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Ultrasound testes

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https://www.readbyqxmd.com/read/28432110/anterior-but-not-posterior-choroid-changed-before-and-during-valsalva-manoeuvre-in-healthy-chinese-a-ubm-and-ss-oct-study
#1
Fei Li, Kai Gao, Xingyi Li, Shida Chen, Wenbin Huang, Xiulan Zhang
PURPOSE: To determine if the anterior choroid is involved in ocular change during the Valsalva manoeuvre (VM). MATERIALS AND METHODS: Fifty-three healthy volunteers aged 18-65 years with normal visual field test results and no history of intraocular pressure (IOP) exceeding 21 mm Hg were recruited. Anterior and posterior choroidal changes before and during VM were recorded by ultrasound microscope and swept-source optical coherence tomography, respectively. Parameters of the anterior segment included ciliary body thickness (CBT0), thickness of the choroid at a distance of 4 mm from the root of the iris (CT4), anterior placement of the ciliary body (APCB) and trabecular-ciliary angle (TCA)...
April 21, 2017: British Journal of Ophthalmology
https://www.readbyqxmd.com/read/28432039/simulation-training-evaluating-the-instructor-s-contribution-to-a-wizard-of-oz-simulator-in-obstetrics-and-gynecology-ultrasound-training
#2
Aric Katz, Ronnie Tepper, Avraham Shtub
BACKGROUND: Workplaces today demand graduates who are prepared with field-specific knowledge, advanced social skills, problem-solving skills, and integration capabilities. Meeting these goals with didactic learning (DL) is becoming increasingly difficult. Enhanced training methods that would better prepare tomorrow's graduates must be more engaging and game-like, such as feedback based e-learning or simulation-based training, while saving time. Empirical evidence regarding the effectiveness of advanced learning methods is lacking...
April 21, 2017: JMIR Medical Education
https://www.readbyqxmd.com/read/28431420/generative-retrieval-improves-learning-and-retention-of-cardiac-anatomy-using-transesophageal-echocardiography
#3
Amanda M Kleiman, Katherine T Forkin, Allison J Bechtel, Stephen R Collins, Jennie Z Ma, Edward C Nemergut, Julie L Huffmyer
BACKGROUND: Transesophageal echocardiography (TEE) is a valuable monitor for patients undergoing cardiac and noncardiac surgery as it allows for evaluation of cardiovascular compromise in the perioperative period. It is challenging for anesthesiology residents and medical students to learn to use and interpret TEE in the clinical environment. A critical component of learning to use and interpret TEE is a strong grasp of normal cardiovascular ultrasound anatomy. METHODS: Fifteen fourth-year medical students and 15 post-graduate year (PGY) 1 and 2 anesthesiology residents without prior training in cardiac anesthesia or TEE viewed normal cardiovascular anatomy TEE video clips; participants were randomized to learning cardiac anatomy in generative retrieval (GR) and standard practice (SP) groups...
May 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28431275/learning-non-rigid-deformations-for-robust-constrained-point-based-registration-in-image-guided-mr-trus-prostate-intervention
#4
John A Onofrey, Lawrence H Staib, Saradwata Sarkar, Rajesh Venkataraman, Cayce B Nawaf, Preston C Sprenkle, Xenophon Papademetris
Accurate and robust non-rigid registration of pre-procedure magnetic resonance (MR) imaging to intra-procedure trans-rectal ultrasound (TRUS) is critical for image-guided biopsies of prostate cancer. Prostate cancer is one of the most prevalent forms of cancer and the second leading cause of cancer-related death in men in the United States. TRUS-guided biopsy is the current clinical standard for prostate cancer diagnosis and assessment. State-of-the-art, clinical MR-TRUS image fusion relies upon semi-automated segmentations of the prostate in both the MR and the TRUS images to perform non-rigid surface-based registration of the gland...
April 12, 2017: Medical Image Analysis
https://www.readbyqxmd.com/read/28430731/commentary-on-ultrasound-evaluation-as-a-complementary-test-in-hidradenitis-suppurativa
#5
Gregor B E Jemec
No abstract text is available yet for this article.
