keyword
MENU ▼
Read by QxMD icon Read
search

pediatric chest

keyword
https://www.readbyqxmd.com/read/28095022/estimating-effective-dose-of-radiation-from-pediatric-cardiac-ct-angiography-using-a-64-mdct-scanner-new-conversion-factors-relating-dose-length-product-to-effective-dose
#1
Sigal Trattner, Anjali Chelliah, Peter Prinsen, Carrie B Ruzal-Shapiro, Yanping Xu, Sachin Jambawalikar, Maxwell Amurao, Andrew J Einstein
OBJECTIVE: The purpose of this study is to determine the conversion factors that enable accurate estimation of the effective dose (ED) used for cardiac 64-MDCT angiography performed for children. MATERIALS AND METHODS: Anthropomorphic phantoms representative of 1- and 10-year-old children, with 50 metal oxide semiconductor field-effect transistor dosimeters placed in organs, underwent scanning performed using a 64-MDCT scanner with different routine clinical cardiac scan modes and x-ray tube potentials...
January 17, 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/28073572/routine-preoperative-laboratory-testing-in-elective-pediatric-cardiothoracic-surgery-is-largely-unnecessary
#2
R Michael Nieto, Luis E De León, Daniel Trujillo Diaz, Kimberly A Krauklis, Charles D Fraser
OBJECTIVE: Routine preoperative laboratory testing (RLT) is common practice in pediatric cardiothoracic surgery and is associated with significant cost burden to patients and families. We sought to examine the value of RLT in patients undergoing elective pediatric cardiothoracic surgery. METHODS: We conducted a retrospective study of all scheduled elective pediatric cardiothoracic surgery at our institution from 2012 to 2014. Inpatients were excluded. Patient charts were reviewed to obtain preoperative laboratory values and determine relationship to case cancellation...
November 16, 2016: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28068786/topical-and-low-dose-intravenous-tranexamic-acid-in-cyanotic-cardiac-surgery
#3
Jigar Patel, Mrugesh Prajapati, Hardik Patel, Hemang Gandhi, Shilpa Deodhar, Himani Pandya
Background Coagulopathy is a major problem in surgery for cyanotic congenital heart disease. Tranexamic acid has been used both topically and systemically and plays a vital role in pediatric cardiac surgery by reducing blood loss and blood product requirement. We aimed to determine the anti-fibrinolytic effectiveness of low-dose systemic or topical tranexamic acid or a combination of both. Methods Seventy-five patients were divided in 3 groups of 25. Group A patients were given tranexamic acid 20 mg kg(-1) intravenously after sternotomy and 20 mg kg(-1) after heparin reversal...
January 1, 2017: Asian Cardiovascular & Thoracic Annals
https://www.readbyqxmd.com/read/28068001/in-vivo-and-in-vitro-ivacaftor-response-in-cystic-fibrosis-patients-with-residual-cftr-function-n-of-1-studies
#4
Meghan E McGarry, Beate Illek, Ngoc P Ly, Lorna Zlock, Sabrina Olshansky, Courtney Moreno, Walter E Finkbeiner, Dennis W Nielson
RATIONALE: Ivacaftor, a cystic fibrosis transmembrane conductance regulator (CFTR) potentiator, decreases sweat chloride concentration, and improves pulmonary function in 6% of cystic fibrosis (CF) patients with specific CFTR mutations. Ivacaftor increases chloride transport in many other CFTR mutations in non-human cells, if CFTR is in the epithelium. Some CF patients have CFTR in the epithelium with residual CFTR function. The effect of ivacaftor in these patients is unknown. METHODS: This was a series of randomized, crossover N-of-1 trials of ivacaftor and placebo in CF patients ≥8 years old with potential residual CFTR function (intermediate sweat chloride concentration, pancreatic sufficient, or mild bronchiectasis on chest CT)...
