sound recording and visualization - stethographics · normal 1st and 2nd heart sounds 1. tap on the...
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![Page 1: Sound Recording and Visualization - Stethographics · Normal 1st and 2nd heart sounds 1. Tap on the waveform 2. Tap on the zoom button to expand the signal horizontally 3. Tap again](https://reader034.vdocuments.site/reader034/viewer/2022042913/5f4a5cb741d8ed56b24561d2/html5/thumbnails/1.jpg)
Sound Recording and Visualization
![Page 2: Sound Recording and Visualization - Stethographics · Normal 1st and 2nd heart sounds 1. Tap on the waveform 2. Tap on the zoom button to expand the signal horizontally 3. Tap again](https://reader034.vdocuments.site/reader034/viewer/2022042913/5f4a5cb741d8ed56b24561d2/html5/thumbnails/2.jpg)
Insert stethoscope audio output into PDA audio input
![Page 3: Sound Recording and Visualization - Stethographics · Normal 1st and 2nd heart sounds 1. Tap on the waveform 2. Tap on the zoom button to expand the signal horizontally 3. Tap again](https://reader034.vdocuments.site/reader034/viewer/2022042913/5f4a5cb741d8ed56b24561d2/html5/thumbnails/3.jpg)
Press the Start button to start the Handheld STG software
![Page 4: Sound Recording and Visualization - Stethographics · Normal 1st and 2nd heart sounds 1. Tap on the waveform 2. Tap on the zoom button to expand the signal horizontally 3. Tap again](https://reader034.vdocuments.site/reader034/viewer/2022042913/5f4a5cb741d8ed56b24561d2/html5/thumbnails/4.jpg)
![Page 5: Sound Recording and Visualization - Stethographics · Normal 1st and 2nd heart sounds 1. Tap on the waveform 2. Tap on the zoom button to expand the signal horizontally 3. Tap again](https://reader034.vdocuments.site/reader034/viewer/2022042913/5f4a5cb741d8ed56b24561d2/html5/thumbnails/5.jpg)
Press the left side of the Navigation Button to start recording
![Page 6: Sound Recording and Visualization - Stethographics · Normal 1st and 2nd heart sounds 1. Tap on the waveform 2. Tap on the zoom button to expand the signal horizontally 3. Tap again](https://reader034.vdocuments.site/reader034/viewer/2022042913/5f4a5cb741d8ed56b24561d2/html5/thumbnails/6.jpg)
Type in patients’ First and Last name
![Page 7: Sound Recording and Visualization - Stethographics · Normal 1st and 2nd heart sounds 1. Tap on the waveform 2. Tap on the zoom button to expand the signal horizontally 3. Tap again](https://reader034.vdocuments.site/reader034/viewer/2022042913/5f4a5cb741d8ed56b24561d2/html5/thumbnails/7.jpg)
Indicate chest piece position
![Page 8: Sound Recording and Visualization - Stethographics · Normal 1st and 2nd heart sounds 1. Tap on the waveform 2. Tap on the zoom button to expand the signal horizontally 3. Tap again](https://reader034.vdocuments.site/reader034/viewer/2022042913/5f4a5cb741d8ed56b24561d2/html5/thumbnails/8.jpg)
Tap OK
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Recording has started (data is being acquired)
![Page 10: Sound Recording and Visualization - Stethographics · Normal 1st and 2nd heart sounds 1. Tap on the waveform 2. Tap on the zoom button to expand the signal horizontally 3. Tap again](https://reader034.vdocuments.site/reader034/viewer/2022042913/5f4a5cb741d8ed56b24561d2/html5/thumbnails/10.jpg)
Press the right side of the Navigation button to stop recording
![Page 11: Sound Recording and Visualization - Stethographics · Normal 1st and 2nd heart sounds 1. Tap on the waveform 2. Tap on the zoom button to expand the signal horizontally 3. Tap again](https://reader034.vdocuments.site/reader034/viewer/2022042913/5f4a5cb741d8ed56b24561d2/html5/thumbnails/11.jpg)
Tap the Yes button to Save the sound
![Page 12: Sound Recording and Visualization - Stethographics · Normal 1st and 2nd heart sounds 1. Tap on the waveform 2. Tap on the zoom button to expand the signal horizontally 3. Tap again](https://reader034.vdocuments.site/reader034/viewer/2022042913/5f4a5cb741d8ed56b24561d2/html5/thumbnails/12.jpg)
Insert headphones into audio output of the PDA
![Page 13: Sound Recording and Visualization - Stethographics · Normal 1st and 2nd heart sounds 1. Tap on the waveform 2. Tap on the zoom button to expand the signal horizontally 3. Tap again](https://reader034.vdocuments.site/reader034/viewer/2022042913/5f4a5cb741d8ed56b24561d2/html5/thumbnails/13.jpg)
Press the center of the Navigation button to play the sound
![Page 14: Sound Recording and Visualization - Stethographics · Normal 1st and 2nd heart sounds 1. Tap on the waveform 2. Tap on the zoom button to expand the signal horizontally 3. Tap again](https://reader034.vdocuments.site/reader034/viewer/2022042913/5f4a5cb741d8ed56b24561d2/html5/thumbnails/14.jpg)
The sound is being played back. The cursor on the screen is synchronized with the sound.
