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Elimination of motion, pulsatile flow and cross-talk artifacts using blade sequences in lumbar spine MR imaging
Stockholm University, Faculty of Science, Department of Physics. Karolinska Institutet.
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2013 (English)In: Magnetic Resonance Imaging, ISSN 0730-725X, E-ISSN 1873-5894, Vol. 31, no 6, 882-890 p.Article in journal (Refereed) Published
Abstract [en]

The purpose of this study is to evaluate the ability of T2 turbo spin echo (TSE) axial and sagittal BLADE sequences in reducing or even eliminating motion, pulsatile flow and cross-talk artifacts in lumbar spine MRI examinations. Forty four patients, who had routinely undergone a lumbar spine examination, participated in the study. The following pairs of sequences with and without BLADE were compared: a) 12 TSE Sagittal (SAG) in thirty two cases, and b) 12 TSE Axial (AX) also in thirty two cases. Both quantitative and qualitative analyses were performed based on measurements in different normal anatomical structures and examination of seven characteristics, respectively. The qualitative analysis was performed by experienced radiologists. Also, the presence of image motion, pulsatile flow and cross-talk artifacts was evaluated. Based on the results of the qualitative analysis for the different sequences and anatomical structures, the BLADE sequences were found to be significantly superior to the conventional ones in all the cases. The BLADE sequences eliminated the motion artifacts in all the cases. In our results, it was found that in the examined sequences (sagittal and axial) the differences between the BLADE and conventional sequences regarding the elimination of motion, pulsatile flow and cross-talk artifacts were statistically significant. In all the comparisons, the 12 TSE BLADE sequences were significantly superior to the corresponding conventional sequences regarding the classification of their image quality. In conclusion, this technique appears to be capable of potentially eliminating motion, pulsatile flow and cross-talk artifacts in lumbar spine MR images and producing high quality images in collaborative and non-collaborative patients.

Place, publisher, year, edition, pages
2013. Vol. 31, no 6, 882-890 p.
Keyword [en]
1.5 T MRI, Motion, Pulsatile flow and cross-talk artifacts, BLADE sequences, Lumbar spine examination
National Category
Radiology, Nuclear Medicine and Medical Imaging Physical Sciences
Identifiers
URN: urn:nbn:se:su:diva-92442DOI: 10.1016/j.mri.2013.03.006ISI: 000320818600010OAI: oai:DiVA.org:su-92442DiVA: diva2:639024
Note

AuthorCount:13;

Available from: 2013-08-05 Created: 2013-08-05 Last updated: 2017-12-06Bibliographically approved

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