Smartphone Application as a Low-Cost Alternative for Digitizing Facial Defects: Is It Accurate Enough for Clinical Application?

2019 ◽  
Vol 32 (6) ◽  
pp. 541-543 ◽  
Author(s):  
Mahmoud Elbashti ◽  
Yuka Sumita ◽  
Amel Aswehlee ◽  
Rosemary Seelaus
Keyword(s):  
Clinical Application ◽  
Low Cost ◽  
Smartphone Application ◽  
Facial Defects

Development and Assessment of an Inexpensive Smartphone-Based Respiratory Droplet Simulation Model

2021 ◽  
pp. 155335062110658
Author(s):  
Amir A. Hakimi ◽  
Dana M. Hutchison ◽  
Asher Park ◽  
Natasha Atanaskova Mesinkovska ◽  
Sehwan Kim ◽  
...  
Keyword(s):  
Simulation Model ◽  
Blue Light ◽  
Open Source Software ◽  
Low Cost ◽  
Smartphone Application ◽  
Rank Test ◽  
Signed Rank ◽  
Signed Rank Test ◽  
Fluorescein Dye ◽  
Cobalt Blue

Background. Droplet simulation often requires expensive and inaccessible equipment. Herein, we develop and assess a low-cost droplet simulation model using easily accessible materials, open-source software, and a smartphone-based cobalt blue light. Methods. The simulation model was developed using commercial-grade materials and fluorescein dye. A clear face shield was assessed ten times following a simulated cough using fluorescein dye. A conventional ultraviolet Woods lamp was compared to a smartphone-based cobalt blue light to detect fluorescein illumination. Results. The simulation platform and smartphone-based cobalt blue light cost $20.18. A Wilcoxon signed rank test revealed that the median droplet area of fluorescence under the UV Wood’s lamp was not significantly different than that of the smartphone-based cobalt blue light (2.89 vs 2.94, P = .386). Conclusions. This simulation model is inexpensive and easily reproducible. The smartphone application may be a convenient alternative to standard ultraviolet lights. This model has great potential for use in financially restricted academic centers during the COVID-19 pandemic and beyond.

Methodology of developing a smartphone application for crisis research and its clinical application

2014 ◽  
Vol 22 (4) ◽  
pp. 547-559 ◽  
Author(s):  
Melvyn W.B. Zhang ◽  
Cyrus S.H. Ho ◽  
Pan Fang ◽  
Yanxia Lu ◽  
Roger C.M. Ho
Keyword(s):  
Clinical Application ◽  
Smartphone Application

First clinical application of low cost portable OCT system (Conference Presentation)

2019 ◽  
Author(s):  
Ge Song ◽  
Sanghoon Kim ◽  
Michael Crose ◽  
Brian Cox ◽  
Evan Jelly ◽  
...  
Keyword(s):  
Clinical Application ◽  
Low Cost

scholarly journals Instant messenger smartphone application for endosonographer/cytopathologist real-time interaction at a distance in EUS-FNA for solid pancreatic lesions

2019 ◽  
Vol 07 (08) ◽  
pp. E1027-E1030 ◽  
Author(s):  
Rodrigo S. Machado ◽  
Rafaela Richa ◽  
Fabiano Callegari ◽  
Giovana B. Souza ◽  
Luciano L. Tolentino ◽  
...  
Keyword(s):  
Low Cost ◽  
Smartphone Application ◽  
Needle Aspiration ◽  
Glass Slide ◽  
Pancreatic Lesion ◽  
Time Interaction ◽  
Instant Messenger ◽  
Site Evaluation ◽  
Solid Lesions ◽  
Age Range

