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Automated PD

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https://www.readbyqxmd.com/read/28433601/volumetric-versus-unidimensional-measures-of-metastatic-colorectal-cancer-in-assessing-disease-response
#1
Meghan G Lubner, Nicholas Stabo, Sam J Lubner, Alejandro Munoz Del Rio, Chihwa Song, Perry J Pickhardt
INTRODUCTION: The purpose of this study was to compare unidimensional (1D/linear) and volumetric (3D) measures of metastatic colorectal cancer (mCRC) at computed tomography (CT) for predicting clinical outcome. PATIENTS AND METHODS: Analysis of CT images in 105 patients (mean age, 59 years; range, 25-81 years; 45 women, 60 men) receiving treatment for mCRC was performed. Both unidimensional and volumetric measures were obtained on index lesions at 3 time points (baseline/midpoint/post-therapy; mean interval, 4...
March 27, 2017: Clinical Colorectal Cancer
https://www.readbyqxmd.com/read/28366347/sleep-disturbance-in-pediatric-patients-on-automated-peritoneal-dialysis
#2
Cláudia Gomes, Lia Oliveira, Rosário Ferreira, Carla Simão
OBJECTIVE: There are few reports describing sleep disturbance (SD) in children on automated peritoneal dialysis (APD), and they are mostly based on the application of questionnaires. As far as we know, only two studies used polysomnography (PSG), the gold standard for the diagnosis of SD. This is the first study assessing SD in children with chronic kidney disease (CKD) on APD in our country. METHODS: This was an observational and descriptive study. Children up to 18 years of age who had undergone APD for a minimum of three months were considered eligible...
April 2017: Sleep Medicine
https://www.readbyqxmd.com/read/28348100/effects-of-conversion-to-a-bicarbonate-lactate-buffered-neutral-ph-low-gdp-pd-regimen-in-prevalent-pd-a-2-year-randomized-clinical-trial
#3
Karima Farhat, Caroline Douma, Evelina Ferrantelli, Pieter M Ter Wee, Robert H Beelen, Frans J van Ittersum
♦ Background: The use of pH-neutral peritoneal dialysis (PD) fluids low in glucose degradation products (GDP) may better preserve the peritoneal membrane and have fewer systemic effects. The effects of conversion from conventional to neutral-pH, low-GDP PD fluids in prevalent patients are unclear. Few studies on the role of neutral-pH, low-GDP PD have studied residual renal function, ultrafiltration, peritonitis incidence and technique failure, transport characteristics, and local and systemic markers of inflammation in prevalent PD patients...
March 27, 2017: Peritoneal Dialysis International: Journal of the International Society for Peritoneal Dialysis
https://www.readbyqxmd.com/read/28326165/neurochemical-and-motor-changes-in-mice-with-combined-mutations-linked-to-parkinson-s-disease
#4
Xiang Bai, Margaret Chia-Ying Wey, Paul Anthony Martinez, Chao Shi, Elizabeth Fernandez, Randy Strong
Considerable evidence suggests that oxidative stress plays a role in the pathogenesis of Parkinson's disease (PD), the most prevalent neurodegenerative movement disorder. Reduced expression of aldehyde dehydrogenase-1 (ALDH1) and glutathione peroxidase-1 (GPX1), enzymes that function to detoxify aldehydes and hydroxyl radicals, respectively, has been reported in the substantia nigra of patients who died with PD. To determine whether deficiency in these two genes contributes to the pathogenesis of PD, mice were generated with homozygous null mutations of both Aldh1a1 (the murine homolog of ALDH1) and Gpx1 genes [knockout (KO) mice]...
2017: Pathobiology of Aging & Age related Diseases
https://www.readbyqxmd.com/read/28325860/economic-costs-of-automated-and-continuous-ambulatory-peritoneal-dialysis-in-taiwan-a-combined-survey-and-retrospective-cohort-analysis
#5
Chao-Hsiun Tang, Yu-Ting Wu, Siao-Yuan Huang, Hsi-Hsien Chen, Ming-Ju Wu, Bang-Gee Hsu, Jer-Chia Tsai, Tso-Hsiao Chen, Yuh-Mou Sue
OBJECTIVES: Taiwan succeeded in raising the proportion of peritoneal dialysis (PD) usage after the National Health Insurance (NHI) payment scheme introduced financial incentives in 2005. This study aims to compare the economic costs between automated PD (APD) and continuous ambulatory PD (CAPD) modalities from a societal perspective. DESIGN AND SETTING: A retrospective cohort of patients receiving PD from the NHI Research Database was identified during 2004-2011...
