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Semi-automatic motion compensation of contrast-enhanced ultrasound images from abdominal organs for perfusion analysis
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SYSNO ASEP 0450646 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Semi-automatic motion compensation of contrast-enhanced ultrasound images from abdominal organs for perfusion analysis Author(s) Schafer, S. (DE)
Nylund, K. (NO)
Saevik, F. (NO)
Engjom, T. (NO)
Mézl, M. (CZ)
Jiřík, Radovan (UPT-D) RID, ORCID, SAI
Dimcevski, G. (NO)
Gilja, O.H. (NO)
Tönnies, K. (DE)Number of authors 9 Source Title Computers in Biology Medicine. - : Elsevier - ISSN 0010-4825
Roč. 63, AUG 1 (2015), s. 229-237Number of pages 9 s. Publication form Print - P Language eng - English Country GB - United Kingdom Keywords ultrasonography ; motion analysis ; motion compensation ; registration ; CEUS ; contrast-enhanced ultrasound ; perfusion ; perfusion modeling Subject RIV FS - Medical Facilities ; Equipment R&D Projects GAP102/12/2380 GA ČR - Czech Science Foundation (CSF) Institutional support UPT-D - RVO:68081731 UT WOS 000358269300026 EID SCOPUS 84933512433 DOI 10.1016/j.compbiomed.2014.09.014 Annotation This paper presents a system for correcting motion influences in time-dependent 2D contrast-enhanced ultrasound (CEUS) images to assess tissue perfusion characteristics. The system consists of a semiautomatic frame selection method to find images with out-of-plane motion as well as a method for automatic motion compensation. Translational and non-rigid motion compensation is applied by introducing a temporal continuity assumption. A study consisting of 40 clinical datasets was conducted to compare the perfusion with simulated perfusion using pharmacokinetic modeling. Overall, the proposed approach decreased the mean average difference between the measured perfusion and the pharmacokinetic model estimation. It was non-inferior for three out of four patient cohorts to a manual approach and reduced the analysis time by 41% compared to manual processing. Workplace Institute of Scientific Instruments Contact Martina Šillerová, sillerova@ISIBrno.Cz, Tel.: 541 514 178 Year of Publishing 2016
Number of the records: 1