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A sonographer performing pediatric echocardiography. A sonographer is an allied healthcare professional who specializes in the use of ultrasonic imaging devices to produce diagnostic images, scans, videos or three-dimensional volumes of anatomy and diagnostic data. The requirements for clinical practice vary greatly by country.
Medical ultrasound includes diagnostic techniques (mainly imaging techniques) using ultrasound, as well as therapeutic applications of ultrasound. In diagnosis, it is used to create an image of internal body structures such as tendons, muscles, joints, blood vessels, and internal organs, to measure some characteristics (e.g., distances and velocities) or to generate an informative audible sound.
Diagnostic medical sonography (DMS), a branch of diagnostic medical imaging, is the use of imaging by medical ultrasound for medical diagnosis. DMS uses non-ionizing ultrasound to produce 2D and 3D images of the body. In Canada, the credentialing for diagnostic medical sonography is the Canadian Association of Registered Ultrasound Professionals.
The first article on the history of ultrasound was written in 1948. [3] According to its author, during the First World War, a Russian engineer named Chilowski submitted an idea for submarine detection to the French Government. The latter invited Paul Langevin, then Director of the School of Physics and Chemistry in Paris, to evaluate it.
Phonocentrism is the belief that sounds and speech are inherently superior to, or more primary than, written language or sign language.Those who espouse phonocentric views maintain that spoken language is the primary and most fundamental method of communication whereas writing is merely a derived method of capturing speech.
Donald Eugene Strandness (September 22, 1928 – January 7, 2002) was an American physician, university professor, and research scientist.Dr. Strandness, known as Gene, was influential in the development of Doppler ultrasound as a diagnostic tool in vascular medicine, and did research that established much of the clinical grading criteria in the field of vascular ultrasound.
From ancient history to the modern day, the clitoris has been discredited, dismissed and deleted -- and women's pleasure has often been left out of the conversation entirely. Now, an underground art movement led by artist Sophia Wallace is emerging across the globe to challenge the lies, question the myths and rewrite the rules around sex and the female body.
This article cites its sources but its page reference ranges are too broad or incorrect. Please help in adding a more precise page range. (July 2024) (Learn how and when to remove this message) Survey of eight prominent scripts (left to right, top to bottom): Sumerian cuneiform, Egyptian hieroglyphs, Chinese characters, Maya script, Devanagari, Latin alphabet, Arabic alphabet, Braille Part of ...