March 21, 2017: BMJ Open
https://www.readbyqxmd.com/read/28315844/cerebral-glucose-metabolism-and-cognition-in-newly-diagnosed-parkinson-s-disease-icicle-pd-study
#6
M J Firbank, A J Yarnall, R A Lawson, G W Duncan, T K Khoo, G S Petrides, J T O'Brien, R A Barker, R J Maxwell, D J Brooks, D J Burn
OBJECTIVE: To assess reductions of cerebral glucose metabolism in Parkinson's disease (PD) with 18F-fluorodeoxyglucose (FDG) positron emission tomography (PET), and their associations with cognitive decline. METHODS: FDG-PET was performed on a cohort of 79 patients with newly diagnosed PD (mean disease duration 8 months) and 20 unrelated controls. PD participants were scanned while on their usual dopaminergic medication. Cognitive testing was performed at baseline, and after 18 months using the Cognitive Drug Research (CDR) and Cambridge Neuropsychological Test Automated Battery (CANTAB) computerised batteries, the Mini-Mental State Examination (MMSE), and the Montreal Cognitive Assessment (MoCA)...
April 2017: Journal of Neurology, Neurosurgery, and Psychiatry
https://www.readbyqxmd.com/read/28268412/towards-holistic-free-living-assessment-in-parkinson-s-disease-unification-of-gait-and-fall-algorithms-with-a-single-accelerometer
#7
Alan Godfrey, Alan Bourke, Silvia Del Din, Rosie Morris, Aodhan Hickey, Jorunn L Helbostad, Lynn Rochester
Technological developments have seen the miniaturization of sensors, small enough to be embedded in wearable devices facilitating unobtrusive and longitudinal monitoring in free-living environments. Concurrently, the advances in algorithms have been ad-hoc and fragmented. To advance the mainstream use of wearable technology and improved functionality of algorithms all methodologies must be unified and robustly tested within controlled and free-living conditions. Here we present and unify a (i) gait segmentation and analysis algorithm and (ii) a fall detection algorithm...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28256439/automated-bone-subtraction-image-analysis-software-package-for-improved-and-faster-ct-monitoring-of-longitudinal-spine-involvement-in-patients-with-multiple-myeloma
#8
Marius Horger, Hendrick Ditt, Shu Liao, Katja Weisel, Jan Fritz, Wolfgang M Thaiss, Sascha Kaufmann, Konstantin Nikolaou, Christopher Kloth
RATIONALE AND OBJECTIVES: The study aimed to assess the diagnostic benefit of a novel computed tomography (CT) post-processing software generating subtraction maps of longitudinal non-enhanced CT examinations for monitoring the course of myeloma bone disease in the spine. MATERIALS AND METHODS: The local institutional review board approved the retrospective data evaluation. Included were 82 consecutive myeloma patients (46 male; mean age, 65.08 ± 9.76) who underwent 188 repeated whole-body reduced-dose Multislice Detector Computed Tomography (MDCT) at our institution between December 2013 and January 2016...
February 27, 2017: Academic Radiology
https://www.readbyqxmd.com/read/28254588/connecting-imaging-mass-spectrometry-and-magnetic-resonance-imaging-based-anatomical-atlases-for-automated-anatomical-interpretation-and-differential-analysis
#9
Nico Verbeeck, Jeffrey M Spraggins, Monika J M Murphy, Hui-Dong Wang, Ariel Y Deutch, Richard M Caprioli, Raf Van de Plas
Imaging mass spectrometry (IMS) is a molecular imaging technology that can measure thousands of biomolecules concurrently without prior tagging, making it particularly suitable for exploratory research. However, the data size often makes thorough extraction of relevant information impractical. To help guide and accelerate IMS data analysis, we recently developed a framework that integrates IMS measurements with anatomical atlases, opening up opportunities for anatomy-driven exploration of IMS data. One example is the automated anatomical interpretation of ion images, where empirically measured ion distributions are automatically decomposed into their underlying anatomical structures...
February 27, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28240402/in-vivo-detection-of-lateral-ventral-tier-nigral-degeneration-in-parkinson-s-disease
#10
Daniel E Huddleston, Jason Langley, Jan Sedlacik, Kai Boelmans, Stewart A Factor, Xiaoping P Hu
The objective of this study was to measure neuromelanin-sensitive MRI contrast changes in the lateral-ventral tier of substantia nigra pars compacta in Parkinson's disease (PD). Histopathological studies of PD have demonstrated both massive loss of melanized dopamine neurons and iron accumulation in the substantia nigra pars compacta. Neurodegeneration is most profound in the lateral-ventral tier of this structure. We have previously shown in both healthy controls and individuals with PD that neuromelanin-sensitive MRI and iron-sensitive MRI contrast regions in substantia nigra overlap...
