Three dimensional (3-D) medical diagnostic imaging appears to be one of the major technical advancements of this decade. It is being pursued vigorously by the industry and is technologically feasible. However, cost versus performance issues are currently extremely sensitive, and are holding back commercialization of a number of 3-D technical concepts. The technical approach detailed in this (Guided Therapy Systems Inc.) report will allow commercialization of a thoroughly needed 2-D acquisition system (2-D probes and controller modules), which are uniformly recognized as a critical part of a 3-D ultrasound imaging system. Any commercially viable system has an architecture driven primarily by cost and performance issues. 2-D phased and linear arrays would certainly meet the performance requirements, should the major technological obstacles be surmounted. A large number of research papers are devoted to resolve such issues, however the cost and considerations for such arrays, with thousands of elements to interconnect and drive, have not been resolved to date. This research shows the feasibility of achieving a balance between cost and performance for 2-D probes, by utilizing electronic arrays and integrated control modules, with a mechanically driven compact 2-D imaging probe.