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Shadnaz Asgari, PhD

Shadnaz Asgari, Ph.D.

Position

Full-Time Researcher

 

 

 

Hospital Affiliation

Ronald Reagan UCLA Medical Center
Department of Neurosurgery
David Geffen School of Medicine at UCLA
10833 Le Conte Avenue, CHS 74-145
Box 956901
Los Angeles, CA 90095-6901

EDUCATION

  • Post-Doc training, Neurosurgery Dept.,  UCLA, 2008-2010
  • Ph.D., Electrical Engineering Dept., UCLA,  2005-2008

PROJECT DESCRIPTION

Biomedical signal processing towards effective clinical forecast of the physiological events for the patients in the Neuro-ICU.

PUBLICATIONS

Book Chapter

  • Federico S. Cattivelli, Shadnaz Asgari, Paul Vespa, Ali H. Sayed, Marvin Bergsneider and Xiao Hu. Use of Constrained Nonlinear Kalman Filtering to Detect Pathological Constriction of Cerebral Arterial Blood Vessels:143-162, Application of Kalman Filter, I-Tech Education and Publishing. (2009).

Journal Papers

  •  Shadnaz Asgari, Paul Vespa, Marvin Bergsneider, Xiao Hu.  Latency Relationship Between Cerebral Blood Flow Velocity and Intracarnial Pressure. Acta Neurochir Suppl, vol. 114,  In press, 2011.
  • Fabien Scalzo, Robert Hamilton, Shadnaz Asgari, Sunghan Kim, Xiao Hu.  Intracranial Hypertension Prediction using Extremely Randomized Decision Trees. Medical Engineering and Physics. in press, 2011.
  • Fabien Scalzo, Shadnaz Asgari, Sunghan Kim, Marvin Bergsneider, Xiao Hu. Bayesian tracking of intracranial pressure signal morphology. Artif Intell Med. 2011 Oct 1. [Epub ahead of print]
  • Shadnaz Asgari, Paul Vespa, Marvin Bergsneider, Xiao Hu.  Lack of Consistent Intracranial Pressure Pulse Morphological Changes during  Episodes of Microdialysis Lactate/Pyruvate Ratio Increase. Physiol Meas, vol. 32(10), pp.1639-1651, Sep 9, 2011
  • Shadnaz Asgari, Andrew Subudhi, Robert C. Roach, David S. Liebeskind, Marvin Bergsneider, Xiao Hu. An Extended Intracranial Latency Analysis Model Facilitates Non_Invasive Detection of Cerebrovascular Changes,J Neuroscience Mehtods. 2011 Apr 15; 197(1):171-9. Epub 2011 Feb 15.
  • Fabien Scalzo, Shadnaz Asgari, Sunghan Kim, Marvin Bergsneider, Xiao Hu. Robust Peak Recognition in Intracranial Pressure Signals, Biomed Eng Online. 2010 Oct 19;9:61.
  • Shadnaz Asgari, Marvin Bergsneider , Robert Hamilton, Paul Vespa, Xiao Hu. Consistent changes in intracranial pressure  waveform morphology induced by acute yypercapnic cerebral vasodilatation. Neurocritical Care. 2011 Aug;15(1):55-62
  • Magdalena Kasprowicz, Shadnaz AsgarI, Marvin Bergsneider, Marek Czosnyka, Robert Hamilton,  Xiao Hu Pattern Recognition of Overnight Intracranial Pressure Slow Waves using Morphological Features of Intracranial Pressure Pulse, Journal of J Neurosci Methods. 2010 Jul 15;190(2):310-8. Epub 2010 May 26.
