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Magnetic Resonance Angiography and Venography

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Questions and Answers

What is the primary purpose of MRA in medical imaging?

To visualize veins
To visualize arteries (correct)
To visualize the heart
To visualize oxygen-depleted blood vessels

What is the common indication of MRA in evaluating the carotid arteries?

At the thoracic bifurcation
At the femoral bifurcation
At the abdominal bifurcation
At the bifurcation (correct)

What type of coil is used for brain imaging in MRA?

Anterior neck coil
Quadrature or phased array head coil (correct)
Spinal coil
Torso coil

What is the purpose of straps and foam pads in MRA patient positioning?

To immobilize the patient as much as possible (C) Signup and view all the answers

What is the typical TR value in Time-of-Flight (TOF) MRA sequence?

Short (A) Signup and view all the answers

What is the primary difference between MRA and MRV?

The vessels visualized (A) Signup and view all the answers

What is the main difference between the function of arteries and veins?

Arteries carry oxygen-rich blood, while veins carry oxygen-depleted blood (C) Signup and view all the answers

What is the purpose of the inter-pupillary line in patient positioning for MRA?

To ensure the patient's head is parallel to the examination couch (A) Signup and view all the answers

What is the primary function of the sagittal sinus in the Circle of Willis?

To drain oxygen-depleted blood from the brain (A) Signup and view all the answers

What is the typical slice thickness in Time-of-Flight (TOF) MRA sequences?

1-2 mm (D) Signup and view all the answers

What is the main indication for MRA in evaluating intracranial vascular assessments?

All of the above (D) Signup and view all the answers

What is the purpose of the anterior neck coil in MRA?

To image the neck (D) Signup and view all the answers

What is the primary function of immobilization foam pads and straps in MRA?

To immobilize the patient's head and neck (A) Signup and view all the answers

What is the main purpose of earplugs/headphones in MRA patient positioning?

To reduce noise during the examination (C) Signup and view all the answers

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