Abstract：
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). To have a baseline, we also compared the differences among ECG channels. Method:We took fifty parallel measurements using iPhone 6 at a 240 Hz sampling frequency and Cardiax PC-ECG devices. The correspondence between the PRV and HRV indices was investigated using correlation, linear regression, and Bland-Altman analysis. Results:High PPG accuracy: the deviation of PPG-ECG is comparable to that of ECG channels. Mean deviation between PPG-ECG and two ECG channels: RR: 0.01 ms-0.06 ms, SDNN: 0.78 ms-0.46 ms, RMSSD: 1.79 ms-1.21 ms, and pNN50: 2.43%-1.63%. Conclusions:Our iPhone application yielded good results on PPG-based PRV indices compared to ECG-based HRV indices and to differences among ECG channels. We plan to extend our results on the PPG-ECG correspondence with a deeper analysis of the different ECG channels.
journal_name
J Healthc Engjournal_title
Journal of healthcare engineeringauthors
Bánhalmi A,Borbás J,Fidrich M,Bilicki V,Gingl Z,Rudas Ldoi
10.1155/2018/4038034subject
Has Abstractpub_date
2018-02-05 00:00:00pages
4038034eissn
2040-2295issn
2040-2309journal_volume
2018pub_type
杂志文章abstract：:There are various methods to generate nanobubbles, and in this study, we experimented using a nanobubble generator with a high-density of stainless steel mesh nozzle to deliver nanobubble water (normal water and two kinds of mouthwash) stream through a tooth tray to clean bacteria coated on the denture. It showed that...
journal_title：Journal of healthcare engineering
pub_type： 杂志文章
doi：10.1155/2020/8871849
更新日期：2020-10-30 00:00:00
abstract：:The hemiplegic rehabilitation state diagnosing performed by therapists can be biased due to their subjective experience, which may deteriorate the rehabilitation effect. In order to improve this situation, a quantitative evaluation is proposed. Though many motion analysis systems are available, they are too complicate...
journal_title：Journal of healthcare engineering
pub_type： 杂志文章
doi：10.1155/2017/1949170
更新日期：2017-01-01 00:00:00
abstract：:In the service industry, scheduling medical procedures causes difficulties for both patients and management. Factors such as fluctuations in customer demand and service time affect the appointment scheduling systems' performance in terms of, for example, patients' waiting time, idle time of resources, and total cost/p...
journal_title：Journal of healthcare engineering
pub_type： 杂志文章
doi：10.1260/2040-2295.6.2.259
更新日期：2015-01-01 00:00:00
abstract：:The prosthetic component of dental implant is attached on the abutment which is connected to the fixture with an abutment screw. The abutment screw fracture is not frequent; however, the retrieval of the fractured screw is not easy, and it poses complications. A retrieval kit was developed which utilizes screw removal...
journal_title：Journal of healthcare engineering
pub_type： 杂志文章
doi：10.1155/2017/4842072
更新日期：2017-01-01 00:00:00
abstract：:Apraxia of speech is a motor speech disorder in which messages from the brain to the mouth are disrupted, resulting in an inability for moving lips or tongue to the right place to pronounce sounds correctly. Current therapies for this condition involve a therapist that in one-on-one sessions conducts the exercises. Ou...
journal_title：Journal of healthcare engineering
pub_type： 杂志文章
doi：10.1155/2018/7075290
更新日期：2018-03-11 00:00:00
abstract：Background:Low back pain (LBP) continues to be a severe global healthy problem, and a lot of patients would undergo conservative or surgical treatments. However, the improving capacity of spinal load sharing during activities of daily living (ADLs) after interventions is largely unknown. The objective of this study was...
journal_title：Journal of healthcare engineering
pub_type： 杂志文章
doi：10.1155/2019/6406813
更新日期：2019-12-17 00:00:00
abstract：Purpose:To evaluate a new postprocessing framework that eliminates arterial vessel signal contributions in the quantification of normalized visible venous volume (NVVV, a ratio between venous and brain volume) in susceptibility-weighted imaging (SWI) exams in patients with sickle cell disease (SCD). Materials and Meth...
journal_title：Journal of healthcare engineering
pub_type： 杂志文章
doi：10.1155/2017/5369385
更新日期：2017-01-01 00:00:00
abstract：:A systematical evaluation work was performed on ten widely used and high-efficient QRS detection algorithms in this study, aiming at verifying their performances and usefulness in different application situations. Four experiments were carried on six internationally recognized databases. Firstly, in the test of high-q...
