Prior-information-driven multiple contrast projection of T2 weighted magnetic resonance images

Srinivasan Rajagopalan, Richard A. Robb

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

Abstract

Despite the tremendous improvements in MR imaging, the optimization of fast imaging techniques for display of T2 contrast has not yet been accomplished. Existing methods that make use of prior-information (feature-recognizing MRI, constrained reconstruction techniques, dynamic imaging etc) are sub-optimal. In this paper, we present a fast, robust method to enhance the T2 related contrast in an MRI image acquired at, but not restricted to, "just-enough-to-highlight-T2" repetition time so as to produce a computed mosaic of the same image at different repetition (TR) and echo (TE) times. This leads to substantial reduction in scan time and simultaneous provision of multiple snapshots of the same image at different TR and TE time settings. The enhanced mapping is performed using a feature-guided, non-linear equalization technique based on prior knowledge. The proposed methodology could be synergistically cascaded with other fast imaging techniques to further improve the acquisition rate. The clinical applications of the proposed contrast enhancement technique include: a pre-scan application in which projected images assist in prescribing a subsequent image acquisition; a real-time application in which images are acquired quickly with a short TR from which projected images at long TR are produced in near real-time; and post processing applications where enhanced images are produce to assist in diagnosis.

Original languageEnglish (US)
Title of host publicationProgress in Biomedical Optics and Imaging - Proceedings of SPIE
Volume6144 III
DOIs
StatePublished - 2006
EventMedical Imaging 2006: Image Processing - San Diego, CA, United States
Duration: Feb 13 2006Feb 16 2006

Other

OtherMedical Imaging 2006: Image Processing
CountryUnited States
CitySan Diego, CA
Period2/13/062/16/06

Fingerprint

Magnetic resonance
Imaging techniques
Magnetic resonance imaging
Image acquisition
Display devices
Processing

Keywords

  • Magnetic Resonance Imaging
  • Prior-information
  • T contrast

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Rajagopalan, S., & Robb, R. A. (2006). Prior-information-driven multiple contrast projection of T2 weighted magnetic resonance images. In Progress in Biomedical Optics and Imaging - Proceedings of SPIE (Vol. 6144 III). [61446K] https://doi.org/10.1117/12.653956

Prior-information-driven multiple contrast projection of T2 weighted magnetic resonance images. / Rajagopalan, Srinivasan; Robb, Richard A.

Progress in Biomedical Optics and Imaging - Proceedings of SPIE. Vol. 6144 III 2006. 61446K.

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

Rajagopalan, S & Robb, RA 2006, Prior-information-driven multiple contrast projection of T2 weighted magnetic resonance images. in Progress in Biomedical Optics and Imaging - Proceedings of SPIE. vol. 6144 III, 61446K, Medical Imaging 2006: Image Processing, San Diego, CA, United States, 2/13/06. https://doi.org/10.1117/12.653956
Rajagopalan S, Robb RA. Prior-information-driven multiple contrast projection of T2 weighted magnetic resonance images. In Progress in Biomedical Optics and Imaging - Proceedings of SPIE. Vol. 6144 III. 2006. 61446K https://doi.org/10.1117/12.653956
Rajagopalan, Srinivasan ; Robb, Richard A. / Prior-information-driven multiple contrast projection of T2 weighted magnetic resonance images. Progress in Biomedical Optics and Imaging - Proceedings of SPIE. Vol. 6144 III 2006.
@inproceedings{713ace7c3a024a2cb120557c22999783,
title = "Prior-information-driven multiple contrast projection of T2 weighted magnetic resonance images",
abstract = "Despite the tremendous improvements in MR imaging, the optimization of fast imaging techniques for display of T2 contrast has not yet been accomplished. Existing methods that make use of prior-information (feature-recognizing MRI, constrained reconstruction techniques, dynamic imaging etc) are sub-optimal. In this paper, we present a fast, robust method to enhance the T2 related contrast in an MRI image acquired at, but not restricted to, {"}just-enough-to-highlight-T2{"} repetition time so as to produce a computed mosaic of the same image at different repetition (TR) and echo (TE) times. This leads to substantial reduction in scan time and simultaneous provision of multiple snapshots of the same image at different TR and TE time settings. The enhanced mapping is performed using a feature-guided, non-linear equalization technique based on prior knowledge. The proposed methodology could be synergistically cascaded with other fast imaging techniques to further improve the acquisition rate. The clinical applications of the proposed contrast enhancement technique include: a pre-scan application in which projected images assist in prescribing a subsequent image acquisition; a real-time application in which images are acquired quickly with a short TR from which projected images at long TR are produced in near real-time; and post processing applications where enhanced images are produce to assist in diagnosis.",
keywords = "Magnetic Resonance Imaging, Prior-information, T contrast",
author = "Srinivasan Rajagopalan and Robb, {Richard A.}",
year = "2006",
doi = "10.1117/12.653956",
language = "English (US)",
isbn = "0819464236",
volume = "6144 III",
booktitle = "Progress in Biomedical Optics and Imaging - Proceedings of SPIE",

