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Voice%20Recognition%20

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Voice Recognition & PACS Integration. Dr Richard Harries, FRCR, MD ... At least one technophile per department. Speech Recognition - Summary ... – PowerPoint PPT presentation

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Title: Voice%20Recognition%20


1
Voice Recognition PACS Integration
  • Dr Richard Harries, FRCR, MD
  • Northern Lincolnshire and Goole NHS Trust

2
Speech recognition?
  • met a tart so fell on Gill
  • (metatarsophalangeal)

3
Why Introduce VR?
  • Because its fun
  • To save time
  • Shortage of Secretaries
  • To reduce typing errors

4
What time savings?
Dictate
Audio transcription correction
Authorisation
Print distribute
5
What time savings?
  • .5 secretary per radiologist?
  • - .1 radiologist initially?

6
VR - The disadvantages?
  • Cant change report once committed
  • Cant leave messages for secretary
  • Radiologist has to correct for full benefit
  • Learning curve
  • Adjustment of dictation technique
  • Large sound files for remote working
  • Software crashes
  • Integration with imaging system

7
VR - The advantages
  • Faster and more reliable work throughput
  • Immediate printed reports (if necessary)
  • Reports out-of-hours
  • Complete work before absences
  • Secretaries have a learning curve
  • Secretaries occasionally crash

8
VR - How accurate?
  • The words VR finds difficult
  • numbers
  • the
  • s
  • mesenteric
  • Scoliosis
  • Accuracy - gt99 after training

9
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 right The 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 hips There is an intertrochanteric
fracture of the right femur, subsequently
internally fixed with a DHS in satisfactory
position.
10
VR - the two methods
  • On-line transcription
  • Distracting?
  • Quicker overall?
  • Corrections?
  • Off-line transcription

11
VR - the Process
Sound Database
Dictate
VR Transcription
Correction
Sound files
Acoustic adaptation
Context adaptation
12
VR - The hardware
Office PC
VR Server
RIS Server
13
VR - Model 1
VR transcription
Dictate
Correction authorisation
Print distribute
14
VR - Model 2
VR transcription
Dictate
Correction
Authorisation
Print distribute
15
Should secretaries check reports?
  • Reduces potential time savings
  • Reduces short-term work for radiologist
  • Slows learning process for VR

16
Maintenance tasks?
  • Acoustical Adaptation
  • Context Adaptation
  • Installation of new users

17
Acoustical Adaptation
  • Matches waveforms to known words
  • 15mins/day/radiologist

18
Context Adaptation
  • Database of probabilities of word juxtapositions

Rapid filling 80 Rabbit filling 0 Rapid
feeling 5 Rabbit feeling 0
Rapid filling
19
Context Adaptation
?1287883 v2399540 v 2547762 ? 1299048 ? 3288473 v
1129489
20
Context Adaptation
. ? 1289344,2390045 Integratian Watermark Rabbit I
schemia
21
Who does the maintenance?
  • Secretary wont know individual radiologists
    speech nuances
  • Office manager - ditto
  • Radiologist takes more time initially but
    improves accuracy more rapidly

22
Integrating VR with PACS
  • VR-RIS integration
  • PACS-RIS Desktop integration
  • Minimises processes
  • Ensures correct patient report

23
VR-RIS-PACS Integration
PACS
RIS
VR
24
VR - Integration with RIS
  • Initial experiences
  • Slow and tedious
  • Word crashes
  • And then
  • Full Integration - Slick

25
  • In context..

26
What VR packages are available?
  • Philips SpeechMagic
  • Dictaphone
  • Dragon

27
How popular is VR?
  • 8 SpeechMagic installations

28
How much does it cost?
  • VR Server - 2k
  • License - 3k
  • Speech Mike - 300

29
Who should use VR?
  • Nobody.
  • Departments short of secretaries
  • Enthusiasts
  • At least one technophile per department

30
Speech Recognition - Summary
  • Can improve reporting efficiency significantly
  • Can save significant amounts of secretarial time
  • Can be cost effective
  • Requires enthusiasm and committment
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