Doppler Ultrasound
Über den Vortrag
Der Vortrag „Doppler Ultrasound“ von Hetal Verma, MD ist Bestandteil des Kurses „Alternative Hemodynamic Monitoring, Functional Hemodynamic Monitoring, Basic Ultrasound, Pericardio-centesis (NKU / Week 3)“.
Quiz zum Vortrag
The Doppler effect can be defined as…?
- …the change in sound frequency based on whether the object creating the sound is approaching or retreating from the object capturing the sound.
- …the change in sound direction based on whether the object capturing the sound is approaching or retreating from the object creating the sound.
- …an abnormally high brightness occurring when sound travels through a medium with an attenuation rate lower than surrounding tissue.
- …it is the attenuation of sound energy as it passes through tissue because parts of it are reflected, scattered, absorbed, refracted or diffracted.
- …the change in sound wave direction on being incident upon a tissue interface at an oblique angle.
A 24 year-old-woman at 16 weeks gestation enters the emergency room complaining of severe pain in the abdomen of sudden onset. She says that the pain started an hour after having lunch and is accompanied by nausea and one episode of vomiting. The patient’s vitals are stable with a temperature of 38° C. The physician suspects a gall bladder pathology and orders an ultrasound imaging of the abdomen as a part of diagnostic evaluation due to its safety. Which factor makes ultrasound the most optimal option for pregnant women?
- No side effects
- Expensive
- Lasts more than an hour
- Risk of radiation
- Small in size
Which statement regarding imaging techniques is true?
- Radiography and CT both use ionizing radiation.
- CT is less expensive than an x-ray or ultrasound.
- Radiography has more radiation than CT.
- Ultrasound and x-ray machines cannot be transported.
- CT scan machine uses acoustic energy for imaging.
Dozent des Vortrages Doppler Ultrasound
Hetal Verma, MD
Dr. Hetal Verma is a Clinical Instructor of Radiology and the Co-Director of the Radiology Cambridge Integrated Clerkship at Harvard Medical School, MA, USA.
She is a graduate of the University of Massachusetts Medical School and completed her Breast Imaging fellowship at the Massachusetts General Hospital. Since 2012, she is the Director of Breast Imaging at Cambridge Health Alliance Radiology, a teaching affiliate of Harvard Medical School.
She is passionate about women's health and has vast experience in teaching medical students and residents at Harvard Medical School.
Within Lecturio, Dr. Verma teaches courses on Radiology.
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Very clear and easy to follow lectures. Elucidates the slides and demonstrates with the pointer.
