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https://www.readbyqxmd.com/read/29241024/age-and-gender-associated-liver-physiological-t1rho-dynamics-demonstrated-with-a-clinically-applicable-single-breathhold-acquisition
#1
Yì Xiáng J Wáng, Min Deng, Jiang Lin, Anthony W L Kwok, Eric K W Liu, Weitian Chen
To understand women's and men's physiological ranges of liver T1rho relaxation time measured with a single breathhold black blood sequence, this healthy volunteer study was conducted in 62 women (mean age, 38.9 y; range, 18-75 y) and 34 men (mean age, 44.7 y; range, 24-80 y). Approval from the institutional ethics committee was obtained. Magnetic resonance imaging was performed with a 3.0T scanner with six spin-lock times of 0, 10, 20, 25, 35, and 50 ms and a single breathhold of 12 s per slice acquisition...
December 1, 2017: SLAS Technology
https://www.readbyqxmd.com/read/29240796/improving-the-quality-of-child-anthropometry-manual-anthropometry-in-the-body-imaging-for-nutritional-assessment-study-bina
#2
Joel Conkle, Usha Ramakrishnan, Rafael Flores-Ayala, Parminder S Suchdev, Reynaldo Martorell
Anthropometric data collected in clinics and surveys are often inaccurate and unreliable due to measurement error. The Body Imaging for Nutritional Assessment Study (BINA) evaluated the ability of 3D imaging to correctly measure stature, head circumference (HC) and arm circumference (MUAC) for children under five years of age. This paper describes the protocol for and the quality of manual anthropometric measurements in BINA, a study conducted in 2016-17 in Atlanta, USA. Quality was evaluated by examining digit preference, biological plausibility of z-scores, z-score standard deviations, and reliability...
2017: PloS One
https://www.readbyqxmd.com/read/29240541/surveillance-or-metastasis-directed-therapy-for-oligometastatic-prostate-cancer-recurrence-a-prospective-randomized-multicenter-phase-ii-trial
#3
Piet Ost, Dries Reynders, Karel Decaestecker, Valérie Fonteyne, Nicolaas Lumen, Aurélie De Bruycker, Bieke Lambert, Louke Delrue, Renée Bultijnck, Tom Claeys, Els Goetghebeur, Geert Villeirs, Kathia De Man, Filip Ameye, Ignace Billiet, Steven Joniau, Friedl Vanhaverbeke, Gert De Meerleer
Purpose Retrospective studies suggest that metastasis-directed therapy (MDT) for oligorecurrent prostate cancer (PCa) improves progression-free survival. We aimed to assess the benefit of MDT in a randomized phase II trial. Patients and Methods In this multicenter, randomized, phase II study, patients with asymptomatic PCa were eligible if they had had a biochemical recurrence after primary PCa treatment with curative intent, three or fewer extracranial metastatic lesions on choline positron emission tomography-computed tomography, and serum testosterone levels > 50 ng/mL...
December 14, 2017: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/29240422/high-in-vivo-stability-of-64cu-labeled-cross-bridged-chelators-is-a-crucial-factor-in-improved-tumor-imaging-of-rgd-peptide-conjugates
#4
Swarbhanu Sarkar, Nikunj Bhatt, Yeong Su Ha, Phuong Tu Huynh, Nisarg Soni, Woong Hee Lee, Yong Jin Lee, Jung Young Kim, Darpan N Pandya, Gwang Il An, Kyo Chul Lee, Yongmin Chang, Jeongsoo Yoo
Although the importance of bifunctional chelators (BFCs) is well recognized, the chemophysical parameters of chelators that govern the biological behavior of the corresponding bioconjugates have not been clearly elucidated. Here, five BFCs closely related in structure were conjugated with a cyclic RGD peptide and radiolabeled with Cu-64 ions. Various biophysical and chemical properties of the Cu(II) complexes were analyzed with the aim of identifying correlations between individual factors and the biological behavior of the conjugates...
December 14, 2017: Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/29240340/update-on-current-care-guideline-memory-disorders
#5
(no author information available yet)
Any complaint about memory should be examined. Diagnosis is based on international criteria. Basic evaluation consists of medical history, clinical evaluation, cognitive tests and brain imaging. When a diagnosis of Alzheimer's disease (AD), AD with cerebrovascular disease or with Lewy Body disease (LBD), or Dementia associated with Parkinson's disease or LBD is made, evidence-based medical therapy (acetylcholine esterase inhibitor or memantine) is indicated as a part of comprehensive care. In frontotemporal degenerations, these drugs are ineffective...
