- Usefulness of ankle brachial pressure index measured using photoplethysmography and automated blood pressure measurement device
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Lee CW, Park KY, Son SM, Kim IJ, Kim YK
- KMID: 2424614
- Korean J Med.
- 2003 Jun;64(6):677-681.
BACKGROUND: Resting ankle brachial pressure index is a non-invasive method to assess the patency of lower extremity arterial system and it can be measured using traditional Doppler method or photoplethysmography.... -
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- Retrospective Study of Clinical Features and Courses of Raynaud's Phenomenon
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Yoo KE, Lee KB, Kim DI
- KMID: 1940998
- J Korean Soc Vasc Surg.
- 2006 May;22(1):1-5.
PURPOSE: Raynaud's phenomenon is characterized by recurrent episodes of arterial vasospasm of the digits upon exposure to cold, and this can occur alone or in association with other underlying conditions.... -
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- Current progress of photoplethysmography and SPO 2 for health monitoring
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Tamura T
- KMID: 2448395
- Biomed Eng Lett.
- 2019 Feb;9(1):21-36.
- doi: 10.1007/s13534-019-00097-w
A photoplethysmograph (PPG) is a simple medical device for monitoring blood fl ow and transportation of substances in the blood. It consists of a light source and a photodetector for... -
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- Photoplethysmographic Assessment of Blood Flow after Reanstomosis of the Femoral Artery in Rabbits
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Lee DY, Chung MS, Choi IH, Chung PH, Chung CY
- KMID: 2445673
- J Korean Orthop Assoc.
- 1987 Feb;22(1):1-13.
- doi: 10.4055/jkoa.1987.22.1.1
Photoplethysmography(PPG) employs an infrared light-emitting diode to transmit light into the skin noninvasively. Light reflected from blood cells is received by a photocell or phototrotransistor which permits recording of the... -
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- Wave Detection in Acceleration Plethysmogram
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Ahn JM
- KMID: 2284614
- Healthc Inform Res.
- 2015 Apr;21(2):111-117.
- doi: 10.4258/hir.2015.21.2.111
OBJECTIVES: Acceleration plethysmogram (APG) obtained from the second derivative of photoplethysmography (PPG) is used to predict risk factors for atherosclerosis with age. This technique is promising for early screening of... -
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- Effects of Enflurane on Pulse Transit Time
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Baik SW, Park YS, Yae SY, Jeon GR, Choi BC, Jung DK
- KMID: 2237550
- Korean J Anesthesiol.
- 2004 Jul;47(1):17-22.
- doi: 10.4097/kjae.2004.47.1.17
BACKGROUND: In Anesthetic state, many hemodynamic parameters including blood pressure, heart rate and arterial compliance are changed. Moreover pulse transit time (PTT) is influenced by heart rate, blood pressure... -
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- Assessment of Venous Function Using Photoplethysmography: Laboratory Setup
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Im TH, Lee HG, Baik HK, Park HK, Nam YS, Kwon OJ, Lee KS, Kwak JY
- KMID: 2198593
- J Korean Vasc Surg Soc.
- 1997 Nov;13(2):248-252.
BACLGROUND: It is essential to evaluate hemodynamics of vascular disease in addition to anatomic details. It has been known that the plethysmography represents intravascular(arterial or venous) volume or pressure. Photoplethysmography(PPG)... -
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- Therapeutic Effects of Lipo-Prostaglandin E1 in Buerger's Disease
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Ki SG, Kim YW
- KMID: 1939581
- J Korean Vasc Surg Soc.
- 1998 Nov;14(2):231-235.
To observe the therapeutic effects of iv Lipo-prostaglandin E1 for the patients with Buerger's disease, 16 patients presenting severe peripheral ischemic symptom were enrolled and prospectively assessed the efficacy of... -
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- Aging Index using Photoplethysmography for a Healthcare Device: Comparison with Brachial-Ankle Pulse Wave Velocity
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Hong KS, Park KT, Ahn JM
- KMID: 2284595
- Healthc Inform Res.
- 2015 Jan;21(1):30-34.
- doi: 10.4258/hir.2015.21.1.30
OBJECTIVES: Recent studies have emphasized the potential information embedded in peripheral fingertip photoplethysmogram (PPG) signals for the assessment of arterial wall stiffening during aging. For the discrimination of arterial stiffness... -
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- Non-Invasive Estimation of Systolic Blood Pressure and Diastolic Blood Pressure Using Photoplethysmograph Components
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Jeong I, Jun S, Um D, Oh J, Yoon H
- KMID: 1074985
- Yonsei Med J.
- 2010 May;51(3):345-353.
- doi: 10.3349/ymj.2010.51.3.345
PURPOSE: Photoplethysmography (PPG) is a noninvasive optical technology that detects changes in blood volume in the vascular system. This study aimed to investigate the possibilities of monitoring the cardiovascular system... -
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- Assessing Accuracy of Wrist-Worn Wearable Devices in Measurement of Paroxysmal Supraventricular Tachycardia Heart Rate
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Hwang J, Kim J, Choi KJ, Cho MS, Nam GB, Kim YH
- KMID: 2444963
- Korean Circ J.
