The conundrum of ECG-gated carotid arterial imaging with navigator corrected respiratory motion
نویسندگان
چکیده
منابع مشابه
Renal perfusion imaging with two-dimensional navigator gated arterial spin labeling.
PURPOSE To develop a navigator technique enabling free-breathing acquisition to afford sufficient signal averaging for quantitative renal perfusion measurement using arterial spin labeling MRI. METHODS A novel two-dimensional (2D) navigator technique was implemented in concert with flow-sensitive alternating inversion recovery (FAIR) preparation and true fast imaging with steady precession (T...
متن کاملAccelerated and navigator-gated look-locker imaging for cardiac T1 Estimation (ANGIE) with reduced motion artifact
Background T1 mapping of the left ventricle is routinely performed using Modified Look-Locker Inversion Recovery (MOLLI) [1] in a variety of disease settings [2]. MOLLI requires relatively long breathholds, and consequently sequences of MOLLI images may be misregistered due to respiratory drift. We sought to develop a T1 mapping sequence that would not require breathholding and would not have m...
متن کاملMotion Correction on Dual ECG and Respiratory Gated 3D Cardiac PET/CT Data
Gating The PET was divided into six respiratory and six cardiac phases. The respiratory signal was acquired by tracking the position of a white spot on a black disc placed on the abdomen of the patient with a video camera. A LED diode was used for synchronizing the respiratory signal with the listmode PET data. The ECG signal was acquired using the ECG port of the scanner. The PET data was then...
متن کاملRespiratory Motion Detection and Correction in ECG-Gated SPECT: a New Approach
OBJECTIVE Gated myocardial perfusion single-photon emission computed tomography (GSPECT) has been established as an accurate and reproducible diagnostic and prognostic technique for the assessment of myocardial perfusion and function. Respiratory motion is among the major factors that may affect the quality of myocardial perfusion imaging (MPI) and consequently the accuracy of the examination. ...
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ژورنال
عنوان ژورنال: Journal of Cardiovascular Magnetic Resonance
سال: 2010
ISSN: 1532-429X
DOI: 10.1186/1532-429x-12-s1-p135