Skip to main content

Main navigation

  • About ITEFI
  • Research
  • Formación y empleo
  • OpenLab
  • Servicios científico técnicos
  • Staff Directory

Influences of Echo-responses SNR on Time & Spectral Shifts related to Estimation of Thermal Parameters based on Overtones Processing for Medical Diagnosis

echo signals
signal to noise ratio
time shift
spectral shift
temperature estimation
ultrasound
overtones
I. Bazan, A. Ramos
2016 Global Medical Engineering Physics Exchanges / Pan American Health Care Exchanges (GMEPE /PAHCE). IEEE Catalog number: CFP1618G-DVD
https://doi.org/10.1109/GMEPE-PAHCE.2016.7504659

Some new researches for non-invasive diagnostic applications, by detecting local thermal gradients on internal tissues, seeking a very-early detection of some types of cancer are a promising investigation way with high medical interest. The signals processing methods and algorithms, in which those are based, must be robust enough, even when the echoresponses contain moderated levels of coherent noise.

In this paper, the influences of some levels of induced noises, including those of the coherent type, are analyzed in time & frequency domains. The power spectrum shifts on overtones are also investigated. So, an analysis of time & frequency curves alterations and of finally estimated thermal distribution is made, for distinct synthetic noisy multi-pulse waveforms, similar to those appearing in real echo-acquisitions.

Finally, some behaviors in waveforms and power spectra are analyzed from complex noisy echo-waveforms containing many ultrasonic pulses overlapping among them.

GSTU
Acoustics and Non Destructive Evaluation (DAEND)
  • Environmental Acoustics (GAA)
  • G Carma: Materials Characterization by Non Destructive Evaluation
  • ULAB, Ultrasounds for Liquid Analysis and Bioengineering
Information and Communication Technologies (TIC)
  • Cybersecurity and Privacy Protection Research Group (GiCP)
  • Research group on Cryptology and Information Security (GiCSI)
    • Quantum Communications Laboratory (LCQE)
  • Multichannel Ultrasonic Signal Processing Group (MUSP)
Sensors and Ultrasonic Systems (DSSU)
  • Ultrasonic Systems and Technologies (USTG)
  • Nanosensors and Smart Systems (NoySi)
  • Ultrasonic Resonators for cavitation and micromanipulation (RESULT)
  • Advanced Sensor Technology (SENSAVAN)
  • Quantum Electronics (QE)
Laboratorios
  • Laboratorio de Acústica
  • Laboratorio de Metrología Ultrasónica Médica (LMUM)
  • Laboratorio de Comunicaciones Cuánticas
  • Laboratory for International Collaboration in Advanced Biophotonics Imaging

Instituto de Tecnologías Físicas y de la Información Leonardo Torres Quevedo  - ITEFI
C/ Serrano, 144. 28006 - Madrid • Tel.: (+34) 91 561 88 06  Contacto  •  Intranet
EDIFICIO PARCIALMENTE ACCESIBLE POR PERSONAS CON MOVILIDAD REDUCIDA