Read by QxMD icon Read


Lin Xie, Jay Onysko, Howard Morrison
INTRODUCTION: Surveillance of childhood cancer incidence trends can inform etiologic research, policy and programs. This study presents the first population-based report on demographic and geographic variations in incidence trends of detailed pediatric diagnostic groups in Canada. METHODS: The Canadian Cancer Registry data were used to calculate annual age-standardized incidence rates (ASIRs) from 1992 to 2010 among children less than 15 years of age by sex, age and region for the 12 main diagnostic groups and selected subgroups of the International Classification of Childhood Cancer (ICCC), 3rd edition...
March 2018: Health Promotion and Chronic Disease Prevention in Canada
Y R Chai, J J Xing, J B Gao, P J Lü, P Hou, J Liu
Objective: To analyze the effect of preset adaptive statistical iterative reconstruction-V (ASIR-V) on image quality and radiation dose in dual-enhanced abdominal CT and to investigate the optimal ASIR-V in clinic use. Methods: From February 13 to April 30 in 2017, one hundred and eighty patients who received up abdominal CT scan in the First Affiliated Hospital of Zhengzhou University were collected prospectively. All patients underwent arterial phase (AP) and portal venous phase (PVP) enhanced abdominal CT(120 kVp, noise index 10) and were randomly divided into 6 groups according to random number table (A-F, 30 cases in each group)...
March 6, 2018: Zhonghua Yi Xue za Zhi [Chinese medical journal]
Justin C Graves, Peter Elyanu, Christine J Schellack, Barbara Asire, Margaret L Prust, Marta R Prescott, Esther Mirembe, Ivan Lukabwe, Betty Mirembe, Joshua Musinguzi, Sarah A Moberley
BACKGROUND: In 2013, Uganda adopted a test-and-treat policy for HIV patients 15 years or younger. Low retention rates among paediatric and adolescent antiretroviral therapy (ART) initiates could severely limit the impact of this new policy. This evaluation tested the impact of a differentiated care model called Family Clinic Day (FCD), a family-centered appointment scheduling and health education intervention on patient retention and adherence to monthly appointment scheduling. METHODS: We conducted a cluster randomized controlled trial, from October 2014 to March 2015...
2018: PloS One
Bhumika Sudha, Asir John Samuel, Kanimozhi Narkeesh
The aim of the study was to estimate the physical activity (PA) level among the professional college students in North India. One hundred three professional college students in the age group of 18-25 years were recruited by simple random sampling for this cross-sectional online survey. The survey was advertised on the social networking sites (Facebook, WhatsApp) through a link A Short Form of International Physical Activity Questionnaire was used for this survey study. The questionnaire included total 8 questions on the basis of previous 7 days...
February 2018: Journal of Exercise Rehabilitation
Abhishek Midya, Jayasree Chakraborty, Mithat Gönen, Richard K G Do, Amber L Simpson
High-dimensional imaging features extracted from diagnostic imaging, called radiomics, are increasingly reported for diagnosis, prognosis, and response to therapy. Establishing the sensitivity of radiomic features to variation in scan protocols is necessary because acquisition and reconstruction parameters can vary widely across and within institutions. Our objective was to assess the reproducibility of radiomic features derived from computed tomography (CT) images by varying tube current (mA), noise index, and reconstruction [adaptive statistical iterative reconstruction (ASiR)], parameters increasingly varied by institutions seeking to reduce radiation dose in their patients...
January 2018: Journal of Medical Imaging
Chiaki Tominaga, Hiroki Azumi, Mitsunori Goto, Masaaki Taura, Noriyasu Homma, Issei Mori
Edge methods are predominantly used for modulation transfer function (MTF) measurements in computed tomography (CT) images reconstructed using iterative methods. However, edge methods employ a relatively large and distinct test object, which is intended to simulate relatively large and distinct clinical organs. If one wants to assess the image quality of a small low-contrast object that is visually indistinct against a noisy background, a small and indistinct test object is desired. Another concern is that information related to the signal amount is discarded during MTF measurements...