2017: Duodecim; Lääketieteellinen Aikakauskirja
https://www.readbyqxmd.com/read/29240313/deconvolution-of-images-from-3d-printed-cells-in-layers-on-a-chip
#6
Sean Yu, Pranav Joshi, Yi Ju Park, Kyeong-Nam Yu, Moo-Yeal Lee
Layer-by-layer cell printing is useful in mimicking layered tissue structures inside the human body and has great potential for being a promising tool in the field of tissue engineering, regenerative medicine, and drug discovery. However, imaging human cells cultured in multiple hydrogel layers in 3D-printed tissue constructs is challenging as the cells are not in a single focal plane. Although confocal microscopy could be a potential solution for this issue, it compromises the throughput which is a key factor in rapidly screening drug efficacy and toxicity in pharmaceutical industries...
December 14, 2017: Biotechnology Progress
https://www.readbyqxmd.com/read/29239938/latest-advances-in-ultrasound-assessment-of-salivary-glands-in-sj%C3%A3-gren-syndrome
#7
María Victoria Martire, María Lida Santiago, Tomas Cazenave, Marwin Gutierrez
OBJECTIVE: There are different imaging techniques to assess the parotid glands (i.e., sialography, salivary gland scintigraphy) in patients with Sjögren syndrome (SS). However, their use is limited by the invasive character or high cost. Ultrasound (US) is gaining interest by rheumatologists as a complementary diagnostic tool for SS. To date, there is an increasing body of evidence supporting its sensitivity in the assessment of salivary glands in SS. The aim of our study was to analyze the potential role of US as a diagnostic and prognostic tool in SS and to discuss existing evidence to support its application use...
December 12, 2017: Journal of Clinical Rheumatology: Practical Reports on Rheumatic & Musculoskeletal Diseases
https://www.readbyqxmd.com/read/29239712/multiparametric-mr-imaging-of-age-related-changes-in-healthy-thigh-muscles
#8
Min A Yoon, Suk-Joo Hong, Min Cheol Ku, Chang Ho Kang, Kyung-Sik Ahn, Baek Hyun Kim
Purpose To use multiparametric magnetic resonance (MR) imaging to assess for and establish age-related differences in healthy thigh muscles. Materials and Methods Ninety-five subjects (47 men, 48 women; median age, 47 years) with healthy body mass index were grouped according to age: 30-39 years (n = 25), 40-49 years (n = 25), 50-59 years (n = 25), and 60-69 years (n = 20). Multiparametric MR imaging (intravoxel incoherent motion diffusion-weighted, diffusion-tensor, multiecho Dixon, and dynamic contrast material-enhanced MR imaging) was performed at 3...
December 14, 2017: Radiology
https://www.readbyqxmd.com/read/29239351/association-of-serum-uric-acid-levels-with-osteoporosis-and-bone-turnover-markers-in-a-chinese-population
#9
Dan-Dan Yan, Jie Wang, Xu-Hong Hou, Yu-Qian Bao, Zhen-Lin Zhang, Cheng Hu, Wei-Ping Jia
Recent evidence shows that uric acid is protective against some neurological diseases, but can be detrimental in many metabolic and cardiovascular disorders. In this study, we examined the association between serum uric acid levels and bone metabolism in Chinese males and postmenopausal females. A total of 943 males and 4256 postmenopausal females were recruited in Shanghai. The levels of serum uric acid and bone turnover markers (BTMs) were detected along with other biochemical traits. In addition, the fat distribution was calculated through MRI and image analysis software, and bone mineral density (BMD) was determined using dual-energy X-ray absorptiometry...
December 14, 2017: Acta Pharmacologica Sinica
https://www.readbyqxmd.com/read/29238854/effect-of-weight-extremes-on-ventricular-volumes-and-myocardial-strain-in-repaired-tetralogy-of-fallot-as-measured-by-cmr
#10
Scott A Simpson, Suzanne L Field, Meng Xu, Benjamin R Saville, David A Parra, Jonathan H Soslow
Pulmonary valve replacement (PVR) in patients with repaired tetralogy of Fallot (rTOF-TAP) is often based on cardiac MRI (CMR) right ventricular (RV) volumes indexed to body surface area (BSA). Weight extremes result in increased patient morbidity and affect indexed measurements. We hypothesized that patients with rTOF-TAP at extremes of weight have (1) over- or underestimated indexed volumes and (2) altered parameters of cardiac function. CMRs in patients with rTOF-TAP were retrospectively reviewed; analysis included right and left ventricular (LV) volumes and ejection fractions (EF) and peak global LV circumferential strain (ε cc) from myocardial tagged images...
