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https://www.readbyqxmd.com/read/28231511/automated-diagnosis-of-congestive-heart-failure-using-dual-tree-complex-wavelet-transform-and-statistical-features-extracted-from-2s-of-ecg-signals
#1
Vidya K Sudarshan, U Rajendra Acharya, Shu Lih Oh, Muhammad Adam, Jen Hong Tan, Chua Kuang Chua, Kok Poo Chua, Ru San Tan
Identification of alarming features in the electrocardiogram (ECG) signal is extremely significant for the prediction of congestive heart failure (CHF). ECG signal analysis carried out using computer-aided techniques can speed up the diagnosis process and aid in the proper management of CHF patients. Therefore, in this work, dual tree complex wavelets transform (DTCWT)-based methodology is proposed for an automated identification of ECG signals exhibiting CHF from normal. In the experiment, we have performed a DTCWT on ECG segments of 2s duration up to six levels to obtain the coefficients...
February 7, 2017: Computers in Biology and Medicine
https://www.readbyqxmd.com/read/28229254/the-impact-of-post-procedural-complications-on-reimbursement-length-of-stay-and-mechanical-ventilation-among-patients-undergoing-transcatheter-aortic-valve-implantation-in-germany
#2
Klaus Kaier, Holger Reinecke, Huseyin Naci, Lutz Frankenstein, Martin Bode, Werner Vach, Philip Hehn, Andreas Zirlik, Manfred Zehender, Jochen Reinöhl
BACKGROUND: The impact of various post-procedural complications after transcatheter aortic valve implantation (TAVI) on resource use and their consequences in the German reimbursement system has still not been properly quantified. METHODS: In a retrospective observational study, we use data from the German DRG statistic on patient characteristics and in-hospital outcomes of all isolated TAVI procedures in 2013 (N = 9147). The impact of post-procedural complications on reimbursement, length of stay and mechanical ventilation was analyzed using both unadjusted and risk-adjusted linear and logistic regression analyses...
February 22, 2017: European Journal of Health Economics: HEPAC: Health Economics in Prevention and Care
https://www.readbyqxmd.com/read/28227753/statistically-significant-time-varying-neural-connectivity-estimation-using-generalized-partial-directed-coherence
#3
Pedro L C Rodrigues, Luiz A Baccala, Pedro L C Rodrigues, Luiz A Baccala, Pedro L C Rodrigues, Luiz A Baccala
This paper illustrates the effectiveness of generalized partial directed coherence (gPDC) in characterizing time-varying neural connectivity by properly extrapolating its single trial asymptotic statistical results to a multi trial setting. Time-varying estimation is performed with a sliding-window procedure based on the proposal in [1], whereby a time-frequency map of the connectivity between channels is built. The technique is validated on a non-linear toy model generating simulated EEG and then applied to a publicly available real EEG dataset for benchmarking purposes...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227712/a-preliminary-study-of-a-running-speed-based-heart-rate-prediction-during-an-incremental-treadmill-exercise
#4
Dae-Geun Jang, Byung-Hoon Ko, Sub Sunoo, Sang-Seok Nam, Hun-Young Park, Sang-Kon Bae, Dae-Geun Jang, Byung-Hoon Ko, Sub Sunoo, Sang-Seok Nam, Hun-Young Park, Sang-Kon Bae, Byung-Hoon Ko, Sang-Kon Bae, Sub Sunoo, Dae-Geun Jang, Hun-Young Park, Sang-Seok Nam
This preliminary study investigates feasibility of a running speed based heart rate (HR) prediction. It is basically motivated from the assumption that there is a significant relationship between HR and the running speed. In order to verify the assumption, HR and running speed data from 217 subjects of varying aerobic capabilities were simultaneously collected during an incremental treadmill exercise. A running speed was defined as a treadmill speed and its corresponding heart rate was calculated by averaging the last one minute HR values of each session...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226837/a-preliminary-evaluation-of-myoelectrical-energy-distribution-of-the-front-neck-muscles-in-pharyngeal-phase-during-normal-swallowing
#5
