Use of high-resolution proton nuclear magnetic resonance spectroscopy
for rapid multi-component analysis of urine.
In contrast, the magnetic resonance spectroscopy
revealed a significant decrease in the metabolite ratio of N-acetylaspartate to creatinine following the surgery, which indicated a disturbance in neuronal cell metabolism.
Most of these techniques--harmonic magnetic resonance elastography, optical mammography and magnetic resonance spectroscopy
, to name a few--have encouraging early results, but have only been tested in handfuls of patients, according to developers of the technologies.
Instead of examining muscle composition by surgically removing tiny bits of muscle tissue, Park and her co-workers placed the subjects' arms in the bore of a superconducting magnet and used magnetic resonance spectroscopy
to monitor how the phosphorus in various muscle metabolites reacted to the magnet.
They underwent a specialized magnetic resonance spectroscopy
brain scan, an imaging technique that allows measurement of the amount of GABA in small regions of the brain.
Brain scans using proton magnetic resonance spectroscopy
showed an increased ratio of choline to creatine in the basal ganglia and white matter in the HCV-infected patients-findings that were reported previously by these investigators (Hepatology 35:433-39, 2002).
Magnetic resonance spectroscopy
(MRS), which measures brain chemicals, detected diminished levels of N-acetyl-aspartate (NAA) in the left and right basal ganglia of veterans with any of three identified Gulf War syndromes.
They then made up a solution of these four sugars and used nuclear magnetic resonance spectroscopy
and a calorimeter to analyze its properties as it cooled.
To overcome these shortcomings, Antonio Randazzo and Anders Malmendal's team turned to nuclear magnetic resonance spectroscopy
(NMR) to test its abilities as "a magnetic tongue.
In the last few years, advances in nuclear magnetic resonance spectroscopy
have allowed medical researchers to gather much information about the molecular chemistry that takes place inside living cells (SN: 10/15/83, p.
The team used magnetic resonance spectroscopy
to directly measure GABA levels in the brain both before and after a low-level current was delivered through research participants' scalps.