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https://www.readbyqxmd.com/read/28338392/the-effects-of-low-intensity-therapeutic-ultrasound-litus-on-measurable-outcomes-a-critically-appraised-topic
#1
Sarah Daniels, Gabriela Santiago, Jennifer Cuchna, Bonnie Van Lunen
Therapeutic Ultrasound (US) is a popular modality among healthcare professionals and is used to treat a variety of musculoskeletal conditions.(1) Throughout the past 70 years of clinical use,(2) ultrasound has been shown to be an effective way to decrease pain,(2,3) increase tissue temperature,(4) and decrease tissue stiffness of trigger points,(5) amidst other benefits. Treatment parameters with US are typically high-intensity and occur over a short period of time (minutes). The US machine is large and stationary, forcing patients to be non-mobile for the duration of their treatment...
March 24, 2017: Journal of Sport Rehabilitation
https://www.readbyqxmd.com/read/28300858/comparison-of-two-swiss-designed-hyaluronic-acid-gels-six-month-clinical-follow-up
#2
Patrick Micheels, Didier Sarazin, Stéphanie Besse, Badwi Eliasd
The aim of this paper is to compare 2 hyaluronic acid gel fillers from the same Swiss manufacturer and with the same indications: filling of line wrinkles and folds. The products differ by their cross-linking process. With very simple easy-to-reproduce tests, cohesivity and resistance to traction forces were examined. Also, both gels were injected under ultrasound control in the mid reticular dermis of three subjects. The papules were controlled under ultrasound and biopsies at D0 and D15. Results showed significant differences between the 2 gels in all the tests...
February 1, 2017: Journal of Drugs in Dermatology: JDD
https://www.readbyqxmd.com/read/28285477/a-novel-ultrasound-transmission-gel-for-resource-constrained-environments
#3
Jonathan D Monti
Ultrasound represents an ideal diagnostic adjunct for medical personnel operating in austere environments, because of its increasing portability and expanding number of point-of-care applications. However, these machines cannot be used without a transmission medium that allows for propagation of ultrasound waves from transducer to patient. This article describes a novel ultrasound gel alternative that may be better suited for resource-constrained environments than standard ultrasound gel, without compromising image quality...
2017: Journal of Special Operations Medicine: a Peer Reviewed Journal for SOF Medical Professionals
https://www.readbyqxmd.com/read/28280664/ultrasound-and-histologic-examination-after-subcutaneous-injection-of-two-volumizing-hyaluronic-acid-fillers-a-preliminary-study
#4
Patrick Micheels, Stéphanie Besse, Didier Sarazin, Pierre Quinodoz, Badwi Elias, Marva Safa, Joan Vandeputte
BACKGROUND: This study examined the influence of hyaluronic acid (HA) crosslinking technology on the ultrasound and histologic behavior of HA fillers designed for subcutaneous injection. METHODS: One subject received subcutaneous injections of 0.25 ml Cohesive Polydensified Matrix (CPM) and Vycross volumizing HA in tissue scheduled for abdominoplasty by bolus and retrograde fanning techniques. Ultrasound analyses were performed on days 0 and 8 and histologic analyses on days 0 and 21 after injection...
February 2017: Plastic and Reconstructive Surgery. Global Open
https://www.readbyqxmd.com/read/28268844/advanced-inside-out-tracking-approach-for-real-time-combination-of-mri-and-us-images-in-the-radio-frequency-shielded-room-using-combination-markers
#5
Yeshaswini Nagaraj, Christian Benedicks, Philipp Matthies, Michael Friebe
For the real-time fusion of different modalities, a variety of tracking methods are available including the optical, electromagnetic (EM) and image-based tracking. But as a drawback optical tracking suffers from line of sight issues and EM tracking requires the manual referencing for the fusion procedure and is not usable in Magnetic Resonance Imaging (MRI) environment. To avoid these issues, we propose a real-time setup containing a camera capable of inside-Out tracking using combined circular markers attached to Ultrasound (US) probe and a suitable platform for automatic overlay of MRI and US image using markers...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28254290/electrically-conductive-gel-fibers-composite-scaffold-with-graded-properties
#6
Sajedeh Khorshidi, Akbar Karkhaneh
Gradient biomaterials have emerged as fascinating platforms to satisfy the need for imitation of ubiquitous gradients in biology, especially those found at tissue interfaces. In the current study, a gradient fiber-hydrogel scaffold was fabricated to imitate the extracellular matrix of soft-to-hard tissue interfaces. For the fiber proportion, a gradient electrospinning was developed where controlled mixing of solutions with dissimilar concentration of a conductive polymer in injection vessel imparted a composition gradient to electrospinning jet, and thus electrospun fibers...
