MRI Practice Test 2025 – Complete Exam Prep Guide

Question: 1 / 400

What is required to generate thin slices in MRI?

Low band width

Steep slice selection gradient

To generate thin slices in MRI, a steep slice selection gradient is essential. The slice selection gradient is part of the magnetic field gradients applied during the MRI process, and its steepness determines the thickness of the slice being imaged. A steeper gradient creates a more focused and narrow band of resonance within the magnetic field, allowing for thinner slices to be precisely selected for imaging.

This capability is particularly important for various clinical and research applications where high spatial resolution is required. Thin slice imaging can lead to more detailed representations of the anatomy and enhance the detection of small lesions or abnormalities.

In contrast, while lower bandwidth and reduced echo time play roles in image quality and acquisition time, they do not specifically address the slice thickness. Enhanced signal intensity can improve overall image quality but is not directly related to the thickness of the slice.

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Reduced echo time

Enhanced signal intensity

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