December 14, 2017: Pediatric Cardiology
https://www.readbyqxmd.com/read/29238320/understanding-appearance-enhancing-drug-use-in-sport-using-an-enactive-approach-to-body-image
#11
Denis Hauw, Jean Bilard
From an enactive approach to human activity, we suggest that the use of appearance-enhancing drugs is better explained by the sense-making related to body image rather than the cognitive evaluation of social norms about appearance and consequent psychopathology-oriented approach. After reviewing the main psychological disorders thought to link body image issues to the use of appearance-enhancing substances, we sketch a flexible, dynamic and embedded account of body image defined as the individual's propensity to act and experience in specific situations...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/29237400/accuracy-of-acute-burns-diagnosis-made-using-smartphones-and-tablets-a-questionnaire-based-study-among-medical-experts
#12
Lisa Blom, Constance Boissin, Nikki Allorto, Lee Wallis, Marie Hasselberg, Lucie Laflamme
BACKGROUND: Remote assistance for burns by medical experts can support nurses and general physicians in emergency care with diagnostic and management advice. Previous studies indicate a high diagnostic accuracy based on images viewed on a computer screen, but whether image-based analysis by experts using handheld devices is accurate remains to be determined. METHOD: A review of patient data from eight emergency centres in the Western Cape, South Africa, revealed 10 typical cases of burns commonly seen in children and adults...
December 13, 2017: BMC Emergency Medicine
https://www.readbyqxmd.com/read/29236642/noninvasive-cardiac-radiation-for-ablation-of-ventricular-tachycardia
#13
Phillip S Cuculich, Matthew R Schill, Rojano Kashani, Sasa Mutic, Adam Lang, Daniel Cooper, Mitchell Faddis, Marye Gleva, Amit Noheria, Timothy W Smith, Dennis Hallahan, Yoram Rudy, Clifford G Robinson
BACKGROUND: Recent advances have enabled noninvasive mapping of cardiac arrhythmias with electrocardiographic imaging and noninvasive delivery of precise ablative radiation with stereotactic body radiation therapy (SBRT). We combined these techniques to perform catheter-free, electrophysiology-guided, noninvasive cardiac radioablation for ventricular tachycardia. METHODS: We targeted arrhythmogenic scar regions by combining anatomical imaging with noninvasive electrocardiographic imaging during ventricular tachycardia that was induced by means of an implantable cardioverter-defibrillator (ICD)...
December 14, 2017: New England Journal of Medicine
https://www.readbyqxmd.com/read/29234903/biodistribution-and-radiation-dosimetry-of-64cu-copper-dichloride-first-in-human-study-in-healthy-volunteers
#14
M A Avila-Rodriguez, C Rios, J Carrasco-Hernandez, J C Manrique-Arias, R Martinez-Hernandez, F O García-Pérez, A R Jalilian, E Martinez-Rodriguez, M E Romero-Piña, A Diaz-Ruiz
BACKGROUND: In recent years, Copper-64 (T1/2 = 12.7 h) in the chemical form of copper dichloride ([64Cu]CuCl2) has been identified as a potential agent for PET imaging and radionuclide therapy targeting the human copper transporter 1, which is overexpressed in a variety of cancer cells. Limited human biodistribution and radiation dosimetry data is available for this tracer. The aim of this research was to determine the biodistribution and estimate the radiation dosimetry of [64Cu]CuCl2, using whole-body (WB) PET scans in healthy volunteers...
December 12, 2017: EJNMMI Research
https://www.readbyqxmd.com/read/29234352/assessment-of-osteoporosis-in-injured-older-women-admitted-to-a-safety-net-level-one-trauma-center-a-unique-opportunity-to-fulfill-an-unmet-need
#15
Elisabeth S Young, May J Reed, Tam N Pham, Joel A Gross, Lisa A Taitsman, Stephen J Kaplan
Background: Older trauma patients often undergo computed tomography (CT) as part of the initial work-up. CT imaging can also be used opportunistically to measure bone density and assess osteoporosis. Methods: In this retrospective cohort study, osteoporosis was ascertained from admission CT scans in women aged ≥65 admitted to the ICU for traumatic injury during a 3-year period at a single, safety-net, level 1 trauma center. Osteoporosis was defined by established CT-based criteria of average L1 vertebral body Hounsfield units <110...
