TY  - BOOK
AU  - Sulieman Mohammed Salih Zobly
AU  - Abubakr Mohamed Youssef , 
AU  - Yasser Mustafa Kadah , 
TI  - Processing methodologies for Doppler ultrasound signals / 
PY  - 2012///
CY  - Cairo : 
PB  - Sulieman Mohammed Salih Zobly , 
KW  - Doppler ultrasound
KW  - Reconstruction
KW  - Spectrogram
N1  - Thesis (Ph.D.) - Cairo University - Faculty of Engineering - Department of Systems and Biomedical Engineering; Issued also as CD
N2  - The Doppler shift is now commonly used in ultrasound imaging to determine blood flow velocity and direction . During the acquisition of Doppler data a train of pulses transmitted repeatedly to be acquired from selected region of interest . The current data acquisition in Doppler system is limited by bioeffect of ultrasound heating , which is caused by rapid transmission of ultrasound pulses for a long time to the same location increase the average power per unit area beyond the AIUM safety standard
ER  -