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https://www.readbyqxmd.com/read/29782653/data-driven-gating-in-pet-influence-of-respiratory-signal-noise-on-motion-resolution
#1
Florian Büther, Iris Ernst, Lynn Johann Frohwein, Joost Pouw, Klaus Peter Schäfers, Lars Stegger
PURPOSE: Data-driven gating (DDG) approaches for positron emission tomography (PET) are interesting alternatives to conventional hardware-based gating methods. In DDG, the measured PET data themselves are utilized to calculate a respiratory signal that is subsequently used for gating purposes. The success of gating is then highly dependent on the statistical quality of the PET data. In this study we investigate how this quality determines signal noise and thus motion resolution in clinical PET scans using a center-of-mass-based (COM) DDG approach, specifically with regard to motion management of target structures in future radiotherapy planning applications...
May 21, 2018: Medical Physics
https://www.readbyqxmd.com/read/29778549/linked-color-imaging-can-help-gastric-helicobacter-pylori-infection-diagnosis-during-endoscopy
#2
Tsung-Hsing Chen, Chen-Ming Hsu, Hao-Tsai Cheng, Yin-Yi Chu, Ming-Yao Su, Jun-Te Hsu, Ta-Sen Yeh, Chang-Fu Kuo, Cheng-Tang Chiu
BACKGROUND: Esophagogastroduodenoscopy (EGD) is a standard tool for detection of mucosal and submucosal lesions. However, identification of Helicobacter pylori (H. P) infection using EGD alone is limited in accuracy. Linked color imaging (LCI) is a novel tool to capture real-time image with sufficient contrast to observe mucosal microstructure. METHODS: This study aims to evaluate the applicability of LCI in the identification of H. pylori infection. Consecutive 122 patients scheduled for EGD were included...
May 16, 2018: Journal of the Chinese Medical Association: JCMA
https://www.readbyqxmd.com/read/29777122/alcohol-facilitates-detection-of-concealed-identity-information
#3
Kristina Suchotzki, Matthias Gamer
The Concealed Information Test (CIT) is a well-validated means to detect whether someone possesses certain (e.g., crime-relevant) information. The current study investigated whether alcohol intoxication during CIT administration influences reaction time (RT) CIT-effects. Two opposing predictions can be made. First, by decreasing attention to critical information, alcohol intoxication could diminish CIT-effects. Second, by hampering the inhibition of truthful responses, alcohol intoxication could increase CIT-effects...
May 18, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29775687/effects-of-bronchodilation-on-biomarkers-of-peripheral-airway-inflammation-in-copd
#4
Pierachille Santus, Dejan Radovanovic, Susanna Mascetti, Alessia Pauletti, Vincenzo Valenti, Marco Mantero, Alberto Papi, Marco Contoli
Peripheral airway inflammation and dysfunction are key elements in the pathogenesis of COPD. The exhaled alveolar fraction of nitric oxide (CANO) is an indirect biomarker of lung peripheral inflammation. We tested whether inhaled long-acting bronchodilators (LABA) can affect CANO and we evaluated correlations with lung mechanics in patients with COPD. Two-centre, randomised, double blind, crossover study including COPD patients with moderate-to-severe airflow obstruction. Following a pharmacological washout, multi-flow exhaled fraction of NO (FENO), plethysmography, lung diffusion (DLCO), single breath nitrogen washout test and dyspnoea were measured in a crossover manner at baseline and 30, 60 and 180 minutes following administration of salmeterol (Sal) or formoterol fumarate (FF)...
May 15, 2018: Pharmacological Research: the Official Journal of the Italian Pharmacological Society
https://www.readbyqxmd.com/read/29774697/effect-of-adenotonsillectomy-on-attention-in-korean-children-with-sleep-disordered-breathing
#5
Min Jae Kim, Sung Hee Bae, Sung Min Lee, Kang Hyun Lee, Dong-Kyu Kim
Objectives.: Pediatric sleep-disordered breathing (SDB) is a common debilitating disorder that can adversely affect the attention and academic performance of school-age children. Unfortunately, only a few studies have examined the effect of SDB treatment on attention in pediatric populations. Therefore, the aim of this study was to prospectively investigate the effect of SDB treatment on attention in children. Methods.: This study consecutively enrolled SDB children with adenotonsillar hypertrophy...
