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https://www.readbyqxmd.com/read/28719818/insights-into-the-unique-functionality-of-inorganic-micro-nanoparticles-for-versatile-ultrasound-theranostics
#1
REVIEW
Xiaoqin Qian, Xiaoxia Han, Yu Chen
The clinical ultrasound (US)-based theranostic biomedicine suffers from the critical issue that traditional microbubbles (MBs) have lots of drawbacks such as low stability, large particle size, difficult structural control, etc. The unique composition, structure and functionality of inorganic micro/nanoplatforms have shown their great prospect for solving these critical issues and drawbacks of traditional organic MBs. This review summarizes and discusses the state-of-art development on exploring inorganic micro/nanoparticles for versatile US-based biomedical applications, ranging from US imaging, photoacoustic imaging, sonodynamic therapy, high intensity-focused US ablation and US-triggered chemotherapy...
July 11, 2017: Biomaterials
https://www.readbyqxmd.com/read/28719480/a-rare-pediatric-case-of-posttraumatic-pseudoaneurysm-case-report-and-literature-review
#2
Ada Gu, April J Kam
Posttraumatic pseudoaneurysms are extremely rare in pediatric populations. In many cases, pseudoaneurysms may be confused with abscesses, epidermoid cysts, arteriovenous fistula, foreign objects, and ganglion cysts, as well as tumors. They are associated with distinguishing findings of "pulsatile mass, a palpable thrill, and an audible to-and-fro murmur" (1), which can be confirmed by various imaging techniques. In this report, we describe the case of a 4-year-old boy who presented to the pediatric emergency department 3 weeks after falling and subsequently getting cut by glass...
July 17, 2017: Pediatric Emergency Care
https://www.readbyqxmd.com/read/28719254/prevalence-and-risk-factors-for-human-cystic-echinococcosis-in-the-cusco-region-of-the-peruvian-highlands-diagnosed-using-focused-abdominal-ultrasound
#3
Francesca Tamarozzi, Amy Hou, Maria Luisa Morales, Maria Teresa Giordani, Freddy Vilca, Karen Mozo, Ruben Bascope, A Clinton White, Enrico Brunetti, Lin Chen, Miguel M Cabada
AbstractLatin America is among the highly endemic regions for cystic echinococcosis (CE). In Peru, an estimated 1,139 disability-adjusted life years are lost annually from surgical treatment of CE. This is comparable with the combined total for Argentina, Brazil, Uruguay, and Chile. The prevalence of human infection has been investigated in the central Peruvian Andes, but there are no community-based screening data from other regions of Peru. We carried out a population survey in January 2015 using abdominal ultrasound to estimate the prevalence of abdominal CE in the Canas and Canchis provinces, in the Cusco region of Peru...
June 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28718950/radiofrequency-ablation-for-the-management-of-thyroid-nodules-a-critical-appraisal-of-the-literature
#4
REVIEW
Roberto Cesareo, Andrea Palermo, Valerio Pasqualini, Roberto Cianni, Gianluigi Gaspa, Silvia Manfrini, Claudio Maurizio Pacella
The majority of benign thyroid nodules are asymptomatic, remain stable in size, and do not require treatment. However, a minority of patients with growing nodules may have local symptoms or cosmetic concerns, and thus demand surgical therapy. The timely use of ultrasound-guided, minimally invasive thermal therapies has changed the natural history of benign, enlarging thyroid nodules (TNs). These procedures produce persistent shrinkage of TNs and an improvement of local symptoms. Among the various procedures, percutaneous ethanol injection (PEI) represents the first-line treatment for thyroid cysts, while in solid cold nodules, laser and radiofrequency ablation (RFA) have proven to be very effective and safe techniques in producing significant volume reduction that remains stable over several years...
July 18, 2017: Clinical Endocrinology
https://www.readbyqxmd.com/read/28718944/the-effect-of-routine-radiological-reporting-of-thyroid-incidentalomas-on-rates-of-thyroid-needle-biopsy-thyroid-surgery-and-detection-of-thyroid-malignancy
#5
J D Sinnott, R Mortimer, J Smith, E Skelton, K Drinkwater, D Lipscomb, D C Howlett
OBJECTIVE: This study looked at the effect of a changing radiology reporting policy to routinely review the thyroid gland where visible and report on any thyroid lesion, recommending further investigation as appropriate. CONTEXT: Incidentaloma is a term used to describe a lesion found on imaging unrelated to the clinical issue under investigation. There is variability in the radiological reporting of thyroid incidentalomas and conflicting recommendations as to how these lesions should be managed...
