Method and apparatus for examining a substance,particularly...

Details Method and apparatus for examining a substance,particularly... Method and apparatus for examining a substance,particularly...

A - Human Necessities

61

B

A61B 5/05 (2006.01) G01V 3/00 (2006.01)

Patent

CA 2533161

A method and apparatus for examining a substance volume to characterize its type, particularly useful for examining tissue to characterize it as cancerous or non-cancerous, as shown, by applying a polarizing magnetic field through the examined substance: applying RF pulses locally to the examined substance volume such as to invoke electrical impedance (EI) responses signals corresponding to the electrical impedance of the substance, and magnetic resonance (MR) responses signals corresponding to the MR properties of the substance; detecting the EI and MR response signals; and utilizing the detected response signals for characterizing the examined substance volume type.

L'invention concerne un procédé et un appareil pour examiner le volume d'une substance, afin de déterminer son type, notamment pour examiner un tissu afin de déterminer s'il est cancéreux ou non. Ce procédé consiste à appliquer un champ magnétique de polarisation à travers la substance examinée, à appliquer des impulsions RF localement sur le volume de la substance examinée de façon à provoquer des signaux de réponse d'impédance électrique correspondant à l'impédance électrique de la substance, et des signaux de réponse de résonance magnétique correspondant aux propriétés de résonance magnétique de la substance, à détecter ces signaux de réponse d'impédance électrique et de résonance magnétique, et à utiliser les signaux de réponse détectés pour caractériser le type de la substance examinée.

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