Strain correction in interleaved strain-encoded (SENC) cardiac MR

Abdallah G. Motaal, Nael Fakhry Osman

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

Abstract

The strain encoding (SENC) technique directly encodes regional strain of the heart into the acquired MR images and produces two images with two different tunings so that longitudinal strain, on the short-axis view, or circumferential strain on the long-axis view, are measured. Interleaving acquisition is used to shorten the acquisition time of the two tuned images by 50%, but it suffers from errors in the strain calculations due to inter-tunings motion of the heart. In this work, we propose a method to correct for the inter-tunings motion by estimating the motion-induced shift in the spatial frequency of the encoding pattern, which depends on the strain rate. Numerical data was generated to test the proposed method and real images of human subjects were used for validation. The proposed method corrected the measured strain values so they became nearly identical to the original ones. The results show an improvement in strain calculations so as to relax the imaging constraints on spatial and temporal resolutions and improve image quality.

Original languageEnglish (US)
Title of host publicationProgress in Biomedical Optics and Imaging - Proceedings of SPIE
Volume7626
DOIs
StatePublished - 2010
EventMedical Imaging 2010 - Biomedical Applications in Molecular, Structural, and Functional Imaging - San Diego, CA, United States
Duration: Feb 14 2010Feb 16 2010

Other

OtherMedical Imaging 2010 - Biomedical Applications in Molecular, Structural, and Functional Imaging
CountryUnited States
CitySan Diego, CA
Period2/14/102/16/10

Fingerprint

tuning
acquisition
Tuning
coding
temporal resolution
strain rate
estimating
spatial resolution
Image quality
Strain rate
shift
Imaging techniques

Keywords

  • Cardiac function imaging
  • Interleaving acquisition
  • Magnetic resonance imaging
  • SENC
  • Strain encoded
  • Tissue deformation

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Electronic, Optical and Magnetic Materials
  • Biomaterials
  • Radiology Nuclear Medicine and imaging

Cite this

Motaal, A. G., & Osman, N. F. (2010). Strain correction in interleaved strain-encoded (SENC) cardiac MR. In Progress in Biomedical Optics and Imaging - Proceedings of SPIE (Vol. 7626). [762602] https://doi.org/10.1117/12.841777

Strain correction in interleaved strain-encoded (SENC) cardiac MR. / Motaal, Abdallah G.; Osman, Nael Fakhry.

Progress in Biomedical Optics and Imaging - Proceedings of SPIE. Vol. 7626 2010. 762602.

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

Motaal, AG & Osman, NF 2010, Strain correction in interleaved strain-encoded (SENC) cardiac MR. in Progress in Biomedical Optics and Imaging - Proceedings of SPIE. vol. 7626, 762602, Medical Imaging 2010 - Biomedical Applications in Molecular, Structural, and Functional Imaging, San Diego, CA, United States, 2/14/10. https://doi.org/10.1117/12.841777
Motaal AG, Osman NF. Strain correction in interleaved strain-encoded (SENC) cardiac MR. In Progress in Biomedical Optics and Imaging - Proceedings of SPIE. Vol. 7626. 2010. 762602 https://doi.org/10.1117/12.841777
Motaal, Abdallah G. ; Osman, Nael Fakhry. / Strain correction in interleaved strain-encoded (SENC) cardiac MR. Progress in Biomedical Optics and Imaging - Proceedings of SPIE. Vol. 7626 2010.
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