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Computed Radiography

Digital RadiographyLeeAnn Pack DVM

Diplomate ACVR

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Computed Radiography (CR)

Been around since 1980-81

Uses same radiographic equipment

No change in X-ray machine

Uses an imaging plate

Contains a photostimulator phosphor

Need a cassette reader

Images can be sent to a PACS

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CT System

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CR cons

Still need imaging plates

Cost of plates is expensive

Same amount of time to produce theimage as with film

Processing time

Increased exposure when compared tofilm and DR

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DR

Works like a digital camera Images are seen immediately

Two options CCD

Digital flat plate detector

Can be sent to PACS Small decrease in tech time/time to

development when compared to CR

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DR No film costs

No darkroom space

No processor to maintain

No films to search for or file

No expense for film jackets

Increased productivity

Decreased retakes

Decreased exposure (Eklin)

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Digital Flat Plate Detectors

Expensive ($80,000-120,000)

Can retrofit into existing X-ray machines

Eklin Exposure is decreased thus improving

radiation safety Do not use grid but use image software

IDEXX

Sound Technologies

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DR Portable System - EKLIN

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DRPortable with Carrier

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DR Portable System - IDEXX

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CCD

Is sold with an X-ray machine

Camera is placed in machine before

installfits underneath the table

Less expensive than the Flat PlateDetector

Cause increase in exposure by 2 times

Double the mAs

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Potential Cost Savings Film

Space Wont need the darkroom space

Processor Maintenance

Less technician time Decreased repeats and no developing

Time lost looking for films

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Images

Ability to window exposures

Works like CT

Wider latitude for exposures Less retakes

Better soft tissue

Image consistency

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PACS

Pictureviewing at workstations

Archivingimages short/long term

Communicationlocal or wide areanetworks

Systemuse with HIS, other equip. ect.

Method that allows storing, retrieving,distributing throughout your hospital orthe internet

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PACS

Once an image is madeit is sent tothe local PACSa copy is also sent

somewhere else (in house server, offsite server)

Then the image can be pulled up and

viewed Multiple sites throughout the hospital

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EKLIN

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DICOM

Digital Imaging and Communications inMedicine

Imaging standard that allows multiplepieces of medical equipment tocommunicate

Essentially all PACS and almost allequipment speak DICOM now

DICOM does not effect image quality

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Computer Monitors

Bigger really is better

Small monitor can not see entire image

Some choose grey scale monitors More expensive (3MP)

Some choose the Dell monitor

Less costly (2MP)

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Dell 2407 HC

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Image Back Up

Must have a way to back up copies ofimages in case your computer crashes

Time to keep images varies byprovince/state

3 options

On site server Off site server

Fingers crossed storage

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Teleradiology

Can send your images to a radiologistfor interpretation

Should be of diagnostic quality

Buy machine they add in contract withradiologists

Be careful

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Hospital Integration

Can integrate the images you take intothe patients hospital record

If hospital is automated

Referral veterinarians can view imagesyou have made and also receive reports

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Images used in this presentation from

www.eklin.com

www.idexx.com www.dell.com