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LIBRIS Formathandbok  (Information om MARC21)
FältnamnIndikatorerMetadata
00004358naa a2200433 4500
001oai:DiVA.org:liu-140501
003SwePub
008170911s2017 | |||||||||||000 ||eng|
0247 a https://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-1405012 URI
0247 a https://doi.org/10.1093/ehjci/jew1662 DOI
040 a (SwePub)liu
041 a engb eng
042 9 SwePub
072 7a ref2 swepub-contenttype
072 7a art2 swepub-publicationtype
1001 a Almeida, Nunou Katholieke University of Leuven, Belgium; GE Vingmed Ultrasound AS, Norway4 aut
2451 0a Left atrial volumetric assessment using a novel automated framework for 3D echocardiography: a multi-centre analysis
264 c 2016-08-22
264 1b OXFORD UNIV PRESS,c 2017
338 a print2 rdacarrier
500 a Funding Agencies|European Union under a Marie Curie Initial Training Network USART-project [PITN-GA-2012-317132]; DOPPLER-CIP project (EU FP7 framework programme) [223615]
520 a Aims This study aims at validating a software tool for automated segmentation and quantification of the left atrium (LA) from 3D echocardiography. Methods and results The LA segmentation tool uses a dual-chamber model of the left side of the heart to automatically detect and track the atrio-ventricular plane and the LA endocardium in transthoracic 3D echocardiography. The tool was tested in a dataset of 121 ultrasound images from patients with several cardiovascular pathologies (in a multi-centre setting), and the resulting volumes were compared with those assessed manually by experts in a blinded analysis using conventional contouring. Bland-Altman analysis showed good agreement between the automated method and the manual references, with differences (mean +/- 1.96 SD) of 0.5 +/- 5.7 mL for LA minimum volume and -1.6 +/- 9.7 mL for LA maximum volume (comparable to the inter-observer variability of manual tracings). The automated tool required no user interaction in 93% of the recordings, while 4% required a single click and only 2% required contour adjustments, reducing considerably the amount of time and effort required for LA volumetric analysis. Conclusion The automated tool was validated in a multi-centre setting, providing quantification of the LA volume over the cardiac cycle with minimal user interaction. The results of the automated analysis were in agreement with those estimated manually by experts. This study shows that such approach has clinical utility for the assessment of the LA morphology and function, automating and facilitating the time-consuming task of analysing 3D echocardiographic recordings.
650 7a TEKNIK OCH TEKNOLOGIERx Medicinteknikx Medicinsk laboratorie- och mätteknik0 (SwePub)206012 hsv//swe
650 7a ENGINEERING AND TECHNOLOGYx Medical Engineeringx Medical Laboratory and Measurements Technologies0 (SwePub)206012 hsv//eng
653 a left atrium assessment; automated analysis; RT3DE; 3D echocardiography; volumetric function assessment
7001 a Papachristidis, Alexandrosu Kings Coll Hospital London, England4 aut
7001 a Pearson, Peteru Kings Coll Hospital London, England4 aut
7001 a Imre Sarvari, Sebastianu University of Oslo, Norway4 aut
7001 a Engvall, Janu Linköpings universitet,Avdelningen för kardiovaskulär medicin,Medicinska fakulteten,Centrum för medicinsk bildvetenskap och visualisering, CMIV,Region Östergötland, Fysiologiska kliniken US4 aut0 (Swepub:liu)janen74
7001 a Edvardsen, Thoru University of Oslo, Norway4 aut
7001 a Monaghan, Marku Kings Coll Hospital London, England4 aut
7001 a Gerard, Olivieru GE Vingmed Ultrasound AS, Norway4 aut
7001 a Samset, Eigilu GE Vingmed Ultrasound AS, Norway; University of Oslo, Norway4 aut
7001 a Dhooge, Janu Katholieke University of Leuven, Belgium4 aut
7102 a Katholieke University of Leuven, Belgium; GE Vingmed Ultrasound AS, Norwayb Kings Coll Hospital London, England4 org
7730 t European Heart Journal Cardiovascular Imagingd : OXFORD UNIV PRESSg 18:9, s. 1008-1015q 18:9<1008-1015x 2047-2404x 2047-2412
8564 u https://academic.oup.com/ehjcimaging/article-pdf/18/9/1008/21528758/jew166.pdf
8564 8u https://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-140501
8564 8u https://doi.org/10.1093/ehjci/jew166

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