'Inversion recovery' presentation slideshows

Magnetic Resonance Imaging: Physical Principles

Magnetic Resonance Imaging: Physical Principles. Richard Watts, D.Phil. Weill Medical College of Cornell University, New York, USA. Nuclear Magnetic Resonance Nuclear spins Spin precession and the Larmor equation Static B0 RF excitation RF detection Spatial Encoding

427 views • 35 slides

MULTIPLE ECHO

MULTIPLE ECHO. IMPORTANT CONCEPTS. T2* SOURCES OF DEPHASING REPHASING SPIN ECHO PROCESS FREE INDUCTION DECAY (FID) WHY USE SPIN ECHO METHOD MULTIPLE ECHO INVERSION RECOVERY EFFECT OF TI ON IMAGE.

410 views • 19 slides

262 views • 14 slides

NMR

NMR. Obtaining a 13 C NMR Spectrum. 1 H Broadband decoupling Gives singlet 13 C peaks, provided no F, P, or D present in the molecule) Continuous sequence of pulses at the 1 H frequency causes a rapid reversal of spin orientation relative to the B 0 , causing coupling to 13 C to disappear.

274 views • 12 slides

Hydrogen sulfide and meningitis

Hydrogen sulfide and meningitis.

117 views • 2 slides