Mingxing Zhu, Wanzhang Yang, Oluwarotimi Williams Samuel, Yun Xiang, Jianping Huang, Haiqing Zou, Guanglin Li, Mingxing Zhu, Wanzhang Yang, Oluwarotimi Williams Samuel, Yun Xiang, Jianping Huang, Haiqing Zou, Guanglin Li, Wanzhang Yang, Yun Xiang, Guanglin Li, Haiqing Zou, Jianping Huang, Oluwarotimi Williams Samuel, Mingxing Zhu
Pharyngeal phase is a central hub of swallowing in which food bolus pass through from the oral cavity to the esophageal. Proper understanding of the muscular activities in the pharyngeal phase is useful for assessing swallowing function and the occurrence of dysphagia in humans. In this study, high-density (HD) surface electromyography (sEMG) was used to study the muscular activities in the pharyngeal phase during swallowing tasks involving three healthy male subjects. The root mean square (RMS) of the HD sEMG data was computed by using a series of segmented windows as myoelectrical energy...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28225882/a-miracle-cancer-drug-in-the-era-of-social-media-a-survey-of-brazilian-oncologists-opinions-and-experience-with-phosphoethanolamine
#6
Juliana Florinda M Rêgo, Gilberto Lopes, Rachel P Riechelmann, Cinthya Sternberg, Claudio Ferrari, Gustavo Fernandes
INTRODUCTION: Patients who are treating cancer have often used alternative therapies. In the internet era, information can be broadcasted widely, and this happened with phosphoethanolamine in Brazil, where this substance was claimed by the population to be the "cure for cancer." METHOD: This is a cross-sectional study developed by the Brazilian Society of Clinical Oncology (SBOC). An objectively structured questionnaire was sent by e-mail and SMS to active MDs members of the SBOC...
January 1, 2017: Revista da Associação Médica Brasileira
https://www.readbyqxmd.com/read/28224424/dynamic-characteristic-mechanism-of-atrial-septal-defect-using-real-time-three-dimensional-echocardiography-and-evaluation-of-right-ventricular-functions
#7
Gao-Wa Sharen, Jun Zhang, Chuan Qin, Qing Lv
The dynamic characteristics of the area of the atrial septal defect (ASD) were evaluated using the technique of real-time three-dimensional echocardiography (RT 3DE), the potential factors responsible for the dynamic characteristics of the area of ASD were observed, and the overall and local volume and functions of the patients with ASD were measured. RT 3DE was performed on the 27 normal controls and 28 patients with ASD. Based on the three-dimensional data workstations, the area of ASD was measured at P wave vertex, R wave vertex, T wave starting point, and T wave terminal point and in the T-P section...
February 2017: Journal of Huazhong University of Science and Technology. Medical Sciences
https://www.readbyqxmd.com/read/28223999/factor-analysis-of-myb-gene-expression-and-flavonoid-affecting-petal-color-in-three-crabapple-cultivars
#8
Jie Zhang, Yingying Liu, YuFen Bu, Xi Zhang, Yuncong Yao
Flavonoid biosynthesis has received much attention concerning the structural genes and expression of the associated transcription factors (TFs). In the present study, we examined the gene expression patterns for petals of three colors using a statistical method. Factor analysis was successfully used to examine the expression patterns most present during regulation. The first expression patterns in the white and red petals were clearly demonstrated and have revealed different mechanisms of producing the proper components, whereas that in the pink petals was more complex, requiring factor analysis to supplement the other results...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28221244/hla-amino-acid-polymorphisms-and-kidney-allograft-survival
#9
Malek Kamoun, Keith P McCullough, Martin Maiers, Marcelo A Fernandez Vina, Hongzhe Li, Valerie Teal, Alan B Leichtman, Robert M Merion
BACKGROUND: The association of HLA mismatching with kidney allograft survival has been well established. We examined whether amino acid mismatches at the antigen recognition site of HLA molecules represent independent and incremental risk factors for kidney graft failure (GF) beyond those mismatches assessed at the antigenic (2-digit) specificity. METHODS: Data on 240,024 kidney transplants performed between 1987 and 2009 were obtained from the Scientific Registry of Transplant Recipients...
