Universität zu Köln

Iuga, Andra-Iza, Abdullayev, Nuran, Weiss, Kilian, Haneder, Stefan, Bruggemann-Bratke, Lisa, Maintz, David, Rau, Robert and Bratke, Grischa (2020). Accelerated MRI of the knee. Quality and efficiency of compressed sensing. Eur. J. Radiol., 132. CLARE: ELSEVIER IRELAND LTD. ISSN 1872-7727

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Abstract

Purpose: To evaluate potential clinical acceleration factors of Compressed SENSE (CS)(1) in direct comparison with SENSE for fat saturated (fs)(2), proton density-weighted (PD)(3) 2D and 3D sequences of the knee. Method: Twenty healthy volunteers were scanned with a 3 T scanner, all receiving a standard, fs 2D PD, three CS (CS 2, CS 3, CS 5) as well as time-equivalent SENSE accelerations (5 2, 5 3, 5 5). The fs 3D PD sequence was acquired with four CS (CS 6, CS 8, CS 10, CS 15) and equivalent SENSE (5 5.72, 5 7.69, 5 9.57, 5 14) factors. Three independent readers rated the images. Signal-to-noise, contrast-to-noise, root-mean-square error and structural similarity index were analyzed for objective evaluation. Results: Scan time decreased with increasing CS factor (2D CS 2: 145 s, 2D CS 3: 95 s, 2D CS 5: 57 s, 3D CS 6: 293 s, 3D CS 8: 220 s, 3D CS 10: 176 s, 3D CS 15: 119 s). The 2D standard sequence was rated best for diagnostic certainty and overall image impression with an average of 4.97 +/- 0.10 and 4.80 +/- 0.24 (all p < 0.05), except for 2D CS 2 and 2D 5 2. For the 3D sequences, the standard sequence performed better for both parameters for CS 15, 5 9.57 and 5 4, as well as 5 7.69 for overall image impression while CS 8 was non-inferior for all tested criteria and CS 10 only inferior for delineation of the anterior cruciate ligament, both outperforming the time-equivalent SENSE accelerations. Conclusion: Compressed SENSE can significantly decrease (34.39 % for 2D CS 2 and 54.17 % for 3D CS 10) scan time in knee imaging with unchanged diagnostic certainty and overall image impression compared to the clinical reference.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Iuga, Andra-Iza UNSPECIFIED UNSPECIFIED UNSPECIFIED Abdullayev, Nuran UNSPECIFIED UNSPECIFIED UNSPECIFIED Weiss, Kilian UNSPECIFIED UNSPECIFIED UNSPECIFIED Haneder, Stefan UNSPECIFIED UNSPECIFIED UNSPECIFIED Bruggemann-Bratke, Lisa UNSPECIFIED UNSPECIFIED UNSPECIFIED Maintz, David UNSPECIFIED UNSPECIFIED UNSPECIFIED Rau, Robert UNSPECIFIED UNSPECIFIED UNSPECIFIED Bratke, Grischa UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-312868
DOI:	10.1016/j.ejrad.2020.109273
Journal or Publication Title:	Eur. J. Radiol.
Volume:	132
Date:	2020
Publisher:	ELSEVIER IRELAND LTD
Place of Publication:	CLARE
ISSN:	1872-7727
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language SPIN-ECHO SEQUENCE Multiple languages Radiology, Nuclear Medicine & Medical Imaging Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/31286