February 23, 2018: Radiological Physics and Technology
Giun-Yi Hung, Li-Yih Lin, Ting-Yen Yu, Chih-Ying Lee, Hsiu-Ju Yen, Jiun-Lin Horng
BACKGROUND: The incidence of hepatoblastoma is not well known in Taiwan. The goal of this study was to investigate the incidence rates of hepatoblastoma by age and sex. METHODS: The data of patients with hepatoblastoma diagnosed from 1995 to 2012 were obtained from the population-based Taiwan Cancer Registry. Incidence rates of hepatoblastoma according to sex and age were analyzed. This study employed the published methods of International Agency for Research on Cancer to calculate the age-standardized incidence rates (ASIRs), standard errors, 95% confidence intervals (CIs), and standardized incidence rate ratios (SIRRs)...
February 16, 2018: Journal of the Chinese Medical Association: JCMA
Y Noda, S Goshima, S Nagata, T Miyoshi, H Kawada, N Kawai, Y Tanahashi, M Matsuo
AIM: To compare right adrenal vein (RAV) visualisation and contrast enhancement degree on adrenal venous phase images reconstructed using adaptive statistical iterative reconstruction (ASiR) and model-based iterative reconstruction (MBIR) techniques. MATERIAL AND METHODS: This prospective study was approved by the institutional review board, and written informed consent was waived. Fifty-seven consecutive patients who underwent adrenal venous phase imaging were enrolled...
February 16, 2018: Clinical Radiology
S Ramachandran, Selvaraj Sudhakar, Fousiya Thaslim, S Veena Kirthika, K Padmanabhan, Asir John Samuel
No abstract text is available yet for this article.
January 2018: Indian Journal of Palliative Care
Maliha Noshin, Asir Intisar Khan, Samia Subrina
Recently, stanene and silicene based nanostructures with low thermal conductivity have incited noteworthy interest due to their prospect in thermoelectrics. Aiming at the possibility of extracting lower thermal conductivity, in this study, we have proposed and modeled stanene/silicene heterobilayer nanoribbons, a new heterostructure and subsequently characterized their thermal transport by using equilibrium molecular dynamics simulation. In addition, the thermal transport in bilayer stanene is also studied and compared...
February 13, 2018: Nanotechnology
Georg Böning, Roman A Rotzinger, Johannes F Kahn, Patrick Freyhardt, Diane M Renz, Martin Maurer, Florian Streitparth
Background Endovascular aneurysm repair (EVAR) requires lifelong surveillance by computed tomography angiography (CTA). This is attended by a substantial accumulation of radiation exposure. Iterative reconstruction (IR) has been introduced to approach dose reduction. Purpose To evaluate adaptive statistical iterative reconstruction (ASIR) at different levels of tube voltage concerning image quality and dose reduction potential in follow-up post EVAR. Material and Methods One hundred CTAs in 67 patients with EVAR were examined using five protocols: protocol A (n = 40) as biphasic standard using filtered back projection (FBP) at 120 kV; protocols B (n = 40), C (n = 10), and D1 (n = 5) biphasic using ASIR at 120, 100, and 80 kV, respectively; and protocol D2 (n = 5) with a monophasic splitbolus ASIR protocol at 80 kV...
January 1, 2018: Acta Radiologica
Asir Gani, Soottawat Benjakul, Pornpot Nuthong
Effects of virgin coconut oil (VCO) at various levels (0-25%) on the properties of croaker surimi gels were studied. As the levels of VCO increased up to 15%, breaking force continuously decreased. No differences in breaking force, deformation and fracture constant were noticeable when VCO of 15-25% was incorporated. Based on texture profile analysis, hardness and chewiness decreased as the level of added VCO increased up to 10%, while no marked changes were observed with the addition of 10-25% VCO. Addition of VCO had no profound impact on springiness, cohesiveness and resilience...
February 2018: Journal of Food Science and Technology
Paolo De Marco, Daniela Origgi
PURPOSE: To assess the noise characteristics of the new adaptive statistical iterative reconstruction (ASiR-V) in comparison to ASiR. METHODS: A water phantom was acquired with common clinical scanning parameters, at five different levels of CTDIvol . Images were reconstructed with different kernels (STD, SOFT, and BONE), different IR levels (40%, 60%, and 100%) and different slice thickness (ST) (0.625 and 2.5 mm), both for ASiR-V and ASiR. Noise properties were investigated and noise power spectrum (NPS) was evaluated...