Abstract Background and study aims Telecytopathology (TCP) may allow proper and timely evaluation of endoscopic ultrasound-guided fine-needle aspiration (EUS-FNA) specimens. The aim of this study was to evaluate the feasibility of TC through a multiplatform instant messenger smartphone application to evaluate specimens of EUS-FNA of pancreatic solid lesions. Patients and methods Twenty-three patients (14 male/9 female; median age: 56 yr.; age range: 33 – 86) with a solid pancreatic lesion were included. Exclusion criteria were as follows: age < 18 yr and predominantly cystic lesions. During each EUS-FNA, after each pass, the aspirated material was spread over a glass slide and was stained by the endoscopist. The glass slide was then reviewed on a microscope with a smartphone fitted in, and the most representative fields were captured and sent to the cytopathologist using WhatsApp Messenger. Results In initial evaluation using TCP rapid on-site evaluation (ROSE), adequate cellularity of the glass slide was detected in 16 of 23 patients (69.6 %). An initial diagnosis of malignancy (positive or suspicious) was possible in 14 of 23 patients (60.8 %). Conclusion The current study demonstrated the feasibility of a low-cost, Internet-based, telecytopathology system using WhatsApp Messenger to provide ROSE of EUS-FNA slides in patients with solid pancreatic lesions.

scholarly journals The Accuracy of Fitness Trackers Varies with Their Location on the Body (P16-019-19)

2019 ◽  
Vol 3 (Supplement_1) ◽  
Author(s):  
Donald Kotler ◽  
Christopher Wu ◽  
Kwame Thompson ◽  
Zachary Jenkins ◽  
Rafay Latif ◽  
...  
Keyword(s):  
Low Cost ◽  
Smartphone Application ◽  
Activity Monitor ◽  
The Body ◽  
Daily Step ◽  
Activity Monitors ◽  
Step Counts ◽  
Funding Sources ◽  
Fitness Tracker ◽  
Fitness Trackers

Abstract Objectives Advances in low cost physiologic monitoring devices have led to the possibility of making objective measures of physical activity in clinical practice. In a previous study, total daily step counts measured by a pedometer were lower than those obtained from a smartphone application, while exercise step counts were similar. It is uncertain which is the more accurate value for total daily steps. Most pedometers are worn on the torso while most fitness trackers are worn on the wrist. Overestimation of daily step counts by wrist-worn fitness trackers have been demonstrated by others. Specific aims: To estimate the precision of pedometer step counts measured during a 400 m walk. To compare daily step counts using a pedometer on the torso and fitness trackers worn on the wrist or on the torso. Methods Six subjects wore a pedometer (Omron Alvita HJ327T) and an activity monitor (Letscom Fitness Tracker ID130Plus ColorHR). Each subject wore the pedometer on the torso and two activity monitors for 3 days; both activity monitors on one wrist, one activity monitor on a wrist and the other on the torso (belt), and the reverse positions of the activity monitors. In addition, each subject completed a 400 m walk on two occasions and walked a total of 500 counted steps. Total and 400 m step counts for the pedometer and activity monitor and the test/retest results during the 400 m walk were compared by paired T test and inter-individual variations were compared by one-way analysis of variance (ANOVA). Results Pedometer-measured and counted steps differed by 1%. Test/retest pedometer step counts and times to completion for the 400 m walk both differed by 1.4%. Wrist-worn fitness trackers produced higher step counts than did the pedometers (18.6 + 0.18%, P < 0.002). Fitness trackers worn on the torso gave lower step counts than did the pedometer (−9.2 + 0.08%, P < 0.001). The inter-individual differences were not statistically significant for wrist or torso step counts. Conclusions A pedometer worn on the torso is a precise measure of step counts during a 400 m walk and accurate compared to counted steps. Wrist-worn fitness trackers overestimate total daily step counts, at least compared to a pedometer. The location of the fitness tracker on the body greatly influences its estimation of total daily step counts. Funding Sources Discretionary funds.

scholarly journals A novel opto-mechanical system constituted by LEDs to employment in photobiostimulation: Clinical application in optical therapy

