Bubble stream reveals functionality of the right-to-left shunt: detection of a potential source for air embolism.
The existence of a right-to-left shunt may increase the likelihood of micro-embolism by allowing a flux of bubbles under hyperbaric conditions. The aim of the study was to measure the relationship between these shunts and bubbles in 10 consecutive subjects using trans-thoracic and trans-esophageal e...
| Publicado en: | Ultrasound in Medicine & Biology Vol. 40; no. 2; pp. 330 - 341 |
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| Autores principales: | , , , , , , |
| Formato: | research Journal Article |
| Publicado: |
Elsevier B.V.
Feb2014
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=104001446&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 104001446 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 03015629 JJ6 jtl: Ultrasound in Medicine & Biology issn: 03015629 maglogo: N pubinfo: dt: Feb2014 vid: 40 iid: 2 pid: 467 pub: Elsevier B.V. place: New York, New York artinfo: ui: 104001446 NLM24262055 2012442912 10.1016/j.ultrasmedbio.2013.09.019 NLM24262055 104001446 ppf: 330 ppct: 11 formats: tig: atl: Bubble stream reveals functionality of the right-to-left shunt: detection of a potential source for air embolism. aug: au: Parlak, Ismail Burak Egi, Salih Murat Ademoglu, Ahmet Germonpré, Peter Esen, Ozlem Batukan Marroni, Alessandro Balestra, Costantino affil: Institute of Biomedical Engineering, Bogaziçi University, Istanbul, Turkey; Department of Computer Engineering, Galatasaray University, Istanbul, Turkey. Electronic address: bparlak@gsu.edu.tr. sug: subj: Echocardiography Methods Embolism, Air Etiology Embolism, Air Ultrasonography Heart Septal Defects, Atrial Complications Heart Septal Defects, Atrial Ultrasonography Image Interpretation, Computer Assisted Methods Equipment and Supplies Adult Contrast Media Female Human Male Reproducibility of Results Sensitivity and Specificity Young Adult Adult: 19-44 years Female Male ab: The existence of a right-to-left shunt may increase the likelihood of micro-embolism by allowing a flux of bubbles under hyperbaric conditions. The aim of the study was to measure the relationship between these shunts and bubbles in 10 consecutive subjects using trans-thoracic and trans-esophageal echocardiography. In video frames, all cardiac chambers were segmented and bubbles were analyzed by our proposed method and two other methods. The relationship with bubbles and shunts was divided into three classes: no bubbles, 1-20 bubbles, >20 bubbles and measured over 2160 frames. Our sensitivity was 100% and our specificity was between 90.1% and 96.4%. There were 4.32-23.78 bubbles/frame in the left atrium according to our method. After the automatic analysis, shunts were graded double-blinded by two cardiologists. Consequently, we noted that aperture size does not necessarily reflect how active the right-to-left shunt is. Instead, our proposed decay curves constitute a better tool for determining functionality. pubtype: Academic Journal doctype: research Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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