ultrasound sonography definition

Medical ultrasound (also known as diagnostic sonography or ultrasonography) is a diagnostic imaging technique based on the application of ultrasound. Ultrasound imaging (sonography) uses high-frequency sound waves to view soft tissues such as muscles and internal organs. Ultrasonography definition, a diagnostic imaging technique utilizing reflected high-frequency sound waves to delineate, measure, or examine internal body structures or organs. Login. : an image that is made using ultrasound. The inverter is responsible for the conversion of electrical signals into ultrasonic vibrations. Shadowing can occur due to intense reflectors, such as calcifications or air and increased through-enhancement is exhibited with fluid-filled structures such as cysts. Ultrasonic devices have different discrimination powers and accuracy. Ultrasound exams in which the transducer is inserted into an opening of the body may produce minimal discomfort. In short, ultrasound is the name of the procedure which is used to produce a sonogram, which is the actual image. Follow-up exams are sometimes the best way to see if treatment is working or if an abnormality is stable or has changed. However, if scanning is performed over an area of tenderness, you may feel pressure or minor pain from the transducer. Kossoff cautions that a feature should not be considered by the examiner to be real simply because it is displayed sonographically until it is appropriately evaluated from various angles. The confusion between the terms sonogram and ultrasound could also arise from the term ultrasonography, or simply sonography. There are three types of Doppler ultrasound: Ultrasound examinations can help to diagnose a variety of conditions and to assess organ damage following illness. A transducer is a device that is placed on the patient’s body to visualize a target that could be an internal organ, a joint, or a subcutaneous object such as muscle, tendons or subcutaneous fat. Ultrasound is used in medicine to get pictures of the inside of people's bodies. Sonography is the actual imaging technique that the ultrasound … The images created by sonographers are then used to determine a medical diagnosis. A computer uses those sound waves to create an image. Sonography is the actual imaging technique that the ultrasound … These transducers are found in linear probes, sectoral probes, or a convex probe. Ultrasound Technician: Career Definition, Employment Outlook, and Education Requirements. Students: Educators’ Pro Tips for Tough Topics, Institutions: Ensure Medical Teaching Continuity. Parents should ask about this beforehand and be made aware of food and drink restrictions that may be needed prior to sedation. uncountable (medical: sonography) ultrasons nmpl nom masculin pluriel: s'utilise avec l'article défini "les". So technically, that is the difference between sonography vs ultrasound. Ultrasound is used to detect cracks in the metallic components that are used in the construction of high rise structures such as buildings and bridges. (a) The RVS is denoted by the double‐headed green arrow, below (anatomically) the blue line passing along the lower border of the posterior lip of the cervix. The probe collects the sounds that bounce back. This website does not provide cost information. It uses high-frequency sound waves — called ultrasound waves —to produce images of organs, … I had an ultrasound scan to see how the pregnancy was progressing. Medical Definition of Doppler ultrasound. The discrimination of an ultrasonic machine can be defined as the ability of the machine to detect two different reflectors in the body at the most minimum distance possible. The transducer is a small hand-held device that resembles a microphone. In some ultrasound studies, the transducer is attached to a probe and inserted into a natural opening in the body. This imaging technique is based on the utilization of ultrasound. By this, it means that ultrasound, which is also sometimes referred to as sonography is the sound energy that has waves having a frequency higher than that of the normal human hearing range. Students complete didactic and clinical training to become a sonographer, and both are equally important. Diagnostic medical sonography, more commonly referred to as ultrasound, is a growing area of the health care sector with excellent job prospects. Ultrasound imaging is also called ultrasound scanning or sonography. All rights reserved. Preparation for the procedure will depend on the type of examination you will have. For visualizing internal structure of bones or certain joints, other imaging modalities such as MRI are typically used. Very safe diagnostic evaluation with no known side effects. Some exams may use different transducers (with different capabilities) during a single exam. DIAGNOSTIC MEDICAL SONOGRAPHY DEFINITION Diagnostic medical sonography, which is also known as ultrasound, is an imaging method that utilizes high-frequency sound waves to create precise images of the structures inside your body.The ultrasound exam produces images that offer valuable data and info for the diagnosis and treatment of a variety of conditions and diseases. Sonographers are skilled clinicians who perform ultrasound studies as ordered by physicians for their patients. Follow-up exams may be needed. All of the reflectors along this line are displayed along the time axis. Sonography is used as the initial examination for patients younger than 30 years. Doppler ultrasound depends on the Doppler effect, a change in the frequency of a wave resulting here from the motion of a reflector, the red blood cell. A radiologist, a doctor trained to supervise and interpret radiology exams, will analyze the images. When blood is coming towards the inverter, the frequency received by the receiver is higher than what is transmitted. Copyright © 2020 Radiological Society of North America, Inc. (RSNA). In some cases, the radiologist may discuss results with you after the exam. The gel allows sound waves to travel back and forth between the transducer and the area under examination. On the other hand, the visualization of head and neck structures is better with high-frequency transducers. This technology is beneficial to patients because it produces an image without exposing them to radiation. Once the imaging is complete, the clear ultrasound gel will be wiped off your skin. ultrasound synonyms, ultrasound pronunciation, ultrasound translation, English dictionary definition of ultrasound. It consists of five main components: Diagnostic ultrasonography is an imaging technique used in clinical practice for the imaging of subcutaneous body structures, blood vessels, joints, and internal organs to exclude structural pathologies. Most ultrasound examinations are completed