Ultrasound contrast agents
نویسندگان
چکیده
منابع مشابه
Bioeffects considerations for diagnostic ultrasound contrast agents.
Diagnostic ultrasound contrast agents have been developed for enhancing the echogenicity of blood and for delineating other structures of the body. Approved agents are suspensions of gas bodies (stabilized microbubbles), which have been designed for persistence in the circulation and strong echo return for imaging. The interaction of ultrasound pulses with these gas bodies is a form of acoustic...
متن کاملToward increased applicability of ultrasound contrast agents
Ultrasound is one of the most widely used modalities in medical imaging because of its high costeffectiveness, wide availability in hospitals, generation of real-time images, and use of nonionizing radiation. However, the image quality can be insufficient in some patients. Introducing a contrast agent (CA), which comprises a suspension of 2–6 μm-sized microbubbles, improves the image quality an...
متن کاملSwitching of MRI Contrast Agents with Ultrasound
Purpose The utility of (super)paramagnetic agents to enhance contrast in MRI has been for some time demonstrated in human studies. The contrast provided by these agents arises from their ability to achieve reductions in T1 and T2*. Another approach to designing contrast agents is to consider the use of ultrasound (US). We have developed a method involving the application of US in MRI in the pre...
متن کاملUltrasound contrast agents affect the angiogenic response.
OBJECTIVES The interaction of ultrasound contrast agents (UCAs) and ultrasound (US) provides a way to spatially and temporally target tissues. Recently, UCAs have been used therapeutically to induce localized angiogenesis. Ultrasound contrast agents, however, have been documented to induce negative bioeffects. To further understand the balance of risks and benefits of UCAs and to examine the me...
متن کاملMicrobubble ultrasound contrast agents: a review.
The superior scattering properties of gas bubbles compared with blood cells have made microbubble ultrasound contrast agents important tools in ultrasound diagnosis. Over the past 2 years they have become the focus of a wide and rapidly expanding field of research, with their benefits being repeatedly demonstrated, both in ultrasound image enhancement, and more recently in drug and gene deliver...
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ژورنال
عنوان ژورنال: Endoscopic Ultrasound
سال: 2016
ISSN: 2303-9027
DOI: 10.4103/2303-9027.193594