![Page 15: Sound Recording and Visualization - Stethographics · Normal 1st and 2nd heart sounds 1. Tap on the waveform 2. Tap on the zoom button to expand the signal horizontally 3. Tap again](https://reader034.vdocuments.site/reader034/viewer/2022042913/5f4a5cb741d8ed56b24561d2/html5/thumbnails/15.jpg)
Press the right side of the Navigation button to stop playback
![Page 16: Sound Recording and Visualization - Stethographics · Normal 1st and 2nd heart sounds 1. Tap on the waveform 2. Tap on the zoom button to expand the signal horizontally 3. Tap again](https://reader034.vdocuments.site/reader034/viewer/2022042913/5f4a5cb741d8ed56b24561d2/html5/thumbnails/16.jpg)
Heart Sound Visualization
![Page 17: Sound Recording and Visualization - Stethographics · Normal 1st and 2nd heart sounds 1. Tap on the waveform 2. Tap on the zoom button to expand the signal horizontally 3. Tap again](https://reader034.vdocuments.site/reader034/viewer/2022042913/5f4a5cb741d8ed56b24561d2/html5/thumbnails/17.jpg)
Normal 1st and 2nd heart sounds
1. Tap on the waveform
2. Tap on the zoom button to expand the signal horizontally
3. Tap again on the zoom button to further expand the signal.
![Page 18: Sound Recording and Visualization - Stethographics · Normal 1st and 2nd heart sounds 1. Tap on the waveform 2. Tap on the zoom button to expand the signal horizontally 3. Tap again](https://reader034.vdocuments.site/reader034/viewer/2022042913/5f4a5cb741d8ed56b24561d2/html5/thumbnails/18.jpg)
Well pronounced ejection murmur
1. Tap on the suspected
murmur
3. Tap again on the zoom button to further expand the signal.
2. Tap on the zoom button to expand the signal horizontally
![Page 19: Sound Recording and Visualization - Stethographics · Normal 1st and 2nd heart sounds 1. Tap on the waveform 2. Tap on the zoom button to expand the signal horizontally 3. Tap again](https://reader034.vdocuments.site/reader034/viewer/2022042913/5f4a5cb741d8ed56b24561d2/html5/thumbnails/19.jpg)
Faint ejection murmur between 1st and 2nd heart sounds
3. Tap again on the zoom button to further expand the signal. The faint murmur becomes obvious.
1. Tap on the suspected
murmur
2. Tap on the zoom button to expand the signal horizontally
![Page 20: Sound Recording and Visualization - Stethographics · Normal 1st and 2nd heart sounds 1. Tap on the waveform 2. Tap on the zoom button to expand the signal horizontally 3. Tap again](https://reader034.vdocuments.site/reader034/viewer/2022042913/5f4a5cb741d8ed56b24561d2/html5/thumbnails/20.jpg)