2012 ◽  
Vol 27 (1) ◽  
pp. 9-18 ◽  
Author(s):  
Celso J. Barbosa ◽  
Crisaldo Teles ◽  
Leonardo M. Moreira ◽  
Álvaro J. Damião ◽  
Carlos J. de Lima
Keyword(s):  
Light Intensity ◽  
Mechanical System ◽  
Clinical Application ◽  
Near Infrared ◽  
Light Emission ◽  
Cooling System ◽  
Low Cost ◽  
Specific Area ◽  
Novel Device ◽  
Laser Systems

Optical techniques of photobiostimulation, which use transducer as lasers and LEDs, have been employed in the treatment of several diseases. The laser systems usually irradiate in a reduced area of the target biological tissue, presenting high cost of acquisition. Devices with a LED of “Surface Mount Device” (SMD) type have high angle of light emission, implying in intense decrease of the density of optical potency. Furthermore, the use of this device requires the utilization of a cooling system, which provokes an increase in the cost of this product. In the present work, it is suggested the application of a novel opto-mechanical device constituted by usual LEDs with package dimension of 5 mm of diameter, which presents significant efficient and very low cost. The arrangement of the geometric configuration of these LEDs is elaborated in such way that all units emit photons in a unique section of an specific area. An opto-mechanical system was developed, which includes seven LEDs, being that six of these LEDs are disposed in a specific angle around a unique central LED. It is important to notice that all the opto-mechanical system with seven LEDs emit light in a unique area. Besides, a methodology was employed to allow the verification of the distribution of light intensity upon this respective area. This arrangement allows that this novel device propitiate measurements of the degree of homogeneity of the light intensity in specific areas, which are accessed by the seven light emitting units. The potency employing LEDs in the red (visible) and near infrared regions were also measured, being that the result demonstrated the capability of clinical application in optical therapy of photobiostimulation, which was also used in a pilot test of clinical application.

Chemical traffic light: A self-calibrating naked-eye sensor for fluoride

2019 ◽  
Vol 23 (01n02) ◽  
pp. 117-124 ◽  
Author(s):  
Alessia D’Andrea ◽  
Giuseppe Pomarico ◽  
Sara Nardis ◽  
Roberto Paolesse ◽  
Corrado Di Natale ◽  
...  
Keyword(s):  
Low Cost ◽  
Aqueous Media ◽  
Smartphone Application ◽  
Fluoride Content ◽  
Color Variation ◽  
Fluoride Ion ◽  
Traffic Light ◽  
Naked Eye ◽  
Sensing Platform ◽  
Guideline Value

We report a low-cost sensing platform for effective naked-eye detection of fluoride ion in aqueous media. The sensor is based on silicon complex of 5,10,15-tritolylcorrole (SiTTCorr) deposited on paper support and designed in a particular way that permits it to perform in a unique sensing event an internal sensor self-calibration and subsequent analysis of fluoride ion in a concentration range from 20 [Formula: see text]g/L to 200 mg/L with a LOD 9 [Formula: see text]g/L, much lower than the WHO guideline value of 1.5 mg/L for fluoride in drinking water. The influence of tetradodecylammonium chloride (TDACl) anion exchanger addition to the performance of SiTTCorr-based sensors was studied and the sensor with optimal ionophore: exchanger [Formula: see text] 2:1 ratio demonstrated the highest sensitivity. The evident color variation of SiTTCorr-based optode from dark pink to intense green occurred upon addition of increasing concentrations of fluoride. A smartphone application equipped with home-written color intensity analysis software as a detector of developed sensor output permitted fluoride content quantification in bottled water and toothpaste samples. Moreover, since at the quantification step the SiTTCorr color variation was significant for the red component of visible light and increase of fluoride content evidently changed this color from red to yellow and then to green, the developed optode was compared to a kind of chemical traffic light, able to detect the presence of fluoride in permitted, borderline or dangerous concentrations, respectively.

scholarly journals Low cost NodeMcu based development water rocket measurement system applied to STEM education

