The eigenspace generalized sidelobe canceller (EGSC) beamformer combined with a signal-to-noise ratio (SNR) dependent coherence factor (CF) is suggested for coherent plane wave compounding (PW) imaging. Conven...
Authors: Aácio José Zimbico, Diogo Watchel Granado, Fabio Kurt Schneider, Joaquim Miguel Maia, Amauri Amorin Assef, Nivaldo Schiefler Jr. and Eduardo Tavares Costa
To improve accuracy of IOLMaster (Carl Zeiss, Jena, Germany) in corneal power measurement after myopic excimer corneal refractive surgery (MECRS) using multivariate polynomial analysis (MPA).
Authors: Michele Lanza, Robert Koprowski and Mario Bifani Sconocchia
For the functional control of prosthetic hand, it is insufficient to obtain only the motion pattern information. As far as practicality is concerned, the control of the prosthetic hand force is indispensable. ...
Authors: Chuanjiang Li, Jian Ren, Huaiqi Huang, Bin Wang, Yanfei Zhu and Huosheng Hu
There are two major challenges in automated heart sound analysis: segmentation and classification. An efficient segmentation is capable of providing valuable diagnostic information of patients. In addition, it...
For practical straight-line scanning in photoacoustic imaging (PAI), serious artifacts caused by missing data will occur. Traditional total variation (TV)-based algorithms fail to obtain satisfactory results, ...
The area of application of electronic stethoscopes in medical diagnostics covers the scope of usability of the acoustic stethoscopes, from which they have evolved and which they could potentially replace. Howe...
One of the most promising applications for electroencephalogram (EEG)-based brain computer interface is for stroke rehabilitation. Implemented as a standalone motor imagery (MI) training system or as part of a...
Authors: Arpa Suwannarat, Setha Pan-ngum and Pasin Israsena
The number and variety of eHealth services for adults and older adults who use hearing aids (HAs) are growing rapidly. This area holds promise to increase cost-efficiency, enable better access to care, and imp...
Authors: Alessia Paglialonga, Annette Cleveland Nielsen, Elisabeth Ingo, Caitlin Barr and Ariane Laplante-Lévesque
Wound healing of retinal pigment epithelium (RPE) is a complex process that may take place in common age-related macular degeneration eye disease. The purpose of this study was to evaluate whether wounding and...
Authors: Amna E. Abu Khamidakh, Alejandra Rodriguez-Martinez, Kai Kaarniranta, Anne Kallioniemi, Heli Skottman, Jari Hyttinen and Kati Juuti-Uusitalo
Herein, an algorithm that can be used in wearable health monitoring devices to estimate metabolic equivalents (METs) based on physical activity intensity data, particularly for certain activities in daily life...
We study the estimation of breathing frequency (BF) derived from wearable single-channel ECG signal in the context of mobile daily life activities. Although respiration effects on heart rate variability and EC...
Authors: Iman Alikhani, Kai Noponen, Arto Hautala, Rahel Ammann and Tapio Seppänen
Assisted gait with forearm crutches is frequently performed during the recovery of musculoskeletal injuries of the lower limb. The amount of body weight applied to the crutch or crutches depends on the patholo...
Authors: Carmen Ridao-Fernández, Gema Chamorro-Moriana and Joaquín Ojeda
An osteon consists of a multi-layered bone matrix and interstitial fluid flow in the lacunar–canalicular system. Loading-induced interstitial fluid flow in the lacunar–canalicular system is critical for osteoc...
Authors: Yaogeng Chen, Wenshuai Wang, Shenghu Ding, Xu Wang, Qun Chen and Xing Li
Early and automatic detection of pulmonary nodules from CT lung screening is the prerequisite for precise management of lung cancer. However, a large number of false positives appear in order to increase the s...
Mitral valve failure can require repair or replacement. Replacement bioprosthetic valves are treated with glutaraldehyde prior to implantation. The aim of this study was to determine the changes in mechanical ...
Authors: M. Constable, H. E. Burton, B. M. Lawless, V. Gramigna, K. G. Buchan and D. M. Espino
In ultrasound plane wave imaging (PWI), image details are often blurred by the off-axis artefacts resulting from high sidelobe. Recently plane wave compounding (PWC) is proposed as a promising technique for th...
Authors: Wei Guo, Yuanyuan Wang, Guoqing Wu and Jinhua Yu
To research the possibility of designing customized 3D printing fingerboard to apply to the limb rehabilitation of cerebral stroke patients as well as the prevention and treatment of finger spasm, through 3D p...
