A feasible high spatiotemporal resolution breast DCE-MRI protocol for clinical settings

Luminita (Alina) Tudorica, Karen Oh, Nicole Roy, Mark Kettler, Yiyi Chen, Stephanie L. Hemmingson, Aneela Afzal, John W. Grinstead, Gerhard Laub, Xin Li, Wei Huang

Research output: Contribution to journalArticle

42 Citations (Scopus)

Abstract

Three dimensional bilateral imaging is the standard for most clinical breast dynamic contrast-enhanced (DCE) MRI protocols. Because of high spatial resolution (sRes) requirement, the typical 1-2 min temporal resolution (tRes) afforded by a conventional full-k-space-sampling gradient echo (GRE) sequence precludes meaningful and accurate pharmacokinetic analysis of DCE time-course data. The commercially available, GRE-based, k-space undersampling and data sharing TWIST (time-resolved angiography with stochastic trajectories) sequence was used in this study to perform DCE-MRI exams on thirty one patients (with 36 suspicious breast lesions) before their biopsies. The TWIST DCE-MRI was immediately followed by a single-frame conventional GRE acquisition. Blinded from each other, three radiologist readers assessed agreements in multiple lesion morphology categories between the last set of TWIST DCE images and the conventional GRE images. Fleiss' κ test was used to evaluate inter-reader agreement. The TWIST DCE time-course data were subjected to quantitative pharmacokinetic analyses. With a four-channel phased-array breast coil, the TWIST sequence produced DCE images with 20 s or less tRes and ~ 1.0×1.0×1.4 mm3 sRes. There were no significant differences in signal-to-noise (P=.45) and contrast-to-noise (P=.51) ratios between the TWIST and conventional GRE images. The agreements in morphology evaluations between the two image sets were excellent with the intra-reader agreement ranging from 79% for mass margin to 100% for mammographic density and the inter-reader κ value ranging from 0.54 (P

Original languageEnglish (US)
Pages (from-to)1257-1267
Number of pages11
JournalMagnetic Resonance Imaging
Volume30
Issue number9
DOIs
StatePublished - Nov 2012

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Clinical Protocols
Angiography
Magnetic resonance imaging
Breast
Trajectories
Pharmacokinetics
Noise
Biopsy
Three-Dimensional Imaging
Information Dissemination
Sampling
Imaging techniques

Keywords

  • Breast cancer
  • Dynamic contrast-enhanced (DCE) MRI
  • Spatial resolution
  • Temporal resolution
  • TWIST

ASJC Scopus subject areas

  • Biophysics
  • Radiology Nuclear Medicine and imaging
  • Biomedical Engineering

Cite this

A feasible high spatiotemporal resolution breast DCE-MRI protocol for clinical settings. / Tudorica, Luminita (Alina); Oh, Karen; Roy, Nicole; Kettler, Mark; Chen, Yiyi; Hemmingson, Stephanie L.; Afzal, Aneela; Grinstead, John W.; Laub, Gerhard; Li, Xin; Huang, Wei.

In: Magnetic Resonance Imaging, Vol. 30, No. 9, 11.2012, p. 1257-1267.

Research output: Contribution to journalArticle

Tudorica, Luminita (Alina) ; Oh, Karen ; Roy, Nicole ; Kettler, Mark ; Chen, Yiyi ; Hemmingson, Stephanie L. ; Afzal, Aneela ; Grinstead, John W. ; Laub, Gerhard ; Li, Xin ; Huang, Wei. / A feasible high spatiotemporal resolution breast DCE-MRI protocol for clinical settings. In: Magnetic Resonance Imaging. 2012 ; Vol. 30, No. 9. pp. 1257-1267.
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