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https://www.readbyqxmd.com/read/29332105/the-emergence-of-carbapenem-resistant-klebsiella-pneumoniae-isolates-producing-oxa-48-and-ndm-in-the-southern-asir-province-saudi-arabia
#1
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
https://www.readbyqxmd.com/read/29325319/-application-of-half-dose-spectral-ct-based-on-the-automatic-spectral-imaging-mode-selection-and-adaptive-statistical-iterative-reconstruction-in-the-ct-examination-of-upper-abdomen-in-obese-patients
#2
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]
https://www.readbyqxmd.com/read/29279946/adaptive-statistical-iterative-reconstruction-use-for-radiation-dose-reduction-in-pediatric-lower-extremity-ct-impact-on-diagnostic-image-quality
#3
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
https://www.readbyqxmd.com/read/29275597/-combined-use-of-wide-detector-and-adaptive-statistical-iterative-reconstruction-v-technique-in-abdominal-ct-with-low-radiation-dose
#4
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]
https://www.readbyqxmd.com/read/29273649/epidemiology-of-cancers-in-lahore-pakistan-among-children-adolescents-and-adults-2010-2012-a-cross-sectional-study-part-2
#5
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
https://www.readbyqxmd.com/read/29261354/prospective-comparison-of-standard-versus-low-radiation-dose-ct-enterography-for-the-quantitative-assessment-of-crohn-disease
#6
Greg Rosenfeld, Jacqueline Brown, Patrick M Vos, Jonathon Leipsic, Robert Enns, Brian Bressler
OBJECTIVE: CT enterography (CTE) is sensitive and specific for active inflammatory changes of Crohn disease (CD), but its use has been limited by exposure to ionizing radiation. The objective of this study is to show the noninferiority of a model-based iterative reconstruction (MBIR) technique using lower radiation doses compared with standard-dose CTE in the assessment of CD. SUBJECTS AND METHODS: Patients referred to a hospital radiology department for CTE for the evaluation of CD underwent both a standard examination (used to generate filtered back-projection and adaptive statistical iterative reconstruction [ASIR] images) and low-dose MBIR CTE performed in a random sequence on the same day...
December 20, 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/29229246/microencapsulation-of-saffron-anthocyanins-using-%C3%AE-glucan-and-%C3%AE-cyclodextrin-nutraceutical-morphological-structural-and-the-release-behavior-of-capsules-during-in-vitro-digestion
#7
Mudasir Ahmad, Bisma Ashraf, Asir Gani, Adil Gani
In the present study, the saffron anthocyanins were encapsulated in β-glucan and β-cyclodextrin by spray drying technique to achieve their stability under adverse gastro-enviromental conditions. The microcapsules were subjected to simulated gastric conditions and release behavior of monomeric anthocyanins, antioxidants and phenols were studied. The structural properties of microcapsules were analyzed by SEM and ATR-FTIR spectroscopy. The particle size distribution, density, color, encapsulation efficiency and powder yield of samples were also evaluated...
December 8, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/29216565/incidence-prevalence-mortality-disability-adjusted-life-years-and-risk-factors-of-cancer-in-australia-and-comparison-with-oecd-countries-1990-2015-findings-from-the-global-burden-of-disease-study-2015
#8
Yohannes Adama Melaku, Sarah L Appleton, Tiffany K Gill, Felix A Ogbo, Elizabeth Buckley, Zumin Shi, Tim Driscoll, Robert Adams, Benjamin C Cowie, Christina Fitzmaurice
BACKGROUND: Comparative evidence on the burden, trend, and risk factors of cancer is limited. Using data from the Global Burden of Disease (GBD) study, we aimed to assess cancer burden - incidence, prevalence, mortality, disability-adjusted life years (DALYs) - and attributable risk factors for Australia between 1990 and 2015, and to compare them with those of 34 members of the Organisation for Economic Co-operation and Development (OECD). METHODS: The general GBD cancer estimation methods were used with data input from vital registration systems and cancer registries...
December 4, 2017: Cancer Epidemiology
https://www.readbyqxmd.com/read/29201838/ganoderma-lucidum-protects-rat-brain-tissue-against-trauma-induced-oxidative-stress
#9
Özevren Hüseyin, İrtegün Sevgi, Deveci Engin, Aşır Fırat, Pektanç Gülsüm, Deveci Şenay
Objective: Traumatic brain injury causes tissue damage, breakdown of cerebral blood flow and metabolic regulation. This study aims to investigate the protective influence of antioxidant Ganoderma lucidum (G. lucidum) polysaccharides (GLPs) on brain injury in brain-traumatized rats. Methods: Sprague-Dawley conducted a head-traumatized method on rats by dropping off 300 g weight from 1 m height. Groups were categorized as control, G. lucidum, trauma, trauma+ G. lucidum (20 mL/kg per day via gastric gavage)...
