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 and background, and local standard deviation. To avoid the wrong detection of vitreous opacity as retinal structures, a morphological method is proposed to detect and remove such lesions from retinal visible structure segmentation. Based on the extracted features, a decision tree is trained to classify retinal images into five grades of blurriness. The proposed approach was tested using 1355 clinical retinal images, and the accuracies of two-class classification and five-grade grading compared with that of manual grading are 92.8% and 81.1%, respectively. The kappa value between automatic grading and manual grading is 0.74 in five-grade grading, in which both variance and P value are less than 0.001. Experimental results show that the grading difference between automatic grading and manual grading is all within 1 grade, which is much improvement compared with that of other available methods. The proposed grading method provides a universal measure of cataract severity and can facilitate the decision of cataract surgery.
journal_name
J Healthc Engjournal_title
Journal of healthcare engineeringauthors
Xiong L,Li H,Xu Ldoi
10.1155/2017/5645498subject
Has Abstractpub_date
2017-01-01 00:00:00pages
5645498eissn
2040-2295issn
2040-2309journal_volume
2017pub_type
杂志文章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::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::Orthodontic tooth movement (OTM) is the result of region-specific bone modeling under a load. Quantification of this change in the alveolar bone around a tooth is a basic requirement to understand the mechanism of orthodontics. The purpose of this study was to quantify subregional alveolar bone changes during orthodon...
journal_title:Journal of healthcare engineering
pub_type: 杂志文章
doi:10.1155/2018/1651097
更新日期:2018-10-01 00:00:00
abstract::According to recent surveys, the current ways of diabetics trying to estimate their insulin need based on experience and conjecture are sometimes inefficient in practice. This paper proposes a prediction algorithm and presents the validation of the model in outpatient care. The algorithm consists of two state-of-the-a...
journal_title:Journal of healthcare engineering
pub_type: 杂志文章
doi:10.1155/2019/8605206
更新日期:2019-01-10 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::Overweight and obesity increase risks of knee osteoarthritis, which is a major cause of disability. Severe knee osteoarthritis can be treated by knee arthroplasty. Total knee arthroplasty has been used in overweight and obese patients; however, clinical reports showed that the outcome of this group of patients was not...
journal_title:Journal of healthcare engineering
pub_type: 杂志文章
doi:10.1155/2017/1496379
更新日期:2017-01-01 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::The power of exercise-induced T-wave alternans (TWA) to predict the occurrence of ventricular arrhythmias was evaluated in 67 patients with an implanted cardiac defibrillator (ICD). During the 4-year follow-up, electrocardiographic (ECG) tracings were recorded in a bicycle ergometer test with increasing workload rangi...
journal_title:Journal of healthcare engineering
pub_type: 杂志文章
doi:10.1260/2040-2295.4.2.167
更新日期:2013-01-01 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
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::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::Automatic segmentation and three-dimensional reconstruction of the liver is important for liver disease diagnosis and surgical treatment. However, the shape of the imaged 2D liver in each CT image changes dramatically across the slices. In all slices, the imaged 2D liver is connected with other organs, and the connect...
journal_title:Journal of healthcare engineering
pub_type: 杂志文章
doi:10.1155/2018/6797102
更新日期:2018-11-18 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::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::We establish a novel mathematical model to describe and analyze pH levels in the vicinity of poly(N-vinylcaprolactam-co-acetoacetoxyethyl methacrylate-co-N-vinylimidazole) (VCL/AAEM/VIm) microgel-functionalized polymers during biodegradation. Biodegradable polymers, especially aliphatic polyesters (polylactide/polygly...
journal_title:Journal of healthcare engineering
pub_type: 杂志文章
doi:10.1155/2016/8125416
更新日期:2016-01-01 00:00:00
abstract::Numerous EEG-based brain-computer interface (BCI) systems that are being developed focus on novel feature extraction algorithms, classification methods and combining existing approaches to create hybrid BCIs. Several recent studies demonstrated various advantages of hybrid BCI systems in terms of an improved accuracy ...
