Theory of Coherent and Incoherent Nuclear Spin-Dephasing in the Heart
arXiv:cond-mat/9910006 · doi:10.1103/PhysRevLett.83.4215
Abstract
We present an analytical theory of susceptibility induced nuclear spin dephasing in the capillary network of myocardium. Using a strong collision approach, equations are obtained for the relaxation rate of the free induction and the spin echo decay. Simulation and experimental data are well predicted by the theory. Since paramagnetic deoxyhemoglobin as the origin of nuclear spin dephasing has a higher tissue concentration in myocardium supplied by a stenotic, i. e. significantly narrowed, coronary artery, spin dephasing might serve as a diagnostic tool. Our approach can be modified for capillary networks in other tissues than myocardium and may be applied in material science.
arXiv comment4 pages, 2 figures, PRL in press
Cited by in corpus (6)
- Transverse NMR relaxation as a probe of mesoscopic structure
- Transverse NMR relaxation in magnetically heterogeneous media
- Spin Dephasing in the Extended Strong Collision Approximation
- Freier Induktionszerfall und Linienform im dreidimensionalen magnetischen Dipolfeld
- Susceptibility effects in nuclear magnetic resonance imaging
- Spin Dephasing in Krogh's Capillary Model of the Myocardium