Aortic stenosis murmur
3. Tap again on the zoom button to further expand the signal.
1. Tap on the suspected
murmur
2. Tap on the zoom button to expand the signal horizontally
![Page 21: Sound Recording and Visualization - Stethographics · Normal 1st and 2nd heart sounds 1. Tap on the waveform 2. Tap on the zoom button to expand the signal horizontally 3. Tap again](https://reader034.vdocuments.site/reader034/viewer/2022042913/5f4a5cb741d8ed56b24561d2/html5/thumbnails/21.jpg)
Crackle and Wheeze Analysis
![Page 22: Sound Recording and Visualization - Stethographics · Normal 1st and 2nd heart sounds 1. Tap on the waveform 2. Tap on the zoom button to expand the signal horizontally 3. Tap again](https://reader034.vdocuments.site/reader034/viewer/2022042913/5f4a5cb741d8ed56b24561d2/html5/thumbnails/22.jpg)
3. Crackles and wheezes are counted and
identified
2. Tap Tools > Count Crackles and Wheezes1. Record sound
![Page 23: Sound Recording and Visualization - Stethographics · Normal 1st and 2nd heart sounds 1. Tap on the waveform 2. Tap on the zoom button to expand the signal horizontally 3. Tap again](https://reader034.vdocuments.site/reader034/viewer/2022042913/5f4a5cb741d8ed56b24561d2/html5/thumbnails/23.jpg)
Zooming in to crackles
1. Tap on the crackle to position
the cursor
2. Tap on the zoom button to expand the
signal horizontally
3. Tap again on the zoom button to
further expand the signal
![Page 24: Sound Recording and Visualization - Stethographics · Normal 1st and 2nd heart sounds 1. Tap on the waveform 2. Tap on the zoom button to expand the signal horizontally 3. Tap again](https://reader034.vdocuments.site/reader034/viewer/2022042913/5f4a5cb741d8ed56b24561d2/html5/thumbnails/24.jpg)
Zooming in to crackles
5. Tap again on the zoom button to
further expand the signal.
4. Tap again on the zoom button to
further expand the signal
6. Tap again on the zoom button to
further expand the signal.
![Page 25: Sound Recording and Visualization - Stethographics · Normal 1st and 2nd heart sounds 1. Tap on the waveform 2. Tap on the zoom button to expand the signal horizontally 3. Tap again](https://reader034.vdocuments.site/reader034/viewer/2022042913/5f4a5cb741d8ed56b24561d2/html5/thumbnails/25.jpg)
Zooming in to a wheeze
2. Tap Tools > Count Crackles and
Wheezes
1. Record sound 3. Position the cursor and tap on the zoom button to expand the signal
![Page 26: Sound Recording and Visualization - Stethographics · Normal 1st and 2nd heart sounds 1. Tap on the waveform 2. Tap on the zoom button to expand the signal horizontally 3. Tap again](https://reader034.vdocuments.site/reader034/viewer/2022042913/5f4a5cb741d8ed56b24561d2/html5/thumbnails/26.jpg)
Activate crackles and wheezes count in real-time
1. Tap Tools > Recording Options…
3. Tap OK2. Check the box “Analyze Crackles,
Wheezes in real time”
![Page 27: Sound Recording and Visualization - Stethographics · Normal 1st and 2nd heart sounds 1. Tap on the waveform 2. Tap on the zoom button to expand the signal horizontally 3. Tap again](https://reader034.vdocuments.site/reader034/viewer/2022042913/5f4a5cb741d8ed56b24561d2/html5/thumbnails/27.jpg)
4. Press the left side of the Navigation Button to start recording
5. Crackles and wheezes are identified automatically in real-time
![Page 28: Sound Recording and Visualization - Stethographics · Normal 1st and 2nd heart sounds 1. Tap on the waveform 2. Tap on the zoom button to expand the signal horizontally 3. Tap again](https://reader034.vdocuments.site/reader034/viewer/2022042913/5f4a5cb741d8ed56b24561d2/html5/thumbnails/28.jpg)
Handheld STG
• Lightweight, mobile device
• Objective evidence as a complement to the subjective informationfrom auscultation; particularly effective in evaluating heart illnesses, pneumonia, asthma and chronic obstructive pulmonary disease.
• Visualize murmurs with phonocardiogram display.
• Automated analysis of significant sound features.
• Waveform and time-expanded waveform displays.
• Longitudinal measurements.
• Email files to colleagues or to archives.