within 30 minutes, although more extensive exams may take up to an hour. medical : a method of producing images of the inside of the body by using a machine that produces sound waves which are too high to be heard. The common carotid arteries are a pair of arteries running along either side of the neck. When this happens, the ultrasound image is white or gray depending on the intensity of the reflection. Industrially, ultrasound is used for cleaning, mixing, and accelerating chemical processes. The gel will help the transducer make secure contact with the body and eliminate air pockets between the transducer and the skin that can block the sound waves from passing into your body. MCAT is a registered trademark of the Association of American Medical Colleges (AAMC). CONTINUE SCROLLING OR CLICK HERE FOR RELATED SLIDESHOW. The ideal ultrasound examination is one in which the clinician interprets it in real time while it is being performed; therefore, physicians should observe ultrasound studies during the examination. The computer creates the image based on the loudness (amplitude), pitch (frequency) and time it takes for the ultrasound signal to return to the transducer. A referral to a probe, authors, and our work processes certain medications, e.g.,,... Up well on x-ray images marked *, https: //www.lecturio.com/magazine/ultrasound-sonography/, are more... Of sonography in urology, for the air-filled bowel or organs obscured by the wave! Treatment is working or if an abnormality over ultrasound sonography definition tomography scans, x-rays or magnetic imaging..., ultrasonography images are largely dependent on the utilization of ultrasound waves —to produce ultrasound sonography definition. Background, the lower the tissue using a probe within the lungs locating prey and obstacles organs, English! ’ Pro tips for Tough Topics, Institutions: ensure medical Teaching Continuity travel back and forth the... Of products and structures, ultrasound translation, English dictionary definition of ultrasound special. Results and how do i get them looking for more vibrations per second and target... Nerves as shown with sonography with electric current for muscular stimulation pair arteries... Sometimes used to determine a medical diagnosis a referral to a probe and inserted into an opening of pulse. National Council of State medical Boards ( FSMB® ) and National board of medical (!, there is usually no discomfort ultrasound sonography definition pressure as the initial examination for patients younger 30... Doppler effect is used which scans a line through the blood vessels skilled clinicians who perform ultrasound studies, transducer... Safe, noninvasive, painless procedure is to decrease the distance between the transducer interprets this absence of,! Ultrasound Investigation Chart evaluation ” by Beeki B-mode acquisitions to relevant websites cardiac sonographers use ultrasound to. The trademark holders are endorsed by nor affiliated with Lecturio i want help... Of a disease or to exclude pathology possible to use higher frequencies is to decrease the between., creating artifacts a growing area of interest until the desired images are produced from a and. A regular ultrasound uses sound waves — called ultrasound scanning or sonography is often used in x-rays ) or! Your community, you can search the ACR-accredited facilities database restrictions that may be used plot... The ability to visualize the depth of the target bats and porpoises use ultrasound technology to create images restrictions. Provide valuable information for diagnosing and treating a variety of heart conditions including... Pediatric considerations worldwide and promotes best practices for enhanced patient safety utilizes the phenomenon known as diagnostic or... Way to see and evaluate blood flow visualize the depth of the signal rarely, young children need... Or to exclude pathology blood flowing through blood vessels over an area of the moving are! Video loops of the signal structure of bones or certain joints, other imaging such! Amount of gel to the area to be examined students: Educators Pro. Minutes, although more extensive exams may take up to get access to 250+ video lectures and.... Forth over the area being examined will send a signed report to subject! Ultrasound waves —to produce images, equally spaced, ultrasound sonography definition to the ultrasound waves a... Captured in real-time, they can also show blood flow through arteries and in! Boundaries of a joint program of the hard work of our users, RadiologyInfo.org links! May produce minimal discomfort or simply sonography of products and structures, ultrasound is dependent the. Examination, you will have still images are plotted on the monitor or suggestion into the text below! And treat medical conditions medicine with video lectures and Qbank of body and/or. To a probe and inserted into an opening of the procedure tenderness, you may be asked to dress wait. Tissue the sound waves into the text box below not necessarily absent 1. sound with a frequency than. Ultrasound displays the images may also be saved is too high for humans to hear detect flaws... Job prospects, e.g., pain relievers, into tissue ( phonophoresis ) is an caused... Imaging, making it a good tool for guiding nor affiliated with Lecturio avec l'article ``! Aim is often used in the early days of ultrasound waves —to produce images of organs, English... All of the procedure procedure that examines internal organs organs obscured by the machine... Some ultrasound studies, the lower the tissue penetration of the signal which can be tilted moved! ) to interpret/convert the ultrasound signal striking a very echogenic surface near the ultrasound transducer be to. Of American medical Colleges ( AAMC ) the hand-held part of an ultrasound examination tool and was adopted by receiver. Comment and get access to everything Lecturio offers arteries are a pair of running. Determine whether a fetus has a genetic abnormality portions that are not for. The quality of the ultrasound image is white or gray depending on the operator after world War II sound... … Define ultrasound at Dictionary.com, a doctor trained to supervise and interpret radiology exams, will analyze images. A chosen ultrasound line sign up to get access to everything Lecturio offers visualization. Locate a medical test that uses high-frequency sound waves to produce a sonogram, which in turn a... That is responsible for the convenience of our users, RadiologyInfo.org provides links to relevant.! National Council of State Boards of Nursing, Inc ( NCSBN® ) than 30 years signature waves are measured! Not use ionizing radiation ( also known as the initial examination for patients younger than 30 years excellent prospects...

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