April 19, 2017: Dermatologic Surgery: Official Publication for American Society for Dermatologic Surgery [et Al.]
https://www.readbyqxmd.com/read/28430723/colpocleisis-a-survey-of-current-practice-patterns
#6
Keisha Jones, Gary Wang, Robert Romano, Peter St Marie, Oz Harmanli
BACKGROUND: Currently, there are no standard treatment guidelines for colpocleisis. Clinical practice varies widely for this safe and effective procedure. OBJECTIVE: The aim of this study was to evaluate the current practice patterns in the United States among surgeons who perform colpocleisis. METHODS: A 27-item anonymous Web-based survey was sent to all practicing physicians affiliated with the American Urogynecologic Society. It consisted of questions regarding the demographic background of the physicians and their current practice as it relates to colpocleisis...
April 20, 2017: Female Pelvic Medicine & Reconstructive Surgery
https://www.readbyqxmd.com/read/28430714/ultrasound-molecular-imaging-of-inflammation-in-mouse-abdominal-aorta
#7
Shiying Wang, Sunil Unnikrishnan, Elizabeth B Herbst, Alexander L Klibanov, Frank William Mauldin, John A Hossack
OBJECTIVES: The aim of this study was to demonstrate a new clinically translatable ultrasound molecular imaging approach, modulated acoustic radiation force-based imaging, which is capable of rapid and reliable detection of inflammation as validated in mouse abdominal aorta. MATERIALS AND METHODS: Animal studies were approved by the Institutional Animal Care and Use Committee at the University of Virginia. C57BL/6 mice stimulated with tumor necrosis factor α, or fed with a high-fat diet, were used as inflammation (MInflammation) and diet-induced obesity (DIO) (MDIO) models, respectively...
April 20, 2017: Investigative Radiology
https://www.readbyqxmd.com/read/28430684/flurbiprofen-axetil-provides-effective-analgesia-without-changing-the-pregnancy-rate-in-ultrasound-guided-transvaginal-oocyte-retrieval-a-double-blind-randomized-controlled-trial
#8
Hong Zhao, Yi Feng, Yan Jiang, Qun Lu
BACKGROUND: In this prospective double-blind randomized study, we evaluated the analgesic effect and potential effect on pregnancy rate of the nonsteroidal anti-inflammatory drug flurbiprofen axetil in patients undergoing ultrasound-guided transvaginal oocyte retrieval under propofol-remifentanil anesthesia. METHODS: A total of 200 patients scheduled to undergo ultrasound-guided transvaginal oocyte retrieval were randomly allocated to receive 1.5 mg/kg of flurbiprofen axetil (FA group) or placebo (control group) 30 minutes before the procedure...
April 19, 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28430318/teaching-medical-students-ultrasound-guided-vascular-access-which-learning-method-is-best
#9
Alwin Lian, James C R Rippey, Peter J Carr
INTRODUCTION: Ultrasound is recommended to guide insertion of peripheral intravenous vascular cannulae (PIVC) where difficulty is experienced. Ultrasound machines are now common-place and junior doctors are often expected to be able to use them. The educational standards for this skill are highly varied, ranging from no education, to self-guided internet-based education, to formal, face-to-face traditional education. In an attempt to decide which educational technique our institution should introduce, a small pilot trial comparing educational techniques was designed...
April 20, 2017: Journal of Vascular Access
https://www.readbyqxmd.com/read/28430309/variation-in-use-of-technology-among-vascular-access-specialists-an-analysis-of-the-picc1-survey
#10
Vineet Chopra, Latoya Kuhn, David Ratz, Suzanne Winter, Peter J Carr, David Paje, Sarah L Krein
BACKGROUND: While the use of technologies such as ultrasound and electrocardiographic (ECG) guidance systems to place peripherally inserted central catheters (PICCs) has grown, little is known about the clinicians who use these tools or their work settings. METHODS: Using data from a national survey of vascular access specialists, we identified technology users as PICC inserters that: (a) use ultrasound to find a suitable vein for catheter placement; (b) measure catheter-to-vein ratio; and (c) use ECG for PICC placement...