2019 ◽  
Author(s):  
Andi Susilo ◽  
Yasmiati ◽  
Ahmad Apandi
Keyword(s):  
Stem Education ◽  
Measurement System ◽  
Velocity Measurement ◽  
High Speed ◽  
Low Cost ◽  
Smartphone Application ◽  
Water Volume ◽  
Learning Tools ◽  
Rocket Measurement ◽  
School Activity

Water rockets have become one of learning tools for STEM Education in schools. Generally water rockets make in school activity have no parachute load, altitude, and velocity measurement. Rocket can go any direction and also will cause hard collision to the ground that break the high speed rocket. It will take time and need more cost to make a new one for students. This study propose the low cost NodeMcu based water rocket measurement system to solve the problem. Altitude and velocity measurement are added and deployment system to release the parachute to make water rocket fall to the ground smoothly. Smartphone application used to monitor altitude and velocity of water rocket. Variables consist of water volume and air pressure. Five experiments had been conducted and recorded. The result found that the system could calculate Altitude, Velocity, and Deployment System also could release the parachute automatically in Coasting Descent position.

P578Use of a smartphone application to increase adherence to medical treatment in patients with acute coronary syndrome: a randomized clinical trial

2019 ◽  
Vol 40 (Supplement_1) ◽  
Author(s):  
C M Garmendia ◽  
P Miranda ◽  
E Verello ◽  
M A Goyeneche ◽  
J F Furmento ◽  
...  
Keyword(s):  
Medication Adherence ◽  
Medical Treatment ◽  
Low Cost ◽  
Intervention Group ◽  
Standard Of Care ◽  
Smartphone Application ◽  
Secondary Outcome ◽  
Control Group ◽  
Post Discharge ◽  
Coronary Syndrome

Abstract Background Adherence to cardiovascular medications following acute coronary syndrome (ACS) hospitalization is generally poor and is associated with increased risk of rehospitalization and mortality. There are still significant opportunities to identify simple and low-cost interventions that improve medication adherence and clinical outcomes. Purpose To evaluate the use of a digital platform for smartphones to improve adherence to medical treatment and outcomes for 90-days post discharge in patients hospitalized for ACS with or without ST-elevation. Methods This was a unicentric, single-blinded, randomized controlled trial enrolling 90 patients with an ACS event requiring hospitalization. The intervention consisted of a smartphone application which allowed for the loading of medication prescription together with reminder of the daily compliance. Patients in the intervention group (n=46) were equipped with the smartphone application. Patients in the control group (n=44) received written and oral instructions as per standard of care. The primary outcome was adherence to medical treatment measured at 90-days post discharge using the 8-item Morisky Medication Adherence Scale (MMAS-8). The secondary outcome was a composite of re-hospitalizations for ACS, consultations to the emergency department (ED), or unplanned visits to the clinic. Results The mean age of the population was 63.2±9.9 and 75.6% were male. At 90 days, 64.7% of patients using the smartphone application were adherent compared with 20.5% of patients in the control group (p<0.001). Patients in the intervention group had higher adherence (mean MMAS-8 score 7.52±1.25) compared with the control group (mean MMAS-8 score 6.47±1.23; p<0.001). The secondary outcome measures showed that there were no significant differences in patients using the smartphone application versus the standard of care (4.3% vs 15.9%, p=0.07, respectively). Table 1 Variables Global (n=90) Control (n=44) Intervention (n=46) p MMAS-8 score 7±1.34 6.47±1.23 7.52±1.25 <0.001 Adherents 40 (44.4%) 9 (20.5%) 31 (67.4%) <0.001 Events 9 (10.1%) 7 (15.9%) 2 (4.3%) 0.071 ED consultations 9 7 2 Score assessment 8.85±1.4 Conclusions In patients with ACS, the use of a smartphone application increased the medication adherence compared with the standard of care. These data suggest that there is potential for a simple, low-cost intervention to help patients adhere to medications. ClinicalTrials.gov unique identifier: NCT03766789.

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