Signal‐to‐noise ratio and signal‐to‐noise efficiency in SMASH imaging
نویسندگان
چکیده
منابع مشابه
Signal-to-noise ratio and signal-to-noise efficiency in SMASH imaging.
A general theory of signal-to-noise ratio (SNR) in simultaneous acquisition of spatial harmonics (SMASH) imaging is presented, and the predictions of the theory are verified in imaging experiments and in numerical simulations. In a SMASH image, multiple lines of k-space are generated simultaneously through combinations of magnetic resonance signals in a radiofrequency coil array. Here, effects ...
متن کاملVD-AUTO-SMASH imaging.
Recently a self-calibrating SMASH technique, AUTO-SMASH, was described. This technique is based on PPA with RF coil arrays using auto-calibration signals. In AUTO-SMASH, important coil sensitivity information required for successful SMASH reconstruction is obtained during the actual scan using the correlation between undersampled SMASH signal data and additionally sampled calibration signals wi...
متن کاملAccelerated cardiac imaging using the SMASH technique.
SMASH (SiMultaneous Acquisition of Spatial Harmonics) was recently introduced as a novel rapid-imaging technique. The SMASH technique uses a partially parallel acquisition strategy, using spatial information from a radiofrequency coil array to accelerate imaging. This study constitutes the first application of SMASH to cardiac magnetic resonance imaging. The increased imaging speed provided by ...
متن کاملAUTO-SMASH: a self-calibrating technique for SMASH imaging. SiMultaneous Acquisition of Spatial Harmonics.
Recently a new fast magnetic resonance imaging strategy, SMASH, has been described, which is based on partially parallel imaging with radiofrequency coil arrays. In this paper, an internal sensitivity calibration technique for the SMASH imaging method using self-calibration signals is described. Coil sensitivity information required for SMASH imaging is obtained during the actual scan using cor...
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ژورنال
عنوان ژورنال: Magnetic Resonance in Medicine
سال: 1999
ISSN: 0740-3194,1522-2594
DOI: 10.1002/(sici)1522-2594(199905)41:5<1009::aid-mrm21>3.3.co;2-w