January 9, 2017: Pediatric Pulmonology
https://www.readbyqxmd.com/read/28063680/gastric-tube-esophagoplasty-for-pediatric-esophageal-replacement
#5
Mahmoud M A Elfiky, Gamal El Tagy, Wissam Mohamed, Osama Abdel Azim, Mohamed A Elfiky
BACKGROUND: Esophageal replacement in children is indicated in cases of esophageal atresia with or without fistula, in case of long gap esophageal atresia or failed primary repair. Intractable post corrosive esophageal stricture is considered also a major indication for replacement. METHODS: This is a cohort retrospective study of esophageal replacement cases by gastric tube carried out at the pediatric surgery department at Cairo University between 2011 and 2015...
December 24, 2016: Journal of Pediatric Surgery
https://www.readbyqxmd.com/read/28057296/routine-post-operative-esophagram-is-not-necessary-after-repair-of-esophageal-atresia
#6
Jamie Golden, Natalie E Demeter, Joanna C Lim, Henri R Ford, Jeffrey S Upperman, Christopher P Gayer
INTRODUCTION: Esophagrams are routinely performed following repair of esophageal atresia (EA) with or without tracheoesophageal fistula (TEF); however, its utility has not been validated. METHODS: EA/TEF repair performed from 2003 to 2014 at a single pediatric hospital and from 2004 to 2014 in the Pediatric Health Information System (PHIS) database were retrospectively reviewed to determine utility of esophagrams. RESULTS: Esophagram was performed in 99% of patients at our institution (N = 105)...
December 30, 2016: American Journal of Surgery
https://www.readbyqxmd.com/read/28055990/dilation-of-pediatric-eosinophilic-esophagitis-adverse-events-and-short-term-outcomes
#7
Calies Menard-Katcher, Glenn T Furuta, Robert E Kramer
OBJECTIVES: Although several studies report the experience with adult eosinophilic esophagitis (EoE) related stricture, outcomes for pediatric patients with EoE associated fibrostenosis and stricture is even more limited. To address this, we aim to identify the adverse event rate and short-term outcomes of the largest reported cohort of children with EoE to undergo esophageal dilation for management of symptomatic esophageal narrowing. METHODS: A retrospective assessment of all children, 18 years and younger, who underwent esophageal dilation at an academic children's hospital over a 5-year period was conducted...
July 18, 2016: Journal of Pediatric Gastroenterology and Nutrition
https://www.readbyqxmd.com/read/28052587/pilot-study-of-dornase-alfa-pulmozyme-therapy-for-acquired-ventilator-associated-infection-in-preterm-infants
#8
Melissa Scala, Deborah Hoy, Maria Bautista, Judith Jones Palafoutas, Kabir Abubakar
OBJECTIVE: Evaluate the feasibility, safety, and efficacy of adjunctive treatment with dornase alfa in preterm patients with ventilator-associated pulmonary infection (VAPI) compared to standard care. WORKING HYPOTHESIS: We hypothesize that therapy with dornase alfa will be safe and well tolerated in the preterm population with no worsening of symptoms, oxygen requirement, or need for respiratory support. STUDY DESIGN: Prospective, randomized, blinded, pilot study comparing adjunctive treatment with dornase alfa to sham therapy...
