Mitral valve morphology assessed by three-dimensional transthoracic echocardiography in healthy dogs and dogs with myxomatous mitral valve disease

Sammanfattning

Objective: To assess differences in morphology of the mitral valve (MV) between healthy dogs and dogs affected by myxomatous mitral valve disease (MMVD) using real-time transthoracic three-dimensional echocardiography (RT3DE).Animals: Thirty-four were normal dogs and 79 dogs were affected by MMVD.Methods: Real-time transthoracic three-dimensional echocardiography mitral data sets were digitally recorded and analyzed using dedicated software. The following variables were obtained and compared between healthy dogs and dogs with MMVD at different stages: antero-posterior annulus diameter, anterolateral-posteromedial annulus diameter, commissural diameter, annulus height, annulus circumference, annulus area, anterior leaflet length, anterior leaflet area, posterior leaflet length, posterior leaflet area, non-planar angle, annulus sphericity index, tenting height, tenting area, tenting volume, the ratio of annulus height and commissural diameter.Results: Dogs with MMVD had a more circular MV annulus compared to healthy dogs as demonstrated by an increased annulus sphericity index (p=0.0179). Affected dogs had a less saddle-shaped MV manifest as a decreased annulus height to cornmissural width ratio. (p=0.0004). Tenting height (p

Nyckelord

Heart; Degeneration; Diagnostic imaging

Publicerad i

Journal of Veterinary Cardiology
2017, volym: 19, nummer: 2, sidor: 113-123
Utgivare: ELSEVIER SCIENCE BV

SLU författare

• Häggström, Jens

  • Institutionen för kliniska vetenskaper, Sveriges lantbruksuniversitet
    

• Ljungvall, Ingrid

  • Institutionen för kliniska vetenskaper, Sveriges lantbruksuniversitet
    

UKÄ forskningsämne

Klinisk vetenskap

Publikationens identifierare

• DOI: https://doi.org/10.1016/j.jvc.2017.01.002

Permanent länk till denna sida (URI)

https://res.slu.se/id/publ/83498