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Hybrid ultrasound MRI for improved cardiac imaging and real-time respiration control

A hybridized dual-imaging system combining real-time ultrasound imaging and MRI was utilized for cardiac imaging at 1.5 T and 3 T. The ultrasound scanner with a programmable software interface was connected via computer to the MRI scanner. Electronic noise was eliminated with electromagnetic shieldi...

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Bibliographic Details
Main Authors: Feinberg, David A. (Author) , Giese, Daniel (Author) , Bongers, D. Andre (Author) , Ramanna, Sudhir (Author) , Zaitsev, Maxim (Author) , Markl, Michael (Author) , Günther, Matthias (Author)
Format: Article (Journal)
Language:English
Published: 23 January 2010
In: Magnetic resonance in medicine
Year: 2010, Volume: 63, Issue: 2, Pages: 290-296
ISSN:1522-2594
DOI:10.1002/mrm.22250
Online Access:Verlag, kostenfrei, Volltext: https://doi.org/10.1002/mrm.22250
Verlag, kostenfrei, Volltext: https://onlinelibrary.wiley.com/doi/abs/10.1002/mrm.22250
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Author Notes:David A. Feinberg, Daniel Giese, D. Andre Bongers, Sudhir Ramanna, Maxim Zaitsev, Michael Markl, and Matthias Günther
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Summary:A hybridized dual-imaging system combining real-time ultrasound imaging and MRI was utilized for cardiac imaging at 1.5 T and 3 T. The ultrasound scanner with a programmable software interface was connected via computer to the MRI scanner. Electronic noise was eliminated with electromagnetic shielding and grounding to the screen room. At 3 T, real-time prospective motion compensation in dynamic cine cardiac imaging was implemented using B-mode ultrasound imaging. The ultrasound technique avoided drawbacks such as signal saturation or steady-state interruption of the MR navigator gating. At 1.5 T, a low-latency real-time feedback to balanced steady state free precision MR imaging was performed in three normal volunteers. Results showed active tracking of the heart during respiratory motion and improvement in time-averaged cardiovascular images. Future studies can fully exploit the potential of the high-frequency position information provided by the ultrasound system for more advanced applications in real-time organ tracking. Magn Reson Med, 2010. © 2009 Wiley-Liss, Inc.
Item Description:Gesehen am 15.08.2023
Physical Description:Online Resource
ISSN:1522-2594
DOI:10.1002/mrm.22250

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