April 20, 2017: Journal of Vascular Access
https://www.readbyqxmd.com/read/28429561/cfdna-screening-performance-accounting-for-and-reducing-test-failures
#11
EDITORIAL
H Cuckle
Over several decades antenatal screening for Down's syndrome steadily evolved from the initial concept of a single second trimester maternal serum marker to complex protocols involving the combination of multiple serum and fetal ultrasound markers, determined within-trimester or sequentially across-trimesters.
April 21, 2017: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/28429475/common-carotid-artery-sonography-versus-transthoracic-echocardiography-for-cardiac-output-measurements-in-intensive-care-unit-patients
#12
Qian-Yi Peng, Li-Na Zhang, Mei-Lin Ai, Li Li, Cheng-Huan Hu, Yan-Xin Zhang, Wei Liu, Qing Feng, Yu Zou, Yu-Hang Ai
OBJECTIVES: This study was designed to test the effectiveness of common carotid artery sonography in comparison with transthoracic echocardiography (TTE) for cardiac output measurements to provide an easier alternative for cardiac output monitoring in the intensive care unit. METHODS: This study included 148 patients who had common carotid artery Doppler examinations and TTE performed within 8 hours of each other, and the cardiac output measurement results were compared with each other...
April 21, 2017: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/28428811/role-of-intraoperative-cholangiography-for-detecting-residual-stones-after-biliary-pancreatitis-still-useful-a-retrospective-study
#13
Abdelrahman Abdelaal, Moamena El-Matbouly, Ibnouf Sulieman, Ahmad Elfaki, Tamer El-Bakary, Sherif Abdelaziem, Salahdin Gehani, Adriana Toro, Isidoro Di Carlo
BACKGROUND: Intraoperative cholangiography (IOC) may detect residual stones in the common bile duct (CBD) after acute biliary pancreatitis (ABP). The aim of the present study is to analyze the utility of IOC in detecting residual stones in patients undergoing cholecystectomy for ABP and if complications are related with this procedure. METHODS: Demographic and clinical factors were assessed in patients with mild ABP who underwent IOC during laparoscopic cholecystectomy...
2017: World Journal of Emergency Surgery: WJES
https://www.readbyqxmd.com/read/28427905/abdominal-aortic-aneurysm-screening-practices-impact-of-the-2014-u-s-preventive-services-task-force-recommendations
#14
Evan J Zucker, Alexander S Misono, Anand M Prabhakar
PURPOSE: To assess changes in abdominal aortic aneurysm (AAA) ultrasound screening associated with the release of revised U.S. Preventive Services Task Force (USPSTF) recommendations on June 24, 2014. METHODS: All AAA screening ultrasound examinations performed in the Massachusetts General Hospital radiology department in the 15 months before and after the new guidelines were retrospectively reviewed to assess changes in examination volume and appropriateness, demographics, aneurysm detection rate and size at diagnosis, frequency and type of incidental findings, and radiologist recommendations...
April 17, 2017: Journal of the American College of Radiology: JACR
https://www.readbyqxmd.com/read/28427687/improved-adsorption-performance-of-nanostructured-composite-by-ultrasonic-wave-optimization-through-response-surface-methodology-isotherm-and-kinetic-studies
#15
Mehdi Dastkhoon, Mehrorang Ghaedi, Arash Asfaram, Alireza Goudarzi, Seyyedeh Maryam Mohammadi, Shaobin Wang
In this work, ultrasound-assisted adsorption of an anionic dye, sunset yellow (SY) and cationic dyes, malachite green (MG), methylene blue (MB) and their ternary dye solutions onto Cu@ Mn-ZnS-NPs-AC from water aqueous was optimized by response surface methodology (RSM) using the central composite design (CCD). The adsorbent was characterized using Field emission scanning electron microscopy (FESEM), X-ray diffraction (XRD), Energy-dispersive X-ray spectroscopy (EDX) and EDX mapping images. The effects of various parameters such as pH, sonication time, adsorbent mass and initial concentrations of SY, MG and MB were examined...
