Current density imaging
It employs two techniques for spatially mapping electrical current pathways through tissue:
- LF-CDI, low-frequency CDI, the original implementation developed at the University of Toronto. In this technique, low frequency (LF) electrical currents are injected into the tissue. These currents generate magnetic fields, which are then measured using MRI techniques. The current pathways are then computed and spatially mapped.
- RF-CDI, radio frequency CDI, a rotating frame of reference version of LF-CDI. This allows measurement of a single component of current density, without requiring subject rotation. The high frequency current that is injected into tissue also does not cause the muscle twitching often encountered using LF-CDI, allowing in-vivo measurements on human subjects.
Wikimedia Foundation. 2010.
Look at other dictionaries:
Magnetic resonance imaging — MRI redirects here. For other meanings of MRI or Mri, see MRI (disambiguation). Magnetic resonance imaging Intervention Sagittal MR image of the knee ICD 10 PCS B?3?ZZZ … Wikipedia
Delayed Gadolinium Enhanced Magnetic Resonance Imaging of Cartilage (dGEMRIC) — Introduction Delayed Gadolinium Enhanced Magnetic Resonance Imaging of Cartilage or dGEMRIC measures the fixed charge density of articular cartilage using the Spin lattice relaxation time. Current research is investigating the clinical… … Wikipedia
CDI — The three letter acronym CDI may stand for:* Capacitor discharge ignition, an ignition system common for motorcycle engines * Carbonyldiimidazole, a peptide coupling agent * Cargo Disposition Instructions * Category Development Index is a measure … Wikipedia
Measuring instrument — Captain Nemo and Professor Aronnax contemplating measuring instruments in Twenty Thousand Leagues Under the Sea … Wikipedia
Transmission electron microscopy — A TEM image of the polio virus. The polio virus is 30 nm in size. Transmission electron microscopy (TEM) is a microscopy technique whereby a beam of electrons is transmitted through an ultra thin specimen, interacting with the specimen as it… … Wikipedia
Environmental scanning electron microscope — Wool fibers imaged in an ESEM by the use of two symmetrical plastic scintillating backscattered electron detectors … Wikipedia
Photoconductive atomic force microscopy — (pc AFM) is a scientific technique.. Multi layer photovoltaic cells have gained popularity since mid 1980s. At the time, research was primarily focused on single layer photovoltaic (PV) devices between two electrodes, in which PV properties… … Wikipedia
Carbon nanotube — Not to be confused with Carbon fiber. Part of a series of articles on Nanomaterials Fullerenes … Wikipedia
ESEM — stands for environmental scanning electron microscope. This is a scanning electron microscope (SEM) that allows a gaseous environment in the specimen chamber. Whereas all conventional microscopes operate in vacuum, the ESEM has added a new… … Wikipedia
Magnetoencephalography — Diagnostics Patient undergoing an MEG MeSH … Wikipedia