gated SPECT
Pronunciation: GAY-ted SPEKT
Nuclear imaging technique that synchronizes SPECT acquisition with cardiac cycle to assess both perfusion and function.
Full Definition
Gated SPECT (Single Photon Emission Computed Tomography) is a nuclear cardiology technique that synchronizes image acquisition with the patient's cardiac cycle using ECG gating. This allows simultaneous assessment of myocardial perfusion and left ventricular function from a single acquisition. The cardiac cycle is divided into multiple frames (typically 8 or 16), enabling evaluation of wall motion, wall thickening, and calculation of ejection fraction. Gated SPECT provides valuable information for distinguishing attenuation artifacts from true perfusion defects and offers comprehensive cardiac assessment in patients with known or suspected coronary artery disease.
Usage
Usage note: Capitalize SPECT; use 'gated' as adjective before SPECT.
In Context
- "Gated SPECT imaging showed normal perfusion with preserved left ventricular function and ejection fraction of 58%." — Nuclear cardiology report
- "The gated SPECT study revealed both inferior perfusion defect and corresponding wall motion abnormality." — Stress myocardial perfusion report