Essays about: "microbubble"

Showing result 1 - 5 of 7 essays containing the word microbubble.

  1. 1. Implementation of Super-Resolution Ultrasound Imaging for in Vitro Experiments

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

    Author : Kani Yara; [2022]
    Keywords : B-mode; Localization; Microbubbles; Poly-Vinyl-Alcohol; Tracking; Verasonics; B-mode; Localisering; Mikrobubblor; Poly-Vinyl-Alcohol; Spårning; Verasonics;

    Abstract : Ultrasound imaging systems are a safe and affordable imaging modality with the disadvantage of low spatial resolution, especially for assessing smaller vessels. However, with the implementation of super-resolution ultrasound imaging techniques, studies have shown promising results in achieving a resolution below the diffraction limit. READ MORE

  3. 2. Acoustic Droplet Vaporization : An Assessment of How Ultrasound Wave Parameters Influence the Vaporization Efficiency

    University essay from KTH/Medicinteknik och hälsosystem

    Author : Sara Öquist; [2020]
    Keywords : Acoustic Droplet Vaporization; Verasonics; Ultrasound; Vaporization Efficiency; Phase-change Contrast Agents;

    Abstract : Acoustic droplet vaporization (ADV) is a process in which a phase shift of a liquified droplet into a gaseous microbubble, is triggered using an ultrasonic wave. In contrast to utilizing conventional contrast agents in ultrasound, the phase change contrast agents used in ADV can extravasate into tumor tissue, and they offer a greater circulatory lifespan, thereby increasing the potential applications in which they can be utilized. READ MORE

  4. 3. Evaluation of ULM for sub-wavelength imaging of microvasculature in skeletal muscles : A simulation study

    University essay from Umeå universitet/Institutionen för fysik

    Author : Andreas Selin; [2020]
    Keywords : ;

    Abstract : A vital part of the human anatomy is the circulatory system, which branches out in a vast network of vessels delivering oxygen and other nutrients to all parts of the body. In a human adult, there are about 40 billion capillaries with a diameter of about 10 µm. READ MORE

  5. 4. Development of a Tool for Imaging the Pumping-Out Behavior of Poly- Vinyl Alcohol Shelled Microbubbles

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

    Author : Stina Hägglund; [2020]
    Keywords : Microbubbles; Pumping-out behavior; Verasonics; Ultrasound; Ultrafast imaging;

    Abstract : For many years, microbubbles have been used as ultrasound contrast agents to improve the quality of diagnostics, seeing that they produce more backscattering ultrasound than blood does. Novel types of microbubbles and increased knowledge about their different behaviors have led to other suggested areas of use. READ MORE

  6. 5. Image Contrast Enhancement using Poly Vinyl Alcohol Microbubble Response to High MI Ultrasound

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

    Author : Mohammed R. A. Rashid; [2018]
    Keywords : high MI ultrasound; microbubble; PVA; mechanical index; Verasonics; contrast enhancment;

    Abstract : The induced rupturing of Poly Vinyl Alcohol (PVA) microbubbles with high mechanical index (MI)ultrasound beam is used in multiple medical application such as drug delivery, image contrastenhancement and perfusion imaging.In this work, Triggered imaging technique with subtraction algorithm is used to enhance themicrobubble’s (MB) contrast over tissue (CTR). READ MORE