February 18, 2017: Transplantation
https://www.readbyqxmd.com/read/28220910/chemical-incidents-resulted-in-hazardous-substances-releases-in-the-context-of-human-health-hazards
#10
Anna Pałaszewska-Tkacz, Sławomir Czerczak, Katarzyna Konieczko
OBJECTIVES: The research purpose was to analyze data concerning chemical incidents in Poland collected in 1999-2009 in terms of health hazards. MATERIAL AND METHODS: The data was obtained, using multimodal information technology (IT) system, from chemical incidents reports prepared by rescuers at the scene. The final analysis covered sudden events associated with uncontrolled release of hazardous chemical substances or mixtures, which may potentially lead to human exposure...
February 21, 2017: International Journal of Occupational Medicine and Environmental Health
https://www.readbyqxmd.com/read/28220322/serious-fungal-infections-in-the-philippines
#11
M C R Batac, D Denning
The Philippines is a low middle-income, tropical country in Southeast Asia. Infectious diseases remain the main causes of morbidity, including tuberculosis. AIDS/HIV prevalence is still low at <1%, but is rapidly increasing. Fungal disease surveillance has not been done, and its burden has never been estimated. This becomes more important as the population of immunocompromised patients increases, drawn from patients with AIDS, TB, malignancies, and autoimmune diseases requiring chronic steroid use. Using the methodology of the LIFE program ( www...
February 21, 2017: European Journal of Clinical Microbiology & Infectious Diseases
https://www.readbyqxmd.com/read/28218359/diagnostic-value-of-smoothelin-and-vimentin-in-differentiating-muscularis-propria-from-muscularis-mucosa-of-bladder-carcinoma
#12
Noha Elkady, Asmaa Gaber Abdou, Mona Kandil, Noha Ghanem
BACKGROUND: Determination of the extent of involvement or pathological staging is one of the requirements for adequate evaluation of bladder cancer specimens. Therefore, the differentiation between MP and MM is essential for proper treatment and avoiding over or under staging. AIM: The present study aimed at evaluation of diagnostic value of smoothelin and vimentin expression both singly and in combination for differentiation between MM and MP. METHODS: This study was carried out on 59 cystectomy specimens of primary bladder carcinoma and eleven cystoscopic biopsies for non-neoplastic bladder lesions (cystitis)...
February 11, 2017: International Journal of Biological Markers
https://www.readbyqxmd.com/read/28218346/usefulness-of-clearance-parametric-images-in-detection-of-regional-renal-parenchyma-dysfunction
#13
Jacek Kuśmierek, Małgorzata Bieńkiewicz, Tomasz Konecki, Marian Surma, Marek Sosnowski, Anna Płachcińska
BACKGROUND: The aim of the study was to examine whether parametric clearance images (PAR) enhance diagnostic potential of a dynamic renal scintigraphy with detection of local dysfunction of kidneys, on a model of kidneys after treatment with extracorporeal shock wave lithotripsy (ESWL), MATERIAL AND METHODS: Kidneys after ESWL were accepted as a proper model for the implementation of this objective because of the previously proven damaging effect of a shock wave on renal parenchyma and known region of ESWL application...
2017: Nuclear Medicine Review. Central & Eastern Europe
https://www.readbyqxmd.com/read/28217562/no-holes-transpectoral-tenodesis-technique-vs-tenotomy-of-the-long-head-of-the-biceps-brachii
#14
Enrico Gervasi, Enrico Sebastiani, Enrico Cautero
BACKGROUND: There is no univocal consensus regarding Long Head of the Biceps (LHB) best treatment between tenotomy and tenodesis. There is no consensus regarding the best location to perform the tenodesis. The LHB tenodesis performed by the proximal tendon excision as first step can miss the proper tension to the muscle belly. Fixations proximal to the pectoralis major can lead to groove pain. This study aims to test the efficacy of a new LHB tenodesis technique by comparing its results with the tenotomy...
