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https://www.readbyqxmd.com/read/29666670/analysis-of-a-pulse-rate-variability-measurement-using-a-smartphone-camera
#1
András Bánhalmi, János Borbás, Márta Fidrich, Vilmos Bilicki, Zoltán Gingl, László Rudas
Background: Heart rate variability (HRV) provides information about the activity of the autonomic nervous system. Because of the small amount of data collected, the importance of HRV has not yet been proven in clinical practice. To collect population-level data, smartphone applications leveraging photoplethysmography (PPG) and some medical knowledge could provide the means for it. Objective: To assess the capabilities of our smartphone application, we compared PPG (pulse rate variability (PRV)) with ECG (HRV)...
2018: Journal of Healthcare Engineering
https://www.readbyqxmd.com/read/29622592/contact-free-screening-of-atrial-fibrillation-by-a-smartphone-using-facial-pulsatile-photoplethysmographic-signals
#2
Bryan P Yan, William H S Lai, Christy K Y Chan, Stephen Chun-Hin Chan, Lok-Hei Chan, Ka-Ming Lam, Ho-Wang Lau, Chak-Ming Ng, Lok-Yin Tai, Kin-Wai Yip, Olivia T L To, Ben Freedman, Yukkee C Poh, Ming-Zher Poh
BACKGROUND: We aimed to evaluate a novel method of atrial fibrillation (AF) screening using an iPhone camera to detect and analyze photoplethysmographic signals from the face without physical contact by extracting subtle beat-to-beat variations of skin color that reflect the cardiac pulsatile signal. METHODS AND RESULTS: Patients admitted to the cardiology ward of the hospital for clinical reasons were recruited. Simultaneous facial and fingertip photoplethysmographic measurements were obtained from 217 hospital inpatients (mean age, 70...
April 5, 2018: Journal of the American Heart Association
https://www.readbyqxmd.com/read/29578478/screening-of-scoliosis-in-school-children-in-tehran-the-prevalence-rate-of-idiopathic-scoliosis
#3
Sepehr Moalej, Shahrbanoo Kazemi, Mahsa Asadabadi, Leila Khedmat, Rezvan Hashemi, Reza Tavacolizadeh, Zahra Vahabi, Ghazal Shariatpanahi
BACKGROUND: Scoliosis is abnormal sideways curve of spine .Screening for scoliosis is controversial, and there has been significant heterogeneity between studies. In Iran, there is still no suitable device to screen sideways curves in spine. OBJECTIVE: To investigate the simple scolioscreen software for screening the students of elementary schools for detecting schoolchildren scoliosis. This students has been examined by trained medical student and data entered in scolioscreen application of Iphone...
March 16, 2018: Journal of Back and Musculoskeletal Rehabilitation
https://www.readbyqxmd.com/read/29568701/reliability-and-concurrent-validity-of-the-iphone-%C3%A2-compass-application-to-measure-thoracic-rotation-range-of-motion-rom-in-healthy-participants
#4
James Furness, Ben Schram, Alistair J Cox, Sarah L Anderson, Justin Keogh
Background: Several water-based sports (swimming, surfing and stand up paddle boarding) require adequate thoracic mobility (specifically rotation) in order to perform the appropriate activity requirements. The measurement of thoracic spine rotation is problematic for clinicians due to a lack of convenient and reliable measurement techniques. More recently, smartphones have been used to quantify movement in various joints in the body; however, there appears to be a paucity of research using smartphones to assess thoracic spine movement...
2018: PeerJ
https://www.readbyqxmd.com/read/29538591/using-a-smartphone-as-a-tool-to-measure-compensatory-and-anomalous-head-positions
#5
Michelle de Lima Farah, Murillo Santinello, Luis Eduardo Morato Rebouças de Carvalho, Carlos Fumiaki Uesugui, Ronaldo Boaventura Barcellos
PURPOSE: To describe a new method for measuring anomalous head positions by using a cell phone. METHODS: The photo rotation feature of the iPhone® PHOTOS application was used. With the patient seated on a chair, a horizontal stripe was fixed on the wall in the background and a sagittal stripe was fixed on the seat. Photographs were obtained in the following views: front view (photographs A and B; with the head tilted over one shoulder) and upper axial view (photographs C and D; viewing the forehead and nose) (A and C are without camera rotation, and B and D are with camera rotation)...
