Paper Info
Title
Investigation of the arterial stiffness on renal artery Doppler sonograms.
Abstract
This study aims to identify the effect of stiffness on renal artery Doppler sonograms by using a curve fitting approach. The study includes 20 patients with suspected renovascular hypertension. Each patient underwent recordings during renal artery examinations before and after administration of Captopril 25 mg (Kapril tablet, MN Pharmaceuticals, Istanbul, Turkey). Doppler signals were analyzed with short time Fourier transformation, followed by curve fitting to sonograms using Savitzky-Golay method. Doppler parameters obtained from pre- and post-Captopril curve-fitted sonograms were statistically compared with "Paired-Samples t-Test". Captopril administration resulted in a significant decrease in the mean frequency and a significant increase in Pulsatility Index of the periods. No significant difference was detected between maximum systolic and minimum diastolic frequencies, Resistivity Index, and the Acceleration Index. The computational approach in this study appears to be promising.
Year
DOI
Venue
2009
10.1007/s10916-008-9169-1
J. Medical Systems
Keywords
Field
DocType
arterial stiffness,post-captopril curve-fitted sonograms,doppler parameter,doppler ultrasound.compliance. short time fourier transformation. savitzky-golay smoothing method.arterial stiffness,significant decrease,doppler signal,acceleration index,renal artery doppler sonograms,resistivity index,pulsatility index,significant increase,significant difference,indexation,curve fitting,short time fourier transform
Renal artery,Data mining,Diastole,Doppler effect,Surgery,Vascular resistance,Renovascular hypertension,Medicine,Renal Artery Obstruction,Internal medicine,Cardiology,Arterial stiffness,Captopril
Journal
Volume
Issue
ISSN
33
2
0148-5598
Citations 
PageRank 
References 
2
0.49
2
Authors
2
Name
Order
Citations
PageRank
Mahmut Tokmakçi173.36
Nuri Erdogan2153.28