Ultrasound Imaging Process

What type of energy does MRI use to generate images?

Radiofrequency energy

How do CT scans differ from MRI scans in terms of ionizing radiation?

CT scans use ionizing radiation while MRI scans do not.

What allows ultrasound to see the movement of fluids within tubular structures?

Doppler technique

What is the purpose of nuclear medicine in diagnostic imaging?

To insert radioactive nuclide and collect gamma rays for imaging Signup and view all the answers

What is a key advantage of MRI over X-ray in terms of soft tissue imaging?

MRI provides better soft tissue imaging compared to X-ray. Signup and view all the answers

How does ultrasound differentiate between structures like bile ducts and hepatic veins?

By using the Doppler technique Signup and view all the answers

What is the diagnostic imaging procedure that uses a narrow beam of x-rays rotated around the body to generate cross-sectional images?

Computed Tomography (CT) scan Signup and view all the answers

In medical ultrasound, what is used to measure the velocity of blood in blood vessels?

Doppler effect Signup and view all the answers

What type of imaging uses small amounts of radioactive material to diagnose, evaluate, or treat various diseases?

Nuclear medicine imaging Signup and view all the answers

Which diagnostic modality allows for dynamic assessment of anatomy and function by emitting x-ray beams continually to produce real-time images on a screen?

Fluoroscopy Signup and view all the answers

What imaging technique uses the computerized processing of signals from rotating x-ray beams to generate cross-sectional images or 'slices' of the body?

Magnetic Resonance Imaging (MRI) Signup and view all the answers

Which imaging procedure involves manipulating cross-sectional images of the body using computer algorithms to produce views in the sagittal and coronal planes?

CT scan Signup and view all the answers

What are some advantages of Magnetic Resonance Imaging (MRI)?

Best soft tissue imaging, no ionization, images can be obtained in any plane Signup and view all the answers

Why is Computed Tomography (CT) not taken in any plane unlike MRI?

CT is taken in axial position Signup and view all the answers

What are some disadvantages of Magnetic Resonance Imaging (MRI)?

Expensive, time-consuming, may evoke phobias like claustrophobia, no metals allowed, sensitive to patient movement Signup and view all the answers

What is an ultrasound and how are ultrasound images (sonograms) created?

Ultrasound is sound waves with frequencies higher than audible to humans. Sonograms are made by sending pulses of ultrasound into tissue using a probe, recording the sound echoes. Signup and view all the answers

What is a Doppler ultrasound used for?

To estimate blood flow through blood vessels Signup and view all the answers

Explain the significance of white areas in ultrasound images.

White areas show echogenic structures that transmit and reflect sound waves, such as fat, vessels, nodes, and soft tissue Signup and view all the answers