[Detection of calcium in mitral valve diseases using computer-assisted 2-dimensional echocardiography].
In order to detect mitral valve calcification, 31 consecutive patients were examined using two-dimensional echocardiography 1 day before mitral valve replacement. Calcifications of the valve were diagnosed by digital image control (grey-scale manipulation using S-curve and reject control). After the operation, the excised valves were X-rayed to determine the degree of calcification. Calcifications of the mitral valve were found by echocardiography with a sensitivity of 89.5%, a specificity of 91.7% and a predictive accuracy of 90.3%. The degree of calcification, however, was underestimated in 47%. The results show that the described grey-scale manipulations are a reliable method of detecting calcifications of the mitral valve by echocardiography. This enables the preoperative identification of those patients who are suitable for mitral valve commissurotomy.
Nowak
B
B
Rotes-Kreuz-Krankenhaus, Abteilung Kardiologie, Universitätsklinik Frankfurt a. M.
Reifart
N
N
Satter
P
P
D002114:Calcinosis / Q000473:pathology* / Q000601:surgery; D006328:Cardiac Catheterization; D004452:Echocardiography / Q000295:instrumentation*; D005260:Female; D006801:Humans; D007090:Image Interpretation, Computer-Assisted / Q000295:instrumentation*; D008297:Male; D008875:Middle Aged; D008943:Mitral Valve / Q000473:pathology*; D008946:Mitral Valve Stenosis / Q000473:pathology* / Q000601:surgery
Kalknachweis bei Mitralvitien mittels rechnergestützter zweidimensionaler Echokardiographie.