center [early systole] and bottom [end diastole]) and magnitude images (Figure, top] were reprocessed to produce anatomically related dynamic movies of brain motion. Use of agar phantoms and the skin provided an estimate of the head motion component (if present) to be eliminated in the measurement o
Monday morning grand ballroom F papers 133–140. Clinical imaging: Brain I
✍ Scribed by SW Atlas; MT Modic
- Publisher
- John Wiley and Sons
- Year
- 1991
- Tongue
- English
- Weight
- 394 KB
- Volume
- 1
- Category
- Article
- ISSN
- 1053-1807
No coin nor oath required. For personal study only.
✦ Synopsis
criteria-AIC. BIC, and HQ-can be modified for use in MR image reconstruction. It is shown that these criteria poorly penalize the uncertainty of model parameters that occur when the order is high, making it difficult to choose a suitable model order. An adaptive algorithm has been developed to overcome this problem. Images modeled with order estimates, rather than a fixed whole-image order, show a significant reduction of overmodeling artifacts while still showing reduced truncation artifacts.
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