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https://www.readbyqxmd.com/read/28975048/characterizing-orthostatic-tremor-using-a-smartphone-application
#1
Arjun Balachandar, Alfonso Fasano
BACKGROUND: Orthostatic tremor is one of the few tremor conditions requiring an electromyogram for definitive diagnosis since leg tremor might not be visible to the naked eye. PHENOMENOLOGY SHOWN: An iOS application (iSeismometer, ObjectGraph LLC, New York) using an Apple iPhone 5 (Cupertino, CA, USA) inserted into the patient's sock detected a tremor with a frequency of 16.4 Hz on both legs. EDUCATIONAL VALUE: The rapid and straightforward accelerometer-based recordings accomplished in this patient demonstrate the ease with which quantitative analysis of orthostatic tremor can be conducted and, importantly, demonstrates the potential application of this approach in the assessment of any lower limb tremor...
2017: Tremor and Other Hyperkinetic Movements
https://www.readbyqxmd.com/read/28972409/endoscope-i-an-innovation-in-mobile-endoscopic-technology-transforming-the-delivery-of-patient-care-in-otolaryngology
#2
N Mistry, C Coulson, A George
Digital and mobile device technology in healthcare is a growing market. The introduction of the endoscope-i, the world's first endoscopic mobile imaging system, allows the acquisition of high definition images of the ear, nose and throat (ENT). The system combines the e-i Pro camera app with a bespoke engineered endoscope-i adaptor which fits securely onto the iPhone or iPod touch. Endoscopic examination forms a salient aspect of the ENT work-up. The endoscope-i therefore provides a mobile and compact alternative to the existing bulky endoscopic systems currently in use which often restrict the clinician to the clinic setting...
October 3, 2017: Expert Review of Medical Devices
https://www.readbyqxmd.com/read/28952812/smartphone-guided-needle-angle-selection-during-ct-guided-procedures
#3
Sheng Xu, Venkatesh Krishnasamy, Elliot Levy, Ming Li, Zion Tsz Ho Tse, Bradford John Wood
OBJECTIVE: In CT-guided intervention, translation from a planned needle insertion angle to the actual insertion angle is estimated only with the physician's visuospatial abilities. An iPhone app was developed to reduce reliance on operator ability to estimate and reproduce angles. MATERIALS AND METHODS: The iPhone app overlays the planned angle on the smartphone's camera display in real-time based on the smartphone's orientation. The needle's angle is selected by visually comparing the actual needle with the guideline in the display...
September 27, 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/28918662/utility-of-the-iphone-4-gyroscope-application-in-the-measurement-of-wrist-motion
#4
Nuphar Lendner, Erik Wells, Idit Lavi, Yan Yan Kwok, Pak-Cheong Ho, Ronit Wollstein
BACKGROUND: Measurement of wrist range of motion (ROM) is important to all aspects of treatment and rehabilitation of upper extremity conditions. Recently, gyroscopes have been used to measure ROM and may be more precise than manual evaluations. The purpose of this study was to evaluate the use of the iPhone gyroscope application and compare it with use of a goniometer, specifically evaluating its accuracy and ease of use. METHODS: A cross-sectional study evaluated adult Caucasian participants, with no evidence of wrist pathology...
September 1, 2017: Hand: Official Journal of the American Association for Hand Surgery
https://www.readbyqxmd.com/read/28916508/development-of-a-whole-slide-imaging-system-on-smartphones-and-evaluation-with-frozen-section-samples
#5
Hong Yu, Feng Gao, Liren Jiang, Shuoxin Ma
BACKGROUND: The aim was to develop scalable Whole Slide Imaging (sWSI), a WSI system based on mainstream smartphones coupled with regular optical microscopes. This ultra-low-cost solution should offer diagnostic-ready imaging quality on par with standalone scanners, supporting both oil and dry objective lenses of different magnifications, and reasonably high throughput. These performance metrics should be evaluated by expert pathologists and match those of high-end scanners. OBJECTIVE: The aim was to develop scalable Whole Slide Imaging (sWSI), a whole slide imaging system based on smartphones coupled with optical microscopes...