January 3, 2017: Pediatric Pulmonology
https://www.readbyqxmd.com/read/28048755/mo-fg-campus-iep1-03-establishment-of-provincial-diagnostic-reference-levels-in-pediatric-imaging
#9
E Tonkopi, K O'Brien
PURPOSE: To establish provincial diagnostic reference levels (DRLs) in pediatric general radiography and computed tomography (CT) as a tool for the optimization of exposure parameters. METHODS: Patient dose survey was conducted in the only pediatric hospital in the province of Nova Scotia. The DRLs were established as the 75th percentile of patient dose distributions in different age groups. For routine radiography projections the DRLs were determined in terms of entrance surface dose (ESD) calculated from the radiation output measurements and the tube current-exposure time product (mAs) recorded for each examination...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28048468/su-d-209-06-study-on-the-dose-conversion-coefficients-in-pediatric-radiography-with-the-development-of-children-voxel-phantoms
#10
Q Liu, W Zhuo, H Liu, Y Liu, T Chen
PURPOSE: Conversion coefficients of organ dose normalized to entrance skin dose (ESD) are widely used to evaluate the organ doses directly using ESD without time-consuming dose measurement, this work aims to investigate the dose conversion coefficients in pediatric chest and abdomen radiography with the development of 5 years and 10 years old children voxel phantoms. METHODS: After segmentation of organs and tissues from CT slice images of ATOM tissue-equivalent phantoms, a 5-year-old and a 10-year-old children computational voxel phantoms were developed for Monte Carlo simulation...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28048279/su-c-207b-05-tissue-segmentation-of-computed-tomography-images-using-a-random-forest-algorithm-a-feasibility-study
#11
D Polan, S Brady, R Kaufman
PURPOSE: Develop an automated Random Forest algorithm for tissue segmentation of CT examinations. METHODS: Seven materials were classified for segmentation: background, lung/internal gas, fat, muscle, solid organ parenchyma, blood/contrast, and bone using Matlab and the Trainable Weka Segmentation (TWS) plugin of FIJI. The following classifier feature filters of TWS were investigated: minimum, maximum, mean, and variance each evaluated over a pixel radius of 2n, (n = 0-4)...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28048011/tu-fg-209-08-distribution-of-the-deviation-index-di-in-digital-radiography-practices-across-the-united-states
#12
A Jones, J Dave, R Fisher, K Hulme, L Rill, D Zamora, A Woodward, S Brady, R MacDougall, L Goldman, S Lang, D Peck, B Apgar, S Shepard, R Uzenoff, C Willis
PURPOSE: To characterize the distribution of the deviation index (DI) in digital radiography practices across the United States. METHODS: DI data was obtained from 10 collaborating institutions in the United States between 2012 and 2015. Each institution complied with the requirements of the Institutional Review Board at their site. DI data from radiographs of the body parts chest, abdomen, pelvis and extremity were analyzed for anteroposterior, posteroanterior, lateral, and decubitus views...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28047768/th-ab-207a-06-the-use-of-realistic-phantoms-to-predict-ct-dose-to-pediatric-patients
#13
D Carver, S Kost, P Segars, N Fraser, D Pickens, R Price, M Stabin
PURPOSE: To predict pediatric patient dose from diagnostic CT scans using Monte Carlo simulation of realistic reference phantoms of various ages, weights, and heights. METHODS: A series of deformable pediatric reference phantoms using Non-Uniform Rational B-Splines (NURBS) was developed for a large range of ages, percentiles, and reference anatomy. Individual bones were modeled using age-dependent factors, and red marrow was modeled as functions of age and spatial distribution based on Cristy1...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28047340/mo-fg-campus-iep2-03-validation-of-an-ssde-to-organ-dose-calculation-methodology-developed-for-pediatric-ct-in-an-adult-population
#14
H Mead, S Brady, R Kaufman
PURPOSE: To discover if a previously published methodology for estimating patient-specific organ dose in a pediatric population (5-55kg) is translatable to the adult sized patient population (> 55 kg). METHODS: An adult male anthropomorphic phantom was scanned with metal oxide semiconductor field effect transistor (MOSFET) dosimeters placed at 23 organ locations in the chest and abdominopelvic regions to determine absolute organ dose. Organ-dose-to-SSDE correlation factors were developed by dividing individual phantom organ doses by SSDE of the phantom; where SSDE was calculated at the center of the scan volume of the chest and abdomen/pelvis separately...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28046867/su-f-p-06-moving-from-computed-radiography-to-digital-radiography-a-collaborative-approach-to-improve-image-quality
