cardiac gating


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gating

 [gāt´ing]
1. controlling access or passage through gates or channels.
2. selection of electrical signals by a gate, which passes signals only when a control signal, the gate pulse, is present, or which passes only signals with certain characteristics, such as a pulse height.
3. substrate-binding– or ligand-binding–induced opening and closing of a biologic membrane channel, believed to be due to conformational changes in proteins lining the channels.
cardiac gating selective acquisition of cardiac function information at specific points in the cardiac cycle by using information from the electrocardiographic signal to time the cardiac cycle and control image sampling. It has been used in digital subtraction angiography, computed tomography, nuclear cardiology, and magnetic resonance imaging.

car·di·ac gat·ing

using an electronic signal from the cardiac cycle to trigger an event, such as in imaging separate phases of cardiac contraction.

car·di·ac gat·ing

(kahr'dē-ak gāt'ing)
Using an electronic signal from the cardiac cycle to trigger an event, such as in imaging separate phases of cardiac contraction.

cardiac gating

Medical image information consistently collected during a specific phase of the cardiac cycle.
See also: gating
References in periodicals archive ?
The Magnitude/3150's advanced digital signal processing ECG and digital cardiac gating capabilities make it an ideal choice for the sophisticated Japanese marketplace.
The Vantage CGV features the latest technology and applications optimized to perform advanced cardiac MRI procedures, including eight-channel radio frequency (RF) electronic components, Toshiba's cardiac/torso SPEEDER coil, and software packages designed for high-quality cardiac MRI studies, including Respiratory, Peripheral Pulse and Cardiac Gating.
Albert Sinusas of Yale University is the first researcher in the country to present findings derived from the cardiac gating subsystem recently made available on Gamma Medica's X-SPECT pre-clinical imaging system.
today announced immediate availability of a cardiac gating sub-system for its X-SPECT(R) preclinical imaging system.