Essays about: "Ultrasound Transducer"

Showing result 1 - 5 of 23 essays containing the words Ultrasound Transducer.

  1. 1. Methods for determining focal point and delay for ultrasound arrays and multichannel electronics

    University essay from Lunds universitet/Avdelningen för Biomedicinsk teknik

    Author : Svante Rosenlind; [2023]
    Keywords : Focusing algorithms; k-wave; Spatiotemporal inverse filter; Gerchberg- Saxton algorithm; Focused ultrasound; Technology and Engineering;

    Abstract : High intensity focused ultrasound is a growing technique for tissue ablation, among other uses, and given its destructive capabilities, there is a need for control of where the energy is delivered. There exist a number of methods for focusing such ultrasound arrays, but these often assume prior knowledge of the impulse response, or require extensive full-system simulations. READ MORE

  3. 2. 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

  4. 3. Evaluation of Use and limitations of ProbeHunter in Västmanland Region

    University essay from Uppsala universitet/Tillämpad materialvetenskap

    Author : Elyas Torgul; Berfin Mohammed; [2022]
    Keywords : File management; ProbeHunter; FirstCall; Ultrasound transducer; Filhantering; ProbeHunter; FirstCall; Ultraljudsgivare;

    Abstract : The aim of this thesis is to investigate an ultrasound transducer testing system calledProbeHunter and determine the limits of the device. This device requires custom configuratedfiles to adapt to and be applicable for new ultrasound probes. READ MORE

  5. 4. Ultrasound Imaging Velocimetry using Polyvinyl Alcohol Shelled Microbubbles

    University essay from KTH/Skolan för kemi, bioteknologi och hälsa (CBH)

    Author : Ida Johansson; [2022]
    Keywords : Ultrasound imaging velocimetry; ultrasound contrast agents; polyvinyl alcohol; microbubbles; echo particle image velocimetry; Ultrasound imaging velocimetry; ultraljudskontrastmedel; polyvinylalkohol; mikrobubblor; echo particle image velocimetry;

    Abstract : Current research within the field of ultrasound contrast agents (UCAs) aims at developing capsules which are not only acoustically active, but also have a chemically modifiable surface. This enables use in new areas, including targeted drug delivery and theranostics. READ MORE

  6. 5. Compensating for ultrasound frequency attenuation in tissue when determining tissue effective particle size

    University essay from Lunds universitet/Avdelningen för Biomedicinsk teknik

    Author : Karolina Sandell; [2021]
    Keywords : Technology and Engineering;

    Abstract : Giant cell arteritis is a disease the affects the arteries, for example the temporal artery. When affecting the temporal artery, it can cause serious consequences such as blindness and stroke. The existing methods for diagnosing the disease are invasive, time consuming and costly. READ MORE