Types/Applications of Photoacoustic Contrast Agents: A Review
نویسندگان
چکیده
Ultrasound imaging, one of the common diagnosis techniques, is frequently used since it safe, cost-efficient technique and real-time imaging can be conducted. However, various organs tissues reflect ultrasonic waves, which leads to difficulty in small biomolecules a low spatial resolution for deep-tissue images. As such, there have been significant advances photonics optical molecular probes recent years, photoacoustic (PA) tomography (PAT) has emerged as promising modality that overcome limitations ultrasound. PAT relies on effect, conversion absorbed energy into acoustic energy. Since fewer exhibit effect compared scattering or reflection ultrasound, employed generate high-resolution also number other advantages when conventional biomedical modalities such tomography, ultrasound computed positron emission magnetic resonance imaging. This review provides general overview contrast agents PAT, including organic, inorganic hybrid agents, describes their application. identifies current suggests future research directions development.
منابع مشابه
Contrast Agents for Photoacoustic and Thermoacoustic Imaging: A Review
Photoacoustic imaging (PAI) and thermoacoustic imaging (TAI) are two emerging biomedical imaging techniques that both utilize ultrasonic signals as an information carrier. Unique advantages of PAI and TAI are their abilities to provide high resolution functional information such as hemoglobin and blood oxygenation and tissue dielectric properties relevant to physiology and pathology. These two ...
متن کاملA brief account of nanoparticle contrast agents for photoacoustic imaging.
Photoacoustic imaging (PAI) is a hybrid, nonionizing modality offering excellent spatial resolution, deep penetration, and high soft tissue contrast. In PAI, signal is generated based on the absorption of laser-generated optical energy by endogenous tissues or exogenous contrast agents leading to acoustic emissions detected by an ultrasound transducer. Research in this area over the years has s...
متن کاملmagnetic resonance imaging contrast agents: a review of literature
magnetic resonance imaging (mri) contrast agents most commonly agents used in diagnosing different diseases. several agents have been ever introduced with different peculiar characteristics. they vary in potency, adverse reaction and other specification, so it is important to select the proper agent in different situations. we conducted a systematic literature search in medline/pubmed, web of s...
متن کاملGraphene-based contrast agents for photoacoustic and thermoacoustic tomography☆
In this work, graphene nanoribbons and nanoplatelets were investigated as contrast agents for photoacoustic and thermoacoustic tomography (PAT and TAT). We show that oxidized single-and multi-walled graphene oxide nanoribbons (O-SWGNRs, O-MWGNRs) exhibit approximately 5-10 fold signal enhancement for PAT in comparison to blood at the wavelength of 755 nm, and approximately 10-28% signal enhance...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Photonics
سال: 2021
ISSN: ['2304-6732']
DOI: https://doi.org/10.3390/photonics8070287