January 2018: Arquivos Brasileiros de Oftalmologia
https://www.readbyqxmd.com/read/29525063/diagnostic-accuracy-of-a-novel-mobile-phone-application-for-the-detection-and-monitoring-of-atrial-fibrillation
#6
Guy Rozen, Jeena Vaid, Seyed Mohammadreza Hosseini, M Ihsan Kaadan, Allon Rafael, Attila Roka, Yukkee C Poh, Ming-Zher Poh, Edwin Kevin Heist, Jeremy Neil Ruskin
Atrial fibrillation (AF) is the most common sustained cardiac arrhythmia in adults, associated with significant morbidity, increased mortality, and rising health-care costs. Simple and available tools for the accurate detection of arrhythmia recurrence in patients after electrical cardioversion (CV) or ablation procedures for AF can help to guide therapeutic decisions. We conducted a prospective, single-center study to evaluate the accuracy of Cardiio Rhythm Mobile Application (CRMA) for AF detection. Patients >18 years of age who were scheduled for elective CV for AF were enrolled in the study...
February 13, 2018: American Journal of Cardiology
https://www.readbyqxmd.com/read/29519192/sound-analysis-of-a-left-ventricular-assist-device-a-technical-evaluation-of-ios-devices
#7
Per Sundbom, Michael Roth, Hans Granfeldt, Daniel M Karlsson, Henrik Ahn, Fredrik Gustafsson, Laila Hubbert
INTRODUCTION: The use of left ventricular assist device (LVAD) has grown rapidly. Adverse events do continue to occur. In recent years, analysis of LVAD sound recordings emerged as a means to monitor pump function and detect pump thrombosis. The aim of this study was to characterize the sounds from HeartMate II and to evaluate the use of handheld iOS devices for sound recordings. METHOD: Signal analysis of LVAD sound recordings, with dedicated recording equipment and iOS devices, was performed...
March 1, 2018: International Journal of Artificial Organs
https://www.readbyqxmd.com/read/29460319/validity-of-activity-trackers-smartphones-and-phone-applications-to-measure-steps-in-various-walking-conditions
#8
Christoph Höchsmann, Raphael Knaier, Jennifer Eymann, Jonas Hintermann, Denis Infanger, Arno Schmidt-Trucksäss
PURPOSE: To examine the validity of popular smartphone accelerometer applications and a consumer activity wristband compared to a widely-used research accelerometer while assessing the impact of the phone's position on the accuracy of step detection. METHODS: Twenty volunteers from two different age groups (Group A: 18-25 years, n=10; Group B 45-70 years, n=10) were equipped with three iPhone SE smartphones (placed in pants pocket, shoulder bag, and backpack), one Samsung Galaxy S6 Edge (pants pocket), one Garmin Vivofit 2 wristband, and two ActiGraph wGTX+ devices (worn at wrist and hip) while walking on a treadmill (1...
February 20, 2018: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/29447893/iphone-otoscopes-currently-available-but-reliable-for-tele-otoscopy-in-the-hands-of-parents
#9
Manan Udayan Shah, Maheep Sohal, Tulio A Valdez, Christopher R Grindle
OBJECTIVES: Tele-otoscopy has been validated for tympanostomy surveillance and remote diagnosis when images are recorded by trained professionals. The CellScope iPhone Otoscope is a device that may be used for tele-otoscopy and it enables parents to record their children's ear examinations and send the films for remote physician diagnosis. This study aims to determine the ability to diagnose, and the reliability of the diagnosis when utilizing video exams obtained by a parent versus video exams obtained by an otolaryngologist...