May 18, 2018: Clinical and Experimental Otorhinolaryngology
https://www.readbyqxmd.com/read/29773446/effects-of-preparatory-coaching-and-home-practice-for-deep-inspiration-breath-hold-on-cardiac-dose-for-left-breast-radiation-therapy
#6
A Kim, A M Kalet, N Cao, D S Hippe, L C Fang, L Young, J Meyer, E V Lang, N A Mayr
AIMS: Deep inspiration breath hold (DIBH) reduces cardiac radiation exposure by creating cardiac-chest wall separation in breast cancer radiotherapy. DIBH requires sustaining chest wall expansion for up to 40 s and involves complex co-ordination of thoraco-abdominal muscles, which may not be intuitive to patients. We investigated the effect of in-advance preparatory DIBH coaching and home practice on cardiac doses. MATERIALS AND METHODS: Successive patients from 1 February 2015 to 31 December 2016 with left-sided breast cancer who underwent tangential field radiotherapy utilising the DIBH technique were included...
May 14, 2018: Clinical Oncology: a Journal of the Royal College of Radiologists
https://www.readbyqxmd.com/read/29773293/usefulness-of-the-forced-oscillation-technique-in-assessing-the-therapeutic-result-of-tracheobronchial-central-airway-obstruction
#7
Masanori Yasuo, Yoshiaki Kitaguchi, Fumiya Kinota, Makoto Kosaka, Kazuhisa Urushihata, Atsuhito Ushiki, Hiroshi Yamamoto, Satoshi Kawakami, Masayuki Hanaoka
BACKGROUND: Pulmonary function tests (PFTs) comprise the traditional method for detecting central airway obstruction (CAO) and evaluating therapeutic effects, but are effort-dependent. By contrast, the forced oscillation technique (FOT) is performed during tidal breathing in an effort-independent mode and is universally used to assess respiratory function in patients with chronic obstructive pulmonary disease (COPD) and asthma. We used the FOT to measure airway resistance and reactance in patients with CAO before and after interventional bronchoscopy and compared the results to data obtained using PFTs...
May 2018: Respiratory Investigation
https://www.readbyqxmd.com/read/29773218/kleine-levin-syndrome-the-contribution-of-pet-scan-and-hydrogen-breath-test-for-small-intestinal-bacterial-overgrowth
#8
Andrea Melpignano, Giulia Milioli, Anna Bertelè, Anna Elisabetta Vaudano, Caterina Ghetti, Liborio Parrino, Livia Ruffini
No abstract text is available yet for this article.
June 2018: Sleep Medicine
https://www.readbyqxmd.com/read/29773204/intracerebral-hemorrhage-and-sleep-disordered-breathing
#9
Lynda D Lisabeth, Richard V Scheer, Chengwei Li, Erin Case, Ronald D Chervin, Darin B Zahuranec, Lewis B Morgenstern, Nelda M Garcia, Susan Tower, Devin L Brown
OBJECTIVE/BACKGROUND: Limited data are available on sleep-disordered breathing (SDB) following intracerebral hemorrhage (ICH). Our aim was to characterize the objective measures of post-ICH SDB and questionnaire-reported pre-ICH sleep characteristics, overall and by ethnicity. PATIENTS/METHODS: Participants with ICH who were enrolled in the population-based Brain Attack Surveillance in Corpus Christi project (2010-2016) reported their pre-ICH sleep duration and completed the Berlin Questionnaire to characterize pre-ICH risk of SDB...
June 2018: Sleep Medicine
https://www.readbyqxmd.com/read/29768512/infant-cpap-for-low-income-countries-an-experimental-comparison-of-standard-bubble-cpap-and-the-pumani-system
#10
Markus Falk, Snorri Donaldsson, Thomas Drevhammar
INTRODUCTION: Access to inexpensive respiratory support to newborn infants improves survival in low-income countries. Standard bubble continuous positive airway pressure (CPAP) has been extensively used worldwide for more than 30 years. One project aimed at providing affordable CPAP is the Pumani system developed by Rice 360°. Compared to standard bubble CPAP the system has an unconventional design. The aim was to compare the Pumani system with two traditional bubble CPAP systems, focusing on in-vitro performance and safety...