  • Shadnaz Asgari, Marvin Bergsneider, Xiao Hu. A Robust Approach towards Recognizing Valid Arterial Blood Pressure Pulses.  IEEE Transactions on Information Technology in Biomedicine 2010, 14(1): pp 166-172.
  • Fabien Scalzo, Peng Xu, Shadnaz Asgari, Marvin Bergsneider, Xiao Hu. Regression Analysis for Peak Designation in  Intracranial Pressure Signals. Medical & Biological Engineering Computing. Med Biol Eng Comput. 2009 September; 47(9): pp. 967-977.
  • Monica Sapo, Shaozhi Wu, Shadnaz Asgari , McNair N, Farzad Buxey, Neil Martin, Xiao Hu. A Comparison Study of Vital Signs Charted by Nurses with Automated Acquired Values. Journal of Clinical Monitoring and Computing. 2009, 23(5) :pp. 263-271.
  • Shadnaz Asgari, Peng Xu, Marvin Bergsneider, Xiao Hu. A subspace decomposition approach toward recognizing valid pulsatile signals. Physiol Meas, 2009. 30(11): p. 1211-1225.
  • Xiao Hu, Peng Xu, Shaozhi Wu, Shadnaz Asgari, Marvin Bergsneider. A data mining framework for time series estimation, Journal of biomedical Informatics, 2009, 43(2): p. 190-9.
  • Xiao Hu, Peng Xu, Shadnaz Asgari, Paul Vespa, Marvin Bergsneider. Forecasting ICP Elevation Based on Prescient Changes of Intracranial Pressure Waveform Morphology IEEE Trans Biomed Eng, 2010 May;57(5):1070-8.
  • Xiao Hu, Andrew Subudhi, Peng Xu, Shadnaz Asgari, Robert Roach, Marvin Bergsneider. Inferring Cerebrovascular Changes from Latencies of Systemic and Intracranial Pulses: a Model-Based Latency Subtraction Algorithm. Journal of Cerebral Blood Flow and Metabolism, (2009) Vol. 29, pp. 688-697.
  • Andreas Ali, Shadnaz Asgari, Travis Collier, Mike Allen, Lewis Girod, Ralph Hudson, Kung Yao, Charles Taylor, Daniel Blumstein. An Empirical Study of Collaborative Acoustic Source Localization Journal of Signal Processing Systems, (2009) Vol. 57, pp. 415-336.
  • Jing Zhao Stafsudd , Shadnaz Asgari, Ralph Hudson , Kung Yao , E. Taciroglu Localization of Short-range Acoustic and Seismic Wideband Sources: Algorithms and Experiments. Journal of Sound and Vibration, 2008 (Vol. 312), pp. 74-93.
  • Jing Zhao Stafsudd , Shadnaz Asgari, Andreas Ali, Chiao-En Chen, Flavio Lorenzelli, Ralph Hudson , Kung Yao , E. Taciroglu Analysis, Implementation, and Application of Acoustic and Seismic Arrays. ACTA Automatica Sincia, November 2006 (Vol. 32, No. 6), pp. 929-93.
  • Pierpaolo Bergamo, Shadnaz Asgari, Hanbiao Wang, Daniela Maniezzo, Len Yip, Ralph E. Hudson, Kung Yao, Deborah Estrin, Collaborative Networking Towards Real-Time Acoustical Beamforming in Free-Space and Limited Reverberant Scenario. IEEE transactions on mobile computing, September 2004 (Vol. 3, No. 3), pp.211-224.

