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Sensors
Volume 22
Issue 17
10.3390/s22176465
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Communication
Peer-Review Record

Novel Design of a Multimodal Technology-Based Smart Stethoscope for Personal Cardiovascular Health Monitoring

Sensors 2022, 22(17), 6465; https://doi.org/10.3390/s22176465
by Heejoon Park 1, Qun Wei 1,2,*, Soomin Lee 3 and Miran Lee 4
Reviewer 1:
Chenxi Yang
Reviewer 2: Anonymous
Sensors 2022, 22(17), 6465; https://doi.org/10.3390/s22176465
Submission received: 1 August 2022 / Revised: 21 August 2022 / Accepted: 23 August 2022 / Published: 27 August 2022
(This article belongs to the Special Issue Smart Device and Wearable Sensors for Monitoring Heart Rate and Heart Rate Variability)

Round 1

Reviewer 1 Report

This paper proposed a novel smart stethoscope based on multimodal physiological signal measurement technology for personal cardiovascular health monitoring. The proposed device is designed in the shape of a compact personal computer mouse for easy grasping and attachment to the surface of the chest using only one hand, which is considered novel by reviewers. At the same time, the reviewer also pays attention to the following issues:

1. This paper developed a smart stethoscope that can be held by one hand to measure heart sounds and pulses simultaneously. Are pulse signals and heart sounds synchronized, or are they collected together but not completely synchronized? If it is synchronized, explain how it is done.

2. What is the sampling frequency of the Heart sound signals and pulse signals? what is the highest sampling frequency of the device?

 

3. For the signal quality of the prototype designed in this paper, only the average amplitude is compared. The envelope shape of the pulse signal in Figure 6(c) is roughly the same as that in Figure 6(d), but the details of the descending part do not seem to be exactly the same, but that part contains some important information. Please explain it.

Author Response

Please see the attachment. 

Author Response File: Author Response.pdf

Reviewer 2 Report

The authors presented a novel smart stethoscope based on multimodal physiological signal measurement technology for personal cardiovascular health monitoring. The work is interesting and meaningful.
However, there are two major problems in this work that need further consideration:
1. Why only do the in-vivo experiment with 20 young adults? What is the audience for which this device was invented?
2. Why is the test instrument invented in this paper not compared with the results of other existing similar instruments?

Author Response

Please see the attachment.

Author Response File: Author Response.pdf

Round 2

Reviewer 2 Report

I have no more questions.

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