voice recognition & pacs integration
DESCRIPTION
Voice Recognition & PACS Integration. Dr Richard Harries, FRCR, MD Northern Lincolnshire and Goole NHS Trust. Speech recognition?. …met a tart so fell on Gill… (metatarsophalangeal). Why Introduce VR?. Because its fun To save time Shortage of Secretaries To reduce typing errors. - PowerPoint PPT PresentationTRANSCRIPT
Voice Recognition & PACS Voice Recognition & PACS IntegrationIntegration
Dr Richard Harries, FRCR, MDDr Richard Harries, FRCR, MD
Northern Lincolnshire and Goole NHS TrustNorthern Lincolnshire and Goole NHS Trust
Speech recognition?Speech recognition?
……met a tart so fell on Gill…met a tart so fell on Gill…
(metatarsophalangeal)(metatarsophalangeal)
Why Introduce VR?Why Introduce VR?
Because its funBecause its fun To save timeTo save time Shortage of SecretariesShortage of Secretaries To reduce typing errorsTo reduce typing errors
What time savings?What time savings?
Dictate
Audio transcription & correctionAuthorisation
Print & distribute
What time savings?What time savings?
+ .5 secretary per radiologist?+ .5 secretary per radiologist? - .1 radiologist initially?- .1 radiologist initially?
VR - The disadvantages?VR - The disadvantages?
Can’t change report once ‘committed’Can’t change report once ‘committed’ Can’t leave messages for secretaryCan’t leave messages for secretary Radiologist has to ‘correct’ for full benefitRadiologist has to ‘correct’ for full benefit Learning curveLearning curve Adjustment of dictation techniqueAdjustment of dictation technique Large sound files for remote workingLarge sound files for remote working Software ‘crashes’Software ‘crashes’ Integration with imaging systemIntegration with imaging system
VR - The advantagesVR - The advantages
Faster and more reliable work throughputFaster and more reliable work throughput Immediate printed reports (if necessary)Immediate printed reports (if necessary) Reports out-of-hoursReports out-of-hours Complete work before absencesComplete work before absences Secretaries have a learning curveSecretaries have a learning curve Secretaries occasionally ‘crash’Secretaries occasionally ‘crash’
VR - How accurate?VR - How accurate?
The words VR finds difficultThe words VR finds difficult– numbersnumbers– thethe– ss– mesentericmesenteric– ScoliosisScoliosis
Accuracy - >99% after trainingAccuracy - >99% after training
This report includes all attendances from 9/5/03227/5/03.
Chests (attendance numbers 1255679 and 1 to 3 for right 67)On examination 2, there is patchy increased density in both lower zones but I suspect that this is old. There is no obvious recent abnormality.On examination 3, there is an endotracheal tube in situ (its tip is 3 cm above the carina). There is also a right jugular line. There is calcification overlying both hemidiaphragms and in the rightThe [right paravertebral] region (this was also present on the previous film).On examination 5, the endotracheal tube and jugular line has been removed. The lung fields remain unchanged.
The pelvis and hipsThere is an intertrochanteric fracture of the right femur, subsequently internally fixed with a DHS in satisfactory position.
VR - the two methodsVR - the two methods
On-line transcriptionOn-line transcription– Distracting?Distracting?– Quicker overall?Quicker overall?– Corrections?Corrections?
Off-line transcriptionOff-line transcription
VR - the ProcessVR - the Process
Dictate VR Transcription
Correction
Sound Database
Sound files
Acoustic adaptation
Context adaptation
VR - The hardwareVR - The hardware
Office PC
RIS Server
VR Server
VR - Model 1VR - Model 1
Dictate
VR
transcription
Correction & authorisation
Print & distribute
VR - Model 2VR - Model 2
Dictate
VR
transcription
Authorisation
Print & distribute
Correction
Should secretaries check Should secretaries check reports?reports?
Reduces potential time savingsReduces potential time savings Reduces short-term work for radiologistReduces short-term work for radiologist Slows ‘learning’ process for VRSlows ‘learning’ process for VR
Maintenance tasks?Maintenance tasks?
Acoustical AdaptationAcoustical Adaptation Context AdaptationContext Adaptation Installation of new usersInstallation of new users
Acoustical AdaptationAcoustical Adaptation
Matches waveforms to known wordsMatches waveforms to known words ~15mins/day/radiologist~15mins/day/radiologist
Context AdaptationContext Adaptation
Database of probabilities of word Database of probabilities of word juxtapositionsjuxtapositions
Rapid fillingRapid – filling – 80%Rabbit – filling – 0%Rapid – feeling – 5%Rabbit – feeling – 0%
Context AdaptationContext Adaptation
?1287883
√2399540
√ 2547762
? 1299048
? 3288473
√ 1129489
Context AdaptationContext Adaptation
.?1289344,2390045IntegratianWatermarkRabbitIschemia
Who does the maintenance?Who does the maintenance?
Secretary – won’t know individual Secretary – won’t know individual radiologists’ speech nuancesradiologists’ speech nuances
Office manager - dittoOffice manager - ditto Radiologist – takes more time initially but Radiologist – takes more time initially but
improves accuracy more rapidlyimproves accuracy more rapidly
Integrating VR with PACSIntegrating VR with PACS
VR-RIS integrationVR-RIS integration PACS-RIS ‘Desktop integration’PACS-RIS ‘Desktop integration’ Minimises processesMinimises processes Ensures correct patient & reportEnsures correct patient & report
VR-RIS-PACS IntegrationVR-RIS-PACS Integration
PACS RISVR
VR - Integration with RISVR - Integration with RIS
Initial experiencesInitial experiences– Slow and tediousSlow and tedious– Word crashesWord crashes
And then…And then…– Full Integration - SlickFull Integration - Slick
In context……..In context……..
What VR packages are What VR packages are available?available?
Philips SpeechMagicPhilips SpeechMagic DictaphoneDictaphone DragonDragon
How popular is VR?How popular is VR?
8 SpeechMagic installations8 SpeechMagic installations
How much does it cost?How much does it cost?
VR Server - ~2kVR Server - ~2k License - ~3kLicense - ~3k Speech Mike - ~£300Speech Mike - ~£300
Who should use VR?Who should use VR?
Nobody.Nobody. Departments ‘short’ of secretariesDepartments ‘short’ of secretaries EnthusiastsEnthusiasts At least one technophile per departmentAt least one technophile per department
Speech Recognition - SummarySpeech Recognition - Summary
Can improve reporting efficiency Can improve reporting efficiency significantlysignificantly
Can save significant amounts of secretarial Can save significant amounts of secretarial timetime
Can be cost effectiveCan be cost effective Requires enthusiasm and committmentRequires enthusiasm and committment