Three-dimensional ophthalmic contact B-scan ultrasonography of the posterior segment.
OBJECTIVE
A system to produce three-dimensional computer reconstructions of ophthalmic contact B-scan ultrasound was developed and investigated.


METHODS
Investigators used ocular phantoms to measure the accuracy and reproducibility of linear, area, and volume measurements.


RESULTS
In vitro calibration tests of linear and area measurements demonstrate accurate and reproducible findings throughout the imaged space. Phantom volume tests also show reasonable accuracy and reproducibility.


CONCLUSIONS
Three-dimensional ultrasonography is effective in measuring length, area, and volume in an experimental model. The in vitro accuracy and reproducibility of measurements warrants further investigation into the clinical utility of this method in posterior segment tumors and other posterior segment pathology.
Fisher
Y
Y
Manhattan Eye, Ear, and Throat Hospital, New York City, NY 10021, USA.
Hanutsaha
P
P
Tong
S
S
Fenster
A
A
Mazarin
G
G
Mandava
N
N
D004867:Equipment Design; D005123:Eye / Q000000981:diagnostic imaging*; D006801:Humans; D007091:Image Processing, Computer-Assisted; D008953:Models, Anatomic; D019047:Phantoms, Imaging; D015203:Reproducibility of Results; D014463:Ultrasonography / Q000295:instrumentation*