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- 저자 : Leo Heunks (검색결과 1 건)
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Speckle tracking ultrasonography as a new tool to assess diaphragmatic function: a feasibility study
Sebastian Johannes Fritsch,Nima Hatam,Andreas Goetzenich,Gernot Marx,Rüdiger Autschbach,Leo Heunks,Johannes Bickenbach,Christian Simon Bruells 대한초음파의학회 2022 ULTRASONOGRAPHY Vol.41 No.2
A reliable method of measuring diaphragmatic function at the bedside is still lacking. Widely used two-dimensional (2D) ultrasonographic measurements, such as diaphragm excursion, diaphragm thickness, and fractional thickening (FT) have failed to show clear correlations with diaphragmatic function. A reason for this is that 2D ultrasonographic measurements, like FT, are merely able to measure the deformation of muscular diaphragmatic tissue in the transverse direction, while longitudinal measurements in the direction of contracting muscle fibres are not possible. Speckle tracking ultrasonography, which is widely used in cardiac imaging, overcomes this disadvantage and allows observations of movement in the direction of the contracting muscle fibres, approximating muscle deformation and the deformation velocity. Several studies have evaluated speckle tracking as a promising method to assess diaphragm contractility in healthy subjects. This technical note demonstrates the feasibility of speckle tracking ultrasonography of the diaphragm in a group of 20 patients after an aortocoronary bypass graft procedure. The results presented herein suggest that speckle tracking ultrasonography is able to depict alterations in diaphragmatic function after surgery better than 2D ultrasonographic measurements.
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