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High-frequency-ultrasound Annular Arrays for Ophthalmic Imaging

NCT00633854 · Status: COMPLETED · Type: OBSERVATIONAL · Enrollment: 30

Last updated 2019-03-28

No results posted yet for this study

Summary

The objective of this research is to improve the care of ocular disease and disorders, in particular the changes in the eye associated with diabetes, by providing clinicians with dramatically improved ultrasonic images of the entire eye. The research combines advanced high-frequency, high-resolution ultrasonic annular arrays transducers with new processing techniques designed to overcome several limits that have been reached with conventional high-frequency ultrasound systems. We propose that diagnosis of eye diseases using annular arrays can be more effective than the conventional ultrasound images by at least 50%; i.e., that for every 2 posterior vitreous detachments detected conventionally, 3 will be detected with the annular arrays.

Conditions

  • Posterior Vitreous Detachment

Interventions

PROCEDURE

Ultrasound examination

Immersion Ultrasound Exam: In the immersion technique, the patient lies down on the examination table. A steridrape with a central aperture is used to form a water-tight seal around the eye. After installation of 2 drops of 0.5% proparacaine HCl, a wire lid speculum is used to hold the patient's lids open. Warm 0.9% sterile saline solution is then used to create a waterbath about 1/2 inch deep to provide acoustic coupling between the transducer and the eye. The transducer (either the 10- and 20-MHz sector scan probe or the annular array) is placed in the waterbath, but does not touch the eye.

Sponsors & Collaborators

  • Riverside Research Institute

    collaborator OTHER

  • Weill Medical College of Cornell University

    lead OTHER

Principal Investigators

  • Ronald H Silverman, PhD · Weill Medical College of Cornell University

Eligibility

Min Age
60 Years
Max Age
85 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2008-02-29
Primary Completion
2010-04-30
Completion
2010-04-30

Countries

  • United States

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT00633854 on ClinicalTrials.gov