October 2017: Korean Journal of Neurotrauma
https://www.readbyqxmd.com/read/29198945/quantitative-measurements-versus-receiver-operating-characteristics-and-visual-grading-regression-in-ct-images-reconstructed-with-iterative-reconstruction-a-phantom-study
#10
Kristin Jensen, Hilde Kjernlie Andersen, Örjan Smedby, Bjørn Helge Østerås, Anette Aarsnes, Anders Tingberg, Erik Fosse, Anne Catrine Martinsen
RATIONALE AND OBJECTIVES: This study aimed to evaluate the correlation of quantitative measurements with visual grading regression (VGR) and receiver operating characteristics (ROC) analysis in computed tomography (CT) images reconstructed with iterative reconstruction. MATERIALS AND METHODS: CT scans on a liver phantom were performed on CT scanners from GE, Philips, and Toshiba at three dose levels. Images were reconstructed with filtered back projection (FBP) and hybrid iterative techniques (ASiR, iDose, and AIDR 3D of different strengths)...
November 29, 2017: Academic Radiology
https://www.readbyqxmd.com/read/29185265/epidemiology-of-gynecologic-cancers-in-china
#11
REVIEW
Xiyi Jiang, Huijuan Tang, Tianhui Chen
Cancer has become a major disease burden across the globe. It was estimated that 4.29 million new incident cases and 2.81 million death cases of cancer would occur in 2015 in China, with the age-standardized incidence rate (ASIR) of 201.1 per 100,000 and age-standardized mortality rate (ASMR) of 126.9 per 100,000, respectively. For females, 2 of the top 10 most common types of cancer would be gynecologic cancers, with breast cancer being the most prevalent (268.6 thousand new incident cases) and cervical cancer being the 7th most common cancer (98...
January 2018: Journal of Gynecologic Oncology
https://www.readbyqxmd.com/read/29184764/dual-energy-ct-angiography-in-peripheral-arterial-stents-optimal-scanning-protocols-with-regard-to-image-quality-and-radiation-dose
#12
Abdulrahman Almutairi, Zakariya Al Safran, Saif A AlZaabi, Zhonghua Sun
Background: To determine the optimal scanning protocols of dual energy computed tomography angiography (DECTA) in terms of radiation dose and image quality assessment at different keV levels, and compare it with conventional computed tomography angiography (CTA) in patients treated with peripheral arterial stents. Methods: Twenty-nine patients with previous stent placement in peripheral arteries were evaluated with DECTA. Images were reconstructed with virtual monochromatic spectral imaging (VMS) at 65, 68, 70 and 72 keV and adaptive statistical iterative reconstruction (ASIR) at 50% compared with CTA...
October 2017: Quantitative Imaging in Medicine and Surgery
https://www.readbyqxmd.com/read/29180696/stanene-hexagonal-boron-nitride-heterobilayer-structure-and-characterization-of-electronic-property
#13
Asir Intisar Khan, Trisha Chakraborty, Niloy Acharjee, Samia Subrina
The structural and electronic properties of stanene/hexagonal boron nitride (Sn/h-BN) heterobilayer with different stacking patterns are studied using first principle calculations within the framework of density functional theory. The electronic band structure of different stacking patterns shows a direct band gap of ~30 meV at Dirac point and at the Fermi energy level with a Fermi velocity of ~0.53 × 106 ms-1. Linear Dirac dispersion relation is nearly preserved and the calculated small effective mass in the order of 0...
November 27, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29142457/comparison-of-cancer-incidence-and-mortality-in-three-gdp-per-capita-levels-in-china-2013
#14
Zhixun Yang, Rongshou Zheng, Siwei Zhang, Hongmei Zeng, Changfa Xia, He Li, Li Wang, Yanhong Wang, Wanqing Chen
Objective: In this research, the patterns of cancer incidence and mortality in areas with different gross domestic product per capita (GDPPC) levels in China were explored, using data from population-based cancer registries in 2013, collected by the National Central Cancer Registry (NCCR). Methods: Data from 255 cancer registries were qualified and included in this analysis. Based on the GDPPC data of 2014, cities/counties were divided into 3 levels: high-, middle- and low-GDPPC areas, with 40,000 and 80,000 RMB per year as cut points...
October 2017: Chinese Journal of Cancer Research, Chung-kuo Yen Cheng Yen Chiu
https://www.readbyqxmd.com/read/29076347/assessment-of-noise-reduction-potential-and-image-quality-improvement-of-a-new-generation-adaptive-statistical-iterative-reconstruction-asir-v-in-chest-ct
#15
Hui Tang, Nan Yu, Yongjun Jia, Yong Yu, Haifeng Duan, Dong Han, Guangming Ma, Chenglong Ren, Taiping He
OBJECTIVE: To evaluate the image quality improvement and noise reduction in routine dose, non-enhanced chest CT imaging by using a new generation adaptive statistical iterative reconstruction (ASIR-V) in comparison with ASIR algorithm. METHODS: 30 patients who underwent routine dose, non-enhanced chest CT using GE Discovery CT750HU (GE Healthcare, Waukesha, WI) were included. The scan parameters included tube voltage of 120 kVp, automatic tube current modulation to obtain a noise index of 14HU, rotation speed of 0...