#15
D Sandoval, D Valenti, T Bateman, V Norris, G Mlady, R Selwyn
PURPOSE: To bring together radiologists, technologists, and physicists to utilize post-processing techniques in digital radiography (DR) in order to optimize image acquisition and improve image quality. METHODS: Sub-optimal images acquired on a new General Electric (GE) DR system were flagged for follow-up by radiologists and reviewed by technologists and medical physicists. Various exam types from adult musculoskeletal (n=35), adult chest (n=4), and pediatric (n=7) were chosen for review...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28046774/su-f-i-35-establishment-of-drl-and-dose-indicators-for-optimization-of-protectionin-pediatric-ct-in-saudi-arabia
#16
A Al-Haj, A Lobriguito
PURPOSE: To establish the national dose reference level for pediatric CT procedures in Saudi Arabia. It also aims to determine dose indicators that can be used for optimization of protection. METHODS: A retrospective study of patient demographic data, CT exposure parameters and dose indicators in DLP and CTDI volume for pediatric patients was undertaken. The CT procedures were chest, brain and abdomen. A total of 550 patients from 5 medical centers were included in the study...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28045846/lung-ultrasound-as-first-line-examination-for-the-diagnosis-of-community-acquired-pneumonia-in-children
#17
Contantinia Boursiani, Maria Tsolia, Chrysoula Koumanidou, Aikaterini Malagari, Marina Vakaki, Georgios Karapostolakis, Argyro Mazioti, Efthymia Alexopoulou
OBJECTIVES: The diagnosis of pediatric community-acquired pneumonia (CAP) is based on clinical criteria. Even though chest x-ray (CXR) is only recommended in severe cases, it is often requested from physicians in mild cases, thus increasing radiation exposure. Lung ultrasound (LUS) is not included in the diagnostic workup. The objective of this study was to evaluate the diagnostic performance of LUS against CXR. METHODS: Children who presented to the emergency department with clinical signs suggesting CAP and had already been evaluated with a CXR were included in the study...
January 2017: Pediatric Emergency Care
https://www.readbyqxmd.com/read/28043582/mediastinal-lymphadenopathy-in-pediatric-tuberculosis-in-computed-tomography-scan
#18
Payam Mehrain, Amin Momeni Moghaddam, Elham Tavakol, Afshin Amini, Mehrdad Moghimi, Ali Kabir, Ali Akbar Velayati
BACKGROUND/OBJECTIVES: Pediatric tuberculosis is usually a primary infection presenting mainly as mediastinal or hilar adenopathy in computed tomography (CT) scan. In this study, we study the distribution and other CT scan characteristics of mediastinal lymphadenopathy in childhood tuberculosis. METHODS: Chest CT scans of 75 cases of pediatric tuberculosis at Masih Daneshvari Hospital in Tehran, Iran, from 2009 to 2013 were studied regarding characteristics of mediastinal lymphadenopathy...
December 2016: International Journal of Mycobacteriology
https://www.readbyqxmd.com/read/28040386/evaluation-of-new-two-thumb-chest-compression-technique-for-infant-cardiopulmonary-resuscitation-performed-by-novice-physicians-a-randomized-crossover-manikin-trial
#19
Jacek Smereka, Lukasz Szarpak, Adam Smereka, Steve Leung, Kurt Ruetzler
BACKGROUND: The impact of high-quality chest compressions during CPR for the patients' outcome is undisputed, as it is essential for maintaining vital organ perfusion. The aim of our study is to compare the quality of chest compression (CC) and ventilation among the two current standard techniques with our novel "nTTT" technique in infant CPR. METHODS: In this randomized crossover, manikin trial, participants performed CCs using three techniques in a randomized sequence: standard two finger technique (TFT); standard two thumb technique (TTHT), and the 'new two-thumb technique' (nTTT)...
December 19, 2016: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28039505/factors-supporting-cardiomyopathy-screening-among-at-risk-adult-survivors-of-pediatric-malignancies
#20
Cheryl L Cox, Liang Zhu, Rohit P Ojha, Brenda D Steen, Susan Ogg, Leslie L Robison, Melissa M Hudson
PURPOSE: Anthracyclines and chest irradiation place adult survivors of childhood cancer at risk of cardiomyopathy; many survivors do not obtain the recommended screening. Based on our recent clinical trial, the addition of telephone counseling to a printed survivorship care plan more than doubled survivors' risk-based screening. Here, we sought to measure the impact of specific factors targeted in the intervention for their impact on survivors' screening participation. METHODS: Study population-survivors participating in a randomized longitudinal intervention trial...
December 30, 2016: Supportive Care in Cancer: Official Journal of the Multinational Association of Supportive Care in Cancer
keyword
keyword
91542
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"