Acoustic angiography
Acoustic Angiography
Acoustic angiography (pronunciation: /əˈkuːstɪk ændʒiˈɒɡrəfi/) is a medical imaging technique used to visualize the blood vessels in the body. This technique uses ultrasound and microbubble contrast agents to create high-resolution, three-dimensional images of the vasculature.
Etymology
The term "acoustic angiography" is derived from the Greek words "akoustikos" (relating to hearing or sound) and "angeion" (vessel) combined with the suffix "-graphy" (to write or record). Thus, the term can be interpreted as "recording of the vessels using sound".
Procedure
Acoustic angiography is performed by injecting a patient with microbubble contrast agents, which are tiny gas-filled bubbles that enhance the contrast in ultrasound images. The patient is then scanned with an ultrasound machine, which sends sound waves into the body. These sound waves bounce off the microbubbles and return to the ultrasound machine, creating a detailed image of the blood vessels.
Applications
Acoustic angiography is primarily used to detect and diagnose vascular diseases, such as atherosclerosis, aneurysm, and vascular malformation. It can also be used to guide interventions, such as angioplasty and stent placement.
Advantages and Limitations
One of the main advantages of acoustic angiography is its ability to provide high-resolution images of the vasculature without the use of ionizing radiation. However, the technique is limited by its dependence on the presence of microbubbles in the blood vessels, which can be affected by factors such as blood flow and bubble size.
Related Terms
External links
- Medical encyclopedia article on Acoustic angiography
- Wikipedia's article - Acoustic angiography
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