September 15, 2017: JMIR MHealth and UHealth
https://www.readbyqxmd.com/read/28913401/use-of-iphone-technology-in-improving-acetabular-component-position-in-total-hip-arthroplasty
#6
Xiau Wei Tay, Benny Xu Zhang, George Gayagay
Improper acetabular cup positioning is associated with high risk of complications after total hip arthroplasty. The aim of our study is to objectively compare 3 methods, namely (1) free hand, (2) alignment jig (Sputnik), and (3) iPhone application to identify an easy, reproducible, and accurate method in improving acetabular cup placement. We designed a simple setup and carried out a simple experiment (see Method section). Using statistical analysis, the difference in inclination angles using iPhone application compared with the freehand method was found to be statistically significant (F[2,51] = 4...
September 2017: Arthroplasty Today
https://www.readbyqxmd.com/read/28893984/nanoswitch-linked-immunosorbent-assay-nlisa-for-fast-sensitive-and-specific-protein-detection
#7
Clinton H Hansen, Darren Yang, Mounir A Koussa, Wesley P Wong
Protein detection and quantification play critical roles in both basic research and clinical practice. Current detection platforms range from the widely used ELISA to more sophisticated, and more expensive, approaches such as digital ELISA. Despite advances, there remains a need for a method that combines the simplicity and cost-effectiveness of ELISA with the sensitivity and speed of modern approaches in a format suitable for both laboratory and rapid, point-of-care applications. Building on recent developments in DNA structural nanotechnology, we introduce the nanoswitch-linked immunosorbent assay (NLISA), a detection platform based on easily constructed DNA nanodevices that change conformation upon binding to a target protein with the results read out by gel electrophoresis...
September 26, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28890223/a-new-iphone-%C3%A2-application-for-measuring-active-craniocervical-range-of-motion-in-patients-with-non-specific-neck-pain-a-reliability-and-validity-study
#8
Mohammad Reza Pourahmadi, Rasool Bagheri, Morteza Taghipour, Ismail Ebrahimi Takamjani, Javad Sarrafzadeh, Mohammad Ali Mohseni-Bandpei
BACKGROUND CONTEXT: Measurement of cervical spine range of motion (ROM) is often considered to be an essential component of cervical spine physiotherapy assessment. PURPOSE: To investigate the reliability and validity of an iPhone(®) app (Goniometer Pro(©)) for measuring active craniocervical ROM (ACCROM) in patients with non-specific neck pain. STUDY DESIGN/SETTING: A cross-sectional study was conducted at the musculoskeletal biomechanics laboratory located at Iran University of Medical Sciences...
September 7, 2017: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/28851730/atrial-fibrillation-atrial-high-rate-events-ahres-look-and-you-will-find-then%C3%A2-what
#9
Albert L Waldo, A John Camm
The article by Halcox et al describes the REHEARSE-AF study (Assessment of Remote Heart Rhythm Sampling Using the AliveCor Heart Monitor to Screen for Atrial Fibrillation), a randomized trial of screening for atrial fibrillation (AF) with a smartphone-based single-lead electrocardiographic capture system in 1001 patients ≥65 years of age with a CHA2DS2-VASc score of ≥ 2 and without a history of AF. Patients were randomized either to biweekly electrocardiographic recordings with the iPhone device (iECG group; n=500) or to routine care (control group; n=501) over a 12-month period...
August 28, 2017: Circulation
https://www.readbyqxmd.com/read/28819683/an-iphone-application-using-a-novel-stool-color-detection-algorithm-for-biliary-atresia-screening
#10
Eri Hoshino, Kuniyoshi Hayashi, Mitsuyoshi Suzuki, Masayuki Obatake, Kevin Y Urayama, Satoshi Nakano, Yasuyuki Taura, Masaki Nio, Osamu Takahashi
BACKGROUND: The stool color card has been the primary tool for identifying acholic stools in infants with biliary atresia (BA), in several countries. However, BA stools are not always acholic, as obliteration of the bile duct occurs gradually. This study aims to introduce Baby Poop (Baby unchi in Japanese), a free iPhone application, employing a detection algorithm to capture subtle differences in colors, even with non-acholic BA stools. METHODS: The application is designed for use by caregivers of infants aged approximately 2 weeks-1 month...