May 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28236117/3d-ultrasound-registration-based-visual-servoing-for-neurosurgical-navigation
#7
Oliver Zettinig, Benjamin Frisch, Salvatore Virga, Marco Esposito, Anna Rienmüller, Bernhard Meyer, Christoph Hennersperger, Yu-Mi Ryang, Nassir Navab
PURPOSE: We present a fully image-based visual servoing framework for neurosurgical navigation and needle guidance. The proposed servo-control scheme allows for compensation of target anatomy movements, maintaining high navigational accuracy over time, and automatic needle guide alignment for accurate manual insertions. METHOD: Our system comprises a motorized 3D ultrasound (US) transducer mounted on a robotic arm and equipped with a needle guide. It continuously registers US sweeps in real time with a pre-interventional plan based on CT or MR images and annotations...
February 24, 2017: International Journal of Computer Assisted Radiology and Surgery
https://www.readbyqxmd.com/read/28227042/advanced-inside-out-tracking-approach-for-real-time-combination-of-mri-and-us-images-in-the-radio-frequency-shielded-room-using-combination-markers
#8
Yeshaswini Nagaraj, Christian Benedicks, Philipp Matthies, Michael Friebe, Yeshaswini Nagaraj, Christian Benedicks, Philipp Matthies, Michael Friebe
For the real-time fusion of different modalities, a variety of tracking methods are available including the optical, electromagnetic (EM) and image-based tracking. But as a drawback optical tracking suffers from line of sight issues and EM tracking requires the manual referencing for the fusion procedure and is not usable in Magnetic Resonance Imaging (MRI) environment. To avoid these issues, we propose a real-time setup containing a camera capable of inside-Out tracking using combined circular markers attached to Ultrasound (US) probe and a suitable platform for automatic overlay of MRI and US image using markers...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28210379/two-crosslinking-technologies-for-superficial-reticular-dermis-injection-a-comparative-ultrasound-and-histologic-study
#9
Patrick Micheels, Stéphanie Besse, Didier Sarazin
Background: Few hyaluronic acid fillers have been developed for superficial injection. Objective: To compare the diffusion and integration properties of cohesive polydensified matrix and Vycross® technology hyaluronic acid fillers with lidocaine following injection into the superficial reticular dermis. Methods and materials: Two subjects received two injections each of cohesive polydensified matrix and Vycross® hyaluronic acid (0.2mL/site) in the superficial reticular dermis of the buttock under ultrasound control...
January 2017: Journal of Clinical and Aesthetic Dermatology
https://www.readbyqxmd.com/read/28207033/clinical-evaluation-of-shaped-gel-breast-implant-rotation-using-high-resolution-ultrasound
#10
David A Sieber, Ran Y Stark, Serena Chase, Mark Schafer, William P Adams
No abstract text is available yet for this article.
March 1, 2017: Aesthetic Surgery Journal
https://www.readbyqxmd.com/read/28199547/commentary-on-clinical-evaluation-of-shaped-gel-breast-implant-rotation-using-high-resolution-ultrasound
#11
Bradley P Bengtson
No abstract text is available yet for this article.
February 12, 2017: Aesthetic Surgery Journal
https://www.readbyqxmd.com/read/28167319/uniform-tissue-lesion-formation-induced-by-high-intensity-focused-ultrasound-along-a-spiral-pathway
#12
Kui Qian, Chenghai Li, Zhengyang Ni, Juan Tu, Xiasheng Guo, Dong Zhang
Both theoretical and experimental studies were performed here to investigate the lesion formation induced by high-intensity focused ultrasound (HIFU) operating in continuous scanning mode along a spiral pathway. The Khokhlov-Zabolotskaya-Kuznetsov equation and bio-heat equation were combined in the current model to predict HIFU-induced temperature distribution and lesion formation. The shape of lesion and treatment efficiency were assessed for a given scanning speed at two different grid spacing (3mm and 4mm) in the gel phantom studies and further researched in ex vivo studies...
