A cost-effective smartphone-based device for ankle-brachial index (ABI) detection
Zhongyun Yuan1, Xinru Huang1, Pei Wan1
1MicroNano System Research Center, College of Information & Computer Engineering, Key Laboratory of Advanced Transducers and Intelligent Control System of Ministry of Education and Shanxi Province, Taiyuan University of Technology, Taiyuan 030024, China.
Computer Methods and Programs in Biomedicine
|October 18, 2020
Summary
A new smartphone-based device offers accurate, non-invasive ankle-brachial index (ABI) monitoring for arteriosclerosis. This portable, cost-effective tool enables continuous home health care and remote patient monitoring.
Area of Science:
- Biomedical Engineering
- Cardiovascular Diagnostics
- Medical Device Development
Background:
- Arteriosclerosis poses significant risks for geriatric and chronic diseases.
- Current arteriosclerosis treatments are shifting towards home and community care.
- Traditional ankle-brachial index (ABI) devices are costly and less suitable for home use, especially for restricted patients.
Purpose of the Study:
- To develop a simple, non-invasive, smartphone-based device for ankle-brachial index (ABI) monitoring.
- To enable cuffless and remote monitoring of cardiovascular health for early arteriosclerosis detection.
- To provide a cost-effective and portable alternative to traditional ABI measurement tools.
Main Methods:
- Development of a smartphone-based system with four wireless, cuffless limb blood sensors.
- Utilizing a multiparameter fusion (MPF) algorithm to estimate blood pressure and ABI from blood flow waveforms.
- Employing an ARM-based microcontroller (STM32) with embedded C++ programming for ABI calculation.
- Bluetooth data transmission to a smartphone app for real-time visualization and analysis.
Main Results:
- The developed device achieved 91.80% accuracy in patients and 93.84% in sub-health volunteers compared to classical Doppler equipment.
- The prototype demonstrated stable performance for continuous, long-term monitoring.
- The system successfully estimates blood pressure and generates ABI values non-invasively.
Conclusions:
- The smartphone-based ABI device is sufficiently accurate for home medical and chronic disease monitoring.
- The device offers significant advantages in portability, cost-effectiveness, and energy efficiency over traditional methods.
- This technology facilitates remote monitoring of cardiovascular patients, aiding in arteriosclerosis risk assessment.
Related Concept Videos
01:15Assessment of blood pressure in brachial artery(one-step method)
934
This procedural guide systematically measures blood pressure using an oscillometric digital sphygmomanometer, emphasizing accuracy, patient safety, and comfort.
Prepare for the Procedure:
Prepare for the Procedure:
934
01:23Assessment of blood pressure in brachial artery(two-step method)
1.3K
Measuring blood pressure is a fundamental skill in healthcare that aids in diagnosing and monitoring hypertension and other cardiovascular conditions. An aneroid sphygmomanometer, commonly used in clinical settings, offers a manual and precise method for blood pressure measurement. The technique for using this instrument involves specific steps that must be carefully executed to ensure accuracy. The following detailed description outlines a two-step technique for assessing blood pressure using...
1.3K
01:19Assessing Blood pressure using a doppler ultrasound
2.1K
To obtain accurate blood pressure measurements in clinical settings, especially when traditional methods are insufficient, healthcare professionals utilize the Doppler ultrasound technique. This method uses high-frequency sound waves to detect blood flow within the arteries, which is crucial for patients with conditions that complicate circulatory system assessment.
Pre-Procedural Guidelines for Doppler Ultrasound Blood Pressure Assessment:
Preparation of Equipment:
Pre-Procedural Guidelines for Doppler Ultrasound Blood Pressure Assessment:
Preparation of Equipment:
2.1K
01:30Equipments Used To Measure Blood Pressure
2.8K
Direct Method
This invasive approach involves cannulating a peripheral artery. During each cardiac contraction, pressure generates mechanical motion within the catheter, transmitted through rigid, fluid-filled tubing to a transducer. This transducer converts mechanical motion into electrical signals displayed as waveforms on a monitor. An automatic flushing system prevents blood backflow. Due to the potential risk of unexpected arterial blood loss, this method is primarily used in intensive...
This invasive approach involves cannulating a peripheral artery. During each cardiac contraction, pressure generates mechanical motion within the catheter, transmitted through rigid, fluid-filled tubing to a transducer. This transducer converts mechanical motion into electrical signals displayed as waveforms on a monitor. An automatic flushing system prevents blood backflow. Due to the potential risk of unexpected arterial blood loss, this method is primarily used in intensive...
2.8K
01:21Sites for measruring blood pressure
3.0K
Blood pressure measurement is a fundamental clinical procedure, providing crucial data for assessing cardiovascular health. Among the various sites for this measurement, the brachial and popliteal arteries are predominantly utilized due to their accessibility and the reliability of their readings. This lesson delves into the anatomical significance, methodology, and considerations of measuring blood pressure at these locations.
The Brachial Artery: Primary Site for Blood Pressure Measurement
The Brachial Artery: Primary Site for Blood Pressure Measurement
3.0K
01:11Assessing Blood pressure in the Leg
7.0K
Proper measurement of leg blood pressure is a critical skill for healthcare providers, ensuring precise and reliable readings. When performed correctly, this procedure informs patient care and enhances the efficacy of interventions. The following text outlines step-by-step guidelines to measure blood pressure in the leg, providing clarity and ease of understanding for practitioners.
Preparation:
Preparation:
7.0K