Apparatus and method for electrical properties tomography using magnetic resonance
AssigneesUniversity-Industry Cooperation Group of Kyung Hee University, Samsung Electronics Co., Ltd.
InventorsSoo Yeol Lee, Eric Michel
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Abstract
Disclosed are an apparatus and method for imaging electrical properties of brain tissues including conductivity and permittivity using magnetic resonance imaging (MRI) signals. Electrical properties images for conductivity and permittivity of brain tissues may be obtained with high spatial resolution and high accuracy, without using a derivative which significantly amplifies noise in an MRI image, by calculating water content based on a ratio of MRI signals, calculating electrical properties from the calculated water content, and acquiring an electrical properties image for the calculated electrical properties.
Claims9
An apparatus for electrical properties tomography using magnetic resonance, the apparatus comprising:
- a radiofrequency (RF) pulse application unit configured to apply two RF pulses at intervals of different repetition times;
- an image signal acquisition unit configured to acquire two magnetic resonance imaging (MRI) signals through the applied RF pulses;
- a water content calculator configured to create a water content model from the correlation between an image ratio and water content for the acquired two MRI signals and to calculate water content of a brain tissue from the created water content model;
- and
- an electrical properties image capture unit configured to create an electrical property model from the correlation between water content and electrical properties, calculate the electrical properties from the calculated water content using the created electrical property model, and acquire an electrical properties images to calculate the electrical properties.
A method for electrical properties tomography using magnetic resonance, the method comprising:
- applying two radiofrequency (RF) pulses at intervals of different repetition times;
- acquiring two magnetic resonance imaging (MRI) signals through the applied RF pulses;
- creating a water content model from the correlation between an image ratio and water content for the acquired two MRI signals and calculating water content of a brain tissue from the created water content model;
- and
- creating an electrical property model from the correlation between water content and electrical properties, calculating the electrical properties from the calculated water content using the created electrical property model, and acquiring electrical properties images to calculate the electrical properties.
Dependencies are inferred from the claim text.