3D ultrasound addresses which limitation by enabling visibility of which plane?

• A. A higher frame rate
• B. Smaller transducers
• C. Coronal plane visibility
• D. Improved spatial resolution

Answer: (C)

The main idea is that 3D ultrasound provides a volume of data that can be reformatted into any viewing plane, not just the one currently captured. In standard 2D ultrasound, you typically see slices in specific orientations (like axial or sagittal), and you have to mentally piece them together to understand anatomy in other planes. A 3D (or volumetric) dataset lets you reconstruct and visualize the coronal plane directly, which runs front-to-back and is often hard to view cleanly with single 2D slices. This capability removes the limitation of being restricted to a couple of fixed planes and gives a clear view of structures in the coronal orientation, improving spatial understanding and assessment. The other options aren’t the main advantage of 3D in this context: frame rate can be lower with volume imaging, transducer size isn’t the core issue, and while spatial resolution can improve in some respects, the standout benefit here is coronal-plane visibility.