التفاصيل البيبلوغرافية
| العنوان: |
Modeling the isovolumic relaxation period |
| المؤلفون: |
Bernardi, Luciano, Uretsky, Barry F., Reddy, P. S., Boudreau, Robert |
| المصدر: |
Catheterization and Cardiovascular Diagnosis ; volume 11, issue 3, page 255-268 ; ISSN 0098-6569 1097-0304 |
| بيانات النشر: |
Wiley |
| سنة النشر: |
1985 |
| المجموعة: |
Wiley Online Library (Open Access Articles via Crossref) |
| الوصف: |
The isovolumic relaxation period of the left ventricular pressure curve in man has been assumed to be best represented by an exponential decay. To determine which model most closely approximates the empiric pressure data of isovolumic relaxation in man, several models were compared. They included linear, exponential with a zero mmHg pressure asymptote, exponential with a variable asymptote, and second‐to fifth‐order polynomials. In addition, four different methods of computing parameters of isovolumic relaxation by the exponential model with a variable asymptote were tested. It was found that the isovolumic relaxation period approximates an exponential, that the theoretic asymptote is variable, and that the Levenburg‐Marquardt algorithm can be used efficiently to model this period. |
| نوع الوثيقة: |
article in journal/newspaper |
| اللغة: |
English |
| DOI: |
10.1002/ccd.1810110305 |
| الإتاحة: |
https://doi.org/10.1002/ccd.1810110305Test |
| حقوق: |
http://onlinelibrary.wiley.com/termsAndConditions#vorTest |
| رقم الانضمام: |
edsbas.78532C39 |
| قاعدة البيانات: |
BASE |