November 16, 2017: British Journal of Radiology
https://www.readbyqxmd.com/read/29052019/image-quality-improvements-using-adaptive-statistical-iterative-reconstruction-for-evaluating-chronic-myocardial-infarction-using-iodine-density-images-with-spectral-ct
#16
Junichi Kishimoto, Yasutoshi Ohta, Shinichiro Kitao, Tomomi Watanabe, Toshihide Ogawa
Single-source dual-energy CT (ssDECT) allows the reconstruction of iodine density images (IDIs) from projection based computing. We hypothesized that adding adaptive statistical iterative reconstruction (ASiR) could improve image quality. The aim of our study was to evaluate the effect and determine the optimal blend percentages of ASiR for IDI of myocardial late iodine enhancement (LIE) in the evaluation of chronic myocardial infarction using ssDECT. A total of 28 patients underwent cardiac LIE using a ssDECT scanner...
October 19, 2017: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/29038856/comparison-of-diagnostic-performance-between-1-millisievert-ct-enterography-and-half-standard-dose-ct-enterography-for-evaluating-active-inflammation-in-patients-with-crohn-s-disease
#17
Jung Hee Son, Seung Ho Kim, Een Young Cho, Kyeong Hwa Ryu
PURPOSE: To compare the diagnostic performance of CT enterography (CTE) images obtained at 1 millisievert (mSv) and reconstructed with filtered back projection (FBP) and adaptive statistical iterative reconstruction (ASIR) with those of half-dose CTE images for the evaluation of active inflammation in patients with Crohn's disease. METHODS: Forty-six consecutive patients (mean age 29 years; range 15-59 years) with Crohn's disease underwent CTE which comprised a standard-dose scan at the enteric phase (45 s), a half-dose scan with ASIR at the portal venous phase (70 s), and 1 mSv scans with FBP and ASIR at the delayed phase (90 s) under a fixed 120 kVp and variable mAs...
October 16, 2017: Abdominal Radiology
https://www.readbyqxmd.com/read/29019028/application-of-a-full-model-based-iterative-reconstruction-mbir-in-80%C3%A2-kvp-ultra-low-dose-paranasal-sinus-ct-imaging-of-pediatric-patients
#18
Jihang Sun, Qifeng Zhang, Xiaomin Duan, Chengyue Zhang, Pengpeng Wang, Chenguang Jia, Yong Liu, Yun Peng
OBJECTIVE: To evaluate the clinical application of a full model-based iterative reconstruction (MBIR) algorithm in the ultra-low-dose paranasal sinus CT imaging of children. MATERIALS AND METHODS: In the first phase, 16 low-dose CT dacryocystography (DCG) (80 kV/64 mAs) scans were reconstructed with MBIR and filtered back-projection (FBP) to demonstrate noise reduction capability of MBIR. MBIR images were also compared with the images of 21 standard-dose paranasal sinus patients reconstructed with adaptive statistical iterative reconstruction (ASIR) algorithm...
October 10, 2017: La Radiologia Medica
https://www.readbyqxmd.com/read/28937493/adaptive-statistical-iterative-reconstruction-v-versus-adaptive-statistical-iterative-reconstruction-impact-on-dose-reduction-and-image-quality-in-body-computed-tomography
#19
Marco Gatti, Filippo Marchisio, Marco Fronda, Osvaldo Rampado, Riccardo Faletti, Laura Bergamasco, Roberto Ropolo, Paolo Fonio
OBJECTIVE: The aim of this study was to evaluate the impact on dose reduction and image quality of the new iterative reconstruction technique: adaptive statistical iterative reconstruction (ASIR-V). METHODS: Fifty consecutive oncologic patients acted as case controls undergoing during their follow-up a computed tomography scan both with ASIR and ASIR-V. Each study was analyzed in a double-blinded fashion by 2 radiologists. Both quantitative and qualitative analyses of image quality were conducted...
September 20, 2017: Journal of Computer Assisted Tomography
https://www.readbyqxmd.com/read/28936605/sex-determination-of-a-tunisian-population-by-ct-scan-analysis-of-the-skull
#20
Malek Zaafrane, Mehdi Ben Khelil, Ines Naccache, Ekbel Ezzedine, Frédéric Savall, Norbert Telmon, Najla Mnif, Moncef Hamdoun
It is widely accepted that the estimation of biological attributes in the human skeleton is more accurate when population-specific standards are applied. With the shortage of such data for contemporary North African populations, it is duly required to establish population-specific standards. We present here the first craniometric standards for sex determination of a contemporary Tunisian population. The aim of this study was to analyze the correlation between sex and metric parameters of the skull in this population using CT scan analysis and to generate proper reliable standards for sex determination of a complete or fragmented skull...
September 21, 2017: International Journal of Legal Medicine
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