DHMC Cardiology Update 2004

matchmoaningΤεχνίτη Νοημοσύνη και Ρομποτική

17 Νοε 2013 (πριν από 3 χρόνια και 8 μήνες)

82 εμφανίσεις

DHMC Cardiology Update 2004

Speech Recognition in Medical Practice

December 6, 2004

Jon W. Wahrenberger, MD

Medical Documentation

Old Paradigm: hand
-
written documentation



Jury blames doctor's bad penmanship for patient death

Award = $475,000

Medical Documentation

More Contemporary Paradigm: Typewritten Record

Medical Documentation

More Contemporary Paradigm: Typewritten Record

Cost of transcription? $30,000 per practitioner?

Medical Documentation

Today’s Paradigm

Electronic Medical Record

DHMC Cardiology Clinic

Physician Underutilization?

Questions:


Has the
quality

of physician typed notes and
discharge summaries improved or worsened?


Is typing cutting into our time with patients?


Are we seeing more repetitive motion
injuries?


Has physician generation of notes increased or
decreased productivity??

Alternatives to following the crowd?

Speech Recognition Technology…

… has arrived!

Speech Recognition Technology


Alternative method of keyboard input


Text Creation


Computer control and navigation


Reduction of multiple repetitive tasks into single
speech command



Net result: simplifies and reduces time when using
computer


How does it work?


Statistical technology involving interface of:


An acoustic model


the sound related variables of
a given pronunciation


A lexicon


a group of words and their
pronunciations


A language model


which specifies the relative
likelihood of a sequence of words

Demonstration

Available Products

Dragon

NaturallySpeaking

Microsoft Speech


Best Product


Windows OS only


Windows & Mac
Versions


Incorporated into Office


Poor user interface

IBM ViaVoice

System Requirements


Intel® Pentium® III / 500 MHz processor (or
equivalent AMD® processor)


256 MB RAM


500 MB free hard disk space


Creative® Sound Blaster® 16 or equivalent sound
card supporting 16
-
bit recording or
USB Pod


High quality microphone

Cost of Dragon NaturallySpeaking

Scansoft

Best Internet
Price

Medical
Solutions*

$1095

$845

Professional

795

620

Preferred**

199

155

Standard**

99

91

*Includes extensive general and specialty
vocabularies

**Not Recommended for Professional Use

Advantages


Increased productivity


Economy: no transcription cost


Speed:


Good typist averages 50
-
90 words per min.


Speech dictation: 100
-
180 wpm


Reduction in repetitive motion injuries


Mobility

Speech Recognition: Caveats


It is highly accurate and reliable


Dramatically easier than typing


Voice recognition software is not for everyone


Not as easy as transcription into a telephone or
Dictaphone


Highly cost effective when compared to
transcription (total cost of software and good
microphone is less than $1000)


Microphone Options

Philips
SpeechMike Pro

Sennheiser ME 3

Andrea ANC
-
600

VXI & Andrea
USB Pods

Studies of Speech Recognition Software
in Medical Settings?

Voice Recognition in Medical Settings

47 Emergency Room
Charts

Advanced User

27 Charts

Basic User

20 Charts

Voice Rec
Dictation

27

Telephone
Dictation

27

Voice Rec
Dictation

20

Telephone
Dictation

20

Am J Emerg Med. 2001;19:295
-
298

Speech Recognition Vs. Transcription

Am J Emerg Med. 2001;19:295
-
298

Speech
Recogntion
Traditional
0
20
40
60
80
100
Accuracy (%)
98.5

99.7

Speech
Recogntion
Traditional
0
2
4
6
8
10
Dictation & Correction
Time (min)
3.65

3.77

Speech Recognition Vs. Transcription

Am J Emerg Med. 2001;19:295
-
298

Speech
Recogntion
Traditional
0
10
20
30
40
50
Time to Completed
Record (min)
3.65

39.6

Where Next?

www.dartmouth.edu/

~cardio/voice.htm