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
Institution
Titre
Radionuclide techniques for valvular regurgitant index: comparison in patients with normal and depressed ventricular function
Périodique
Journal of Nuclear Medicine
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
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
20/08/2019 16:40