Результаты поиска

From blink to care: smartphone video-based functional analysis and personalized management in pediatric blepharoptosis.

Early detection of congenital ptosis is critical to prevent visual and psychosocial impairment in children, yet clinical assessment is challenged by limited patient cooperation and specialist availability. In this prospective, multicenter study, we developed and validated a smartphone-based system comprising three modules: morphological assessment, functional analysis, and a domain-adapted dialogue model, using 3164 blink clips and 1,229 facial images. The morphological module showed high measurement accuracy with intraclass correlation coefficients over 0.90 versus manual assessments. The fun…

Privacy-preserving adaptive arrhythmia monitoring with wearable ECG, smartphone PPG, and federated on-device learning.

INTRODUCTION: Wearable electrocardiography (ECG) and smartphone technology create new opportunities for arrhythmia monitoring outside clinical environments. However, deployable mobile cardiac systems must address more than just classification accuracy. They must reliably acquire physiological signals under real-world conditions, protect the privacy of sensitive cardiac data, adapt to user- and sensor-specific variability, and minimize false alarms in daily use. We present Cardio-FL, a smartphone-based digital health prototype for privacy-preserving, adaptive arrhythmia monitoring. METHODS: Th…

Effectiveness of Smartphone-Based Dyadic Interventions to Increase Physical Activity in Romantic Couples: Microrandomized Trial.

BACKGROUND: Social exchange processes, such as social support and social control, can promote health behavior change. However, these process … les (mean age 34.01, SD 11.03 y) were recruited through online advertisements and participated in a smartphone-based microrandomized trial over 55 days consisting of control and intervention phases. The fully automated dyadic interventions included a one-time psychoeducation intervention, weekly dyadic and collaborative planning, and dyadic just-in-time adap …

Neurofunctional gradients and molecular signatures underlying problematic smartphone use: A connectomic, psychological, and transcriptomic study.

Problematic smartphone use (PSU) is an emerging behavioral concern linked to impaired cognitive control and heightened social sensitivity, with fear of missing out (FoMO) increasingly recognized as a core psychological driver. However, the neurobiological mechanisms underlying PSU remain unclear. In this study, we investigated the neural architecture of PSU by integrating functional connectome gradient mapping, psychological mediation, and transcriptomic annotation. PSU severity was associated with altered principal gradients of functional connectivity, including increased connectivity gradien…

Automated Quantification of Shedding Hairs from Smartphone Photographs Using an AI Tool for Alopecia Monitoring.

INTRODUCTION: Objective shed-hair counts can support clinical assessment, longitudinal monitoring, and evaluation of treatment response. Manual counting is time-consuming, whereas visual estimates vary between observers. We developed an artificial intelligence (AI) model to count shedding hairs from ordinary smartphone photographs. METHODS: Thirty volunteers acquired 5630 home smartphone photographs of dark shedding hairs on light backgrounds, and paired manual counts served as the reference standard. Images were assigned by participant into training/internal validation (24 volunteers, 4509 i…

Facing fear through play: A smartphone-based proof-of-concept intervention using inverted augmented reality.

BACKGROUND: Despite the well-documented efficacy of exposure therapy for phobic disorders, its real-world implementation remains limited due … participated in a multiple-baseline design. At a randomly assigned time point, participants used a smartphone-based AR application, or in some cases, a VR headset version, to interact with virtual game elements within individualized fear-relevant environments. The task involved physically navigating individualized fear-relevant environments while collecting …

An Ecological Momentary Assessment Smartphone App for High-Risk HIV Populations: Development and Usability Study.

BACKGROUND: HIV incidence has continued to increase among men who have sex with men (MSM) in Peru, despite intervention efforts. Addressing stigma, risky behaviors, and low medication adherence is key to reducing incidence rates. Ecological momentary assessment (EMA) allows for collection of discrete, real-time data on stigmatized, risky behaviors while reducing recall bias. OBJECTIVE: The aim of this study was to develop and assess the usability of an EMA smartphone app among MSM with HIV in Peru, which tracks daily health risk behaviors to determine ease of use, usefulness, and satisfaction…

Quantitative Evaluation of Postural SmartVest's Multisensory Feedback for Affordable Smartphone-Based Post-Stroke Motor Rehabilitation.

