Rapid 3D whole-heart cine imaging using golden ratio stack of spirals
Autor: | Javier Montalt-Tordera, Grzegorz T Kowalik, Vivek Muthurangu, Jennifer A. Steeden, Alexander Gotschy |
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Rok vydání: | 2020 |
Předmět: |
Adult
Male Similarity (geometry) Computer science Image quality Biomedical Engineering Biophysics Magnetic Resonance Imaging Cine 030218 nuclear medicine & medical imaging Image (mathematics) Breath Holding 03 medical and health sciences Imaging Three-Dimensional 0302 clinical medicine Data acquisition Stack (abstract data type) Humans Computer Simulation Radiology Nuclear Medicine and imaging Golden ratio Computer vision Prospective Studies business.industry Reproducibility of Results Heart Compressed sensing Trajectory Female Artificial intelligence business 030217 neurology & neurosurgery |
Zdroj: | Magnetic Resonance Imaging. 72:1-7 |
ISSN: | 0730-725X |
Popis: | Three-dimensional cine imaging provides a wealth of information about cardiac anatomy and function, but its use in the clinical environment is limited because data acquisition is very time consuming. In this work, a free-breathing 3D whole-heart cine imaging framework was developed using a time-efficient stack of spirals trajectory and accelerated reconstruction. Two suitable view ordering methods are considered with different spacing between k-space readouts in the partition dimension: uniform and tiny golden ratio based. A simulation study suggested the latter did not present any benefits in terms of similarity to the true image. The proposed method was subsequently tested on 10 prospective subjects and compared with conventional multi-slice breath-hold imaging. Image quality was evaluated using objective and subjective scores and ventricular measurements were compared to assess clinical accuracy. Image quality was lower in the proposed technique than in breath-hold images but good agreement was found in clinically relevant ventricular measurements. In addition, the proposed method was fast to acquire, required minimal planning and provided full anatomical coverage with isotropic resolution. |
Databáze: | OpenAIRE |
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