August 17, 2017: Pediatric Surgery International
https://www.readbyqxmd.com/read/28767294/development-and-preliminary-testing-of-a-smartphone-based-injury-prevention-application-s-ipa-for-teachers-at-child-care-centers-in-south-korea
#11
Kyung-Ah Kang, Shin-Jeong Kim, So Ra Kang, Seung-Hee Lee, Yae Young Kim, Kevin Wayne Ellis
The purpose of this study was to develop a smartphone-based injury-prevention application (S-IPA) for teachers working in child-care centers, and to test the satisfaction level of the users of the application (app). Through a literature review and needs assessment, an app compatible with the Apple iPhone operating system was developed. The app was verified and the mean total satisfaction with 7 features of the app was 7.76 (± 1.13) on a score of 1-10. The result of the S-IPA survey showed a positive response, indicating a high potential for use as a teacher's educational guide, which would provide an effective information delivery system for the prevention of possible injuries at child-care centers...
July 2017: Journal of Community Health Nursing
https://www.readbyqxmd.com/read/28761328/training-time-and-quality-of-smartphone-based-anterior-segment-screening-in-rural-india
#12
Cassie A Ludwig, Megan R Newsom, Alexandre Jais, David J Myung, Somasheila I Murthy, Robert T Chang
OBJECTIVE: We aimed at evaluating the ability of individuals without ophthalmologic training to quickly capture high-quality images of the cornea by using a smartphone and low-cost anterior segment imaging adapter (the "EyeGo" prototype). METHODS: Seven volunteers photographed 1,502 anterior segments from 751 high school students in Varni, India, by using an iPhone 5S with an attached EyeGo adapter. Primary outcome measures were median photograph quality of the cornea and anterior segment of the eye (validated Fundus Photography vs Ophthalmoscopy Trial Outcomes in the Emergency Department [FOTO-ED] study; 1-5 scale; 5, best) and the time required to take each photograph...
2017: Clinical Ophthalmology
https://www.readbyqxmd.com/read/28758370/validity-of-the-remote-food-photography-method-against-doubly-labeled-water-among-minority-preschoolers
#13
Theresa Nicklas, Rabab Saab, Noemi G Islam, William Wong, Nancy Butte, Rebecca Schulin, Yan Liu, John W Apolzan, Candice A Myers, Corby K Martin
OBJECTIVE: The aim of this study was to determine the validity of energy intake (EI) estimations made using the remote food photography method (RFPM) compared to the doubly labeled water (DLW) method in minority preschool children in a free-living environment. METHODS: Seven days of food intake and spot urine samples excluding first void collections for DLW analysis were obtained on thirty-nine 3- to 5-year-old Hispanic and African American children. Using an iPhone, caregivers captured before and after pictures of each child's intake, pictures were wirelessly transmitted to trained raters who estimated portion size using existing visual estimation procedures, and energy and macronutrients were calculated...
September 2017: Obesity
https://www.readbyqxmd.com/read/28754335/reliability-assessment-of-measuring-active-wrist-pronation-and-supination-range-of-motion-with-a-smartphone
#14
C Santos, N Pauchard, A Guilloteau
This study aimed to improve clinical examination techniques by determining the reliability of different methods to evaluate forearm movements. Two methods using the iPhone™ 5 and its gyroscope application (alone [I5] or attached to a selfie stick [ISS]) were compared with two conventional measurement devices (a plastic goniometer with a hand-held pencil [HHP] and a bubble goniometer [BG]) to evaluate the active range of movement (AROM) of the wrist during pronation and supination. Two independent groups of subjects took part in this prospective single-center diagnostic study: 20 healthy subjects and 20 patients...
October 2017: Hand Surgery and Rehabilitation
https://www.readbyqxmd.com/read/28717871/sleeve-gastrectomy-telementoring-a-sages-multi-institutional-quality-improvement-initiative
#15
Ninh T Nguyen, Allan Okrainec, Mehran Anvari, Brian Smith, Oz Meireles, Denise Gee, Erin Moran-Atkin, Evelyn Baram-Clothier, Diego R Camacho
BACKGROUND: Sleeve gastrectomy is a relatively new procedure that developed as a result of rapid innovation in the field of bariatric surgery. As with any newly developed operation, there is a learning curve that potentially can be associated with higher morbidity. Real-time surgical mentoring reduces the learning curve effect but can be time intensive for the mentor. The aim of this initiative was to evaluate the feasibility, effectiveness, and satisfaction of surgical telementoring for laparoscopic sleeve gastrectomy...
