Ultrasound Imaging with Microbubbles [Life Sciences]
نویسندگان
چکیده
منابع مشابه
Ultrasound with microbubbles
Conventional ultrasound has well known short comings in the detection and characterisation of focal liver lesions. A false negative rate of up to 30% has been quoted in the detection of liver metastases and its accuracy in the characterisation of focal liver lesions is poor compared to computed tomography (CT) and magnetic resonance (MR). Ultrasound microbubble contrast agents have redressed th...
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BACKGROUND We have previously shown that microbubbles adhere to leukocytes in regions of inflammation. We hypothesized that these microbubbles are phagocytosed by neutrophils and monocytes and remain acoustically active, permitting their detection in inflamed tissue. METHODS AND RESULTS In vitro studies were performed in which activated leukocytes were incubated with albumin or lipid microbub...
متن کاملMultifunctional microbubbles and nanobubbles for photoacoustic and ultrasound imaging.
We develop a novel dual-modal contrast agent-encapsulated-ink poly(lactic-co-glycolic acid) (PLGA) microbubbles and nanobubbles-for photoacoustic and ultrasound imaging. Soft gelatin phantoms with embedded tumor simulators of encapsulated-ink PLGA microbubbles and nanobubbles in various concentrations are clearly shown in both photoacoustic and ultrasound images. In addition, using photoacousti...
متن کاملPhysical principles of microbubbles for ultrasound imaging and therapy.
Microbubble ultrasound contrast agents have been in clinical use for more than two decades, during which time their range of applications has increased to encompass echocardiography, Doppler enhancement, perfusion studies and molecular imaging, as well as a number of therapeutic applications including drug delivery, gene therapy, high-intensity focused ultrasound treatments and sonothrombolysis...
متن کاملUltrasound Imaging using the Low-Frequency Response of Microbubbles
When microbubbles are excited by two frequency signals, a nonlinear response signal may occur at the difference frequency. As these two frequencies are made close, this nonlinear response will reside at lowfrequency region. We have derived a theory for the weak short-pulse response based on a two-frequency approximation, which provides the pressure and the bandwidth dependence properties of the...
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ژورنال
عنوان ژورنال: IEEE Signal Processing Magazine
سال: 2016
ISSN: 1053-5888
DOI: 10.1109/msp.2015.2496914