Real-time cardiac MRI using DSPs

A real-time cardiac magnetic resonance imaging (MRI) system has been implemented using digital signal processing (DSP) technology. The system enables real-time acquisition, processing, and display of ungated cardiac movies at moderate video rates of 20 images/s. A custom graphical user interface (GU...

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Bibliographic Details
Published in:IEEE transactions on medical imaging 1999-07, Vol.18 (7), p.649-653
Main Authors: Morgan, P.N., Iannuzzelli, R.J., Epstein, F.H., Balaban, R.S.
Format: Article
Language:English
Subjects:
Biological and medical sciences
Cardiology
Computerized, statistical medical data processing and models in biomedicine
Data acquisition
Data transfer
Digital signal processing
Displays
Echo-Planar Imaging - methods
General aspects. Methods
Graphical user interfaces
Heart - anatomy & histology
Humans
Image coding
Image compression
Interactive computer graphics
Investigative techniques, diagnostic techniques (general aspects)
Magnetic resonance imaging
Medical sciences
Miscellaneous. Technology
Motion pictures
Myocardial Contraction
Parallel processing systems
Radiodiagnosis. Nmr imagery. Nmr spectrometry
Real time systems
Signal Processing, Computer-Assisted
Teleradiology - methods
Transform coding
Video compression
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Summary:A real-time cardiac magnetic resonance imaging (MRI) system has been implemented using digital signal processing (DSP) technology. The system enables real-time acquisition, processing, and display of ungated cardiac movies at moderate video rates of 20 images/s. A custom graphical user interface (GUI) provides interactive control of data acquisition parameters and image display functions. Images can be compressed into moving-picture experts group (MPEG) movies, but are displayed on the console without compression during the scan. Compared to existing real-time MRI systems, implementation with DSPs allows rapid parallel computations, fast data transfers, and greater system flexibility, including the ability to scale to multiple channels, at the expense of somewhat higher component cost.
ISSN:0278-0062
1558-254X
DOI:10.1109/42.790464