European Radiology

, Volume 16, Issue 3, pp 634–641

MRI of the pelvis at 3 T: very high spatial resolution with sensitivity encoding and flip-angle sweep technique in clinically acceptable scan time

  • Nuschin Morakkabati-Spitz
  • Jürgen Gieseke
  • Christiane Kuhl
  • Götz Lutterbey
  • Marcus von Falkenhausen
  • Frank Träber
  • Tjoung-Won Park-Simon
  • Oliver Zivanovic
  • Hans H. Schild
Urogenital

DOI: 10.1007/s00330-005-0016-1

Cite this article as:
Morakkabati-Spitz, N., Gieseke, J., Kuhl, C. et al. Eur Radiol (2006) 16: 634. doi:10.1007/s00330-005-0016-1

Abstract

Objective

The higher signal at 3.0-T allows spatial resolution to be increased without loss in image quality. We evaluated a T2-weighted turbo spin-echo sequence with high spatial resolution (3T-HR) to determine whether this provides clinically useful pelvic MRI.

Materials and methods

We designed a sequence with high spatial resolution (3T-HR) (0.45×0.46×4 mm) that was combined with parallel imaging and the variable refocusing angle technique (8.06 min). We examined 23 patients with gynecological disorders using 3T-HR and a standard sequence (3T-SP; 4.03 min; equivalent to 1.5 T). Two radiologists analyzed tissue contrast, signal to noise, detail delineation and artifact level.

Results

Tissue contrasts and signal to noise were rated equal. Motion artifacts occurred more often with 3T-SP despite the longer scanning time of 3T-HR. The higher spatial resolution provided additional information in four patients. In two patients small myomas were detected, in one patient a lymph node metastasis was apparent, and in one patient 3T-HR excluded tumor invasion.

Conclusions

High spatial resolution pelvic studies with high image quality can be obtained at 3 T in acceptable scan time. The higher spatial resolution that is feasible at 3 T also provides more clinically relevant information.

Keywords

High-field magnetic resonance imagingSpatial resolutionParallel imagingVariable refocusing angleSpecific absorption rate reduction

Copyright information

© Springer-Verlag 2005

Authors and Affiliations

  • Nuschin Morakkabati-Spitz
    • 1
  • Jürgen Gieseke
    • 1
    • 2
  • Christiane Kuhl
    • 1
  • Götz Lutterbey
    • 1
  • Marcus von Falkenhausen
    • 1
  • Frank Träber
    • 1
  • Tjoung-Won Park-Simon
    • 3
  • Oliver Zivanovic
    • 3
  • Hans H. Schild
    • 1
  1. 1.Department of RadiologyUniversity of BonnBonnGermany
  2. 2.Philips Medical SystemsBestThe Netherlands
  3. 3.Department of Gynecology and ObstetricsUniversity of BonnBonnGermany