Processing of radial fast spin-echo data for obtaining T2 estimates from a single k-space data set

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27 Citations (Scopus)

Abstract

Radially acquired fast spin-echo data can be processed to obtain T 2-weighted images and a T2 map from a single k-space data set. The general approach is to use data at a specific TE (or narrow TE range) In the center of k-space and data at other TE values in the outer part of k-space. With this method high-resolution T2-weighted images and T2 maps are obtained in a time efficient manner. The mixing of TE data, however, introduces errors in the T2-weighted images and T2 maps that affect the accuracy of the T2 estimates. In this work, various k-space data processing methods for reconstructing T2-weighted images and T2 maps from a single radial fast spin-echo k-space data set are analyzed in terms of the accuracy of T2 estimates. The analysis is focused on the effect of image artifacts, object dependency, and noise on the T2 estimates. Results are presented in computer-generated phantoms and in vivo.

Original languageEnglish (US)
Pages (from-to)549-559
Number of pages11
JournalMagnetic Resonance in Medicine
Volume54
Issue number3
DOIs
StatePublished - Sep 2005

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Keywords

  • Fast spin-echo
  • Projection reconstruction
  • Radial MRI
  • T

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging
  • Radiological and Ultrasound Technology

Cite this

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title = "Processing of radial fast spin-echo data for obtaining T2 estimates from a single k-space data set",
abstract = "Radially acquired fast spin-echo data can be processed to obtain T 2-weighted images and a T2 map from a single k-space data set. The general approach is to use data at a specific TE (or narrow TE range) In the center of k-space and data at other TE values in the outer part of k-space. With this method high-resolution T2-weighted images and T2 maps are obtained in a time efficient manner. The mixing of TE data, however, introduces errors in the T2-weighted images and T2 maps that affect the accuracy of the T2 estimates. In this work, various k-space data processing methods for reconstructing T2-weighted images and T2 maps from a single radial fast spin-echo k-space data set are analyzed in terms of the accuracy of T2 estimates. The analysis is focused on the effect of image artifacts, object dependency, and noise on the T2 estimates. Results are presented in computer-generated phantoms and in vivo.",
keywords = "Fast spin-echo, Projection reconstruction, Radial MRI, T",
author = "Altbach, {Maria I.} and Ali Bilgin and Zhiqiang Li and Clarkson, {Eric W.} and Trouard, {Theodore P.} and Gmitro, {Arthur F.}",
year = "2005",
month = "9",
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volume = "54",
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journal = "Magnetic Resonance in Medicine",
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T1 - Processing of radial fast spin-echo data for obtaining T2 estimates from a single k-space data set

AU - Altbach, Maria I.

AU - Bilgin, Ali

AU - Li, Zhiqiang

AU - Clarkson, Eric W.

AU - Trouard, Theodore P.

AU - Gmitro, Arthur F.

PY - 2005/9

Y1 - 2005/9

N2 - Radially acquired fast spin-echo data can be processed to obtain T 2-weighted images and a T2 map from a single k-space data set. The general approach is to use data at a specific TE (or narrow TE range) In the center of k-space and data at other TE values in the outer part of k-space. With this method high-resolution T2-weighted images and T2 maps are obtained in a time efficient manner. The mixing of TE data, however, introduces errors in the T2-weighted images and T2 maps that affect the accuracy of the T2 estimates. In this work, various k-space data processing methods for reconstructing T2-weighted images and T2 maps from a single radial fast spin-echo k-space data set are analyzed in terms of the accuracy of T2 estimates. The analysis is focused on the effect of image artifacts, object dependency, and noise on the T2 estimates. Results are presented in computer-generated phantoms and in vivo.

AB - Radially acquired fast spin-echo data can be processed to obtain T 2-weighted images and a T2 map from a single k-space data set. The general approach is to use data at a specific TE (or narrow TE range) In the center of k-space and data at other TE values in the outer part of k-space. With this method high-resolution T2-weighted images and T2 maps are obtained in a time efficient manner. The mixing of TE data, however, introduces errors in the T2-weighted images and T2 maps that affect the accuracy of the T2 estimates. In this work, various k-space data processing methods for reconstructing T2-weighted images and T2 maps from a single radial fast spin-echo k-space data set are analyzed in terms of the accuracy of T2 estimates. The analysis is focused on the effect of image artifacts, object dependency, and noise on the T2 estimates. Results are presented in computer-generated phantoms and in vivo.

KW - Fast spin-echo

KW - Projection reconstruction

KW - Radial MRI

KW - T

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