July 17, 2017: Surgical Endoscopy
https://www.readbyqxmd.com/read/28700272/accuracy-of-a-fourth-generation-subcutaneous-continuous-glucose-sensor
#16
Mark P Christiansen, Satish K Garg, Ronald Brazg, Bruce W Bode, Timothy S Bailey, Robert H Slover, Ashley Sullivan, Suiying Huang, John Shin, Scott W Lee, Francine R Kaufman
BACKGROUND: This study evaluated the accuracy and performance of a fourth-generation subcutaneous glucose sensor (Guardian(™) Sensor 3) in the abdomen and arm. METHODS: Eighty-eight subjects (14-75 years of age, mean ± standard deviation [SD] of 42.0 ± 19.1 years) with type 1 or type 2 diabetes participated in the study. Subjects wore two sensors in the abdomen that were paired with either a MiniMed(™) 640G insulin pump, or an iPhone(®) or iPod(®) touch(®) running a glucose monitoring mobile application (Guardian Connect system) and a third sensor in the arm, which was connected to a glucose sensor recorder (GSR)...
August 2017: Diabetes Technology & Therapeutics
https://www.readbyqxmd.com/read/28697157/reliability-of-smartphone-based-instant-messaging-application-for-diagnosis-classification-and-decision-making-in-pediatric-orthopedic-trauma
#17
Ido Stahl, Alexander Katsman, Michael Zaidman, Doron Keshet, Amit Sigal, Mark Eidelman
OBJECTIVE: Smartphones have the ability to capture and send images, and their use has become common in the emergency setting for transmitting radiographic images with the intent to consult an off-site specialist. Our objective was to evaluate the reliability of smartphone-based instant messaging applications for the evaluation of various pediatric limb traumas, as compared with the standard method of viewing images of a workstation-based picture archiving and communication system (PACS)...
July 11, 2017: Pediatric Emergency Care
https://www.readbyqxmd.com/read/28697074/repair-of-bimalleolar-ankle-fracture
#18
Nina Fisher, Abiola Atanda, Stephanie Swensen, Kenneth A Egol
PURPOSE: The incidence of ankle fractures is rapidly increasing in geriatric populations. Of the 4 fracture patterns described by the Lauge-Hansen classification system, supination-external rotation (SER) accounts for most ankle fractures. This video demonstrates surgical repair of a SER type 4 ankle fracture in a geriatric patient. METHODS: SER type 4 ankle fractures are considered unstable and are generally treated with surgical fixation. After placement of plate and screws, intraoperative stress tests can be used to assess for syndesmotic widening...
August 2017: Journal of Orthopaedic Trauma
https://www.readbyqxmd.com/read/28656615/a-pilot-study-of-a-novel-smartphone-application-for-the-estimation-of-sleep-onset
#19
Hannah Scott, Leon Lack, Nicole Lovato
The aim of the study was to investigate the accuracy of Sleep On Cue: a novel iPhone application that uses behavioural responses to auditory stimuli to estimate sleep onset. Twelve young adults underwent polysomnography recording while simultaneously using Sleep On Cue. Participants completed as many sleep-onset trials as possible within a 2-h period following their normal bedtime. On each trial, participants were awoken by the app following behavioural sleep onset. Then, after a short break of wakefulness, commenced the next trial...
June 28, 2017: Journal of Sleep Research
https://www.readbyqxmd.com/read/28645535/data-security-and-privacy-in-apps-for-dementia-an-analysis-of-existing-privacy-policies
#20
Lisa Rosenfeld, John Torous, Ipsit V Vahia
INTRODUCTION: Despite tremendous growth in the number of health applications (apps), little is known about how well these apps protect their users' health-related data. This gap in knowledge is of particular concern for apps targeting people with dementia, whose cognitive impairment puts them at increased risk of privacy breaches. In this article, we determine how many dementia apps have privacy policies and how well they protect user data. METHODS: Our analysis included all iPhone apps that matched the search terms "medical + dementia" or "health & fitness + dementia" and collected user-generated content...
August 2017: American Journal of Geriatric Psychiatry
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