What are two other names for convex arrays?

• A. Convex array and Biconvex array
• B. Curvilinear array and Curved linear array
• C. Linear array and Phased array
• D. Circular array and Ring array

Answer: (B)

Convex arrays are ultrasound transducer layouts where the active elements sit along a curved arc, creating a curved footprint and a wider field of view compared with flat, linear arrays. The two other names for this same geometry are curvilinear array and curved linear array. Curvilinear emphasizes the curved path of the elements, while curved linear describes a linear arrangement that has been curved into that arc. Both terms point to the same curved footprint and beam pattern. Other terms like linear, circular, or ring refer to different shapes, and phasing or phased arrays describe beam steering methods rather than the basic curved geometry.