October 2016: Muscles, Ligaments and Tendons Journal
https://www.readbyqxmd.com/read/28217493/outcome-and-preferences-in-male-to-female-subjects-with-gender-dysphoria-experience-from-eastern-india
#15
Anirban Majumder, Debmalya Sanyal
CONTEXT: Gender dysphoria (GD) is an increasingly recognized medical condition in India, and little scientific data on treatment outcomes are available. AIMS: Our objective is to study the therapeutic options including psychotherapy, hormone, and surgical treatments used for alleviating GD in male-to-female (MTF) transgender subjects in Eastern India. SUBJECTS AND METHODS: This is a retrospective study of treatment preferences and outcome in 55 MTF transgender subjects who were presented to the endocrine clinic...
January 2017: Indian Journal of Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28208736/time-elastic-generative-model-for-acceleration-time-series-in-human-activity-recognition
#16
Mario Munoz-Organero, Ramona Ruiz-Blazquez
Body-worn sensors in general and accelerometers in particular have been widely used in order to detect human movements and activities. The execution of each type of movement by each particular individual generates sequences of time series of sensed data from which specific movement related patterns can be assessed. Several machine learning algorithms have been used over windowed segments of sensed data in order to detect such patterns in activity recognition based on intermediate features (either hand-crafted or automatically learned from data)...
February 8, 2017: Sensors
https://www.readbyqxmd.com/read/28207236/using-roc-curves-to-optimize-discovery-based-software-with-comprehensive-two-dimensional-gas-chromatography-with-time-of-flight-mass-spectrometry
#17
Brooke C Reaser, Bob W Wright, Robert E Synovec
We report a quantitative approach to optimize implementation of discovery-based software for comprehensive two-dimensional gas chromatography coupled with time-of-flight mass spectrometry (GC × GC - TOFMS). The software performs a tile-based Fisher ratio (F-ratio) analysis, and facilitates a supervised non-targeted analysis based upon the experimental design to aid in the discovery of analytes with statistically different variances between sample classes. The quantitative approach for software optimization uses receiver operating characteristic (ROC) curves...
February 16, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28205308/fast-and-robust-multimodal-image-registration-using-a-local-derivative-pattern
#18
Dongsheng Jiang, Yonghong Shi, Xinrong Chen, Manning Wang, Zhijian Song
PURPOSE: Deformable multimodal image registration, which can benefit radiotherapy and image guided surgery by providing complementary information, remains a challenging task in the medical image analysis field due to the difficulty of defining a proper similarity measure. This article presents a novel, robust and fast binary descriptor, the discriminative local derivative pattern (dLDP), which is able to encode images of different modalities into similar image representations. METHODS: dLDP calculates a binary string for each voxel according to the pattern of intensity derivatives in its neighborhood...
February 2017: Medical Physics
https://www.readbyqxmd.com/read/28203598/treatment-of-ulnar-collateral-ligament-tears-of-the-elbow-is-repair-a-viable-option
#19
Brandon J Erickson, Bernard R Bach, Nikhil N Verma, Charles A Bush-Joseph, Anthony A Romeo
BACKGROUND: Ulnar collateral ligament (UCL) tears have become common, and UCL reconstruction (UCLR) is currently the preferred surgical treatment method for treating UCL tears. PURPOSE/HYPOTHESIS: The purpose of this study was to review the literature surrounding UCL repair and determine the viability of new repair techniques for treatment of UCL tears. We hypothesized that UCL repair techniques will provide comparable results to UCLR for treatment of UCL tears...
January 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28203588/return-to-play-and-prior-performance-in-major-league-baseball-pitchers-after-repair-of-superior-labral-anterior-posterior-tears
#20
Ryan Smith, Daniel J Lombardo, Graysen R Petersen-Fitts, Charles Frank, Troy Tenbrunsel, Gannon Curtis, James Whaley, Vani J Sabesan
BACKGROUND: The published return-to-play (RTP) rates for Major League Baseball (MLB) pitchers who have undergone surgical repair of superior labrum anterior-posterior (SLAP) tears vary widely and are generally accepted to be lower in the subset of competitive throwers. The efficacy of surgical treatment for MLB players is largely unknown. PURPOSE: To examine the RTP rate and performance of MLB pitchers who have undergone SLAP tear repair between 2003 and 2010. STUDY DESIGN: Descriptive epidemiological study...
December 2016: Orthopaedic Journal of Sports Medicine
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