HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Figures Only Full Text Full Text (PDF) All Versions of this Article: 2341031596v1 234/1/256    most recent Submit a response Alert me when this article is cited Alert me when eLetters are posted Alert me if a correction is posted Citation Map Services Email this article to a friend Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via HighWire Citing Articles via Google Scholar Google Scholar Articles by Saupe, N. Articles by Weishaupt, D. Search for Related Content PubMed PubMed Citation Articles by Saupe, N. Articles by Weishaupt, D.

MR Imaging of the Wrist: Comparison between 1.5- and 3-T MR Imaging—Preliminary Experience¹

¹ From the Institute of Diagnostic Radiology, University Hospital Zurich, Raemistrasse 100, CH-8091 Zurich, Switzerland (N.S., B.M., D.W.); and Institute of Biomedical Engineering, Zurich, Switzerland (K.P.P., R.L., P.B.). Received October 1, 2003; revision requested December 18; revision received March 15, 2004; accepted April 22. Address correspondence to D.W. (e-mail: dominik.weishaupt@usz.ch).

Institutional review board approval and informed consent were obtained from 25 healthy volunteers and 15 consecutive patients with chronic wrist pain or suspected carpal mass, and 1.5- and 3-T magnetic resonance (MR) imaging of the wrist was prospectively performed with comparable sequence parameters and surface coils of the same geometric design. Imaging protocols at both field strengths included a T1-weighted spin-echo sequence, two intermediate-weighted fast SE sequences with different echo times and with and without fat saturation, and a three-dimensional fast field-echo sequence. The contrast-to-noise ratio (CNR) between muscle and bone and between bone and cartilage was calculated for both field strengths. The visibility of various anatomic structures, including the triangular fibrocartilage complex, carpal ligaments, nerves, and cartilage, was analyzed with a four-point grading scale. CNRs were significantly higher on 3-T MR images than on 1.5-T MR images (P < .001; analysis of variance) for all sequences. Visibility of the triangular fibrocartilage complex and intercarpal ligaments and cartilage was significantly better on 3-T MR images than on 1.5-T MR images (paired sign test).

© RSNA, 2004

This article has been cited by other articles:

				J. Zhao, R. Krug, D. Xu, Y. Lu, and T. M. Link MRI of the Spine: Image Quality and Normal-Neoplastic Bone Marrow Contrast at 3 T Versus 1.5 T Am. J. Roentgenol., April 1, 2009; 192(4): 873 - 880. [Abstract] [Full Text] [PDF]

				A.-M. Machata, H. Willschke, B. Kabon, D. Prayer, and P. Marhofer Effect of brain magnetic resonance imaging on body core temperature in sedated infants and children Br. J. Anaesth., March 1, 2009; 102(3): 385 - 389. [Abstract] [Full Text] [PDF]

				T. Magee Comparison of 3-T MRI and Arthroscopy of Intrinsic Wrist Ligament and TFCC Tears Am. J. Roentgenol., January 1, 2009; 192(1): 80 - 85. [Abstract] [Full Text] [PDF]

				C. K. Kuhl, F. Traber, J. Gieseke, W. Drahanowsky, N. Morakkabati-Spitz, W. Willinek, M. von Falkenhausen, C. Manka, and H. H. Schild Whole-Body High-Field-Strength (3.0-T) MR Imaging in Clinical Practice * Part II. Technical Considerations and Clinical Applications Radiology, April 1, 2008; 247(1): 16 - 35. [Abstract] [Full Text] [PDF]

				N. Saupe, C. W. A. Pfirrmann, M. R. Schmid, T. Schertler, M. Manestar, and D. Weishaupt MR Imaging of Cartilage in Cadaveric Wrists: Comparison between Imaging at 1.5 and 3.0 T and Gross Pathologic Inspection Radiology, April 1, 2007; 243(1): 180 - 187. [Abstract] [Full Text] [PDF]

				C. Ruegger, M. R. Schmid, C. W. A. Pfirrmann, L. Nagy, L. A. Gilula, and M. Zanetti Peripheral Tear of the Triangular Fibrocartilage: Depiction with MR Arthrography of the Distal Radioulnar Joint Am. J. Roentgenol., January 1, 2007; 188(1): 187 - 192. [Abstract] [Full Text] [PDF]