art Database

Abstract

A method and a system to detect coil abuse condition in a magnetic resonance imaging (MRI) system are disclosed. The method employs use of radiofrequency identification (RFID) to detect coil abuse condition in the MRI system. The system includes a RFID labeled surface coil and a RFID detector. The RFID labeled surface coil is placed inside a magnet bore. The RFID detector is attached to the patient bore. The method uses RFID to identify the coil entering the patient bore by comparing with the coil name read from coil port. The system, consequently, detects coil abuse condition and informs the operator to protect the coil and provide background message to field engineers for trouble shooting.

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USING RADIO-FREQUENCY IDENTIFICATION (RFID) TO DETECT COIL ABUSE

BACKGROUND

The present invention relates generally to a magnetic resonance imaging (MRI) system and more particularly to a method and system to detect coil abuse condition in the MRI system.

          

Generally in a magnetic resonance imaging (MRI) system, a surface coil, for example, a head and neck unit (HNU) coil is heavy and difficult to move by an operator. In some instances, there is a need to scan with other coils. Therefore, the operators unplug the surface coil and plug other coil into the coil port. Due to heavy weight and difficulty in positioning the surface coil, operators are not willing to always remove the surface coil from the cradle, and therefore leave the surface coil on a cradle. Although the surface coils have passive decoupling circuit, the surface coils are in effective in comparison to an active decoupling circuit. Therefore, while scanning, in case the surface coil is left unplugged on the cradle inside a magnet bore, there exists a possibility of breaking of some elements in the surface coil. Field engineers report such a condition as coil abuse. However, there is no conventional technique known in the art that detects the coil abuse condition.

In case of such coil abuse, field engineers communicate to the operators to remove the surface coil from the cradle, if the operators are not using the surface coil. For example, the operators leave HNU coil on the cradle and use the coil as a pillow. When there is a need to scan with other coils, the operators unplug HNU and plug other coil into the coil port, and scan with HNU coil placed on the cradle.

A conventional technique for coil detection uses read signal, such as, magnetic resonance (MR) signal or coil identification (ID) from coil circuit to MR receive chain. The conventional technique detects coil type and position. However, the technique does not detect coil abuse condition.

Therefore, it would be desirable to have a technique that detects coil abuse condition in the MRI system.

BRIEF DESCRIPTION OF DRAWINGS

Figure 1 depicts a system with radiofrequency identification (RFID) labeled surface coil and RFID detector placed on a patient bore.

Figure 2 depicts a flowchart that describes a method of detecting coil abuse condition in a magnetic resonance imaging (MRI) system.

DETAILED DESCRIPTION

A method and a system to detect coil abuse condition in a magnetic resonance imaging (MRI) system are disclosed. The method employs use of radiofrequency identification (RFID) to detect coil abuse condition in the MRI system. The system inclu...