𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Effect of oxygen inhalation on relaxation times in various tissues

✍ Scribed by Eiji Tadamura; Hiroto Hatabu; Wei Li; Pottumarthi V. Prasad; Robert R. Edelman

Publisher
John Wiley and Sons
Year
1997
Tongue
English
Weight
770 KB
Volume
7
Category
Article
ISSN
1053-1807

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

The effect of the oxygen inhalation on relaxation times was evaluated in various tissues, including the myocardium, liver, spleen, skeletal muscle, subcutaneous fat, bone marrow, and arterial blood, with a [^1^H]MR system. Statistically significant decrease of T1 relaxation times was observed in the myocardium, spleen, and arterial blood after inhalation of 100% oxygen, whereas no significant change was observed in liver, skeletal muscle, subcutaneous fat, or bone marrow. The T2 relaxation time of these tissues did not differ significantly between before and after inhalation of the oxygen. These results indicate that [^1^H]MRI can be used to evaluate changes with oxygen inhalation and that the effect of the oxygen inhalation on T1 relaxation time is different among various tissues.

πŸ“œ SIMILAR VOLUMES

Organ-specific effects of oxygen and car
Organ-specific effects of oxygen and carbogen gas inhalation on tissue longitudinal relaxation times
✍ James P.B. O'Connor; Alan Jackson; Giovanni A. Buonaccorsi; David L. Buckley; Ca πŸ“‚ Article πŸ“… 2007 πŸ› John Wiley and Sons 🌐 English βš– 455 KB

## Abstract Molecular oxygen has been previously shown to shorten longitudinal relaxation time (__T__~1~) in the spleen and renal cortex, but not in the liver or fat. In this study, the magnitude and temporal evolution of this effect were investigated. Medical air, oxygen, and carbogen (95% oxygen/

Effects of intracellular pH, blood, and
Effects of intracellular pH, blood, and tissue oxygen tension on T1ρ relaxation in rat brain
✍ Mikko I. Kettunen; Olli H.J. GrΓΆhn; M. Johanna Silvennoinen; Markku Penttonen; R πŸ“‚ Article πŸ“… 2002 πŸ› John Wiley and Sons 🌐 English βš– 152 KB

The effects of intracellular pH (pH(i)), paramagnetic macroscopic, and microscopic susceptibility on T(1) in the rotating frame (T(1rho)) were studied in rat brain. Intracellular acidosis was induced by hypercapnia and pH(i), T(1rho), T(2), diffusion, and cerebral blood volume (CBV) were quantified.

The effect of degassing on the measureme
The effect of degassing on the measurement of transverse relaxation times in molten polymers
✍ Tim Bremner; Alfred Rudin πŸ“‚ Article πŸ“… 1996 πŸ› John Wiley and Sons 🌐 English βš– 825 KB

Three commercially produced polymer samples (polyethylene, polypropylene, and polystyrene) have been analyzed in the melt state using proton nuclear magnetic resonance (NMR) T2 relaxation methods using the Carr-Purcell-Meiboom-Gill (CPMG) spin-echo pulse sequence. Samples were run with exposure to a