In 1801 Thomas Young described “phase shifting” in relation to light. Christian Doppler in 1842 created the “Doppler effect” which is how blood flows in pelvic vessels and the fetus. Pierre Curie in 1880 described the piezoelectric effect, where ceramic to generate ultrasonic waves.Paul Langevin in 1915 built the first hydrophone, microphone designed to be used to listen to underwater sound ,also related to measurement of the fetus and abdominal masses. Watson-Watt developed the radar in 1943 using electromagnetic waves. John Read published the first 2D images in 1952. 3D ultrasound was first developed by Olaf von Ramm and Stephen Smith in 1987.
A 6 Mhz convex array transducer has a wide footprint References Gill, R., 2012. The physics and technology of diagnostic ultrasound: a practitioner's guide. Abbotsford, N.S.W.: High Frequency Publishing.
Diagnostic medical sonography is a profession where sonographers direct high-frequency sound waves into a patient’s body through the use of specific equipment to diagnose or monitor a patient’s medical condition. As described by the Bureau of Labor Statistics, this examination is referred to as an ultrasound, sonogram, or echocardiogram. The high-frequency sound waves emitted from the handheld device, called a transducer, bounce back creating an echo and therefore produce an image that can be viewed on the sonographers computer screen. This image provides the sonographer and physician with an internal image of the patient’s body that will be used in the diagnosis. The most familiar use of ultrasound is used in monitoring pregnancies
Another form of imaging is ultrasound. Ultrasound, which uses very high frequency sound, is directed into the body. And because the tissue interference's reflect sound, doctors are able to produce, by use of a computer, a photograph or moving image on a television. Ultrasound has many application uses on the body, but is more commonly used in examinations of the fetus during pregnancy, because use of radiation may affect the outcome of the baby. Some other practices for ultrasound include examination of the arteries, heart, pancreas, urinary system, ovaries, brain, and spinal cord. And because sound travels well through fluids it is a very useful technique for diagnosing cysts( which are filled with fluid), and fluid filled structures such as the bladder. And since sound is absorbed by air and bone it is impossible to use a ultrasound on bones or lungs.
What is an ultrasound? An ultrasound is also referred to as a sonogram. It uses a high frequency sound waves to create images of the inside of the body. Why Would You Need An Ultrasound? Ultrasound imaging has many uses in medicine, from confirming and dating a pregnancy to diagnosing certain conditions
Diagnostic medical sonography is a profession where sonographers direct high-frequency sound waves into a patient’s body through use of specific equipment to diagnose or monitor a patient’s medical condition. As described by the Bureau of Labor Statistics, this examination is referred to as an ultrasound, sonogram, or echocardiogram.
Escalating advancements in medical technology has been very beneficial in diagnosing patients and providing patients with the best care possible. The use of technology in medicine has saved, extended, and improved lives. Modern day equipment in the medical field is nothing short of remarkable. The merger of technology and medicine has increased quality of life and maintained health. For example, technology has introduced equipment and improved medical research. A sonographer uses a transducer, which involves high frequency sound waves and as they reach internal organs, they are displayed on a screen as an image. This device is simple yet so crucial in ultrasounds because they diagnose the causes of infections, heart disease, blood clots
The medical ultra sound field is always continuously expanding and making medical progress, and new findings. Ultrasounds are becoming more and more popular everyday. People are coming up with many new ways to help treat patients, and also new procedures to get better, and more defined images of the body.
Introduction Physical therapist clinicians select, prescribe, and implement use of physical agents for a number of therapeutically beneficial reasons.1 According to Cameron,2 physical agents are defined as energy or materials physically applied to patients to assist in rehabilitation. They include heat, cold, water, pressure, sound, electromagnetic radiation, and electrical currents. This study will focus on the use of therapeutic ultrasound (US) to treat osteoarthritis (OA) of the knee. Therapeutic US is regularly used passively by physical therapist clinicians3 to treat knee OA, but its use lacks substantial evidence of positive therapeutic effect in people with knee OA.4-6
I am sorry for your loss .It is common to experience cramping and spotting for few days after the procedure. It should usually slow down over a time. What point of concern here is, bleeding stopped and started again. Follow up ultrasound is very important after D&C to confirm that procedure is completed. There are chances that bit of placenta continue to stick to uterus and drew a little bit fresh blood.
Technique and argument 1 The first technique I will suggest to use is Ultrasound. Because it is one of the safest to use and it does not use any radiation that would affect her from having children in the future. Furthermore, the evidence to support this idea of using an Ultrasound is because it only uses high frequency sound waves to create an image that will then be shown on video screen. Ultrasound also uses a device called transducer that contributes sound waves and grasp the echoes as they bounce off the organs. This echoes will then be improved by a computer into black and white images. This procedure can show masses of tumours growing in the liver, which can be tested for cancer.
Elastography In today’s world, our technology use and advancement is increasing rapidly. Staying up to date on all the latest improvements is essential especially when working in the medical field. Ultrasound has improved greatly over the years and is an important part of many diagnostic findings. One of the newer advancements added to ultrasound to help with findings is elastography.
Radiation is energy passed through waves, space or matter. Thinking about energy being passed through matter is pretty scary especially to pregnant women. It is very common for women to take precautions during pregnancies. The energy from the radiation can cause damage to one's fetus, and can be very harmful
What is Ultrasound? Ultrasound or ultrasonography is a medical imaging technique that uses high frequency sound waves. It is a high pitch frequency that cannot be heard by the human ear. In ultra sound the following happens: High frequency sound pulses (1-5megahertz) are transmitted from the ultrasound machine into your body using a probe. The sound wave will travel into your body until it hits an object such as soft tissue and bone. When the sound wave hits these objects some of the wave will be reflected back to the probe. While some waves may carry on further till they hit another object and then reflected back. The probe picks up these reflected sound waves and relays them to the machine. The distance and time from the probe,
Ultrasound treatment was done according to method by  with some modifications. Ultrasonic probe (JY92-IIN, Ningbo Scientz Biotechnology Co. Ltd, Ningbo, China) was used, with maximum power 1000Watt, frequency 25 kHz and probe diameter of 13mm. Pectin solutions were treated at 60% duty cycles, sonication times was fixed at 20 minutes, sonication power (200 and 400 watts). Effect of acidity on sonication was determined at pH 2, 4 and 6, by adjusting solution pH using acetic acid. Native pectin 0.25g was put in 250ml beaker suspended in 100ml deionized water to achieve low viscosity, it was stirred on a magnetic stirrer for 30 minutes, and sonic treatment was done by immersing sonic probe up to 1cm deep in the solution. After treatment, the suspension was precipitated with equal volume of 95%v/v ethanol to precipitate pectin. The content was centrifuged at 7500xg and filtrate removed. the precipitate was left in fume cupboard to remove ethanol traces then re-dissolved in deionized water and frozen at -45ᴼC and eventually freeze dried for further analysis. Ultrasound intensity was predicted according to the following equation