Accessible tools for post-stroke motor rehabilitation are critically needed to promote recovery beyond clinical settings. This pilot study evaluated the impact of a posture correction intervention using the Postural SmartVest, a wearable device that delivers multisensory feedback via a smartphone app. Forty individuals with post-stroke hemiparesis participated in a single supervised session, during which each patient completed the same four-phase functional protocol: multidirectional walking, free walking toward a refrigerator, an upper-limb reaching and object-handling task, and walking back …

Analysis of Pelvis and Lower Limb Coordination in Stroke Patients Using Smartphone-Based Motion Capture.

Understanding the coordination between the pelvis and lower limbs in individuals with hemiplegic gait is crucial for deciphering their walking patterns. While studies have focused on lower limb kinematics in stroke patients, research on pelvis-lower limb coordination remains limited. This study aims to assess pelvis-lower limb coordination and kinematics in stroke patients using statistical parametric mapping (SPM) and smartphone-based markerless motion capture. Seventeen stroke patients and twenty healthy individuals were recruited to collect locomotion data using dual smartphone videos. For …

Dysfunctional reward processing amplifies stress-related smartphone overuse: Evidence from ERPs and ecological momentary assessment.

BACKGROUND AND AIMS: Problematic Smartphone Use (PSU) has become a major public health issue, with stress identified as a key factor. Pathological technology use is often linked to dysfunctional reward processing, which is characterized by hyperactivity during reward anticipation and hypoactivity during reward receipt, both closely tied to emotion regulation. This study aimed to investigate the association between PSU and event-related potentials (ERP) linked to reward anticipation and feedback processing, while elucidating the role of reward processing dysfunction in the escalation of daily l…

Evaluating the diagnostic accuracy of smartphone video clips against polysomnography for paediatric obstructive sleep apnoea.

BACKGROUND: The gold standard of paediatric obstructive sleep apnoea syndrome (OSAS) diagnosis is overnight polysomnography (PSG). Validated screening methods for paediatric OSAS are limited. Increasingly, concerned parents record videos that capture behaviours indicative of OSAS. We aimed to compare the diagnostic accuracy of a standardised sleep video analysis tool (Videosomnography Analysis for Paediatric Sleep Apnoea (VAPS)) against PSG for paediatric OSAS. METHODS: Children aged 2-12 years consecutively referred for suspected OSAS underwent PSG. Parents recorded two 1 min videos of their

Efficacy of a Smartphone-Based Digital Therapeutic (Anzeilax) in Generalized Anxiety Disorder: Randomized Controlled Trial.

BACKGROUND: Individuals with generalized anxiety disorder (GAD) often face challenges with self-regulation and limited access to traditional therapy. Although acceptance and commitment therapy (ACT) has demonstrated both efficacy and effectiveness in promoting psychological flexibility, scalable solutions are necessary to address these barriers. This study introduces Anzeilax, an ACT-based digital therapeutic (DTx) that incorporates self-talk as a novel mechanism of action (MoA) to enhance psychological flexibility in the treatment of GAD. OBJECTIVE: This study aimed to evaluate the efficacy

Smartphone-based colorimetric correction analysis system for long-term urine monitoring of chronic kidney disease.

The chronic kidney disease (CKD) poses a serious threat to human health. Long-term monitoring of urine is important in the management of CKD. Currently, the accuracy and stability of smartphone-based colorimetric analysis of urine indicators are limited due to the impact of different image-taking conditions on captured digital images of urine test strips. Herein, an attachment-free colorimetric correction analysis system (CCAS for short), consisting of a self-designed urine test strip array and an Android application integrated with an image calibration algorithm, were proposed for quantitativ…

Strategically engineered magnetic FeMICuMOFs for smartphone-assisted colorimetric and electrochemical surveillance of malachite green residues.

