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Driven equilibrium (drive) MR imaging of the cranial nerves V-VIII: comparison with the T2-weighted 3D TSE sequence.
Eur J Radiol. 2004 Sep; 51(3):234-40.EJ

Abstract

PURPOSE

The aim of this study is to evaluate the efficacy of the driven equilibrium radio frequency reset pulse (DRIVE) on image quality and nerve detection when used in adjunction with T2-weighted 3D turbo spin-echo (TSE) sequence.

MATERIALS AND METHODS

Forty-five patients with cranial nerve symptoms referable to the cerebellopontine angle (CPA) were examined using a T2-weighted 3D TSE pulse sequence with and without DRIVE. MR imaging was performed on a 1.5-T MRI scanner. In addition to the axial resource images, reformatted oblique sagittal, oblique coronal and maximum intensity projection (MIP) images of the inner ear were evaluated. The nerve identification and image quality were graded for the cranial nerves V-VIII as well as inner ear structures. These structures were chosen because fluid-solid interfaces existed due to the CSF around (the cranial nerves V-VIII) or the endolymph within (the inner ear structures). Statistical analysis was performed using the Wilcoxon test. P < 0.05 was considered significant.

RESULTS

The addition of the DRIVE pulse shortens the scan time by 25%. T2-weighted 3D TSE sequence with DRIVE performed slightly better than the T2-weighted 3D TSE sequence without DRIVE in identifying the individual nerves. The image quality was also slightly better with DRIVE.

CONCLUSION

The addition of the DRIVE pulse to the T2-weighted 3D TSE sequence is preferable when imaging the cranial nerves surrounded by the CSF, or fluid-filled structures because of shorter scan time and better image quality due to reduced flow artifacts.

Authors+Show Affiliations

School of Radiology, University of Kocaeli, Derince, 41100, Turkey. eciftcis7@hotmail.comNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Comparative Study
Journal Article

Language

eng

PubMed ID

15294330

Citation

Ciftci, E, et al. "Driven Equilibrium (drive) MR Imaging of the Cranial Nerves V-VIII: Comparison With the T2-weighted 3D TSE Sequence." European Journal of Radiology, vol. 51, no. 3, 2004, pp. 234-40.
Ciftci E, Anik Y, Arslan A, et al. Driven equilibrium (drive) MR imaging of the cranial nerves V-VIII: comparison with the T2-weighted 3D TSE sequence. Eur J Radiol. 2004;51(3):234-40.
Ciftci, E., Anik, Y., Arslan, A., Akansel, G., Sarisoy, T., & Demirci, A. (2004). Driven equilibrium (drive) MR imaging of the cranial nerves V-VIII: comparison with the T2-weighted 3D TSE sequence. European Journal of Radiology, 51(3), 234-40.
Ciftci E, et al. Driven Equilibrium (drive) MR Imaging of the Cranial Nerves V-VIII: Comparison With the T2-weighted 3D TSE Sequence. Eur J Radiol. 2004;51(3):234-40. PubMed PMID: 15294330.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Driven equilibrium (drive) MR imaging of the cranial nerves V-VIII: comparison with the T2-weighted 3D TSE sequence. AU - Ciftci,E, AU - Anik,Yonca, AU - Arslan,Arzu, AU - Akansel,Gur, AU - Sarisoy,Tahsin, AU - Demirci,Ali, PY - 2003/07/25/received PY - 2003/10/17/revised PY - 2003/10/21/accepted PY - 2004/8/6/pubmed PY - 2004/12/16/medline PY - 2004/8/6/entrez SP - 234 EP - 40 JF - European journal of radiology JO - Eur J Radiol VL - 51 IS - 3 N2 - PURPOSE: The aim of this study is to evaluate the efficacy of the driven equilibrium radio frequency reset pulse (DRIVE) on image quality and nerve detection when used in adjunction with T2-weighted 3D turbo spin-echo (TSE) sequence. MATERIALS AND METHODS: Forty-five patients with cranial nerve symptoms referable to the cerebellopontine angle (CPA) were examined using a T2-weighted 3D TSE pulse sequence with and without DRIVE. MR imaging was performed on a 1.5-T MRI scanner. In addition to the axial resource images, reformatted oblique sagittal, oblique coronal and maximum intensity projection (MIP) images of the inner ear were evaluated. The nerve identification and image quality were graded for the cranial nerves V-VIII as well as inner ear structures. These structures were chosen because fluid-solid interfaces existed due to the CSF around (the cranial nerves V-VIII) or the endolymph within (the inner ear structures). Statistical analysis was performed using the Wilcoxon test. P < 0.05 was considered significant. RESULTS: The addition of the DRIVE pulse shortens the scan time by 25%. T2-weighted 3D TSE sequence with DRIVE performed slightly better than the T2-weighted 3D TSE sequence without DRIVE in identifying the individual nerves. The image quality was also slightly better with DRIVE. CONCLUSION: The addition of the DRIVE pulse to the T2-weighted 3D TSE sequence is preferable when imaging the cranial nerves surrounded by the CSF, or fluid-filled structures because of shorter scan time and better image quality due to reduced flow artifacts. SN - 0720-048X UR - https://www.unboundmedicine.com/medline/citation/15294330/Driven_equilibrium__drive__MR_imaging_of_the_cranial_nerves_V_VIII:_comparison_with_the_T2_weighted_3D_TSE_sequence_ DB - PRIME DP - Unbound Medicine ER -