May 2017: Human Brain Mapping
https://www.readbyqxmd.com/read/28226582/towards-holistic-free-living-assessment-in-parkinson-s-disease-unification-of-gait-and-fall-algorithms-with-a-single-accelerometer
#11
Alan Godfrey, Alan Bourke, Silvia Del Din, Rosie Morris, Aodhan Hickey, Jorunn L Helbostad, Lynn Rochester, Alan Godfrey, Alan Bourke, Silvia Del Din, Rosie Morris, Aodhan Hickey, Jorunn L Helbostad, Lynn Rochester, Silvia Del Din, Rosie Morris, Alan Godfrey, Lynn Rochester, Jorunn L Helbostad, Aodhan Hickey, Alan Bourke
Technological developments have seen the miniaturization of sensors, small enough to be embedded in wearable devices facilitating unobtrusive and longitudinal monitoring in free-living environments. Concurrently, the advances in algorithms have been ad-hoc and fragmented. To advance the mainstream use of wearable technology and improved functionality of algorithms all methodologies must be unified and robustly tested within controlled and free-living conditions. Here we present and unify a (i) gait segmentation and analysis algorithm and (ii) a fall detection algorithm...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28222333/immunoprofiling-as-a-predictor-of-patient-s-response-to-cancer-therapy-promises-and-challenges
#12
REVIEW
Daniel Bethmann, Zipei Feng, Bernard A Fox
Immune cell infiltration is common to many tumors and has been recognized by pathologists for more than 100 years. The application of digital imaging and objective assessment software allowed a concise determination of the type and quantity of immune cells and their location relative to the tumor and, in the case of colon cancer, characterized overall survival better than AJCC TNM staging. Subsequently, expression of PD-L1, by 50% or more tumor cells, identified NSCLC patients with double the response rate to anti-PD-1...
February 18, 2017: Current Opinion in Immunology
https://www.readbyqxmd.com/read/28144037/automated-analysis-of-connected-speech-reveals-early-biomarkers-of-parkinson-s-disease-in-patients-with-rapid-eye-movement-sleep-behaviour-disorder
#13
Jan Hlavnička, Roman Čmejla, Tereza Tykalová, Karel Šonka, Evžen Růžička, Jan Rusz
For generations, the evaluation of speech abnormalities in neurodegenerative disorders such as Parkinson's disease (PD) has been limited to perceptual tests or user-controlled laboratory analysis based upon rather small samples of human vocalizations. Our study introduces a fully automated method that yields significant features related to respiratory deficits, dysphonia, imprecise articulation and dysrhythmia from acoustic microphone data of natural connected speech for predicting early and distinctive patterns of neurodegeneration...
December 2017: Scientific Reports
https://www.readbyqxmd.com/read/28127739/phosphate-equilibration-rate-and-daily-clearance-in-patients-on-capd-ccpd-and-apd
#14
Rafael Gomez, Jacek Waniewski, Adelaida Zapata, Mauro Pietribiasi, Bengt Lindholm
BACKGROUND: Criteria for how to assess removal rate of inorganic phosphorous (iP) in peritoneal dialysis (PD) and whether iP removal differs between different PD modalities are debated. METHODS: In a cross-sectional study, 73 prevalent patients on continuous ambulatory PD (n = 16), continuous cyclic PD (n = 8) or automated PD (n = 49) with mean age 54 (range, 18-87) years, 46 males, underwent standard peritoneal equilibration test (PET) and 24-hour collection of dialysate with measurements of iP, urea and creatinine in all samples and bags...
January 24, 2017: International Journal of Artificial Organs
https://www.readbyqxmd.com/read/28125201/automated-phase-segmentation-for-large-scale-x-ray-diffraction-data-using-a-graph-based-phase-segmentation-gphase-algorithm
#15
Zheng Xiong, Yinyan He, Jason R Hattrick-Simpers, Jianjun Hu
The creation of composition-processing-structure relationships currently represents a key bottleneck for data analysis for high-throughput experimental (HTE) material studies. Here we propose an automated phase diagram attribution algorithm for HTE data analysis that uses a graph-based segmentation algorithm and Delaunay tessellation to create a crystal phase diagram from high throughput libraries of X-ray diffraction (XRD) patterns. We also propose the sample-pair based objective evaluation measures for the phase diagram prediction problem...
