Radionuclide techniques for valvular regurgitant index: comparison in patients with normal and depressed ventricular function

Détails

ID Serval
serval:BIB_C546D74B1247
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
Radionuclide techniques for valvular regurgitant index: comparison in patients with normal and depressed ventricular function
Périodique
Journal of Nuclear Medicine
Auteur(s)
Nicod  P., Corbett  J. R., Firth  B. G., Dehmer  G. J., Izquierdo  C., Markham, R. V., Jr. , Hillis  L. D., Willerson  J. T., Lewis  S. E.
ISSN
0161-5505 (Print)
Statut éditorial
Publié
Date de publication
09/1982
Volume
23
Numéro
9
Pages
763-9
Notes
Comparative Study
Journal Article
Research Support, Non-U.S. Gov't
Research Support, U.S. Gov't, P.H.S. --- Old month value: Sep
Résumé
We compared contrast angiography with three techniques of quantitating valvular regurgitation from radionuclide ventriculograms in 70 patients: 45 with documented regurgitation graded 1-4+, and 25 without regurgitation. The radionuclide "regurgitant index" (ratio of L to R ventricular stroke counts) was measured from fixed end-diastolic regions of interest (method A), from separate end-diastolic and end-systolic regions of interest (method B), and from a "stroke-volume image" (method C). Sensitivities for detecting 1+ or more regurgitation were: method A = 57.8%, method B = 37.8% and method C = 62.2%. Sensitivities for detecting 2+ or more regurgitation were: method A = 74.2%, method B = 54.8%, and method C = 77.4%. All methods are greater than 97% specific. Interobserver coefficients of variability were: method A = 9.1%, method B = 19.2%, and method C = 5.4%. The sensitivity of each method was improved when left-ventricular ejection fractions were greater than 0.35. No method consistently differentiated between 2+, 3+, and 4+ valvular regurgitation.
Mots-clé
Angiography Aortic Valve Insufficiency/radiography/*radionuclide imaging Erythrocytes Female Heart Catheterization Humans Male Middle Aged Mitral Valve Insufficiency/radiography/*radionuclide imaging Stroke Volume Technetium/diagnostic use
Pubmed
Web of science
Création de la notice
25/01/2008 15:00
Dernière modification de la notice
03/03/2018 21:15
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