Conference and Workshop Papers

  • Shadnaz Asgari, Paul Vespa, Xiao Hu, Marvin Bergsneider. Latency Relationships between Cerebral Blood Flow Velocity and Intracranial Pressure, 14th international conference on intracranial pressure and brain monitoring (Ranked among top 12 abstracts (out of 226) in the ICP conference.
  • Robert Hamilton, Peng Xu, Shadnaz Asgari, Magdalena Kasprowicz, Paul Vespa, Marvin Bergsneider, Xiao Hu. Forecasting Plateau Waves Based on Prescient Changes of Intracranial Pressure Waveform Morphology. IEEE conference on Engineering in medicine and biology, 2009, Vol.1, pp. 4331-4.
  • Shaozhi Wu, Peng Xu, Shadnaz Asgari, Marvin Bergsneider, Xiao Hu. Time Series Mining Approach for Noninvasive Intracranial Pressure Assessment: an Investigation of Different Regularization Techniques. 2009 World Congress on Computer Science and Information Engineering, CSIE2009, Los Angeles, CA.
  • Sandi Lam, Shadnaz Asgari, Xiao Hu, Marvin Bergsneider. Morphologic Intracranial Pressure Waveform Analysis in the Setting of Ventricular Enlargement. American Association of Neurological Surgeons conference (10/2008).
  • Shadnaz Asgari, Andreas Ali, Travis Collier, Yuan Yao, Ralph Hudson, Kung Yao, Charles Taylor. Theoretical and Experimental Study of DOA Estimation Using AML Algorithm for an Isotropic and Non-Isotropic 3D Array SPIE Conference on Advanced Signal Processing Algorithms, Architectures, and Implementations, August 2007.
  • Chiao-En Chen, Andreas Ali , Hanbiao Wang , Shadnaz Asgari , Hyunggon Park , Ralph Hudson , Kung Yao , Charles Taylor Design and Testing of Robust Acoustic Arrays for Localization and Enhancement of Several Bird Sources International Conference on Information Processing in Sensor Networks (IPSN 2006), April 2006.
  • Hanbiao Wang, Chiao-En Chen, Jing Zhao Stafsudd, Shadnaz Asgari, Andreas Ali, Ralph Hudson, Flavio Lorenzelli, Kung Yao, E. Taciroglu. Analysis, Implementation and Application of Acoustic and Seismic Arrays. IEEE international workshop on sensor networks and applications (SNA 2005), October 2005.
  • Shadnaz Asgari, Jing Zhao Stafsudd , Andreas Ali, Chiao-En Chen, Ralph. E. Hudson, D. Whang, E. Taciroglu, Kung Yao, Collection and processing of acoustic and seismic array data for source localization. SPIE Conference on Advanced Signal Processing Algorithms, Architectures, and Implementations, August 2005.
  • Hanbiao Wang, Chiao-En Chen, Andreas Ali, Shadnaz Asgari, Ralph E. Hudson, Kung Yao, Deborah Estrin, Charles Taylor, Acoustic Sensor Networks for Woodpecker Localization. SPIE Conference on Advanced Signal Processing Algorithms, Architectures, and Implementations, August 2005.

Posters 

  • Shadnaz Asgari, Andrew Subudhi, Paul Vespa, Xiao Hu, Marvin Bergsneider. Extending an Intracranial Latency Analysis Model Facilitates Non_Invasive Detection of Cerebrovascular Changes, 14th international conference on intracranial pressure and brain monitoring, (9/ 2010).
  • Sandi Lam, Shadnaz Asgari, Xiao Hu, Ulrich Batzdorf, Marvin Bergsneider. Intracranial Phase Coordination Analysis in Chiari 1 Malformation.American Association of Neurological Surgeons conference (5/2009, San Diego, USA) .
  • Shadnaz Asgari, Ralph E. Hudson, Kung Yao Optimized three-dimensional acoustical array for source localization CENS Annual Research review (1/2006).
  •  Shadnaz Asgari, Andreas Ali, Travis Collier, Yuan Yao, Ralph Hudson, Kung Yao, Charles Taylor. Theoretical and Experimental Study of DOA Estimation Using AML Algorithm for an Isotropic and Non-Isotropic 3D Array UCLA Electrical Engineering Dept. Annual Research Review, (2/2007).

Patents

  • Shadnaz Asgari, Marvin Bergsneider, Xiao Hu. A robust approach towards recognition of valid pulsatile signals.           Filed on Feb 3, 2010. 

Awards

  • 2011 UCLA BIRC young Investigator award

LINKS

http://neurosurgery.ucla.edu

 

Ronald Reagan UCLA Medical Center Rated One of the Top Hospitals in the Nation for 23rd Consecutive Year