Title:
MAGNETIC RESONANCE IMAGING APPARATUS AND TEMPERATURE INFORMATION MEASUREMENT METHOD
Document Type and Number:
WIPO Patent Application WO/2015/033725
Kind Code:
A1
Abstract:
Provided is a technique for improving in vivo temperature measurement accuracy in temperature measurement using MRS/MRSI. A cerebrospinal fluid suppression sequence for suppressing the nuclear magnetic resonance signal from cerebrospinal fluid without affecting the nuclear magnetic resonance signal from a desired metabolite is performed prior to the signal measurement sequence for measuring the respective nuclear magnetic resonance signals for water and the metabolite. From the nuclear magnetic resonance signals for water and the metabolite thereby obtained in which the nuclear magnetic resonance signal from cerebrospinal fluid has been suppressed, spectra are obtained. By fitting the spectral peaks obtained to a model function, the resonance frequencies of the water and the metabolite are obtained and temperature is calculated using the difference thereof.
Inventors:
SHIRAI TORU (JP)
YOKOSAWA SUGURU (JP)
OCHI HISAAKI (JP)
BITO YOSHITAKA (JP)
YOKOSAWA SUGURU (JP)
OCHI HISAAKI (JP)
BITO YOSHITAKA (JP)
Application Number:
PCT/JP2014/070564
Publication Date:
March 12, 2015
Filing Date:
August 05, 2014
Export Citation:
Assignee:
HITACHI MEDICAL CORP (JP)
International Classes:
A61B5/055
Foreign References:
| JP2012157466A | 2012-08-23 | |||
| JP2009095491A | 2009-05-07 |
Attorney, Agent or Firm:
Sannozaka Patent Law Firm (JP)
Patent business corporation The Sanno hill patent firm (JP)
Patent business corporation The Sanno hill patent firm (JP)
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