speech recognition: the state of the business vr = voice recognition resources interviewed bill...
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Speech Recognition:The State of the BusinessVR = Voice Recognition
Resources InterviewedBill Grube (Agfa Talk Technology)
Tim Fagert (Dictaphone Powerscribe)
By Rex OsbornSr Manager
Digital Imaging Practice
2©2003 First Consulting Group
Why Transcription is an Issue
Transcription, and our ability to distribute a diagnostic report has been a key to measuring the management success of Radiology
“Turnaround time equals Hospitals perception of how efficient Radiology is.”
3©2003 First Consulting Group
The 7 Steps (Manual)
1. Analysis of the study2. Radiologist dictates study3. Transcriptionist types
dictation4. Radiologists signs report5. Professional billing and
clinical coding occurs6. Diagnostic (dx) report is
printed7. Dx report; fax and mail
Ordering physician Medical records File room copy Radiologist copy
Analysis
Dictation
Transcription
Sign Rpt
$ & Coding
Print Report
FAX & MAIL
4©2003 First Consulting Group
Why Conventional Transcription Needs Help…
Transcription costs are rising Preliminary reports not promptly available
“The driver for VR technology is PACS related, the Images are available immediately, where is the Dx Report?”
Error-prone, Re-dictations Signature Delays
5©2003 First Consulting Group
Key Components For a VR System
Language Model Acoustical Model (engine) Input Device (microphone) Post Processing of recognized text
6©2003 First Consulting Group
Key Features: Language Model
Language models are a set of rule-based statistics that increase the accuracy of speech recognition
A language model anticipates the user’s vocabulary and style of speech
Language models are the key ingredients that enable applications to achieve high accuracy rates
7©2003 First Consulting Group
Language Model Provided by Speech Recognition Vendors
Speech Recognition Application
for Radiology
Speech Engine built with Radiology Language Model
Radiology Vocabulary
Speech Engine built with Radiology Language Model
Radiology Language Model
Radiology Data
8©2003 First Consulting Group
Key Features: Acoustic Model
Acoustical models are created by comparing sounds, or acoustic data
Acoustic data provides most of the information required for human speech to be recognized by software
Acoustical models are typically adapted (refined) after a given period of time
9©2003 First Consulting Group
Key Features: Input Device
Noiseless button technology
USB technology which eliminates sound cards
Primary device for dictation – microphones and headsets
10©2003 First Consulting Group
Key Features: Post Processing
AI for recognized speech Designed to minimize extra
dictation Designed for easy editing and
navigation via key strokes Allows Radiologists to retrain
system to enhance vocabulary recognition
11©2003 First Consulting Group
Who are the Pioneers of VR?
VR Application Vendors Language Model Innovators Speech Engine Designers
12©2003 First Consulting Group
Who Should I Trust?
Technology and Workflow Innovators
A vendor that has an integration strategy and approach
A proven record of successful implementations
13©2003 First Consulting Group
How Can They Ensure Success?
From a Vendor Perspective… Experienced team that has been
successful with the deployment of this technology
Clinical knowledge Joint deployment strategy Test environment for education and
integration validation
14©2003 First Consulting Group
How Can You Ensure Success?
From A Client Perspective… MUST have a Project Champion
(Radiologist) Must have support of Radiologists RIS and PACS Integration must be
outlined to ensure tenable workflow Removal of Legacy Dictation System Do a small group at a time, this way you
can have measurable outcomes
15©2003 First Consulting Group
How Do You Measure success?
ROI Strategy Did we save money? Are we more efficient?
Report turn-around time reductions Is the report getting to the people
ordering the studies? Have phone calls asking for reports
been reduced? Physician productivity
16©2003 First Consulting Group
Road Map Items for VR Vendors
Hardware USB microphones (elimination of sound
card) Portable dictation devices
Software/integrations Desktop integration (Physician
Workstation) Remote capabilities Integration to SR DICOM in Future
17©2003 First Consulting Group
Drawbacks of Technology
Perception of being a transcriptionist rather than a Radiologists because of on-line editing prior to signature
Vendors efforts to place within workflow a place for a full time Correctionist
Easy to break Sound Cards and Microphones Software stability Recognition accuracy will improve but will
require Radiologists’ patience…
18©2003 First Consulting Group
The VR Workflow
Report is dictated and voice recognition creates diagnostic report Radiologist must read
through report and correct (on average 3-8 words)
Sign report (electronically)
Dx report distributed via existing integration with appropriate results outbound transactions
ANALYZE, DICTATE,SIGN
Dx REPORTDistributed Via
RIS - HIS - EMR - CDR
19©2003 First Consulting Group
To MAKE VR Successful:
Set realistic expectations Transcriptionist don’t have to go away
immediately PACS workflow should drive integration with
VR solutions for optimal efficiency Target areas where the greatest impact and
can show acceptance... don’t fight with the Radiologists
“Identify where success is likely, and build momentum”
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