3-DIMENSIONAL OPHTHALMIC CONTACT B-SCAN ULTRASONOGRAPHY OF THE POSTERIOR SEGMENT

Purpose: A system to produce three-dimensional computer reconstruction s of ophthalmic contact B-scan ultrasound was developed and investigat ed. Methods: Investigators used ocular phantoms to measure the accurac y and reproducibility of linear, area, and volume measurements. Result s: in vitro calibration tests of linear and area measurements demonstr ate accurate and reproducible findings throughout the imaged space. Ph antom volume tests also show reasonable accuracy and reproducibility. Conclusions: Three-dimensional ultrasonography is effective in measuri ng length, area, and volume in an experimental model. The in vitro acc uracy and reproducibility of measurements warrants further investigati on into the clinical utility of this method in posterior segment tumor s and other posterior segment pathology.