journal_title：Journal of healthcare engineering
pub_type： 杂志文章
doi：10.1155/2018/9050812
更新日期：2018-05-08 00:00:00
abstract：:This paper employed the clinical Polysomnographic (PSG) data, mainly including all-night Electroencephalogram (EEG), Electrooculogram (EOG) and Electromyogram (EMG) signals of subjects, and adopted the American Academy of Sleep Medicine (AASM) clinical staging manual as standards to realize automatic sleep staging. Au...
journal_title：Journal of healthcare engineering
pub_type： 杂志文章
doi：10.1260/2040-2295.5.4.505
更新日期：2014-01-01 00:00:00
abstract：:The thyroid is one of the largest endocrine glands in the human body, which is involved in several body mechanisms like controlling protein synthesis and the body's sensitivity to other hormones and use of energy sources. Hence, it is of prime importance to track the shape and size of thyroid over time in order to eva...
journal_title：Journal of healthcare engineering
pub_type： 杂志文章
doi：10.1155/2018/8087624
更新日期：2018-09-23 00:00:00
abstract：:Cataract is one of the leading causes of blindness in the world's population. A method to evaluate blurriness for cataract diagnosis in retinal images with vitreous opacity is proposed in this paper. Three types of features are extracted, which include pixel number of visible structures, mean contrast between vessels ...
journal_title：Journal of healthcare engineering
pub_type： 杂志文章
doi：10.1155/2017/5645498
更新日期：2017-01-01 00:00:00
abstract：:Tactile-kinesthetic-proprioceptive (TKP) input used to facilitate speech motor control is considered an active ingredient within speech motor interventions. Objective metrics identifying skill level differences across speech-language pathologists (S-LP) providing TKP cues are crucial for monitoring treatment delivery ...
journal_title：Journal of healthcare engineering
pub_type： 杂志文章
doi：10.1155/2018/4323046
更新日期：2018-12-31 00:00:00
abstract：:Diabetic skin manifestations, previous to ulcers and wounds, are not highly accounted as part of diagnosis even when they represent the first symptom of vascular damage and are present in up to 70% of patients with diabetes mellitus type II. Here, an application for skin macules characterization based on a three-stage...
journal_title：Journal of healthcare engineering
pub_type： 杂志文章
doi：10.1155/2018/9397105
更新日期：2018-12-16 00:00:00
abstract：:Three-dimensional speckle tracking echocardiography (3D STE) is an emerging noninvasive method for predicting left ventricular remodeling (LVR) after acute myocardial infarction (AMI). Previous studies analyzed the predictive value of 3D STE with traditional models. However, no models that contain comprehensive risk f...
journal_title：Journal of healthcare engineering
pub_type： 杂志文章
doi：10.1155/2020/8847144
更新日期：2020-07-30 00:00:00
abstract：:In tongue diagnosis, colour information of tongue body has kept valuable information regarding the state of disease and its correlation with the internal organs. Qualitatively, practitioners may have difficulty in their judgement due to the instable lighting condition and naked eye's ability to capture the exact colou...
journal_title：Journal of healthcare engineering
pub_type： 杂志文章
doi：10.1155/2017/7460168
更新日期：2017-01-01 00:00:00
abstract：:Porous oligolactide-hydroxyapatite composite scaffolds were obtained by stereolithographic fabrication. Gentamicin was then coated on the scaffolds afterwards, to achieve antimicrobial delivery ability to treat bone infection. The scaffolds examined by stereomicroscope, SEM, and μCT-scan showed a well-ordered pore str...
journal_title：Journal of healthcare engineering
pub_type： 杂志文章
doi：10.1155/2017/9547896
更新日期：2017-01-01 00:00:00
abstract：:The continuous technological advances in favor of mHealth represent a key factor in the improvement of medical emergency services. This systematic review presents the identification, study, and classification of the most up-to-date approaches surrounding the deployment of architectures for mHealth. Our review includes...
journal_title：Journal of healthcare engineering
pub_type： 杂志文章
doi：10.1155/2017/9186270
更新日期：2017-01-01 00:00:00
abstract：:Microwave ablation (MWA) by using coaxial antennas is a promising alternative for breast cancer treatment. A double short distance slot coaxial antenna as a newly optimized applicator for minimally invasive treatment of breast cancer is proposed. To validate and to analyze the feasibility of using this method in clini...
journal_title：Journal of healthcare engineering
pub_type： 杂志文章
doi：10.1155/2018/5806753
更新日期：2018-05-08 00:00:00
abstract：:The early screening and diagnosis of tuberculosis plays an important role in the control and treatment of tuberculosis infections. In this paper, an integrated computer-aided system based on deep learning is proposed for the detection of multiple categories of tuberculosis lesions in chest radiographs. In this system,...
