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VIDAR SIERRA plus, X-Ray Film Digitizer

VIDAR SIERRA plus

VIDAR SIERRA plus x-ray film digitizer


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SIERRA plus
:: Product Data / Cut Sheet
Compact and Affordable for a Variety of Healthcare Settings

Maintenance Free Design and Lower Cost of Ownership

Unlike other digitizers that require biannual calibration or cleaning, VIDAR digitizers need no maintenance or calibration, saving nearly $2,000 annually. The straight-line film path reduces the need for costly service calls ($500 or more each) due to film jams. Parts replacement, on-site service, shipping, and service costs for factory repairs can reach $4,500 annually for laser digitizers. These substantial cost differences are illustrated by a comparative analysis created by PACS expert Michael Cannavo. An analysis of a three-year total cost of ownership demonstrates that the cost of owning a laser digitizer is significantly more than that of a SIERRA plus.

Flexibility of Siting
At just 21.5 pounds, the SIERRA plus is much lighter than other digitizers that weigh 50-200 pounds. This light weight, combined with its small size, about that of a one-panel light box, makes the wall-mountable SIERRA plus ideal for crowded radiology offices and hospitals, where space often is at a premium. It also means that the SIERRA plus can be deployed in a number of other settings where quick access to high quality electronic images would enhance patient care, such as the emergency department, intensive care unit, and coronary care unit, as well as at teaching hospitals and alternate care settings.

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Clinically Proven Image Quality
The SIERRA plus continues VIDAR’s tradition of exceptional image quality. A Mallinckrodt Institute of Radiology study comparing the SIERRA plus and the Kodak LS75 laser digitizer demonstrated that there is no difference in image quality and radiologists’ preference between radiographs digitized on the two systems. In addition, a ROC (Receiver Operator Characteristic) study conducted at Johns Hopkins University concluded there was no difference in a radiologist’s ability to make a correct diagnosis when reading the original films or the SIERRA plus digitized images on a high-resolution workstation. The SIERRA plus is supported by VIDAR’s excellent customer service. It also delivers unmatched stability, consistency, and ease of use. With no additional burden on their staff, radiologists can be confident that the digitized image is faithful to the hard-copy film, and that their diagnoses are based on accurate, complete information. SIERRA plus, combining unmatched image quality, superior reliability, compact size, and low total cost of ownership — results in the most economical ACR compliant film digitizer on the market.

Nominal
Resolution

Pixels
(14”x17” film)
Spot Size
(um)
DPI Line pairs
Per mm
Digitizing
Speed
1K x 1.25K 1050 x 1275 339 75 1.5 21 Seconds
2K x 2.5K* 2100 x 2550 169 150 3.0 42 Seconds
4K x 5K 4200 x 5100 85 300 5.8 82 Seconds
*ACR Standard for Teleradiology Guidelines [Revision 35 (1998)] recommends 2.5 line pairs/mm minimum

Clinical Optical Density Range
.02 to 3.6
Bit Depth
16-bit mapped to 12-bit (4096) and 8-bit (256) grayscale output
MTBF
>35,000 hours
Film Sizes
Width: 7” to 14” (17.8 cm to 35.6 cm)
Length: 7” to 17” (17.8 cm to 43.2 cm)
Thickness: 0.006” to 0.008 (0.15 mm to 0.51 mm)
Film Feeder Single sheet standard
“Light Box” loading: head-up, normal reading, left justified
Film sizes up to 14” x 17” (35.6 cm x 43.2 cm)
Translation Tables
Linear OD
Geometric Accuracy
Better than 1% or 2 pixels, whichever is greater, in both axes
Hardware Interface
USB 2.0
Software
Conforms to the SCSI-2 specification
SCSI termination and ID selection switches are accessible at base of unit
Power Requirements
Voltage: 100~240 Vac
Frequency: 50~60 Hz
Power: < 48 Watts
Operating Environment
60º to 85º F (15º to 30º C), 20% to 85% relative humidity, non-condensing
Storage Environment
0º to 140º F (-15º to 60º C), 20% to 85% relative humidity, non-condensing
Illuminator
Cold cathode; >35,000 hours expected life
Detector
Solid-state, next-generation High Definition CCD (HD-CCD®)
Dimensions
Footprint: 19” W x 18.5” D (48.26 cm x 46.99 cm)
Overall: 19” W x 18.5 D” x 40” H (48.26 cm x 46.99 cm x 101.6cm)
Shipping: 27” W x 18” L x 27” H (68.6 cm x 45.72 cm x 68.6 cm)
Weight
21.5 lbs. (9.75 kg); shipping weight: 48 lbs. (20.52 kg)
Certifications CE-MDD 93/42/EEC Class 1; CAN/CSA C22.2 No 601.1-M90; Health Canada Class II;
Japan-MHW; SFDA; KFDA; FCC Class A; EN 60601-1-2; IEC 60601-1; IEC 60950;
ISO 9001:2000; ISO 13485:2003

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