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
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
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
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
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
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
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
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
Peripheral ECMO is an effective cardiopulmonary support in clinical. The perfusion level could directly influence the performances and complications. However, there are few studies on the effects of the perfus...
Authors: Kaiyun Gu, Zhe Zhang, Bin Gao, Yu Chang and Feng Wan
The use of miniaturized magneto-inertial measurement units (MIMUs) allows for an objective evaluation of gait and a quantitative assessment of clinical outcomes. Spatial and temporal parameters are generally r...
Authors: Matilde Bertoli, Andrea Cereatti, Diana Trojaniello, Laura Avanzino, Elisa Pelosin, Silvia Del Din, Lynn Rochester, Pieter Ginis, Esther M. J. Bekkers, Anat Mirelman, Jeffrey M. Hausdorff and Ugo Della Croce
The occurrence of T-wave alternans in electrocardiographic signals was recently linked to susceptibility to ventricular arrhythmias and sudden cardiac death. Thus, by detecting and comprehending the origins of...
Authors: D. Janusek, J. Svehlikova, J. Zelinka, W. Weigl, R. Zaczek, G. Opolski, M. Tysler and R. Maniewski
Long-term electrocardiogram (ECG) is one of the important diagnostic assistant approaches in capturing intermittent cardiac arrhythmias. Combination of miniaturized wearable holters and healthcare platforms en...
Authors: Xiaomao Fan, Qihang Yao, Ye Li, Runge Chen and Yunpeng Cai
The electroencephalogram (EEG) signal represents a subject’s specific brain activity patterns and is considered as an ideal biometric given its superior invisibility, non-clonality, and non-coercion. In order ...
Authors: Qunjian Wu, Bin Yan, Ying Zeng, Chi Zhang and Li Tong
With the emergence of long-term electrocardiogram (ECG) recordings that extend several days beyond the typical 24–48 h, the development of new tools to measure heart rate variability (HRV) and QT variability i...
Hemodynamic information including peak systolic pressure (PSP) and peak systolic velocity (PSV) carry an important role in evaluation and diagnosis of congenital heart disease (CHD). Since MDCTA cannot evaluat...
Authors: Yulei Zhu, Rui Chen, Yu-Hsiang Juan, He Li, Jingjing Wang, Zhuliang Yu and Hui Liu
Modelling and simulation may become clinically applicable tools for detailed evaluation of the cardiovascular system and clinical decision-making to guide therapeutic intervention. Models based on pressure–vol...
Authors: Massimo Capoccia, Silvia Marconi, Sanjeet Avtaar Singh, Domenico M. Pisanelli and Claudio De Lazzari
Impairments in proprioceptive mechanism with aging has been observed and associated with fall risk. The purpose of the current study was to assess proprioceptive deficits among high fall risk individuals in co...
Authors: Nima Toosizadeh, Hossein Ehsani, Marco Miramonte and Jane Mohler
Calcaneal fractures account for around 2% of all fractures and most of them are intra-articular fractures. Many implants have been used in the fixation of calcaneal fractures, but their biomechanical stability...
Authors: Ming Ni, Jiong Mei, Kun Li, Wenxin Niu and Ming Zhang
Diagnosis of Alzheimer’s disease (AD) is very important, and MRI is an effective imaging mode of Alzheimer’s disease. There are many existing studies on the diagnosis of Alzheimer’s disease based on MRI data. ...
Authors: Xiaoheng Tan, Yuchuan Liu, Yongming Li, Pin Wang, Xiaoping Zeng, Fang Yan and Xinke Li
The association between repetitive hip moment impulse and the progression of hip osteoarthritis is a recently recognized area of study. A sit-to-stand movement is essential for daily life and requires hip exte...
Authors: Takuma Inai, Tomoya Takabayashi, Mutsuaki Edama and Masayoshi Kubo
Proximal humerus fractures are the third most common in the human body but their management remains controversial. Open reduction and internal fixation with plates is one of the leading modes of operative trea...
Neuroinflammation is primarily characterized by overexpression of proinflammatory mediators produced by glial activation or immune cell infiltration. Several kinases have been shown to be critical mediators in...
Authors: Chong Ning, Hui-Min David Wang, Rong Gao, Yu-Chia Chang, Fengqing Hu, Xianjun Meng and Shi-Ying Huang
Radionuclide-excited luminescence imaging is an optical radionuclide imaging strategy to reveal the distributions of radioluminescent nanophosphors (RLNPs) inside small animals, which uses radioluminescence em...
Authors: Xuanxuan Zhang, Shouping Zhu, Yang Li, Yonghua Zhan, Xueli Chen, Fei Kang, Jing Wang and Xu Cao
Although accurate modeling of the thermal performance of irrigated-tip electrodes in radiofrequency cardiac ablation requires the solution of a triple coupled problem involving simultaneous electrical conducti...
