ON TECHNOLOGY & TECHNIQUE

Marco�s RTA 5 Imaging System

The RTA 5 (Retinal Thickness Analyzer) is a versatile early-detection imaging system offering complete diagnosis of diabetic retinopathy, AMD, glaucoma and other retinal pathologies. The RTA 5 is able to assess the disc, macula and peripapillary regions and is a useful tool in all diagnostic phases � early detection, diagnosis and follow-up progression analysis from any field session.

Validity
Clear and straightforward data, provided by two diagnostic pathways � scanning laser ophthalmoscope and high-resolution digital fundus imaging � add to the RTA�s value in clinical settings.
The quick and easy non-mydriatic exam (3+ mm pupil) provides:
- high-density thickness maps automatically overlaid on a digital fundus image
- disc topography maps
- retinal nerve fiber layer (RNFL) cross-section charts
- interactive 3-D imaging and
- deviation probability maps.
Precise registration methodology assures the mapping accuracy necessary for diagnostic validity.
 

Fundus Imaging
The RTA�s integrated charge-coupled device camera captures a fundus image with every scan measurement. The image is captured simultaneously with retinal and/or disc scans, maximizing patient comfort and practice efficiency. A 2-D or 3-D retinal thickness map superimposed on the patient�s fundus image provides benefits important to diabetic retinopathy screening, as well as other retinal pathologies.
Digital images are captured in 0.33 to 0.48 seconds and a high-resolution image is displayed immediately on a large screen, providing an educational tool that can be used during patient consultations. All digital images are automatically saved in TIF format, facilitating electronic archival and EMR communications. The RTA�s automatic registration software makes it possible to combine up to eight individual images, creating a wide 60�x 72� fundus image.
 

Dynamic 3D Anatomy Imager
The Dynamic 3D Anatomy Imager creates a full volume, 3-D, cross-section of a specified area of the retina or disc, automatically overlaid on the patient�s fundus image. This interactive program enables free movement and assessment across all grid lines of the scanned retina, without the need to reposition and retest adjacent locations.
The 3-D images obtained are easy to interpret and measure. Video captures provide patient education and professional presentation material. They can also be sent to colleagues and the physician�s referral base.
Vision Wellness Examination
RTA�s Vision Wellness Examination plays a role in the vision loss prevention initiative by effectively detecting, identifying and monitoring the major back-of-the-eye diseases
in their earliest stages. The test is
non-mydriatic and lasts only 2 to
3 minutes. The exam increases patient comfort and compliance by providing enhanced scheduling flexibility and smooth patient flow.
 

Applications in Glaucoma
The RTA 5 system provides multiple diagnostic assessments for early glaucoma detection and management. Most important is the ability to assess the complete health of the optic nerve head and macula � in every standard RTA test. Fundus images and real slit-sections are always integrated with thickness, topography, RNFL and dynamic 3-D-anatomy imaging modalities.
The full posterior pole is examined with overlapping scanning laser ophthalmoscope scans, for the most broad and complete screening for glaucoma. Additionally, user-defined test patterns allow thorough imaging across the optic nerve head and full peripapillary region. Traditional rim/cup data and temporal-superior-nasal-inferior-temporal mapping is provided in each patient session. OM

For more information on the
RTA 5, please contact Marco at (800) 874-5274 or visit www.marco.com.