Records, Sound Capture and Storage
User Manual (392 KB)
An important feature of the STG system is the correlation of lung sounds
with patient records. Physicians and nurses can enter patient name,
comments and the location of the chest piece for each recording. Each
20 second heart or lung sound is recorded and identified with the
and the location of the chest piece.
sound recording are stored on the iPAQ Pocket PC for reference during
examination or afterwards. The files can be emailed to colleagues using
the standard email software in the iPAQ. Using the included Microsoft
synchronization software, patient recordings can be uploaded to a PC.
Some healthcare personnel elect to print the waveforms and place these
reports in the patients file. Using printed or electronic reports, a history
of patient sound recordings and waveforms can play an important role in
monitoring the course of illnesses.
Sound Display, Playback and Analysis
STG for Pocket PC™ allows direct visual and simultaneous audible
detection of the normal and abnormal sounds. The sound recording
filter which can be used to tune the system for lung or heart sounds.
These sounds can be displayed, recorded and played back, for each
a check on the physician's interpretation, the STG counts fine and
crackles, wheezes, and irregular patterns of inspiration and expiration.
These counts are displayed on a bar chart and the waveform is marked
The spectrum (spectra density), of the sound recording can also be displayed
by selecting a toolbar icon.
Sounds - Asthma (Wheeze)
Lung Sounds - CHF
Lung Sounds - CHF
Lung Sounds - Normal
Lung Sounds - Pneumonia
Sound Display and Analysis
heart sounds, a phonocardiogram is displayed in real time. Prior to recording,
the physician can choose to filter sounds by frequency, a feature which
is similar to that offered by electronic stethoscopes.
display can be controlled in both sound amplitude and in the time
Sound normalization can also be selected. Heart beat rate is provided
on the display. Optionally, the STG will mark the waveform for significant
heart sound features for all or a selected portion of the recording.
Sounds - Normal
Heart Sounds - Aortic
Heart Sounds - Ejection
iPAQ Pocket PC comes equipped with a docking station that establishes
data communications between Pocket PC and a Windows desktop personal
computer. Using this connection,
patient recordings can be moved from the mobile device to the
With the recording files on the desktop, three significant functions
are facilitated. First, the recordings can be permanently stored on
drive, burned to a CD-ROM or printed. Second, selected recordings can
be emailed. Finally, the recordings can be viewed on the desktop using
companion STG for PC™ Desktop Viewer. For example, this application
can be used to display patient heart murmurs over time, allowing the
to study the patient's treatment progress over a period of time.