January 24, 2018: Journal of Applied Clinical Medical Physics
Helle Precht, Oke Gerke, Jesper Thygesen, Kenneth Egstrup, Søren Auscher, Dag Waaler, Jess Lambrechtsen
Background Computed tomography (CT) technology is rapidly evolving and software solution developed to optimize image quality and/or lower radiation dose. Purpose To investigate the influence of adaptive statistical iterative reconstruction (ASIR) at different radiation doses in coronary CT angiography (CCTA) in detailed image quality. Material and Methods A total of 160 CCTA were reconstructed as follows: 55 scans with filtered back projection (FBP) (650 mA), 51 scans (455 mA) with 30% ASIR (ASIR30), and 54 scans (295 mA) with 60% ASIR (ASIR60)...
January 1, 2018: Acta Radiologica
Xueting Li, Rongshou Zheng, Xuemei Li, Haibin Shan, Qi Wu, Yan Wang, Wanqing Chen
Objective: To analyze the trends of incidence rate and age at diagnosis for cervical cancer incidence in China using population-based cancer registration data from 2000 to 2014. Methods: Data were from National Central Cancer Registry of China. Crude incidence rates (CIRs), age-specific incidence rate, age-standardized incidence rates (ASIRs), age percentage distribution, standardized age percentage distribution, mean age at diagnosis and standardized mean age at diagnosis for cervical cancer in all areas of China, urban China and rural China were calculated separately...
December 2017: Chinese Journal of Cancer Research, Chung-kuo Yen Cheng Yen Chiu
Ibrahim A Al-Zahrani, Bander A Alsiri
To identify the prevalence of carbapenem-resistant Klebsiella pneumoniae (CRKP) and the most common types of cabapenemases among CRKP in the Southern (Asir) province hospitals, Saudi Arabia. Methods: The cross-sectional study was conducted between late April and September in 2015. A total of 54 Klebsiella pneumoniae (K. pneumoniae) isolates with reduced sensitivity to carbapenems were obtained from various clinical specimens of the 2 largest hospitals in the Southern province. Minimum inhibitory concentrations (MICs) of carbapenems were confirmed using E-test...
January 2018: Saudi Medical Journal
H P Zhao, P J Lü, L Y Zhang, W R Li, P Hou, J B Gao
Objective: To investigate the value of combined use of half-dose spectral CT based on the automatic spectral imaging mode selection (GSI Assist) and adaptive statistical iterative reconstruction (ASIR) in the CT examination of upper abdomen in obese patients as compared with conventional CT. Methods: Eight-two obese patients (body mass index≥29 kg/m(2)) were prospectively selected from October to December 2016, and contrast-enhanced CT during arterial phase (AP) and portal venous phase (PVP) were carried out in those patients...
December 19, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
Amisha Shah, Mitchell Rees, Erica Kar, Kimberly Bolton, Vincent Lee, Ashok Panigrahy
BACKGROUND: For the past several years, increased levels of imaging radiation and cumulative radiation to children has been a significant concern. Although several measures have been taken to reduce radiation dose during computed tomography (CT) scan, the newer dose reduction software adaptive statistical iterative reconstruction (ASIR) has been an effective technique in reducing radiation dose. To our knowledge, no studies are published that assess the effect of ASIR on extremity CT scans in children...
December 26, 2017: Skeletal Radiology
H X Wang, P J Lü, S W Yue, L Y Chang, Y Li, H P Zhao, W R Li, J B Gao
Objective: To investigate the image quality and radiation dose with wide-detector(80 mm) and adaptive statistical iterative reconstruction-V (ASIR-V) technique at abdominal contrast enhanced CT scan. Methods: In the first phantom experiment part, the percentage of ASIR-V for half dose of combined wide detector with ASIR-V technique as compared with standard-detector (40 mm) technique was determined. The human experiment was performed based on the phantom study, 160 patients underwent contrast-enhanced abdominal CT scan were prospectively collected and divided into the control group (n=40) with image reconstruction using 40% ASIR (group A) and the study group (n=120) with random number table...
December 5, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
Farhana Badar, Shahid Mahmood
OBJECTIVES: To estimate the cancer incidence by age group for the Lahore district population within the Punjab Cancer Registry (PCR), Pakistan. The average annual population of Lahore was 9.8 million in 2010-2012. This is a sequel to a study published earlier. DESIGN: A cross-sectional study. SETTING: The registry has 19 centres in Lahore reporting their data to the coordinating office located within the Shaukat Khanum Memorial Cancer Hospital and Research Center (SKMCH&RC), Lahore, Pakistan...
December 21, 2017: BMJ Open
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"