July 18, 2017: Clinical Endocrinology
https://www.readbyqxmd.com/read/28718938/quality-control-of-ultrasound-for-fetal-biometry-results-from-the-intergrowth-21-st-project
#6
Angelo Cavallaro, Stephen T Ash, Raffaele Napolitano, Sikolia Wanyonyi, Eric O Ohuma, Malid Molloholli, Joyce Sande, Ippokratis Sarris, Christos Ioannou, Tess Norris, Vera Donadono, Maria Carvalho, Manorama Purwar, Fernando C Barros, Yasmin A Jaffer, Enrico Bertino, Ruyan Pang, Michael G Gravett, Laurent J Salomon, Julia Alison Noble, Douglas G Altman, Aris T Papageorghiou
OBJECTIVES: To assess a comprehensive package of ultrasound quality control in a large multicentre study of fetal growth - the Fetal Growth Longitudinal Study of the INTERGROWTH-21(st) Project. METHODS: We performed quality control (QC) measures on 20,313 ultrasound scan images taken prospectively from 4,321 fetuses at 14-41 weeks' gestation in eight geographical locations. At the time of each ultrasound examination, three fetal biometric variables were measured in triplicate on separately generated images: head circumference (HC), abdominal circumference (AC) and femur length (FL)...
July 18, 2017: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/28718082/low-first-trimester-papp-a-in-ivf-fresh-and-frozen-thawed-pregnancies-likely-due-to-a-biological-cause
#7
Lauren P Hunt, A M McInerney-Leo, S Sinnott, B Sutton, R Cincotta, G Duncombe, J Chua, M Peterson
PURPOSE: The purpose of this study is to confirm a difference in the first-trimester screen maternal biochemistry and false-positive rates (FPR) between pregnancies conceived spontaneously and those conceived via assisted reproductive technologies (ART). METHODS: Retrospective analysis of the complete population of women (17,889 pregnancies) who had undergone first-trimester screening between January 2004 and September 2009 at three private ultrasound clinics in Queensland, Australia was used in the study...
July 17, 2017: Journal of Assisted Reproduction and Genetics
https://www.readbyqxmd.com/read/28718042/contrast-enhanced-ultrasound-for-focal-liver-lesions-how-accurate-is-it
#8
Richard G Barr
With the recent FDA approval for characterization of focal liver lesions (FLL) in both pediatric and adult patients using Lumason (sulfur hexafluoride microbubbles), increased use of ultrasound contrast for routine clinical use is expected. This agent has been available for many years in Europe and Asia, and a large body of literature is available regarding the sensitivity and specificity of this agent. In addition, a few studies have directly compared CEUS to CECT and CEMRI for the characterization of focal liver lesions...
July 17, 2017: Abdominal Radiology
https://www.readbyqxmd.com/read/28717699/opportunistic-breast-cancer-education-and-screening-in-rural-honduras
#9
Linda S Kennedy, Suyapa A Bejarano, Tracy L Onega, Derek S Stenquist, Mary D Chamberlin
PURPOSE: In Honduras, the breast cancer burden is high, and access to women's health services is low. This project tested the connection of community-based breast cancer detection with clinical diagnosis and treatment in a tightly linked and quickly facilitated format. METHODS: The Norris Cotton Cancer Center at Dartmouth College partnered with the Honduran cancer hospital La Liga Contra el Cancer to expand a cervical cancer screening program, which included self-breast exam (SBE) education and clinical breast exams (CBEs), to assess patient attitudes about and uptake of breast cancer education and screening services...
August 2016: Journal of Global Oncology
https://www.readbyqxmd.com/read/28717629/ultrasound-measures-of-tendon-thickness-intra-rater-inter-rater-and-inter-machine-reliability
#10
María Elena Del Baño-Aledo, Jacinto Javier Martínez-Payá, José Ríos-Díaz, Silvia Mejías-Suárez, Sergio Serrano-Carmona, Ana de Groot-Ferrando
BACKGROUND: Ultrasound imaging is often used by physiotherapists and other healthcare professionals but the reliability of image acquisition with different ultrasound machines is unknown. The objective was to compare the intra-rater, inter-rater and intermachine reliability of thickness measurements of the plantar fascia (PF), Achilles tendon (AT), patellar tendon (PT) and elbow common extensor tendon (ECET) with musculoskeletal ultrasound imaging (MSUS). METHODS: Tendon thickness was measured in four anatomical structures (14 participants, 28 images per tendon) by two sonographers and with two different ultrasound machines...
