Essays about: "ultrasound modulation"

Showing result 1 - 5 of 6 essays containing the words ultrasound modulation.

  1. 1. Improving the experimental setup for ultrasound-optical tomography imaging

    University essay from Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

    Author : Ibtisam Dahir Ahmed; [2023]
    Keywords : Ultrasound-optical tomography UOT ; thulium-doped lithium niobate;

    Abstract : According to Bröstcancer förbundet, mammography is not efficient at detecting tumors in dense breast tissue or diagnosing breast cancer at its early stages. Ultrasound-optical tomography (UOT) is an imaging technique in development and has the potential for deep-tissue imaging. READ MORE

  3. 2. Developing a technique for combining light and ultrasound for deep tissue imaging

    University essay from Lunds universitet/Atomfysik; Lunds universitet/Fysiska institutionen

    Author : Meng Li; [2018]
    Keywords : UOT; Ultrasound Optical Tomography; Monte Carlo; TCSPC; PTOF; Photon time of flight; Ultrasound; US; AOT; Acousto-optical tomography; Spectral hole burning; SHB; ultrasound modulation; Physics and Astronomy;

    Abstract : Biological tissues are strongly light-scattering and absorbing media that limit the depth of optical-based imaging. Even though, optical imaging provides good optical contrast information of biological content that is beneficial for clinical diagnostics application. READ MORE

  4. 3. Olinjärt ultraljud för undersökning av sprickor i skelettet hos häst, en pilotstudie

    University essay from SLU/Dept. of Clinical Sciences

    Author : Katarina Sandelin; [2015]
    Keywords : skelettskada; NAW; sidband; mikrosprickor; fraktur; micro cracks; fracture; fissure; side band;

    Abstract : Fissurer och odislocerade frakturer hos häst kan ibland vara svåra att upptäcka utan avancerad bilddiagnostik. Det är dock viktigt att diagnostisera dem i tid för att hindra att skadorna förvärras. READ MORE

  5. 4. Nonlinear Non-Destructive Testing of ship hull composites

    University essay from Blekinge Tekniska Högskola/Sektionen för ingenjörsvetenskap

    Author : Johan Larsson; Daniel Pettersson; [2004]
    Keywords : Non-contact testing; Non-Destructive Testing; Ultrasonic testing; Nonlinear Wave Modulation Spectroscopy; Sound velocity; Resonance.;

    Abstract : Further development of an existing nonlinear ultrasound Non-Destructive Testing method is performed. The Nonlinear Wave Modulation Spectroscopy method is developed into an automated non-contact testing method. The method detects nonlinearities, such as cracks and delaminations, in a test object. READ MORE

  6. 5. Non-linear ultrasound investigation of extended plates

    University essay from Blekinge Tekniska Högskola/Sektionen för ingenjörsvetenskap

    Author : Rikard Gunnarsson; [2003]
    Keywords : Ultrasonic NDT; Non-linear acoustic testing; Non-linear non-destructive testing; Non-linear Wave Modulation Spectroscopy; Non-linear Elastic Wave Spectroscopy; Micro crack detection;

    Abstract : A non-linear ultrasound non-destructive testing method called Non-linear Wave Modulation Spectroscopy is studied. The method shows the non-linearity of the test specimen and can in that way detect cracks. It is at present non-localizing. READ MORE