July 2017: Ultrasonics Sonochemistry
https://www.readbyqxmd.com/read/28427669/rapid-ag-sn-ag-transient-liquid-phase-bonding-for-high-temperature-power-devices-packaging-by-the-assistance-of-ultrasound
#16
Huakai Shao, Aiping Wu, Yudian Bao, Yue Zhao, Lei Liu, Guisheng Zou
Rapid transient liquid phase (TLP) bonding process on Ag/Sn/Ag system is achieved in air by the assistance of ultrasonic, which has great potential to be applied to high-temperature power devices packaging. In this study, the influence of ultrasonic effect on the morphology and growth kinetics of Ag3Sn grains, and the joint microstructure, mechanical property and thermal reliability were systematically investigated. Experimental results indicated that the rapid consumption of the "dynamic" transient liquid phase was attributed to the accelerated dissolution of Ag substrate and the extrusion of liquid Sn, which were entirely induced by the complex sonochemical effects on the liquid/solid intermetallic compounds (IMCs) interface...
July 2017: Ultrasonics Sonochemistry
https://www.readbyqxmd.com/read/28427667/membrane-cleaning-with-ultrasonically-driven-bubbles
#17
Fabian Reuter, Sonja Lauterborn, Robert Mettin, Werner Lauterborn
A laboratory filtration plant for drinking water treatment is constructed to study the conditions for purely mechanical in situ cleaning of fouled polymeric membranes by the application of ultrasound. The filtration is done by suction of water with defined constant contamination through a membrane module, a stack of five pairs of flat-sheet ultrafiltration membranes. The short cleaning cycle to remove the cake layer from the membranes includes backwashing, the application of ultrasound and air flushing. A special geometry for sound irradiation of the membranes parallel to their surfaces is chosen...
July 2017: Ultrasonics Sonochemistry
https://www.readbyqxmd.com/read/28427661/sono-dispersion-of-tio2-nanoparticles-over-clinoptilolite-used-in-photocatalytic-hydrogen-production-effect-of-ultrasound-irradiation-during-conventional-synthesis-methods
#18
Rojiar Akbari Sene, G R Moradi, S Sharifnia
Hydrogen evolution via water splitting was investigated over the sonochemically synthesized TiO2-clinoptilolite photocomposites. To this aim, a series of photocatalysts containing 10wt% titania were prepared by impregnation and solid state dispersion (SSD) methods in the presence and absence of ultrasound irradiation. The samples were characterized by XRD, FESEM, EDX, BET, FTIR, PL and UV-vis techniques and tested for the water splitting. The characterization results indicated that ultrasound irradiation endowed the photocatalysts with uniform morphology, higher surface area and more homogenous dispersion...
July 2017: Ultrasonics Sonochemistry
https://www.readbyqxmd.com/read/28427621/engineering-design-and-prototype-development-of-a-full-scale-ultrasound-system-for-virgin-olive-oil-by-means-of-numerical-and-experimental-analysis
#19
Maria Lisa Clodoveo, Vito Moramarco, Antonello Paduano, Raffaele Sacchi, Tiziana Di Palmo, Pasquale Crupi, Filomena Corbo, Vito Pesce, Elia Distaso, Paolo Tamburrano, Riccardo Amirante
The aim of the virgin olive oil extraction process is mainly to obtain the best quality oil from fruits, by only applying mechanical actions while guaranteeing the highest overall efficiency. Currently, the mechanical methods used to extract virgin oils from olives are basically of two types: the discontinuous system (obsolete) and the continuous one. Anyway the system defined as "continuous" is composed of several steps which are not all completely continuous, due to the presence of the malaxer, a device that works in batch...
July 2017: Ultrasonics Sonochemistry
https://www.readbyqxmd.com/read/28427613/disinfection-effect-of-a-continuous-flow-ultrasound-ultraviolet-baffled-reactor-at-a-pilot-scale
#20
Xiaoqin Zhou, Yichang Yan, Zifu Li, Jie Yin
An ultrasound/ultraviolet (US/UV) baffled reactor was developed to fill the gap in ultraviolet (UV) disinfection associated with disinfection efficiency. According to the previously selected operational condition, a continuous-flow US/UV baffled reactor was continuously operated in a wastewater treatment plant at a pilot scale for nearly three months, and the disinfection influent and effluent were analyzed, including fecal coliforms, Escherichia coli, and fecal streptococci. The US/UV baffled reactor could guarantee a high effluent disinfection performance in terms of fecal coliforms removal even with the fluctuation of the secondary effluent...
July 2017: Ultrasonics Sonochemistry
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