March 2018: International Journal of Pediatric Otorhinolaryngology
https://www.readbyqxmd.com/read/29429041/an-iphone-application-intervention-to-promote-surveillance-among-women-with-a-brca-mutation-pre-intervention-data
#10
Stephanie A Cohen, Courtney Lynam Scherr, Dawn M Nixon
Women with BRCA mutations, at significantly increased risk for breast and ovarian cancer, do not consistently adhere to management guidelines due to lack of awareness and challenges tracking appointments. We developed an iPhone application (app) to help BRCA carriers manage their surveillance. We explored baseline awareness and adherence to surveillance guidelines and analytic data from 21 months of app use. Descriptive statistics were calculated on responses (N = 86) to a survey about surveillance awareness and practices...
February 10, 2018: Journal of Genetic Counseling
https://www.readbyqxmd.com/read/29425632/electronic-health-record-on-the-go-device-form-factor-and-fitts-law
#11
Frank A Drews, Jonathan R Zadra, Jeremy Gleed
PURPOSE: With electronic health records (EHRs) becoming ubiquitous, computer use in exam rooms during patient-provider interactions is commonplace. Although computer use brings many benefits to providers, and patients generally rate computer-use as having a positive impact, the use of mobile devices could eliminate existing issues, for example allowing providers to enter or review records while face-to-face with patients. Using mobile devices increases flexibility of providers, but also creates challenges associated with the mobile device itself...
March 2018: International Journal of Medical Informatics
https://www.readbyqxmd.com/read/29423568/a-two-phase-approach-to-developing-snap-an-iphone-application-to-support-appointment-scheduling-and-management-for-women-with-a-brca-mutation
#12
Courtney Lynam Scherr, Jessica L Feuston, Dawn M Nixon, Stephanie A Cohen
Professional organizations provide surveillance guidelines for BRCA1 and BRCA2 (BRCA) carriers with intact breasts and/or ovaries to facilitate early cancer detection. However, literature indicates adherence to surveillance guidelines is inconsistent at best. Using the Messaging Model for Health Communication Campaigns framework, we undertook a two-phase formative research approach to develop an intervention to promote adherence to surveillance guidelines. Discussion groups identified preferred intervention format and function in phase I...
February 8, 2018: Journal of Genetic Counseling
https://www.readbyqxmd.com/read/29402755/medad-appq-a-quality-assessment-tool-for-medication-adherence-apps-on-ios-and-android-platforms
#13
Eskinder Eshetu Ali, Amanda Kai Sin Teo, Sherlyn Xue Lin Goh, Lita Chew, Kevin Yi-Lwern Yap
BACKGROUND: With the recent proliferation of smartphone medication adherence applications (apps), it is increasingly more difficult for patients and clinicians to identify the most useful app. OBJECTIVE: To develop a quality assessment tool for medication adherence apps, and evaluate the quality of such apps from the major app stores. METHODS: In this study, a Medication Adherence App Quality assessment tool (MedAd-AppQ) was developed and two evaluators independently assessed apps that fulfilled the following criteria: availability in English, had at least a medication reminder feature, non-specific to certain disease conditions (generic apps), free of technical malfunctions and availability on both the iPhone Operating System (iOS) and Android platforms...
February 2, 2018: Research in Social & Administrative Pharmacy: RSAP
https://www.readbyqxmd.com/read/29399830/electronic-device-generated-light-increases-reactive-oxygen-species-in-human-fibroblasts
#14
Evan Austin, Amy Huang, Tony Adar, Erica Wang, Jared Jagdeo
OBJECTIVES: Our skin is constantly exposed to light from solar radiation and electronic devices, which impact skin physiology and aging. The biological altering properties of ultraviolet (UV) solar radiation on skin have been well established. There is significant scientific and public interest on the effects of electronic device generated light (EDGL) on skin. Currently, the effects of EDGL on skin are largely unknown. EDGL includes UV, visible, and infrared light from consumer electronics such as smartphones, computers, and televisions...