}

TY - GEN

T1 - Prior-information-driven multiple contrast projection of T2 weighted magnetic resonance images

AU - Rajagopalan, Srinivasan

AU - Robb, Richard A.

PY - 2006

Y1 - 2006

N2 - Despite the tremendous improvements in MR imaging, the optimization of fast imaging techniques for display of T2 contrast has not yet been accomplished. Existing methods that make use of prior-information (feature-recognizing MRI, constrained reconstruction techniques, dynamic imaging etc) are sub-optimal. In this paper, we present a fast, robust method to enhance the T2 related contrast in an MRI image acquired at, but not restricted to, "just-enough-to-highlight-T2" repetition time so as to produce a computed mosaic of the same image at different repetition (TR) and echo (TE) times. This leads to substantial reduction in scan time and simultaneous provision of multiple snapshots of the same image at different TR and TE time settings. The enhanced mapping is performed using a feature-guided, non-linear equalization technique based on prior knowledge. The proposed methodology could be synergistically cascaded with other fast imaging techniques to further improve the acquisition rate. The clinical applications of the proposed contrast enhancement technique include: a pre-scan application in which projected images assist in prescribing a subsequent image acquisition; a real-time application in which images are acquired quickly with a short TR from which projected images at long TR are produced in near real-time; and post processing applications where enhanced images are produce to assist in diagnosis.

AB - Despite the tremendous improvements in MR imaging, the optimization of fast imaging techniques for display of T2 contrast has not yet been accomplished. Existing methods that make use of prior-information (feature-recognizing MRI, constrained reconstruction techniques, dynamic imaging etc) are sub-optimal. In this paper, we present a fast, robust method to enhance the T2 related contrast in an MRI image acquired at, but not restricted to, "just-enough-to-highlight-T2" repetition time so as to produce a computed mosaic of the same image at different repetition (TR) and echo (TE) times. This leads to substantial reduction in scan time and simultaneous provision of multiple snapshots of the same image at different TR and TE time settings. The enhanced mapping is performed using a feature-guided, non-linear equalization technique based on prior knowledge. The proposed methodology could be synergistically cascaded with other fast imaging techniques to further improve the acquisition rate. The clinical applications of the proposed contrast enhancement technique include: a pre-scan application in which projected images assist in prescribing a subsequent image acquisition; a real-time application in which images are acquired quickly with a short TR from which projected images at long TR are produced in near real-time; and post processing applications where enhanced images are produce to assist in diagnosis.

KW - Magnetic Resonance Imaging

KW - Prior-information

KW - T contrast

UR - http://www.scopus.com/inward/record.url?scp=33745175211&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=33745175211&partnerID=8YFLogxK

U2 - 10.1117/12.653956

DO - 10.1117/12.653956

M3 - Conference contribution

AN - SCOPUS:33745175211

SN - 0819464236

SN - 9780819464231

VL - 6144 III

BT - Progress in Biomedical Optics and Imaging - Proceedings of SPIE

ER -