journal_title:Journal of healthcare engineering
pub_type: 杂志文章
doi:10.1155/2017/3789386
更新日期:2017-01-01 00:00:00
abstract::MicroRNA (miRNA) binding is primarily based on sequence, but structure-specific binding is also possible. Various prediction algorithms have been developed for predicting miRNA target genes; the results, however, have relatively high levels of false positives, and the degree of overlap between predicted targets from d...
journal_title:Journal of healthcare engineering
pub_type: 杂志文章
doi:10.1155/2018/4932904
更新日期:2018-09-12 00:00:00
abstract::Electrode configuration is an important issue in the continuous measurement of respiration using impedance pneumography (IP). The robust configuration is usually confirmed by comparing the amplitude of the IP signals acquired with different electrode configurations, while the relative change in waveform and the effect...
journal_title:Journal of healthcare engineering
pub_type: 杂志文章
doi:10.1260/2040-2295.5.3.313
更新日期:2014-01-01 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::Since the 20th century, cancer has become one of the main diseases threatening human health. Liver cancer is a malignant tumor with extremely high clinical morbidity and fatality rate and easy recurrence after surgery. Research on the postoperative recurrence time and recurrence location of patients with liver cancer ...
journal_title:Journal of healthcare engineering
pub_type: 杂志文章
doi:10.1155/2021/6658776
更新日期:2021-01-12 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: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 paper investigates the measurement of fat-free mass (FFM) by bioimpedance using foot-to-foot impedancemeters (FFI) with plantar electrodes measuring the foot-to-foot resistance R34 and hand-to-foot medical impedancemeters. FFM measurements were compared with corresponding data using Dual X-ray absorptiometry (DXA...
journal_title:Journal of healthcare engineering
pub_type: 杂志文章
doi:10.1260/2040-2295.5.2.123
更新日期:2014-01-01 00:00:00
abstract::The feasibility of a novel system to reliably estimate the normalized central blood pressure (CBPN) from the radial photoplethysmogram (PPG) is investigated. Right-wrist radial blood pressure and left-wrist PPG were simultaneously recorded in five different days. An industry-standard applanation tonometer was employed...
journal_title:Journal of healthcare engineering
pub_type: 杂志文章
doi:10.1260/2040-2295.6.1.121
更新日期:2015-01-01 00:00:00
abstract:Background:With the outbreak of COVID-19, large-scale telemedicine applications can play an important role in the epidemic areas or less developed areas. However, the transmission of hundreds of megabytes of Sectional Medical Images (SMIs) from hospital's Intranet to the Internet has the problems of efficiency, cost, a...
journal_title:Journal of healthcare engineering
pub_type: 杂志文章
doi:10.1155/2020/8838390
更新日期:2020-12-04 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 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::Claustrophobia is an anxiety disorder characterized by the fear of enclosed spaces. Although medication treatment can effectively control symptoms, the effects quickly disappear once medication is discontinued. Many studies have shown that combining psychotherapy and medication is more efficacious than solely using me...
journal_title:Journal of healthcare engineering
pub_type: 杂志文章
doi:10.1155/2018/6357351
更新日期:2018-11-25 00:00:00
abstract::Atrial fibrillation (AF) is a serious cardiovascular disease with the phenomenon of beating irregularly. It is the major cause of variety of heart diseases, such as myocardial infarction. Automatic AF beat detection is still a challenging task which needs further exploration. A new framework, which combines modified f...
journal_title:Journal of healthcare engineering
pub_type: 杂志文章
doi:10.1155/2018/2102918
更新日期:2018-07-02 00:00:00
abstract::Measuring the physiological functions of the human body in a noncontact manner through walls is useful for healthcare, security, and surveillance. And radar technology can be used for this purpose. In this paper, a new method for detecting the human heartbeat using ultra wideband (UWB) impulse radar, which has advanta...
journal_title:Journal of healthcare engineering
pub_type: 杂志文章
doi:10.1155/2018/4832605
更新日期:2018-04-01 00:00:00