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Skip to Search Results- 1Barber, Quinn
- 1Choi, Min
- 1Egolf, David M.
- 1Forbrich, Alexander E
- 1Harrison, Tyler J
- 1Kashani Ilkhechi, Afshin
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Fall 2014
Optical imaging has long been a gold standard for medical imaging. However, due to the high optical scattering in tissues, it has not been possible to image deeper than a few wavelengths with a useful resolution. Photoacoustic imaging - the use of short-pulsed lasers to induce an ultrasound...
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Fall 2017
For cancer research, a powerful imaging modality for both preclinical (where the focus is on imaging small animals) and clinical (where the focus is on imaging human subjects) applications should be inexpensive, portable, noninvasive, safe, and capable of measuring a myriad of information....
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Fall 2023
Sound waves can be generated by shining a pulsed laser on an object of interest. The resulting sound waves can be observed with an ultrasound transducer, and then reconstructed to form an image of the object. The entire process is called "photoacoustic imaging". Medical photoacoustic imaging aims...
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Spring 2018
Being able to characterize and assess hemodynamics in patients is regarded as essential in understanding vascular and tissue health for diagnostic purposes. There are many parameters associated with hemodynamics such as intravascular pressure, flow rates and perfusion rates, which are important...
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Large-Scale Multi-Frequency Capacitive Micromachined Ultrasonic Transducer (CMUT) Arrays for Ultrasound Medical Imaging and Therapeutic Applications
DownloadSpring 2020
Ultrasonic transducers capable of operating over multiple frequency bands could have several interesting medical applications including multi-resolution multi-depth imaging for point-of-care ultrasound, imaging-therapy, super-harmonic contrast agent imaging, super-resolution imaging, image-guided...
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Fall 2014
Tumor metastasis is referred to the spread of cancer from one to another unadjacent part of the body, which results in more than 90% of tumor deaths, and however is still poorly understood. Circulating tumor cells (CTCs) have been proposed as an important biomarker of tumor metastasis. Many...
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Top-Orthogonal-to-Bottom-Electrode Capacitive Micromachined Ultrasound Transducers for Low-Cost 3D Ultrasound Imaging
DownloadFall 2013
Capacitive micromachined ultrasound transducers (CMUTs) offer a promising solution for three-dimensional ultrasound imaging due to their ability to be easily fabricated in two-dimensional arrays. However, channel routing is still non-trivial and cost-intensive. The subject of this thesis is a...
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Transparent transducers and fast electronics for next-generation ultrasound and photoacoustic imaging
DownloadSpring 2022
Most ultrasound transducers are opaque. Transparent transducers could lead to novel applications, including combined optical and ultrasound imaging, photoacoustic imaging and other multi-modality systems. This thesis introduces transparent capacitive micromachined ultrasound transducers and...
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Fall 2017
Molecular imaging techniques are important for understanding fundamental biological processes and genetic functions in organisms. Non-invasive, high-resolution, deep imaging, as well as the ability to separate molecular species, are all critical to the success of a molecular imaging technique....