Authors: Ana González-Suárez, Juan J. Pérez and Enrique Berjano
OpenSim musculoskeletal models provide an accurate simulation environment that eases limitations of in vivo and in vitro studies. In this work, a biomechanical knee model was formulated with femoral articular ...
Authors: M. Marieswaran, Arnab Sikidar, Anu Goel, Deepak Joshi and Dinesh Kalyanasundaram
With the development of versatile magnetic resonance acquisition techniques there arises a need for more advanced imaging simulation tools to enable adequate image appearance prediction, measurement sequence d...
Authors: Artur Klepaczko, Piotr Szczypiński, Michał Strzelecki and Ludomir Stefańczyk
There are many situations where the skin and underlying soft tissues are compromised by mechanical loading in the form or pressure, or pressure in combination with shear. If sustained, this can lead to damage ...
Noninvasive magnetic resonance thermometry (MRT) at low-field using proton resonance frequency shift (PRFS) is a promising technique for monitoring ablation temperature, since low-field MR scanners with open-c...
Wearable textile electrodes for the detection of biopotentials are a promising tool for the monitoring and early diagnosis of chronic diseases. We present a comparative study of the electrical characteristics ...
Authors: Reinel Castrillón, Jairo J. Pérez and Henry Andrade-Caicedo
Accurately solving the electroencephalography (EEG) forward problem is crucial for precise EEG source analysis. Previous studies have shown that the use of multicompartment head models in combination with the ...
Authors: Johannes Vorwerk, Robert Oostenveld, Maria Carla Piastra, Lilla Magyari and Carsten H. Wolters
Accurate functional diagnosis of coronary stenosis is vital for decision making in coronary revascularization. With recent advances in computational fluid dynamics (CFD), fractional flow reserve (FFR) can be d...
Authors: Xinzhou Xie, Minwen Zheng, Didi Wen, Yabing Li and Songyun Xie
The physiological and hemodynamic features of bridging veins involve wall shear stress (WSS) of the cerebral venous system. Based on the data of cadavers and computational fluid dynamics software pack, the hem...
This study aimed to investigate the influence of injection rates of calibrating standard solution
on monitoring pulse indicator continuous cardiac output (PICCO, made in Germany), and thereby to provide signi...
Authors: Chen Shu-Lan, Lan Fang-Chen, Du Zhen-Shuang, Xu Ya-Ping, Zhao Hui-Ming, Zeng Cui-Ping and Miao Yu
Camera-based photoplethysmography (cbPPG) is a measurement technique which enables remote vital sign monitoring by using cameras. To obtain valid plethysmograms, proper regions of interest (ROIs) have to be se...
Authors: Alexander Trumpp, Johannes Lohr, Daniel Wedekind, Martin Schmidt, Matthias Burghardt, Axel R. Heller, Hagen Malberg and Sebastian Zaunseder
Schizophrenia is a clinical syndrome, and its causes have not been well determined. The objective of this study was to investigate the alteration of brain functional connectivity between schizophrenia and heal...
Cerebrovascular events are frequently associated with hemodynamic disturbance caused by internal carotid artery (ICA) stenosis. It is challenging to determine the ischemia-related carotid stenosis during the i...
Authors: Dong Zhang, Pengcheng Xu, Hongyu Qiao, Xin Liu, Liangping Luo, Wenhua Huang, Heye Zhang and Changzheng Shi
Many studies have demonstrated that the geometry of the carotid bifurcation enables prediction of blood flow variation associated with atherosclerotic plaque formation. The phase angle between the arterial wal...
Authors: Lili Niu, Xiliang Zhu, Min Pan, Abbott Derek, Lisheng Xu, Long Meng and Hairong Zheng
The present study contrasts the accuracy of different reconstructed models with distinctive segmentation methods performed by various experts. Seven research groups reconstructed nine 3D models of one human fe...
Authors: Ehsan Soodmand, Daniel Kluess, Patrick A. Varady, Robert Cichon, Michael Schwarze, Dominic Gehweiler, Frank Niemeyer, Dieter Pahr and Matthias Woiczinski
Intracortical brain–machine interfaces (BMIs) harness movement information by sensing neuronal activities using chronic microelectrode implants to restore lost functions to patients with paralysis. However, ne...
Authors: Min-Ki Kim, Jeong-woo Sohn, Bongsoo Lee and Sung-Phil Kim
Most of the objective and quantitative methods proposed for spasticity measurement are not suitable for clinical application, and methods for surface electromyography (sEMG) signal processing are mainly limite...
Authors: Baohua Hu, Xiufeng Zhang, Jingsong Mu, Ming Wu and Yong Wang
