Off-resonance saturation magnetic resonance imaging of superparamagnetic polymeric micelles

Chalermchai Khemtong, Chase W. Kessinger, Osamu Togao, Jimin Ren, Masaya Takahashi, A. Dean Sherry, Jinming Gao

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Abstract

An off-resonance saturation (ORS) method was used for magnetic resonance imaging of superparamagnetic polymeric micelles (SPPM). SPPM was produced by encapsulating a cluster of magnetite nanoparticles (9.9±0.4 nm in diameter) in poly(ethylene glycol)-b-poly(D,L-lactide) (PEGPLA) copolymer micelles (micelle diameter: 60±9 nm). In ORS MRI, a selective radiofrequency (RF) pulse was applied at an off-resonance position (0-50 ppm) from the bulk water signal, and the SPPM particles were visualized by the contrast on a division image constructed from two images acquired with and without pre-saturation. Here, the effects of saturation offset frequencies, saturation durations, and RF powers on ORS contrasts were investigated as these parameters are critical for optimization of ORS MRI for in vivo imaging applications. The ability to turn "ON" and "OFF" ORS contrast of SPPM solutions permits for an accurate image subtraction and a contrast enhancement to visualize SPPM probes for in vivo imaging of cancer.

Original languageEnglish
Title of host publicationProceedings of the 31st Annual International Conference of the IEEE Engineering in Medicine and Biology Society
Subtitle of host publicationEngineering the Future of Biomedicine, EMBC 2009
PublisherIEEE Computer Society
Pages4095-4097
Number of pages3
ISBN (Print)9781424432967
DOIs
Publication statusPublished - Jan 1 2009
Externally publishedYes
Event31st Annual International Conference of the IEEE Engineering in Medicine and Biology Society: Engineering the Future of Biomedicine, EMBC 2009 - Minneapolis, MN, United States
Duration: Sep 2 2009Sep 6 2009

Publication series

NameProceedings of the 31st Annual International Conference of the IEEE Engineering in Medicine and Biology Society: Engineering the Future of Biomedicine, EMBC 2009

Other

Other31st Annual International Conference of the IEEE Engineering in Medicine and Biology Society: Engineering the Future of Biomedicine, EMBC 2009
CountryUnited States
CityMinneapolis, MN
Period9/2/099/6/09

Fingerprint

Micelles
Magnetic resonance
Magnetic Resonance Imaging
Imaging techniques
Magnetic resonance imaging
Magnetite Nanoparticles
Magnetite nanoparticles
Ethylene Glycol
Particles (particulate matter)
Polyethylene glycols
Copolymers
Water
Neoplasms

All Science Journal Classification (ASJC) codes

  • Cell Biology
  • Developmental Biology
  • Biomedical Engineering
  • Medicine(all)

Cite this

Khemtong, C., Kessinger, C. W., Togao, O., Ren, J., Takahashi, M., Sherry, A. D., & Gao, J. (2009). Off-resonance saturation magnetic resonance imaging of superparamagnetic polymeric micelles. In Proceedings of the 31st Annual International Conference of the IEEE Engineering in Medicine and Biology Society: Engineering the Future of Biomedicine, EMBC 2009 (pp. 4095-4097). [5334550] (Proceedings of the 31st Annual International Conference of the IEEE Engineering in Medicine and Biology Society: Engineering the Future of Biomedicine, EMBC 2009). IEEE Computer Society. https://doi.org/10.1109/IEMBS.2009.5334550

Off-resonance saturation magnetic resonance imaging of superparamagnetic polymeric micelles. / Khemtong, Chalermchai; Kessinger, Chase W.; Togao, Osamu; Ren, Jimin; Takahashi, Masaya; Sherry, A. Dean; Gao, Jinming.

Proceedings of the 31st Annual International Conference of the IEEE Engineering in Medicine and Biology Society: Engineering the Future of Biomedicine, EMBC 2009. IEEE Computer Society, 2009. p. 4095-4097 5334550 (Proceedings of the 31st Annual International Conference of the IEEE Engineering in Medicine and Biology Society: Engineering the Future of Biomedicine, EMBC 2009).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Khemtong, C, Kessinger, CW, Togao, O, Ren, J, Takahashi, M, Sherry, AD & Gao, J 2009, Off-resonance saturation magnetic resonance imaging of superparamagnetic polymeric micelles. in Proceedings of the 31st Annual International Conference of the IEEE Engineering in Medicine and Biology Society: Engineering the Future of Biomedicine, EMBC 2009., 5334550, Proceedings of the 31st Annual International Conference of the IEEE Engineering in Medicine and Biology Society: Engineering the Future of Biomedicine, EMBC 2009, IEEE Computer Society, pp. 4095-4097, 31st Annual International Conference of the IEEE Engineering in Medicine and Biology Society: Engineering the Future of Biomedicine, EMBC 2009, Minneapolis, MN, United States, 9/2/09. https://doi.org/10.1109/IEMBS.2009.5334550
Khemtong C, Kessinger CW, Togao O, Ren J, Takahashi M, Sherry AD et al. Off-resonance saturation magnetic resonance imaging of superparamagnetic polymeric micelles. In Proceedings of the 31st Annual International Conference of the IEEE Engineering in Medicine and Biology Society: Engineering the Future of Biomedicine, EMBC 2009. IEEE Computer Society. 2009. p. 4095-4097. 5334550. (Proceedings of the 31st Annual International Conference of the IEEE Engineering in Medicine and Biology Society: Engineering the Future of Biomedicine, EMBC 2009). https://doi.org/10.1109/IEMBS.2009.5334550
Khemtong, Chalermchai ; Kessinger, Chase W. ; Togao, Osamu ; Ren, Jimin ; Takahashi, Masaya ; Sherry, A. Dean ; Gao, Jinming. / Off-resonance saturation magnetic resonance imaging of superparamagnetic polymeric micelles. Proceedings of the 31st Annual International Conference of the IEEE Engineering in Medicine and Biology Society: Engineering the Future of Biomedicine, EMBC 2009. IEEE Computer Society, 2009. pp. 4095-4097 (Proceedings of the 31st Annual International Conference of the IEEE Engineering in Medicine and Biology Society: Engineering the Future of Biomedicine, EMBC 2009).
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