"Shim pulses" for NMR spectroscopy and imaging
(2004) In Proceedings of the National Academy of Sciences 101(51). p.17576-17581- Abstract
- A way to use adiabatic radiofrequency pulses and modulated magnetic-field gradient pulses, together constituting a "shim pulse," for NMR spectroscopy and imaging is demonstrated. These pulses capitalize on phase shifts derived from probe gradient coils to compensate for nonlinear intrinsic main magnetic field homogeneity for spectroscopy, as well as for deviations from linear gradients for imaging. This approach opens up the possibility of exploiting cheaper, less-than-perfect magnets and gradient coils for NMR applications.
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/258254
- author
- Topgaard, Daniel LU ; Martin, RW ; Sakellariou, D ; Meriles, CA and Pines, A
- publishing date
- 2004
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- numerical, pulse sequence, MRI, adiabatic, modulated gradient, optimization
- in
- Proceedings of the National Academy of Sciences
- volume
- 101
- issue
- 51
- pages
- 17576 - 17581
- publisher
- National Academy of Sciences
- external identifiers
-
- wos:000225951500004
- scopus:11144244636
- ISSN
- 1091-6490
- DOI
- 10.1073/pnas.0408296102
- language
- English
- LU publication?
- no
- id
- beaf1ceb-d2b6-4bdd-83d6-5a924fa5267a (old id 258254)
- date added to LUP
- 2016-04-01 12:11:10
- date last changed
- 2022-01-26 23:58:43
@article{beaf1ceb-d2b6-4bdd-83d6-5a924fa5267a, abstract = {{A way to use adiabatic radiofrequency pulses and modulated magnetic-field gradient pulses, together constituting a "shim pulse," for NMR spectroscopy and imaging is demonstrated. These pulses capitalize on phase shifts derived from probe gradient coils to compensate for nonlinear intrinsic main magnetic field homogeneity for spectroscopy, as well as for deviations from linear gradients for imaging. This approach opens up the possibility of exploiting cheaper, less-than-perfect magnets and gradient coils for NMR applications.}}, author = {{Topgaard, Daniel and Martin, RW and Sakellariou, D and Meriles, CA and Pines, A}}, issn = {{1091-6490}}, keywords = {{numerical; pulse sequence; MRI; adiabatic; modulated gradient; optimization}}, language = {{eng}}, number = {{51}}, pages = {{17576--17581}}, publisher = {{National Academy of Sciences}}, series = {{Proceedings of the National Academy of Sciences}}, title = {{"Shim pulses" for NMR spectroscopy and imaging}}, url = {{http://dx.doi.org/10.1073/pnas.0408296102}}, doi = {{10.1073/pnas.0408296102}}, volume = {{101}}, year = {{2004}}, }