Authors: Kai Wang, Yiting Shi, Wen He, Jing Yuan, Yuan Li, Xiaolin Pan and Cuilian Zhao
Rehabilitation robots can provide intensive physical training after stroke. However, variations of the rehabilitation effects in translation from well-controlled research studies to clinical services have not ...
Authors: Yanhuan Huang, Will Poyan Lai, Qiuyang Qian, Xiaoling Hu, Eric W. C. Tam and Yongping Zheng
Deep brain stimulation (DBS) has shown wide clinical applications for treating various disorders of central nervous system. High frequency stimulation (HFS) of pulses with a constant intensity and a constant f...
Authors: Ziyan Cai, Zhouyan Feng, Hanhan Hu, Na Hu and Xuefeng Wei
The inverse problem in electrophysiology consists of the accurate estimation of the intracardiac electrical sources from a reduced set of electrodes at short distances and from outside the heart. This estimati...
Authors: Raúl Caulier-Cisterna, Sergio Muñoz-Romero, Margarita Sanromán-Junquera, Arcadi García-Alberola and José Luis Rojo-Álvarez
Minocycline has been widely used in central nervous system disease. However, the effect of minocycline on the repairing of nerve fibers around dental implants had not been previously investigated. The aim of t...
Authors: Lan A, Wenzhou Xu, Jinghui Zhao, Chunyan Li, Manlin Qi, Xue Li, Lin Wang and Yanmin Zhou
In this paper we aimed to investigate the neovascularization and biodegradation of the silk fibroin in vivo using multiple modes ultrasound, including two-dimensional, three-dimensional and contrast-enhanced u...
Authors: Shouqiang Li, Dandan Yu, Huan Ji, Baocun Zhao, Lili Ji and Xiaoping Leng
Accurate nuclei detection and segmentation in histological images is essential for many clinical purposes. While manual annotations are time-consuming and operator-dependent, full automated segmentation remain...
The crossed limbs stent graft technique is regularly employed to treat abdominal aortic aneurysm patients with unfavorable aneurysm necks or widely splayed common iliac arteries. This article numerically evalu...
To reduce the risk of patient damage and complications during the cardiopulmonary resuscitation (CPR) process in emergency situations, it is necessary to monitor the status of the patient and the quality of CP...
Authors: Seong Wook Choi, Do Yeon Lee and Kyoung Won Nam
Point of care ultrasonography has been the focus of extensive research over the past few decades. Miniaturised, wireless systems have been envisaged for new application areas, such as capsule endoscopy, implan...
Authors: Graham Peyton, Martyn G. Boutelle and Emmanuel M. Drakakis
Thyroid imaging reporting and data system (TIRADS) is the assessment of a risk stratification of thyroid nodules, usually using a score. However, there is no consensus as to the version of TIRADS for reporting...
Authors: Yan Zhuang, Cheng Li, Zhan Hua, Ke Chen and Jiang Li Lin
Non-invasive continuous blood pressure monitors are of great interest to the medical community due to their value in hypertension
management. Recently, studies have shown the potential of pulse pressure as a ...
Authors: Joonnyong Lee, JangJay Sohn, Jonghyun Park, SeungMan Yang, Saram Lee and Hee Chan Kim
The efficiency of gene electrotransfer, an electroporation-based method for delivery of pDNA into target tissues, depends on several processes. The method relies on application of electric pulses with appropri...
Although studies on the relation between arrhythmias and the action potential duration (APD) have been carried out, most of them are based only on electrophysiological factors of the heart and lack experiments...
In diffusion-weighted magnetic resonance imaging (DWI) using single-shot echo planar imaging (ss-EPI), both reduced field-of-view (FOV) excitation and sensitivity encoding (SENSE) alone can increase in-plane r...
Authors: Jisu Hu, Ming Li, Yakang Dai, Chen Geng, Baotong Tong, Zhiyong Zhou, Xue Liang, Wen Yang and Bing Zhang
To investigate the effect of additional semiautomatic intermittent pneumatic compression device (IPCD) in the prevention of deep vein thrombosis (DVT) of lower extremity in these patients undergoing major orth...
Authors: Dapeng Wang, Fuqin Bao, Qiang Li, Yugang Teng and Jianjun Li
Rician noise, bias fields and blur are the common distortions that degrade MRI images during acquisition. Blur is unique in comparison to Rician noise and bias fields because it can be introduced into an image...