2018: PloS One
https://www.readbyqxmd.com/read/29765004/a-comparison-of-the-adjustable-ranges-of-inspiratory-pressurization-during-pressure-controlled-continuous-mandatory-ventilation-of-5-icu-ventilators
#11
Yukiko Koyama, Akinori Uchiyama, Junko Yoshida, Takeshi Yoshida, Tomonori Yamashita, Yuji Fujino
BACKGROUND: Faster inspiratory pressurization can improve patient-ventilator synchrony and reduce the patient's work of breathing during pressure controlled continuous mandatory (PC-CMV) ventilation. The characteristics of the pressurization ramp settings are not standardized across ventilators from different manufacturers. We performed a bench test of 5 models of ICU ventilators to examine the effects of pressurization ramp settings on the actual pressurization. METHODS: A twin-bellows lung model was used, in which one bellow simulates inspiratory muscle activity and the other simulates an adult normal lung model...
May 15, 2018: Respiratory Care
https://www.readbyqxmd.com/read/29764740/are-computed-tomography-3d-measurements-of-the-upper-airways-in-mouth-breathing-children-in-agreement-with-the-ent-clinical-diagnosis-of-obstruction
#12
Bruno César Ladeira Vidigal, Carolina Morsani Mordente, Paula Loureiro Cheib, Flávio Ricardo Manzi, Letícia Paiva Franco, Helena Maria Gonçalves Becker, Bernardo Quiroga Souki
INTRODUCTION: Imaging studies have hystorically been used to support the clinical otorhinolaryngological evaluation of the upper respiratory tract for the diagnosis of obstructive causes of oral breathing. OBJECTIVE: The objective of this study was to compare 3D volumetric measurements of nasal cavity, nasopharynx and oropharynx of obstructed mouth-breathing children with measurements of non-obstructed mouth-breathing children. METHODS: This retrospective study included 25 mouth-breathing children aged 5-9 years evaluated by otorhinolaryngological clinical examination, flexible nasoendoscopy and full-head multi-slice computed tomography...
March 11, 2018: Brazilian Journal of Otorhinolaryngology
https://www.readbyqxmd.com/read/29764391/practice-and-outcomes-of-neonatal-resuscitation-for-newborns-with-birth-asphyxia-at-kakamega-county-general-hospital-kenya-a-direct-observation-study
#13
Duncan N Shikuku, Benson Milimo, Elizabeth Ayebare, Peter Gisore, Gorrette Nalwadda
BACKGROUND: About three - quarters of all neonatal deaths occur during the first week of life, with over half of these occurring within the first 24 h after birth. The first minutes after birth are critical to reducing neonatal mortality. Successful neonatal resuscitation (NR) has the potential to prevent these perinatal mortalities related to birth asphyxia. This study described the practice of NR and outcomes of newborns with birth asphyxia in a busy referral hospital. METHODS: Direct observations of 138 NRs by 28 healthcare providers (HCPs) were conducted using a predetermined checklist adapted from the national pediatric resuscitation protocol...
May 15, 2018: BMC Pediatrics
https://www.readbyqxmd.com/read/29764258/reference-less-mr-thermometry-on-pre-clinical-thiel-human-cadaver-for-liver-surgery-with-mrgfus
#14
Ioannis Karakitsios, Senay Mihcin, Andreas Melzer
PURPOSE: Reference-less MR thermometry can be a promising technique for temperature mapping during liver treatment with Magnetic Resonance-guided Focused Ultrasound (MRgFUS), as it is more robust to breathing motion than Proton Resonance Frequency MR thermometry. However, there is a lack of a pre-clinical model for repeatable testing of reference-less thermometry. The purpose of this work was to verify the explanted Thiel embalmed human liver and whole Thiel embalmed human cadaver for application of a custom made reference-less thermometry algorithm during MRgFUS sonication...
May 15, 2018: Minimally Invasive Therapy & Allied Technologies: MITAT
https://www.readbyqxmd.com/read/29762381/13c-labeled-starch-breath-test-in-congenital-sucrase-isomaltase-deficiency
#15
Claudia C Robayo-Torres, Marisela Diaz-Sotomayor, Bruce R Hamaker, Susan S Baker, Bruno P Chumpitazi, Antone R Opekun, Buford L Nichols
BACKGROUND AND HYPOTHESES: Human starch digestion is a multienzyme process involving 6 different enzymes: salivary and pancreatic α-amylase; sucrase and isomaltase (from sucrose-isomaltase [SI]), and maltase and glucoamylase (from maltase-glucoamylase [MGAM]). Together these enzymes cleave starch to smaller molecules ultimately resulting in the absorbable monosaccharide glucose. Approximately 80% of all mucosal maltase activity is accounted for by SI and the reminder by MGAM. Clinical studies suggest that starch may be poorly digested in those with congenital sucrase-isomaltase deficiency (CSID)...