2017: Current Gerontology and Geriatrics Research
https://www.readbyqxmd.com/read/29234231/spectral-domain-optical-coherence-tomography-and-en-face-imaging-in-presumed-ocular-chalcosis
#16
Neha Goel
A 35-year-old male, with a history of injury sustained three years back, underwent pars plana vitrectomy with intravitreal copper foreign body removal. Post-operatively, visual acuity improved; however, glistening refractile particles were seen at the macula. Spectral domain optical coherence tomography and en-face imaging were performed to localise the level of the deposits. To the best of our knowledge, this is the first such documentation in presumed ocular chalcosis.
October 2017: Saudi Journal of Ophthalmology: Official Journal of the Saudi Ophthalmological Society
https://www.readbyqxmd.com/read/29234150/the-shallow-structure-of-solfatara-volcano-italy-revealed-by-dense-wide-aperture-seismic-profiling
#17
Pier Paolo G Bruno, Stefano Maraio, Gaetano Festa
Two active-source, high-resolution seismic profiles were acquired in the Solfatara tuff cone in May and November 2014, with dense, wide-aperture arrays. Common Receiver Surface processing was crucial in improving signal-to-noise ratio and reflector continuity. These surveys provide, for the first time, high-resolution seismic images of the Solfatara crater, depicting a ~400 m deep asymmetrical crater filled by volcanoclastic sediments and rocks and carved within an overall non-reflective pre-eruptive basement showing features consistent with the emplacement of shallow intrusive bodies...
December 12, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29234028/the-representation-of-colored-objects-in-macaque-color-patches
#18
Le Chang, Pinglei Bao, Doris Y Tsao
An important question about color vision is how does the brain represent the color of an object? The recent discovery of "color patches" in macaque inferotemporal (IT) cortex, the part of the brain responsible for object recognition, makes this problem experimentally tractable. Here we recorded neurons in three color patches, middle color patch CLC (central lateral color patch), and two anterior color patches ALC (anterior lateral color patch) and AMC (anterior medial color patch), while presenting images of objects systematically varied in hue...
December 12, 2017: Nature Communications
https://www.readbyqxmd.com/read/29233196/online-prevention-of-disordered-eating-in-at-risk-young-adult-women-a-two-country-pragmatic-randomized-controlled-trial
#19
Simon M Wilksch, Anne O'Shea, C Barr Taylor, Denise Wilfley, Corinna Jacobi, Tracey D Wade
BACKGROUND: Disordered eating (DE) is a widespread, serious problem. Efficacious prevention programs that can be delivered at-scale are needed. METHODS: A pragmatic randomized controlled trial of two online programs was conducted. Participants were young-adult women from Australia and New Zealand seeking to improve their body image. Media Smart-Targeted (MS-T) and Student Bodies (SB) were both 9-module interventions released weekly, whilst control participants received positive body image information...
December 13, 2017: Psychological Medicine
https://www.readbyqxmd.com/read/29232333/structural-analysis-and-comprehensive-surgical-outcomes-of-the-sutureless-intrascleral-fixation-of-secondary-intraocular-lenses-in-human-eyes
#20
Bozho Todorich, Maxwell S Stem, Keshav Kooragayala, Aristomenis Thanos, Lisa J Faia, George A Williams, Tarek S Hassan, Maria A Woodward, Jeremy D Wolfe
PURPOSE: To describe surgical outcomes and structural characteristics of intraocular lenses (IOLs) implanted with transconjunctival sutureless intrascleral (SIS) fixation in human eyes. DESIGN: Retrospective interventional surgical case series involving live and cadaveric human eyes. METHODS: In this study, we investigated the surgical outcomes and structural anatomy of secondary IOLs implanted with the SIS technique in human eyes. All cases involving SIS IOL fixation performed at a single academic center from January 1, 2012, through July 30, 2016, were reviewed to describe the surgical technique, common indications, clinical outcomes, and the rate of common operative complications...
December 11, 2017: Retina
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