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Neuroradiology

, Volume 50, Issue 1, pp 9–16 | Cite as

High-field, high-resolution, susceptibility-weighted magnetic resonance imaging: improved image quality by addition of contrast agent and higher field strength in patients with brain tumors

  • K. Pinker
  • I. M. Noebauer-Huhmann
  • I. Stavrou
  • R. Hoeftberger
  • P. Szomolanyi
  • M. Weber
  • A. Stadlbauer
  • G. Grabner
  • E. Knosp
  • S. Trattnig
Diagnostic Neuroradiology

Abstract

Introduction

To demonstrate intratumoral susceptibility effects in malignant brain tumors and to assess visualization of susceptibility effects before and after administration of the paramagnetic contrast agent MultiHance (gadobenate dimeglumine; Bracco Imaging), an agent known to have high relaxivity, with respect to susceptibility effects, image quality, and reduction of scan time.

Methods

Included in the study were 19 patients with malignant brain tumors who underwent high-resolution, susceptibility-weighted (SW) MR imaging at 3 T before and after administration of contrast agent. In all patients, Multihance was administered intravenously as a bolus (0.1 mmol/kg body weight). MR images were individually evaluated by two radiologists with previous experience in the evaluation of pre- and postcontrast 3-T SW MR images with respect to susceptibility effects, image quality, and reduction of scan time.

Results

In the 19 patients 21 tumors were diagnosed, of which 18 demonstrated intralesional susceptibility effects both in pre- and postcontrast SW images, and 19 demonstrated contrast enhancement in both SW images and T1-weighted spin-echo MR images. Conspicuity of susceptibility effects and image quality were improved in postcontrast images compared with precontrast images and the scan time was also reduced due to decreased TE values from 9 min (precontrast) to 7 min (postcontrast).

Conclusion

The intravenous administration of MultiHance, an agent with high relaxivity, allowed a reduction of scan time from 9 min to 7 min while preserving excellent susceptibility effects and image quality in SW images obtained at 3 T. Contrast enhancement and intralesional susceptibility effects can be assessed in one sequence.

Keywords

High field 3 Tesla Susceptibility-weighted magnetic resonance imaging Contrast agent Brain tumors 

Notes

Conflict of interest statement

We declare that we have no conflict of interest.

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Copyright information

© Springer-Verlag 2007

Authors and Affiliations

  • K. Pinker
    • 1
  • I. M. Noebauer-Huhmann
    • 1
  • I. Stavrou
    • 2
  • R. Hoeftberger
    • 3
  • P. Szomolanyi
    • 1
  • M. Weber
    • 1
  • A. Stadlbauer
    • 4
  • G. Grabner
    • 1
  • E. Knosp
    • 2
  • S. Trattnig
    • 1
  1. 1.MR Centre of Excellence, Department of RadiologyMedical University ViennaViennaAustria
  2. 2.Department of NeurosurgeryMedical University ViennaViennaAustria
  3. 3.Institute of NeurologyMedical University ViennaViennaAustria
  4. 4.Department of NeurosurgeryUniversity Erlangen-NurembergErlangenGermany

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