January 2017: Muscles, Ligaments and Tendons Journal
https://www.readbyqxmd.com/read/28717615/outcomes-of-prolotherapy-for-intra-tendinous-achilles-tears-a-case-series
#11
Otto Chan, Ben Havard, Sarah Morton, Mel Pritchard, Nicola Maffulli, Tom Crisp, Nat Padhiar, Jeremy David Perry, John King, Dylan Morrissey
BACKGROUND: The intra-tendinous tear is a new pathology that is defined as a discontinuity of fibres situated entirely within the tendon. Prolotherapy involves injecting an irritant, such as hyperosmolar dextrose, to stimulate a tissue healing response and ultimately reduce pain. METHODS: 43 consecutive patients diagnosed with an intra-tendinous tear were included (27 males: 16 females, mean (SD) age 41 (11.3). Patients were injected with 0.4ml-1.5ml (mean 0.8ml) of 50% dextrose and 0...
January 2017: Muscles, Ligaments and Tendons Journal
https://www.readbyqxmd.com/read/28717580/photoacoustic-ultrasound-dual-imaging-of-human-thyroid-cancers-an-initial-clinical-study
#12
Meng Yang, Lingyi Zhao, Xujin He, Na Su, ChenYang Zhao, Hewen Tang, Tao Hong, Wenbo Li, Fang Yang, Lin Lin, Bing Zhang, Rui Zhang, Yuxin Jiang, Changhui Li
We reported an initial clinical study of in vivo human thyroid by a photoacoustic/ultrasound handheld probe. Our dual-modality system is based on a high-end clinical ultrasound machine. Both healthy and cancerous thyroids were imaged non-invasively, and we compared the photoacoustic imaging with color Doppler ultrasound. The results of photoacoustic thyroid imaging could reveal many blood vessels that were not sensitive for Doppler ultrasound. Our study demonstrated that photoacoustic imaging could provide important complementary information for traditional ultrasound thyroid examination, which has a great potential for clinical diagnosis...
July 1, 2017: Biomedical Optics Express
https://www.readbyqxmd.com/read/28717310/cytological-endometritis-and-its-agreement-with-ultrasound-examination-in-postpartum-beef-cows
#13
N Salah, N Yimer
BACKGROUND: Endometritis, which is one of the most common diseases in dairy cows postpartum, causes severe economic losses, including increased open days, calving intervals, and numbers of services to achieve conception. AIM: This study aimed to evaluate the ultrasound method and its agreement with the endometrium cytology method, which is used to diagnose cytological endometritis in beef cows. Moreover, we determined which method has higher sensitivity and specificity at 4 and 5 weeks postpartum...
June 2017: Veterinary World
https://www.readbyqxmd.com/read/28717121/impact-of-doppler-ultrasound-on-diagnosis-and-therapy-control-of-lienalis-steal-syndrome-after-liver-transplantation
#14
Eva M Teegen, Timm Denecke, Rosa B Schmuck, Robert Öllinger, Dominik Geisel, Johann Pratschke, Sascha S Chopra
BACKGROUND Lienalis steal syndrome is a rare complication after orthotopic liver transplantation leading to severe complications. Routine duplex sonography allows early and safe detection of lienalis steal syndrome and secondarily helps to monitor the outcome by evaluating the hemodynamics. MATERIAL AND METHODS This analysis included eight patients who after orthotopic liver transplantation needed splenic artery embolization due to lienalis steal syndrome. Lienalis steal syndrome was assumed in case of elevated transaminases, bilirubinemia or persistent ascites, and the absence of further pathologies...
July 18, 2017: Annals of Transplantation: Quarterly of the Polish Transplantation Society
https://www.readbyqxmd.com/read/28716557/is-the-score-chart-underestimating-the-real-cardiovascular-cv-risk-of-patients-with-psoriatic-arthritis-prevalence-of-subclinical-cv-disease-detected-by-carotid-ultrasound
#15
María Paz Martínez-Vidal, Cristina Fernández-Carballido
OBJECTIVES: To analyse the cardiovascular risk according to the SCORE chart in a series of patients with psoriatic arthritis, and to study the presence of subclinical cardiovascular disease by carotid ultrasound. METHODS: Cross-sectional descriptive study of patients with psoriatic arthritis attended in a tertiary hospital. The presence of classical cardiovascular risk factors and the clinical characteristics of the patients were recorded. The cardiovascular risk was calculated with SCORE, calibrated for Spain...
