Universität zu Köln

Bratke, Grischa ORCID: 0000-0002-5696-9828, Rau, Robert, Kabbasch, Christoph ORCID: 0000-0003-3712-2258, Zaeske, Charlotte ORCID: 0000-0003-3746-8523, Maintz, David, Haneder, Stefan, Hokamp, Nils Grosse, Persigehl, Thorsten, Siedek, Florian and Weiss, Kilian ORCID: 0000-0003-4295-4585 (2021). Speeding up the clinical routine: Compressed sensing for 2D imaging of lumbar spine disc herniation. Eur. J. Radiol., 140. CLARE: ELSEVIER IRELAND LTD. ISSN 1872-7727

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Abstract

Purpose: Increasing economic pressure and patient demands for comfort require an ever-increasing acceleration of scan times without compromising diagnostic certainty. This study tested the new acceleration technique Compressed SENSE (CS-SENSE) as well as different reconstruction methods for the lumbar spine. Methods: In this prospective study, 10 volunteers and 14 patients with lumbar disc herniation were scanned using a sagittal 2D T2 turbo spin echo (TSE) sequence applying different acceleration factors of SENSE and CS-SENSE. Gradient echo (GRE), autocalibration (CS-Auto) and TSE prescans were tested for reconstruction. Images were analysed by two readers regarding anatomical delineation, diagnostic certainty (for patients only) and image quality as well as objectively calculating the root mean square error (RMSE), structural similarity index (SSIM), SNR and CNR. The Friedman test and Chi-squared were used for ordinal, ANOVA for repeated measurements and Tukey Kramer test for continuous data. Cohen's kappawas calculated for interreader reliability. Results: CS-SENSE outperformed SENSE and CS-Auto regarding RMSE (e.g. CS-SENSE 1.5: 43.03 +/- 11.64 versus SENSE 1.5: 80.41 +/- 17.66; p = 0.0038) and SSIM as well as in the subjective rating for CS-SENSE 3 TSE. In the patient setting image quality was unchanged in all subjective criteria up to CS-SENSE 3 TSE (all p > 0.05) compared to standard T2 with 43 % less scan time while the GRE prescan only allowed a reduction of 32 %. Conclusion: Combining a TSE prescan with CS-SENSE enables significant scan time reductions with unchanged ratings for lumbar spine disc herniation making this superior to the currently used SENSE acceleration or GRE reconstructions.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Bratke, Grischa UNSPECIFIED orcid.org/0000-0002-5696-9828 UNSPECIFIED Rau, Robert UNSPECIFIED UNSPECIFIED UNSPECIFIED Kabbasch, Christoph UNSPECIFIED orcid.org/0000-0003-3712-2258 UNSPECIFIED Zaeske, Charlotte UNSPECIFIED orcid.org/0000-0003-3746-8523 UNSPECIFIED Maintz, David UNSPECIFIED UNSPECIFIED UNSPECIFIED Haneder, Stefan UNSPECIFIED UNSPECIFIED UNSPECIFIED Hokamp, Nils Grosse UNSPECIFIED UNSPECIFIED UNSPECIFIED Persigehl, Thorsten UNSPECIFIED UNSPECIFIED UNSPECIFIED Siedek, Florian UNSPECIFIED UNSPECIFIED UNSPECIFIED Weiss, Kilian UNSPECIFIED orcid.org/0000-0003-4295-4585 UNSPECIFIED
URN:	urn:nbn:de:hbz:38-578363
DOI:	10.1016/j.ejrad.2021.109738
Journal or Publication Title:	Eur. J. Radiol.
Volume:	140
Date:	2021
Publisher:	ELSEVIER IRELAND LTD
Place of Publication:	CLARE
ISSN:	1872-7727
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language ECHO SEQUENCE; MRI; ACQUISITION Multiple languages Radiology, Nuclear Medicine & Medical Imaging Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/57836