Rapid and accurate detection of Malachite Green (MG) residues in aquatic products is crucial for food safety and public health. Here, we strategically developed a multifunctional FeMICuMOF material through a self-supported molecular imprinting strategy and evaluated its application in electrochemical and smartphone-integrated colorimetric detection of MG. This design integrates an Fe3O4 core with a copper-based MOF coating, featuring specific binding sites for MG. It simplifies the operation and reduces complex matrix interference through magnetic separation, while achieving dual-mode signal t…

Comparing remote smartphone-based semen assessments with laboratory evaluations in men unselected for fertility concerns.

OBJECTIVE: To evaluate the quality of remote semen collection and a smartphone-based semen analysis system under real-world conditions compared with a laboratory assessment among participants who were unselected for fertility status. DESIGN: Prospective study. SUBJECTS: A total of 150 men unselected for fertility status who participated in the Reproductive Effects of Chemicals and Air Pollution (RECAP) study. EXPOSURE: Participants performed remote smartphone-based semen analysis and sent samples to a fertility center laboratory. MAIN OUTCOME MEASURES: Agreement of sperm concentration and …

Smartphone Scanning and Machine Learning for Automated Presurgical 3D-printed Plate Fabrication From Cleft Impressions.

Capturing accurate palatal impressions in newborns with cleft lip and palate is essential for early intervention, yet traditional methods using plaster casts are often challenging and uncomfortable for infants. We present an innovative digital workflow utilizing a smartphone scanning application and a machine learning tool for presurgical plate generation. This protocol employs an open-source mobile app to capture high-resolution 3-dimensional scans of the infant's palate directly at the point of care. The process includes positioning of the infant, scanning technique, and file exportation. Th…

Impact of Smartphone-Enabled Home Urinary Albumin-Creatinine Ratio Testing on Albuminuria Screening and Management.

RATIONALE & OBJECTIVE: Early detection of albuminuria can enable administration of therapeutic interventions that improve clinical outcomes in patients at elevated risk for chronic kidney disease (CKD). We investigated the impact of smartphone-enabled home urinary albumin-creatinine ratio (UACR) testing on albuminuria screening and clinical management of these patients. STUDY DESIGN: Nonrandomized clinical trial. SETTING & PARTICIPANTS: Active intervention group comprised 3,998 randomly selected adults (50% with hypertension but no diabetes; 50% with diabetes) receiving primary care at a lar…

Dual-Mode Methanol Sensing via Smartphone-Assisted Intelligent Sensor Based on Benzothiazole Donor-Acceptor Fluorophores.

Methanol, an alcohol solvent with significant roles in biology, industry, and the environment, can exert negative impacts on organisms and t … odiesel. Finally, a dual-mode convenient detection of methanol is achieved with the assistance of a smartphone.

Изучение эквивалентности оценок на основе смартфонов: Дистанционное, цифровое исследование, исследование "Принесите-принесите-ваше-наблюдение".

ПОВЫШЕНИЕ ОСНОВЫ: Открытое " Потоп-сигнал " является глобальным, открытым, полностью дистанционным, только цифровым исследованием, призванным понять движущие силы и барьеры, связанные с внедрением и постоянным использованием смартфона для измерения функциональных недостатков в естественной среде и в широких кругах исследователей. ЦЕЛЬ: Настоящее исследование направлено на оценку эквивалентности измерений приложения Flowlight Open по платформам операционной системы (OS), версиям OS и моделям смартфонов. МЕТОДЫ: Взрослые участники программы < < Открытая потоп > > , имеющие

Совпадение в аннотации оригинала
BACKGROUND: Floodlight Open is a global, open-access, fully remote, digital-only study designed to understand the drivers and barriers in deployment and persistence of use of a smartphone app for measuring functional impairment in a naturalistic setting and broad study population. OBJECTIVE: This study aims to assess measurement equivalence properties of th…