Simultaneous temperature and regional blood volume measurements in human muscle using an MRI fast diffusion technique

The thermal dependence of the translational diffusion coefficient and of the regional blood volume was investigated in vivo by using a special MR pulsed gradient technique with reduced sensitivity to bulk tissue motion. Measurements were done at 0.5 T, using a small gradient insert. The diffusion coefficient of muscle water was calibrated against thermocouple‐measured temperature in vitro, both with the muscle fibers parallel and perpendicular to the diffusion gradient.

[1]  J. Tsuruda,et al.  Diffusion-weighted MR imaging of anisotropic water diffusion in cat central nervous system. , 1990, Radiology.

[2]  D Le Bihan,et al.  Temperature mapping with MR imaging of molecular diffusion: application to hyperthermia. , 1989, Radiology.

[3]  P Tikuisis,et al.  In vivo thermal conductivity of the human forearm tissues. , 1991, Journal of applied physiology.

[4]  T. Foster,et al.  A review of normal tissue hydrogen NMR relaxation times and relaxation mechanisms from 1-100 MHz: dependence on tissue type, NMR frequency, temperature, species, excision, and age. , 1984, Medical physics.

[5]  J F Harmon,et al.  Pulsed NMR measurements of the diffusion constant of water in muscle. , 1971, Archives of biochemistry and biophysics.

[6]  H. Carr,et al.  DIFFUSION AND NUCLEAR SPIN RELAXATION IN WATER , 1958 .

[7]  C F Hazlewood,et al.  Nuclear magnetic resonance measurement of skeletal muscle: anisotrophy of the diffusion coefficient of the intracellular water. , 1976, Biophysical journal.

[8]  C F Hazlewood,et al.  IMPLICATIONS OF DIFFUSION COEFFICIENT MEASUREMENTS FOR THE STRUCTURE OF CELLULAR WATER * , 1973, Annals of the New York Academy of Sciences.

[9]  J. E. Tanner,et al.  Spin diffusion measurements : spin echoes in the presence of a time-dependent field gradient , 1965 .

[10]  David M. Williams,et al.  Quantitative measurement of tissue perfusion and diffusion in vivo , 1991, Magnetic resonance in medicine.

[11]  J. Pekar,et al.  Echo-planar imaging of intravoxel incoherent motion. , 1990, Radiology.

[12]  Design data for efficient axial gradient coils: Application to NMR imaging , 1985, Magnetic resonance in medicine.

[13]  A. S. Hall,et al.  Observation by MR imaging of in vivo temperature changes induced by radio frequency hyperthermia. , 1990, Journal of computer assisted tomography.

[14]  D. Le Bihan,et al.  Separation of diffusion and perfusion in intravoxel incoherent motion MR imaging. , 1988, Radiology.

[15]  T. Chenevert,et al.  Anisotropic diffusion in human white matter: demonstration with MR techniques in vivo. , 1990, Radiology.

[16]  R. Blinc,et al.  Anisotropy of Self-Diffusion in the Smectic-A and Smectic-C Phases , 1974 .

[17]  E. Stejskal Use of Spin Echoes in a Pulsed Magnetic‐Field Gradient to Study Anisotropic, Restricted Diffusion and Flow , 1965 .

[18]  A. S. Hall,et al.  Measurement of changes in tissue temperature using MR imaging. , 1986, Journal of computer assisted tomography.

[19]  Z H Cho,et al.  The effects of random directional distributed flow in nuclear magnetic resonance imaging. , 1987, Medical physics.

[20]  M E Moseley,et al.  Comparison of diffusion‐ and T2‐weighted MRI for the early detection of cerebral ischemia and reperfusion in rats , 1991, Magnetic resonance in medicine.

[21]  J R MacFall,et al.  The use of gradient flow compensation to separate diffusion and microcirculatory flow in MRI , 1991, Magnetic resonance in medicine.

[22]  C A Cuenod,et al.  Temperature changes induced in human muscle by radio-frequency H-1 decoupling: measurement with an MR imaging diffusion technique. Work in progress. , 1992, Radiology.

[23]  R L Ehman,et al.  Translational molecular self-diffusion in magnetic resonance imaging. II. Measurement of the self-diffusion coefficient. , 1984, Investigative radiology.

[24]  J. E. Tanner,et al.  Self diffusion of water in frog muscle. , 1979, Biophysical journal.