Understanding Ultrasonography: Exploring Dynamic Changes in the Body

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In summary, the conversation discusses the use of ultrasound in medical imaging and its specific application in Chinese Medicine, particularly on the acupuncture point St36. The use of ultrasonic waves on this point resulted in positive DeQi sensations, but it is unclear if there are any other physical changes generated. The conversation ends with the suggestion that further discussion on this topic is beyond the scope of the conversation.
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curiousman
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Hi team of experts,
Firstly, I'm not a physicist so apologies for the high level of ignorance.

How do ultrosonographic images work? Let's assume I want to observe dynamic changes within a specific area of the body. What type of dynamic changes are detected on those images?

Thanks,
Jose
 
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  • #2
Ultrasound works like radar (kind of light waves) or the way bats (kind of high pitched sound waves) help something to "see". The machine emits sound and receives back sound that bounces off objects that have different densities; bone versus muscle and so on. Different emitter settings and different receiver processing settings allow the machine to perform differing analyses. It is a big subject. NIH has an entire institute given over to medical imaging - xrays, sonography, radio isotope imaging, MRI and PET technologies. Each of these has application where they really shine as investigative tools. No one technology works really well or is actually practical in every kind of test.

Ultrasound is one of many:
https://www.physics.utoronto.ca/~jharlow/teaching/phy138_0708/lec04/ultrasoundx.htm.

If you want an answer to 'observe dynamic changes within a specific area of the body' you need to state specifics. Like I want to see peristalsis or muscle contraction.

No specifics means we cannot give you a good answer.
 
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Thanks Jim.
I have found an abstract summary referring to Chinese Medicine: https://www.ncbi.nlm.nih.gov/pubmed/29105475
St36 - Zu San Li is an acupuncture point located about four-finger space below the patella in the depression on the lateral side of the tibia. It seems that ultrasonic waves were applied on the area at the time that the point was punctured with a needle. The result seems to be positive in the way that Chinese Medicine explains as DeQi sensation, directly proportional to the acupuncture effect.

DeQi sensation does not generate physical changes within the body once they are inserted apart of some kind of skin redness, gooseflesh around the needle insertion which I assume it's what was detected on the images.

Would it have any other rational explanation apart of the suggested above?
 
  • #4
We just left the bounds of things we can effectively discuss here. Thread closed.
 

FAQ: Understanding Ultrasonography: Exploring Dynamic Changes in the Body

What is an ultrasonographic image?

An ultrasonographic image, also known as ultrasound or sonogram, is a medical imaging technique that uses high frequency sound waves to produce images of structures inside the body. These images can be used to diagnose and monitor various medical conditions.

How is an ultrasonographic image created?

An ultrasonographic image is created by sending high frequency sound waves into the body using a transducer, which captures the echoes of the sound waves as they bounce off different tissues and organs. These echoes are then converted into an image by a computer, which is displayed on a screen for interpretation.

What are the advantages of using ultrasonographic images?

One of the main advantages of using ultrasonographic images is that it is a non-invasive and painless procedure. It also does not use any radiation, making it safer than other imaging techniques. Additionally, it can provide real-time images and can be used to guide procedures such as biopsies.

What are the limitations of ultrasonographic images?

Ultrasonographic images may not be able to penetrate through air or bone, so it may not be effective in imaging structures behind these barriers. It also has limitations in imaging deep structures or structures that are surrounded by gas or bone. The quality of the image may also be affected by factors such as patient body size and the skill of the technician performing the procedure.

What are some common uses of ultrasonographic images?

Ultrasonographic images are commonly used in obstetrics to monitor the growth and development of a fetus during pregnancy. It is also used in diagnosing and monitoring various medical conditions such as gallstones, kidney stones, and tumors. It can also be used to guide procedures such as biopsies and injections.

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