February 5, 2018: Lasers in Surgery and Medicine
https://www.readbyqxmd.com/read/29382625/smartphone-app-based-assessment-of-gait-during-normal-and-dual-task-walking-demonstration-of-validity-and-reliability
#15
Brad Manor, Wanting Yu, Hao Zhu, Rachel Harrison, On-Yee Lo, Lewis Lipsitz, Thomas Travison, Alvaro Pascual-Leone, Junhong Zhou
BACKGROUND: Walking is a complex cognitive motor task that is commonly completed while performing another task such as talking or making decisions. Gait assessments performed under normal and "dual-task" walking conditions thus provide important insights into health. Such assessments, however, are limited primarily to laboratory-based settings. OBJECTIVE: The objective of our study was to create and test a smartphone-based assessment of normal and dual-task walking for use in nonlaboratory settings...
January 30, 2018: JMIR MHealth and UHealth
https://www.readbyqxmd.com/read/29328979/concurrent-validity-and-interrater-reliability-of-a-new-smartphone-application-to-assess-3d-active-cervical-range-of-motion-in-patients-with-neck-pain
#16
Martijn S Stenneberg, Harm Busstra, Michel Eskes, Emiel van Trijffel, Erik Cattrysse, Gwendolijne G M Scholten-Peeters, Rob A de Bie
BACKGROUND: There is a lack of valid, reliable, and feasible instruments for measuring planar active cervical range of motion (aCROM) and associated 3D coupling motions in patients with neck pain. Smartphones have advanced sensors and appear to be suitable for these measurements. OBJECTIVES: To estimate the concurrent validity and interrater reliability of a new iPhone application for assessing planar aCROM and associated 3D coupling motions in patients with neck pain, using an electromagnetic tracking device as a reference test...
April 2018: Musculoskeletal Science & Practice
https://www.readbyqxmd.com/read/29318257/iphone-based-device-helps-treat-river-blindness
#17
Jennifer Abbasi
No abstract text is available yet for this article.
January 9, 2018: JAMA: the Journal of the American Medical Association
https://www.readbyqxmd.com/read/29308956/management-of-a-patient-s-gait-abnormality-using-smartphone-technology-in-clinic-for-improved-qualitative-analysis-a-case-report
#18
William R VanWye, Donald L Hoover
BACKGROUND AND PURPOSE: Qualitative analysis has its limitations as the speed of human movement often occurs more quickly than can be comprehended. Digital video allows for frame-by-frame analysis, and therefore likely more effective interventions for gait dysfunction. Although the use of digital video outside laboratory settings, just a decade ago, was challenging due to cost and time constraints, rapid use of smartphones and software applications has made this technology much more practical for clinical usage...
May 2018: Physiotherapy Theory and Practice
https://www.readbyqxmd.com/read/29284911/the-most-common-smartphone-applications-used-by-medical-students-and-barriers-of-using-them
#19
Mohamad Jebraeily, Zahra Zare Fazlollahi, Bahlol Rahimi
Introduction: Medical knowledge is rapidly expanding and updating. It is very important that students can timely access to information and the latest scientific evidence without any time and place limitation. The smartphone is one of ICT tools that adopted greatly by healthcare professionals. Today, the most medical sciences universities have provided smartphone as an educational aid tool and acquisition licenses for medical apps resources in training of their students. Aim: This research was conducted to determine common smartphone applications among medical students of Urmia University of medical sciences and to identify barriers in using them...
December 2017: Acta Informatica Medica: AIM
https://www.readbyqxmd.com/read/29279620/can-active-signals-of-cellphone-interfere-with-electronic-working-length-determination-of-a-root-canal-in-a-dental-clinic-an-in-vivo-study
#20
Umadevi Kiritsinh Gohil, Vaishali V Parekh, Niraj Kinariwala, Kaushal M Oza, Mona C Somani
Objective: To evaluate the interference of active cellphones during electronic working length (EWL) determination of a root canal. Materials and Methods: Thirty patients requiring root canal treatment in the anterior teeth or premolars having single canal and mature apices were selected for this study. Working length determination was done using no. 15 K-file. Electronic apex locators ProPex Pixi and Root ZX mini were used for working length determination. Cellphones iPhone 6s and Xolo Q3000 were evaluated for their interference...
May 2017: Journal of Conservative Dentistry: JCD
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