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MR imaging of motion with spatial modulation of magnetization.
Abstract
A novel magnetic resonance imaging technique provides direct imaging of motion by spatially modulating the degree of magnetization prior to imaging. The preimaging pulse sequence consists of a radio-frequency (RF) pulse to produce transverse magnetization, a magnetic field gradient to "wrap" the phase along the direction of the gradient, and a second RF pulse to mix the modulated transverse magnetization with the longitudinal magnetization. The resulting images show periodic stripes due to the modulation. Motion between the time of striping and image formation is directly demonstrated as a corresponding displacement of the stripes. This technique can be used to study heart wall motion, to distinguish slowly moving blood from thrombus, and to study the flow of blood and cerebrospinal fluid.
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Citations
Cited by
ACCF/ACR/AHA/NASCI/SCMR 2010 Expert Consensus Document on Cardiovascular Magnetic Resonance
Hundley, W. G., Bluemke, D. A., Finn, J. P., Flamm, S. D., Fogel, M. A., Friedrich, M. G., Ho, V. B., Jerosch-Herold, M., Kramer, C. M., Manning, W. J., et al. (2010) · Journal of the American College of Cardiology · doi:10.1016/j.jacc.2009.11.011 · Cited by 593
Ibrahim, E.-S. H. (2011) · Journal of Cardiovascular Magnetic Resonance · doi:10.1186/1532-429x-13-36 · Cited by 274
Does subclinical hypothyroidism affect cardiac pump performance?
Ripoli, A., Pingitore, A., Favilli, B., Bottoni, A., Turchi, S., Osman, N. F., De Marchi, D., Lombardi, M., L'Abbate, A., & Iervasi, G. (2005) · Journal of the American College of Cardiology · doi:10.1016/j.jacc.2004.10.044 · Cited by 157
Evaluation of left ventricular diastolic function with cardiac MR imaging.
Caudron, J., Fares, J., Bauer, F., & Dacher, J.-N. (2011) · Radiographics · doi:10.1148/rg.311105049 · Cited by 129
Metadata
- Authors
- Axel, L., & Dougherty, L.
- Venue
- Radiology
- Published
- 1989-06
- Volume
- 171
- Issue
- 3
- Pages
- 841-845
- ISSN
- 0033-8419 (ISSN-L)
- 1527-1315
- OpenAlex
- W2053372875
- Cited by
- 1,150
- References
- 0
- FWCI
- 11.04
- Type
- journal article
- Language
- en
- Open access
- closed
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- Axel, L., & Dougherty, L. (1989). MR imaging of motion with spatial modulation of magnetization. Radiology. https://doi.org/10.1148/radiology.171.3.2717762
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Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
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.
