Doppler Ultrasound The doppler shift principle has been used for a long time in fetal heart rate detectors. Further developments in doppler ultrasound technology in recent years have enabled a great expansion in its application in Obstetrics, particularly in the area of assessing and monitoring the well-being of the fetus, its progression in the face of intrauterine growth restriction, and the diagnosis of cardiac malformations. Doppler ultrasound is presently most widely employed in the detection of fetal cardiac pulsations and pulsations in the various fetal blood vessels. The "Doptone" fetal pulse detector is a commonly used handheld device to detect fetal heartbeat using the same doppler principle. Blood flow characteristics in the fetal blood vessels can be assessed with Doppler 'flow velocity waveforms'. Diminished flow, particularly in the diastolic phase of a pulse cycle is associated with compromise in the fetus.
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Need More Info? The Issue Health Canada is recommending parents not expose their unborn babies to fetal ultrasound for the purpose of making "keepsake" videos. Background Fetal ultrasound creates images of the unborn baby in the womb. The procedure uses very short bursts of sound vibrations that travel as waves through the body in a series of focused beams.
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Programs What to expect from a career in Imaging, Ultrasound and Radiation Technology Ultrasound and x-ray professionals play an important role in the medical industry, assisting in the diagnosis and treatment of injuries and diseases by producing and interpreting diagnostic images. Ontario college ultrasound and x-ray programs offer training in a wide range of imaging focus areas to prepare students for careers as sonographers or radiation technologists or to build on their current imaging training. Ultrasound and X-Ray Courses Ultrasound and x-ray programs have distinct streams of study, with most programs specializing in only one focus area. Below is a description of what you can expect from each discipline: Ultrasound and Sonography. Ultrasound programs explore the use of high-frequency sound waves to create images, which are used to monitor pregnancies and uncover abnormalities within the body.
In ClinicalTrials. Interventions Interventions refer to the drug, vaccine, procedure, device, or other potential treatment being studied. Interventions can also include less intrusive possibilities such as surveys, education, and interviews. Study Phase Most clinical trials are designated as phase 1, 2, 3, or 4, based on the type of questions that study is seeking to answer: In Phase 1 Phase I clinical trials, researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects. In Phase 2 Phase II clinical trials, the study drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.