title: Electronic area and perimeter measurement of ultrasonic images.
abstract: An electronic system for measuring area and perimeter directly on cross-sectional ultrasonic images is described. The resulting values are unaffected by the distortions common to display monitors or errors in the display scale factor. The results of accuracy tests are given, including a comparison with measurements by planimeter and map-measurer.
mesh_terms: D014465:Ultrasonics / Q000295:instrumentation; D014463:Ultrasonography