June 2018: Journal of Pediatric Gastroenterology and Nutrition
https://www.readbyqxmd.com/read/29761475/exhaled-breath-analysis-in-evaluation-of-psychological-stress-a-short-literature-review
#16
REVIEW
Alessandro Tonacci, Francesco Sansone, Anna Paola Pala, Raffaele Conte
Physiological stress is pervasive in today's society. Its detection is normally performed through several unobtrusive methods, driving both caregivers and patients to take measures to reduce the burden of this condition on human health. Among the methods for assessing stress, exhaled breath analysis represents a non-invasive, real-time alternative to classic laboratory tests. Therefore, a literature review was performed to assess the presence of altered parameters, related to psychological stress, in exhaled breath...
May 15, 2018: International Journal of Psychology: Journal International de Psychologie
https://www.readbyqxmd.com/read/29761336/-syncope-in-children-and-adolescents
#17
REVIEW
Matthias J Müller, Thomas Paul
Syncope is common in children and adolescents. Neurally mediated syncope including pallid and cyanotic breath holding spells, vagovasal syncope and neurocardiogenic syncope is based on a common pathomechanism and accounts for approximately 75% of cases. A potentially life-threatening cardiac cause of syncope may be present in up to 6%. Detailed history, physical examination and 12-lead electrocardiogram (ECG) allow discrimination between benign and serious syncope in the majority of pediatric patients. Tilt-testing can be useful when diagnosis is unclear...
May 14, 2018: Herzschrittmachertherapie & Elektrophysiologie
https://www.readbyqxmd.com/read/29761252/testing-and-treating-small-intestinal-bacterial-overgrowth-reduces-symptoms-in-patients-with-inflammatory-bowel-disease
#18
Shirley Cohen-Mekelburg, Zaid Tafesh, Elliot Coburn, Russell Weg, Neena Malik, Colleen Webb, Hoda Hammad, Ellen Scherl, Brian P Bosworth
BACKGROUND: Common mechanisms against small intestinal bacterial overgrowth (SIBO), including an intact ileocecal valve, gastric acid secretion, intestinal motility, and an intact immune system, are compromised in inflammatory bowel disease (IBD), and therefore, a relatively high incidence of SIBO has been reported in this population. AIMS: We aimed to determine whether an improvement in IBD clinical activity scores is seen after testing and treating SIBO. METHODS: A retrospective cohort study of 147 patients with inflammatory bowel disease who were referred for SIBO breath testing from 1/2012 to 5/2016 was performed...
May 14, 2018: Digestive Diseases and Sciences
https://www.readbyqxmd.com/read/29761234/prevalence-and-predictors-of-small-intestinal-bacterial-overgrowth-in-irritable-bowel-syndrome-a-systematic-review-and-meta-analysis
#19
REVIEW
Binrui Chen, John Jae-Woo Kim, Yawen Zhang, Lijun Du, Ning Dai
BACKGROUND: The reported prevalence of small intestinal bacterial overgrowth (SIBO) among individuals with irritable bowel syndrome (IBS) is highly variable. The aim of the study is to estimate the prevalence and identify predictors of SIBO in IBS. METHODS: PubMed, Cochrane Library, and EMBASE through July 2017 were searched to identify studies evaluating the prevalence of SIBO in IBS. The pooled prevalence of SIBO among individuals with IBS and the pooled odds ratio (OR) of SIBO among those with IBS compared with healthy controls were calculated...
May 14, 2018: Journal of Gastroenterology
https://www.readbyqxmd.com/read/29761136/yield-of-echocardiogram-and-predictors-of-positive-yield-in-pediatric-patients-a-study-in-an-urban-community-based-outpatient-pediatric-cardiology-clinic
#20
Ramya Deepthi Billa, Susan Szpunar, Lida Zeinali, Premchand Anne
The yield of outpatient echocardiograms varies based on the indication for the echocardiogram and the age of the patient. The purpose of this study was to determine the cumulative yield of outpatient echocardiograms by age group and reason for the test. A secondary aim was to determine the predictors of a positive echocardiogram in an outpatient cardiology clinic at a large community teaching hospital. We retrospectively reviewed the charts of 891 patients who had a first-time echocardiogram between 2011 and 2015...
2018: Global Pediatric Health
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