A-mode vs PalmScan Ultrasonography: Biometric Measurements.

Standard A-mode Ultrasonography vs PalmScan Ultrasonography: Biometric Measurements.

Status

Withdrawn

Phases

Unknown

Study type

Observational

Source

ClinicalTrials.gov

Registry ID

NCT00804869

Enrollment

Registered

2008-12-09

Start date

2008-10-31

Completion date

2008-12-31

Last updated

2024-05-30

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Anterior Chamber Deep (ACD), Axial Length (AL), Lens Thickness (LT)

Brief summary

Ultrasonography has become a critical ancillary test in the clinical practice of ophthalmology. It is commonly used as a standardized method for assessing intraocular biometry. The PalmScan ultrasonography (PsU) is a portable A-scan device that uses the same principles as the standard A-scan. The aim of the study is to compare the reliability of their measurements, in order to use them indistinctively.

Interventions

DEVICEPalmScan A2000 ultrasonography system (Micro Medical Devices, Calabasas, CA)

PalmScan biometric measurements

DEVICEStandard A-mode ultrasound (Eye Cubed™, Ellex, Adelaide, Australia).

A-mode biometric measurements group

Study design

Observational model

COHORT

Time perspective

RETROSPECTIVE

Eligibility

Sex/Gender

ALL

Age

50 Years to 90 Years

Healthy volunteers

Yes

Inclusion criteria

* Patients with indication for a standard A-mode ultrasound

Exclusion criteria

* No superficial anormalities. * Patients with external injuries. * Intraocular silicon oil. * Retinal detachment * Significant ocular pathologies.

Design outcomes

Primary

Measure	Time frame
axial length (AL).	during examination
Anterior Chamber Deep (ACD)	during examination
Lens Thickness (LT)	during examination

Countries

Mexico

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026