- 2019 May;49(5):437-445.
- doi: 10.4070/kcj.2018.0323
BACKGROUND AND OBJECTIVES: Wrist-worn wearable devices provide heart rate (HR) monitoring function via photoplethysmography technology. Recently, these devices have been used by patients to measure the HR when palpitation occurs,... -
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- Effects of Vasoactive Drugs on Blood Flow in Rabbits: Photoplethysmographic Assessment
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Chung MS, Lo M, Chung MY, Lee HK, Lee SH
- KMID: 2445566
- J Korean Orthop Assoc.
- 1987 Dec;22(6):1397-1415.
- doi: 10.4055/jkoa.1987.22.6.1397
The dynamic blood flow is regulated by the numerous complex mechanisms. Since blood flow varies directly with the radius of the vessel, blood flow is markedly affected by small changes... -
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- Correlation between Doppler Ultrasonography and Impedance Plethysmography in Lower Extremity Varicose Vein
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Park BK, Kwon DR, Park JH, Moohn HN
- KMID: 2178780
- J Korean Acad Rehabil Med.
- 2002 Jun;26(3):337-341.
OBJECTIVE: To investigate the diagnostic validity of doppler ultrasonography (US) and impedance plethysmography (IPG) using photoplethysmography for evaluation of varicose vein of the lower extremities. METHOD: One hundred sixty-six limbs in... -
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- New Aging Index Using Signal Features of Both Photoplethysmograms and Acceleration Plethysmograms
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Ahn JM
- KMID: 2368985
- Healthc Inform Res.
- 2017 Jan;23(1):53-59.
- doi: 10.4258/hir.2017.23.1.53
OBJECTIVES: Acceleration plethysmograms (APGs) are obtained by taking the second derivative of photoplethysmograms (PPGs) and are noninvasive circulatory signals related to risk factors for atherosclerosis with age. There has been... -
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- The Changes of Differences of Pulse Transit Time between Toe and Finger in General and Epidural Anesthesia
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Kim TK, Cho AR, Choi BC, Baik SW
- KMID: 2238293
- Korean J Anesthesiol.
- 2007 Jul;53(1):21-26.
- doi: 10.4097/kjae.2007.53.1.21
BACKGROUND: Pulse wave velocity (PWV) and pulse transit time (PTT) are influenced by the arterial wall stiffness and compliance. Also, the PTT is dependent on blood pressure changes that can... -
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- Development of a Wearable Pulse Transit Time Monitoring Device
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Jung DK, Ha JS, Kang KT, Kim KN, Kim KR, Ye SY, Ro JH, Jeon GR
- KMID: 1747007
- J Korean Soc Med Inform.
- 2008 Sep;14(3):295-302.
OBJECTIVES: We have developed a non.intrusive continuous PTT monitoring system, using a wearable device and wireless communication technology. METHODS: Pulse transit time (PTT) is a non.invasive measurement that shows promise in... -
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- System for Collecting Biosignal Data from Multiple Patient Monitoring Systems
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Yoon D, Lee S, Kim TY, Ko J, Chung WY, Park RW
- KMID: 2396426
- Healthc Inform Res.
- 2017 Oct;23(4):333-337.
- doi: 10.4258/hir.2017.23.4.333
OBJECTIVES: Biosignal data include important physiological information. For that reason, many devices and systems have been developed, but there has not been enough consideration of how to collect and integrate... -
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- A Case of Raynaud's Phenomenon of both Feet in a Rock Drill Operator with Hand-arm Vibration Syndrome
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Choy N, Sim CS, Yoon JK, Kim SH, Park HO, Lee JH, Yoo CI
- KMID: 2033829
- Korean J Occup Environ Med.
- 2008 Jun;20(2):119-126.
BACKGROUND: There have been many studies on hand-arm vibration syndrome (HAVS) for almost a century. The Stockholm Workshop scale has been accepted as a useful tool in diagnosing HAVS. Although... -
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- Clinical Usefulness of the Second Derivative of a Photoplethysmogram Waveform(SDPTG)
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Oh HL, Cho JM, Jin ES, Kang HS, Choue CW, Kim KS, Song JS, Bae JH
- KMID: 1618735
- Korean Circ J.
- 2003 Mar;33(3):233-241.
- doi: 10.4070/kcj.2003.33.3.233
BACKGROUND AND OBJECTIVES: The second derivative of a photoplethysmogram (SDPTG) is a simple, convenient and non-invasive technique for pulse wave analysis. The SDPTG index correlates with age and other risk... -
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- Diagnosis and Treatment of Varicose Veins
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Park HC
- KMID: 2347868
- J Korean Med Assoc.
- 2001 Sep;44(9):996-1001.
- doi: 10.5124/jkma.2001.44.9.996
Varicose veins are dilated, tortuous veins exhibiting reflux because of valvular insufficiency. Dilatation of veins may be primary, that is, initiated by an unknown process, or may be the result... -
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