March 13, 2017: ACS Combinatorial Science
https://www.readbyqxmd.com/read/28121523/agreement-between-breast-percentage-density-estimations-from-standard-dose-versus-synthetic-digital-mammograms-results-from-a-large-screening-cohort-using-automated-measures
#16
Emily F Conant, Brad M Keller, Lauren Pantalone, Aimilia Gastounioti, Elizabeth S McDonald, Despina Kontos
Purpose To evaluate agreement between automated estimates of breast density made from standard-dose versus synthetic digital mammograms in a large cohort of women undergoing screening. Materials and Methods This study received institutional review board approval with waiver of consent. A total of 3668 negative (Breast Imaging Reporting and Data System category 1 or 2) digital breast tomosynthesis (DBT) screening examinations consecutively performed over a 4-month period at one institution for which both standard-dose and synthetic mammograms were available for analysis were retrospectively analyzed...
January 25, 2017: Radiology
https://www.readbyqxmd.com/read/28116240/associations-of-hippocampal-subfields-in-the-progression-of-cognitive-decline-related-to-parkinson-s-disease
#17
Heidi Foo, Elijah Mak, Russell Jude Chander, Aloysius Ng, Wing Lok Au, Yih Yian Sitoh, Louis C S Tan, Nagaendran Kandiah
OBJECTIVE: Hippocampal atrophy has been associated with mild cognitive impairment (MCI) in Parkinson's disease (PD). However, literature on how hippocampal atrophy affects the pathophysiology of cognitive impairment in PD has been limited. Previous studies assessed the hippocampus as an entire entity instead of their individual subregions. We studied the progression of cognitive status in PD subjects over 18 in relation to hippocampal subfields atrophy. METHODS: 65 PD subjects were included...
2017: NeuroImage: Clinical
https://www.readbyqxmd.com/read/28088342/nanoparticle-standards-for-immuno-based-quantitation-of-%C3%AE-synuclein-oligomers-in-diagnostics-of-parkinson-s-disease-and-other-synucleinopathies
#18
Yvonne Herrmann, Tuyen Bujnicki, Christian Zafiu, Andreas Kulawik, Katja Kühbach, Luriano Peters, Judith Fabig, Johannes Willbold, Oliver Bannach, Dieter Willbold
Parkinson's disease (PD) is a neurodegenerative disorder that is characterized by symptoms such as rigor, tremor and bradykinesia. A reliable and early diagnosis could improve the development of early therapeutic strategies before death of dopaminergic neurons leads to the first clinical symptoms. The sFIDA (surface-based fluorescence intensity distribution analysis) assay is a highly sensitive method to determine the concentration of α-synuclein (α-syn) oligomers which are presumably the major toxic isoform of α-syn and potentially the most direct biomarker for PD...
March 2017: Clinica Chimica Acta; International Journal of Clinical Chemistry
https://www.readbyqxmd.com/read/28077410/health-policies-on-dialysis-modality-selection-a-nationwide-population-cohort-study
#19
Yi-Chun Lin, Yen-Chung Lin, Chih-Chin Kao, Hsi-Hsien Chen, Chih-Cheng Hsu, Mai-Szu Wu
OBJECTIVES: In Taiwan, peritoneal dialysis (PD) and haemodialysis are fully accessible to patients with end-stage renal disease. However, the usage of PD is considered low in Taiwan. Since 2005, 4 major policies have been implemented by Taiwan's Ministry of Health and Welfare, namely a multidisciplinary predialysis care programme and usage increasing the PD incidence as a key performance indicator (KPI) for hospital accreditation, both of which were implemented in 2006; reimbursement of the glucose-free dialysate, icodextrin that was implemented in 2007; and insurance reimbursement for renting automated PD machines that was implemented in 2008...
January 11, 2017: BMJ Open
https://www.readbyqxmd.com/read/28066919/innovations-in-treatment-delivery-risk-of-peritonitis-and-patient-retention-on-peritoneal-dialysis
#20
Beth Piraino
Early innovations in the delivery of peritoneal dialysis (PD) markedly improved its acceptability and lowered peritonitis rates. The standard osmotic agent was, and continues to be dextrose, an agent that is not ideal as it is readily absorbed. The development of icodextrin-containing dialysis fluid has allowed a long dwell time to provide more effective ultrafiltration. The development of a smaller, more easily used automated cycler, led to an increase in the proportion of patients on the cycler as opposed to CAPD...
March 2017: Seminars in Dialysis
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