July 14, 2017: Joint, Bone, Spine: Revue du Rhumatisme
https://www.readbyqxmd.com/read/28716509/assessing-the-value-of-endoscopic-ultrasound-in-predicting-symptom-severity-and-long-term-clinical-course-in-chronic-pancreatitis
#16
Neal Bhutiani, John S Richey, Amber N Brown, Joshua Tierney, Stephen A McClave, Michael H Bahr, Gary C Vitale
BACKGROUND: To date, no studies have evaluated the correlation between number of endoscopic ultrasound (EUS) criteria met for chronic pancreatitis (CP) and symptom severity over the course of the disease. This study assessed the relationship between number of EUS-based diagnostic criteria for CP and CP severity over time. METHODS: A University of Louisville database was queried for patients undergoing EUS due to concern for chronic pancreatitis between 2005 and 2016...
July 15, 2017: HPB: the Official Journal of the International Hepato Pancreato Biliary Association
https://www.readbyqxmd.com/read/28716431/freehand-3-d-ultrasound-imaging-a-systematic-review
#17
REVIEW
Mohammad Hamed Mozaffari, Won-Sook Lee
Two-dimensional ultrasound (US) imaging has been successfully used in clinical applications as a low-cost, portable and non-invasive image modality for more than three decades. Recent advances in computer science and technology illustrate the promise of the 3-D US modality as a medical imaging technique that is comparable to other prevalent modalities and that overcomes certain drawbacks of 2-D US. This systematic review covers freehand 3-D US imaging between 1970 and 2017, highlighting the current trends in research fields, the research methods, the main limitations, the leading researchers, standard assessment criteria and clinical applications...
July 14, 2017: Ultrasound in Medicine & Biology
https://www.readbyqxmd.com/read/28715801/fetal-urine-production-rate-in-preterm-premature-rupture-of-membranes-is-associated-with-adverse-neonatal-outcome-a-pilot-study
#18
Tehila Avitan, Lior Drukker, Hadass Pri-Chen, Ron Rabinowitz, Nurit Algur, Michael S Schimmel, Letizia Schreiber, Tali Bdolah-Abram, Arnon Samueloff, Sorina Grisaru-Granovsky
AIM: In this study, we evaluate the associations between fetal urinary production rate (FUPR), measured by ultrasound, and adverse neonatal outcome in women with preterm premature rupture of membranes (PPROM). METHODS: We conducted a prospective pilot cohort of singleton pregnancies complicated by PPROM occurring at gestational week 24 or later managed until spontaneous labor (after 48 h of admission), chorioamnionitis, or induction by protocol at 35 + 0 weeks. FUPR was evaluated by 2D sonography at admission (corrected for gestational age)...
July 18, 2017: Gynecologic and Obstetric Investigation
https://www.readbyqxmd.com/read/28715339/development-of-a-low-cost-medical-ultrasound-scanner-using-a-monostatic-synthetic-aperture
#19
Thomas L A van den Heuvel, David J Graham, Kristopher J Smith, Chris L de Korte, Jeffrey A Neasham
OBJECTIVE: In this paper, we present the design of low-cost medical ultrasound scanners aimed at the detection of maternal mortality risk factors in developing countries. METHOD: Modern ultrasound scanners typically employ a high element count transducer array with multichannel transmit and receive electronics. To minimize hardware costs, we employ a single piezoelectric element, mechanically swept across the target scene, and a highly cost-engineered single channel acquisition circuit...
July 17, 2017: IEEE Transactions on Biomedical Circuits and Systems
https://www.readbyqxmd.com/read/28715299/test-retest-reliability-of-measurements-of-abdominal-and-multifidus-muscles-using-ultrasound-imaging-in-adults-aged-50-79-years
#20
W A Cuellar, L Blizzard, M L Callisaya, J A Hides, G Jones, C Ding, T M Winzenberg
Test-retest reliability of the combined process of ultrasound imaging (USI) and image measurement of thickness of abdominal and upper lumbar multifidus (MF) muscles and MF cross sectional area (CSA) of older adults has not been established. Imaging muscles of older adults can be challenging due to age-related changes in the spine and skeletal muscle so establishing test-retest reliability in this population is important. This study aimed to evaluate test-retest reliability of USI of abdominal and MF muscle thickness and MF CSA for adults aged 50-79 years...
April 2017: Musculoskeletal Science & Practice
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