Final answer:
Ultrasonography and MRI are essential medical imaging tools that provide detailed images of the body, with ultrasonography being particularly useful for its non-invasiveness and widespread applications.
Explanation:
Ultrasonography is an imaging technique that uses high-frequency sound waves to generate real-time images of anatomy and physiology. It is the least invasive imaging technique and is commonly used in situations like pregnancy to study various conditions.
Doppler effect is utilized in ultrasound to determine the speed and direction of blood flow. By analyzing Doppler-shifted ultrasonic images, healthcare professionals can assess conditions like arterial occlusion and blood flow velocity.
Magnetic Resonance Imaging (MRI) is another valuable imaging tool that provides detailed two- and three-dimensional images of the body without the use of x-rays, based on the nuclear magnetic resonance effect on certain atoms.
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