Expected headings
"Explanation"
"Elevational resolution is governed by beam height in the same way that lateral resolution is governed by beam width; two discrete objects of the same depth returning echoes from a single beamline will falsely appear conjoined on visualisation 2. Beam height itself depends on the height of the individual piezoelectric transducer elements, which is fixed for a given transducer 1. Overall, reduced transducer element height equates to reduced beam height and thus, improved elevational resolution (via reduced requirement for volume averaging during image processing)."