Authors: Michael E. Osadebey, Marius Pedersen, Douglas L. Arnold and Katrina E. Wendel-Mitoraj
The pathological or physiological changes of a crystalline lens directly affect the eye accommodation and transmittance, and then they increase the risk of presbyopia and cataracts for people in the middle and...
There is a need for providing sensory feedback for myoelectric prosthesis users. Providing tactile feedback can improve object manipulation abilities, enhance the perceptual embodiment of myoelectric prosthese...
Authors: Huaiqi Huang, Claudio Bruschini, Christian Antfolk, Christian Enz, Tao Li, Jörn Justiz and Volker M. Koch
Intra-body communication (IBC) is one of the highlights in studies of body area networks. The existing IBC studies mainly focus on human channel characteristics of the physical layer, transceiver design for th...
Authors: Yue-Ming Gao, Heng-fei Zhang, Shi Lin, Rui-Xin Jiang, Zhi-Ying Chen, Željka Lučev Vasić, Mang-I Vai, Min Du, Mario Cifrek and Sio-Hang Pun
Air ions are molecules of air that have become ionized—that is, they have either lost or gained an electrical charge. Past speculation has suggested that exposure to positive air ions may be harmful to one’s h...
Authors: William H. Bailey, Amy Lavin Williams and Megan Jeanne Leonhard
With the introduction of Flat Panel Detector technology, cone-beam CT (CBCT) has become a novel image modality, and widely applied in clinical practices. C-arm mounted CBCT has shown extra suitability in image...
Authors: Ken Chen, Cheng Wang, Jing Xiong and Yaoqin Xie
Ultrashort echo time (UTE) sequences play a key role in imaging and quantifying short T2 species. However, almost all of the relevant studies was conducted at relatively high fields. The purpose of this work w...
To utilize cervical auscultation as a means of screening for risk of dysphagia, we must first determine how the signal differs between healthy subjects and subjects with swallowing disorders.
Authors: Joshua M. Dudik, Atsuko Kurosu, James L. Coyle and Ervin Sejdić
Computational modeling of cardiovascular flow is a growing and useful field, but such simulations usually require the researcher to guess the flow’s inlet and outlet conditions since they are difficult and exp...
Authors: Sudharsan Madhavan and Erica M. Cherry Kemmerling
The paper presents an approach and computer-aided method of numerical evaluation of the quality of porous membranes used as scaffolds for cultivation of chondrocytes in regeneration of biological tissues.
Authors: Juliusz L. Kulikowski, Malgorzata Przytulska and Andrzej Chwojnowski
Fractional flow reverse (FFR) is the gold standard assessment of the hemodynamic significance of coronary stenoses. However, it requires the catheterization of the coronary artery to determine the pressure wav...
Authors: R. Agujetas, M. R. González-Fernández, J. M. Nogales-Asensio and J. M. Montanero
Liver segmentation in computed tomography is required in many clinical applications. The segmentation methods used can be classified according to a number of criteria. One important criterion for method select...
In longitudinal electroencephalography (EEG) studies, repeatable electrode positioning is essential for reliable EEG assessment. Conventional methods use anatomical landmarks as fiducial locations for the elec...
Authors: Chanho Song, Sangseo Jeon, Seongpung Lee, Ho-Gun Ha, Jonghyun Kim and Jaesung Hong
In this paper, we aim to investigate the effect of computer-aided triage system, which is implemented for the health checkup of lung lesions involving tens of thousands of chest X-rays (CXRs) that are required...
Authors: Changmiao Wang, Ahmed Elazab, Fucang Jia, Jianhuang Wu and Qingmao Hu
Although it is important to analyze the hemodynamic factors related to the right ventricle (RV) after left ventricular assist device (LVAD) implantation, previous studies have focused only on the alteration of...
Authors: Jun I. K. Park, Aulia Khamas Heikhmakhtiar, Chang Hyun Kim, Yoo Seok Kim, Seong Wook Choi, Kwang Soup Song and Ki Moo Lim
Worldwide, at least 200 million people are affected by peripheral vascular diseases (PVDs), including peripheral arterial disease (PAD), chronic venous insufficiency (CVI) and deep vein thrombosis (DVT). The h...
Authors: Elham Shabani Varaki, Gaetano D. Gargiulo, Stefania Penkala and Paul P. Breen
With spectral methods, noninvasive determination of blood hyperviscosity in vivo is very potential and meaningful in clinical diagnosis. In this study, 67 male subjects (41 health, and 26 hyperviscosity accord...
Authors: Ming Liu, Jing Zhao, XiaoZuo Lu, Gang Li, Taixia Wu and LiFu Zhang
