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Imaging of the active B1 field in vivo
Abstract
The authors describe a method for accurate In vivo muttislice imaging of the active component of the B1 field which is based on a previously proposed method, which uses the signal intensity ratio of two images measured with different excitation angles, and a repetition time TR≥ 5 T 1 The new method essentially reduces repetition and scan time by means of an additional compensating pulse. The suppression of T 1 effects by this pulse are verified with simulations and measurements. Further investigations concerned the influence of slice selective excitation and magnetization transfer in multislice imaging to the B 1 field determination. The stability and accuracy of the presented method is shown by several phantom and in vivo measurements. With the described method the active B 1 field can be determined in vivo in 23 cross‐sections in less than 6 min.
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Cited by
A nonparametric method for automatic correction of intensity nonuniformity in MRI data
Sled, J. G., Zijdenbos, A. P., & Evans, A. C. (1998) · IEEE Transactions on Medical Imaging · doi:10.1109/42.668698 · Cited by 4,731
MP2RAGE, a self bias-field corrected sequence for improved segmentation and T1-mapping at high field
Marques, J. P., Kober, T., Krueger, G., van der Zwaag, W., Van de Moortele, P.-F., & Gruetter, R. (2010) · NeuroImage · doi:10.1016/j.neuroimage.2009.10.002 · Cited by 1,453
Saturated double‐angle method for rapid B1+ mapping
Cunningham, C. H., Pauly, J. M., & Nayak, K. S. (2006) · Magnetic Resonance in Medicine · doi:10.1002/mrm.20896 · Cited by 353
Using high-resolution quantitative mapping of R1 as an index of cortical myelination
Lutti, A., Dick, F., Sereno, M. I., & Weiskopf, N. (2014) · NeuroImage · doi:10.1016/j.neuroimage.2013.06.005 · Cited by 346
Rapid B1+ mapping using a preconditioning RF pulse with TurboFLASH readout
Chung, S., Kim, D., Breton, E., & Axel, L. (2010) · Magnetic Resonance in Medicine · doi:10.1002/mrm.22423 · Cited by 304
Metadata
- Authors
- Stollberger, R., & Wach, P.
- Venue
- Magnetic Resonance in Medicine
- Publisher
- Wiley
- Published
- 1996-02
- Volume
- 35
- Issue
- 2
- Pages
- 246-251
- ISSN
- 0740-3194 (ISSN-L)
- 1522-2594
- OpenAlex
- W1486803184
- Cited by
- 357
- References
- 0
- FWCI
- 4.00
- Type
- journal article
- Language
- en
- Open access
- closed
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- Stollberger, R., & Wach, P. (1996). Imaging of the active B1 field in vivo. Magnetic Resonance in Medicine. https://doi.org/10.1002/mrm.1910350217
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