journal_title：Journal of healthcare engineering
pub_type： 杂志文章
doi：10.1155/2020/9205082
更新日期：2020-08-24 00:00:00
abstract：:Wireless capsule endoscopy (WCE) is an effective video technology to diagnose gastrointestinal (GI) disease, such as bleeding. In order to avoid conventional tedious and risky manual review process of long duration WCE videos, automatic bleeding detection schemes are getting importance. In this paper, to investigate b...
journal_title：Journal of healthcare engineering
pub_type： 杂志文章
doi：10.1155/2018/9423062
更新日期：2018-02-25 00:00:00
abstract：:The structural and functional neural differences between the elite karate athletes and control group have been investigated in the concept of this study. 13 elite karate athletes and age-gender matched 13 volunteers who have not performed regular exercises participated in the study. Magnetic resonance imaging was used...
journal_title：Journal of healthcare engineering
pub_type： 杂志文章
doi：10.1155/2018/8310975
更新日期：2018-10-23 00:00:00
abstract：:Patients in the intensive care unit require fast and efficient handling, including in-diagnosis service. The objectives of this study are to produce a computer-aided system so that it can help radiologists to classify the types of brain tumors suffered by patients quickly and accurately; to build applications that can...
journal_title：Journal of healthcare engineering
pub_type： 杂志文章
doi：10.1155/2020/2483285
更新日期：2020-07-14 00:00:00
abstract：:This research aimed to find main users, frequent utilized tasks, major usability problems, and the context of use of a neonatal incubator (NI) present in a neonatal intensive care unit from a Brazilian hospital and to find out the problems faced by a new user. The chosen methods were the heuristics analysis, contextua...
journal_title：Journal of healthcare engineering
pub_type： 杂志文章
doi：10.1155/2019/8589727
更新日期：2019-01-06 00:00:00
abstract：Objectives:This study was performed to provide epidemiological information on microbial colonization in central venous catheters (CVCs). Methods:CVCs submitted to Medical Microbiology Laboratory from January 1, 2013, through October 1, 2017, which met our criteria would be included for analysis. Quantitative culture w...
journal_title：Journal of healthcare engineering
pub_type： 杂志文章
doi：10.1155/2019/8632701
更新日期：2019-09-17 00:00:00
abstract：:This study aimed to forecast the pattern of the demand for hemorrhagic stroke healthcare services based on air quality and machine learning. Hemorrhagic stroke, air quality, and meteorological data for 2016-2017 were obtained from the Longquanyi District of China, and the study included 1932 cases. Six machine learnin...
journal_title：Journal of healthcare engineering
pub_type： 杂志文章
doi：10.1155/2019/7463242
更新日期：2019-11-03 00:00:00
abstract：:Current sign-in methods of patrolling security guards mainly comprise signature, image identification, and fingerprint identification; notably, none of these methods indicate the physical and mental conditions of such guards. In particular, when patrolling security guards perform their duties consecutively for a long ...
journal_title：Journal of healthcare engineering
pub_type： 杂志文章
doi：10.1155/2018/6419064
更新日期：2018-11-12 00:00:00
abstract：:Uterine contraction (UC) is an important clinical indictor for monitoring uterine activity. The purpose of this study is to develop a portable electrohysterogram (EHG) recording system (called PregCare) for monitoring UCs with EHG signals. The PregCare consisted of sensors, a signal acquisition device, and a computer ...
journal_title：Journal of healthcare engineering
pub_type： 杂志文章
doi：10.1155/2019/4230157
更新日期：2019-07-01 00:00:00
abstract：:Breast cancer, the most common type of cancer among women in the western world, affects approximately one out of every eight women over their lifetime. In recognition of the high invasiveness of surgical excision and severe side effects of chemical and radiation therapies, increasing efforts are made to seek minimally...
journal_title：Journal of healthcare engineering
pub_type： 杂志文章,评审
doi：10.1260/2040-2295.4.1.67
更新日期：2013-01-01 00:00:00
abstract：:In this work, tunable nonwoven mats based on poly(3-hydroxybutyrate) (PHB) and type I collagen (Coll) were successfully produced by electrospinning. The PHB/Coll weight ratio (fixed at 100/0, 70/30, and 50/50, resp.) was found to control the morphological, thermal, mechanical, and degradation properties of the mats. I...
journal_title：Journal of healthcare engineering
pub_type： 杂志文章
doi：10.1155/2018/6573947
更新日期：2018-04-19 00:00:00
abstract：:In a model of murine ventricular cardiac tissue in vitro, we have studied the inotropic effects of electromagnetic stimulation (frequency, 75 Hz), isoproterenol administration (10 μM), and their combination. In particular, we have performed an image processing analysis to evaluate the kinematics and the dynamics of be...
journal_title：Journal of healthcare engineering
pub_type： 杂志文章
doi：10.1155/2017/4204085
更新日期：2017-01-01 00:00:00
