ISSN 1016-5169 | E-ISSN 1308-4488
Archives of the Turkish Society of Cardiology
pdf
Value of Proximal Isovelocity Surface Area Method in Calculation of Mitral Valve Area in Patients with Mitral Stenosis [Turk Kardiyol Dern Ars]
Turk Kardiyol Dern Ars. 1997; 25(8): 471-476

Value of Proximal Isovelocity Surface Area Method in Calculation of Mitral Valve Area in Patients with Mitral Stenosis

Dilek URAL1, Barış İLERİGELEN1

Proximal isovelocity surface area method (PISA) is a new technique based on the continuity principle, and its use in the measurement of orifice areas is still being developed. The aim of our study is to estimate the value of that method in the measurement of mitral valve area (MV A) in cases with mitral valve stenosis, to compare its accuracy with traditional echocardiographic methods, planimetry and Doppler pressure half-time and to investigate the factors which affect MV A measurements. MV As of 30 consecutive patients with mitral valve stenosis (mean age 43±14-25 female, 5 male) referred to echocardiography laboratory were obtained with planimetry, Doppler pressure half-time and PISA and their results were compared by coefficient of correlation (r). Patients were also evaluated due to their image quality, presence of additional factors such as atrial fibrillation, mitral regurgitation and aortic regurgitation. MV As measured by PISA are closely correlated to classical echocardiographic methods, especially to planimetry. Coefficients of correlation between that method and planimetry and Doppler were r=0.86 and r=0.68 respectively. The most important problem in the estimation of MV A by PISA was the accurate determination of the aliasing radius (r). When the latter was less than 1 cm PISA results are not comparable to these of other methods. In the presence of atrial fibrillation, mitral regurgitation and aortic regurgitation, PISA was more comparable to planimetry which is a reliable method in these situations. However, in cases with inadequate image qualities, planimetry lost its reliability, and measurements of PISA was not affected its results were closer to Doppler pressure half-time.


How to cite this article
Dilek URAL, Barış İLERİGELEN. Value of Proximal Isovelocity Surface Area Method in Calculation of Mitral Valve Area in Patients with Mitral Stenosis. Turk Kardiyol Dern Ars. 1997; 25(8): 471-476
Manuscript Language: Turkish


Journal Metrics

Journal Citation Indicator: 0.18
CiteScore: 1.1
Source Normalized Impact
per Paper:
0.22
SCImago Journal Rank: 0.348

Quick Search



Copyright © 2024 Archives of the Turkish Society of Cardiology



Kare Publishing is a subsidiary of Kare Media.