January 24, 2017: Ultrasonics
https://www.readbyqxmd.com/read/28166925/-is-universal-screening-for-cervical-length-among-singleton-pregnancies-with-no-history-of-preterm-birth-justified
#13
P Rozenberg
The ultrasonographic measurement of cervical length with a cutoff of 15mm is currently the best method to identify a group of asymptomatic women in the general population at risk of spontaneous preterm birth, especially among asymptomatic patients with a singleton pregnancy with no history of preterm birth. Cerclage and 17 alpha-hydroxyprogesterone caproate (17OHP-C) are ineffective to reduce the risk of preterm birth among asymptomatic patients with a short cervix in midtrimester. However, vaginal progesterone (200-mg capsules of micronized progesterone or gel containing 90mg progesterone) has been demonstrated effective in 2 large randomized trials to reduce the risk of preterm birth and possibly the composite morbidity and perinatal mortality associated among asymptomatic women with a short cervix in the general population screened by ultrasound of the cervix in midtrimester...
December 2016: Journal de Gynécologie, Obstétrique et Biologie de la Reproduction
https://www.readbyqxmd.com/read/28159682/development-of-an-injectable-pseudo-bone-thermo-gel-for-application-in-small-bone-fractures
#14
Pariksha J Kondiah, Yahya E Choonara, Pierre P D Kondiah, Pradeep Kumar, Thashree Marimuthu, Lisa C du Toit, Viness Pillay
A pseudo-bone thermo-gel was synthesized and evaluated for its physicochemical, mechanical and rheological properties, with its application to treat small bone fractures. The pseudo-bone thermo-gel was proven to have thermo-responsive properties, behaving as a solution in temperatures below 25°C, and forming a gelling technology when maintained at physiological conditions. Poly propylene fumerate (PPF), Pluronic F127 and PEG-PCL-PEG were strategically blended, obtaining a thermo-responsive delivery system, to mimic the mechanical properties of bone with sufficient matrix hardness and resilience...
January 31, 2017: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/28152262/structural-analysis-of-fluorine-containing-bioactive-glass-nanoparticles-synthesized-by-sol-gel-route-assisted-by-ultrasound-energy
#15
Carolina E C Lins, Agda A R Oliveira, Ismael Gonzalez, Waldemar A A Macedo, Marivalda M Pereira
In the last decades, studies about the specific effects of bioactive glass on remineralization of dentin were the focus of attention, due to their excellent regenerative properties in mineralized tissues. The incorporation of Fluorine in bioactive glass nanoparticles may result in the formation of fluorapatite (FAP), which is chemically more stable than hydroxyapatite or carbonated hydroxyapatite, and therefore is of interest for dental applications. The aim of this study was to synthesize and characterize a new system of Fluorine-containing bioactive glass nanoparticles (BGNPF)...
February 2, 2017: Journal of Biomedical Materials Research. Part B, Applied Biomaterials
https://www.readbyqxmd.com/read/28135884/intranasal-administration-of-dopamine-attenuates-unconditioned-fear-in-that-it-reduces-restraint-induced-ultrasound-vocalizations-and-escape-from-bright-light
#16
Teddy Talbot, Claudia Mattern, Maria Angelica de Souza Silva, Marcus Lira Brandão
BACKGROUND: Although substantial evidence suggests that dopamine (DA) enhances conditioned fear responses, few studies have examined the role of DA in unconditioned fear states. Whereas DA does not cross the blood-brain barrier, intranasally-applied dopamine reaches the brain directly via the nose-brain pathways in rodents, providing an alternative means of targeting DA receptors. Intranasal dopamine (IN-DA) has been demonstrated to bind to DA transporters and to increase extracellular DA in the striatum as well as having memory-promoting effects in rats...
January 1, 2017: Journal of Psychopharmacology
https://www.readbyqxmd.com/read/28127426/mri-guided-coupling-for-a-focused-ultrasound-system-using-a-top-to-bottom-propagation
#17
Marinos Yiannakou, George Menikou, Christos Yiallouras, Christakis Damianou
BACKGROUND: A novel magnetic resonance imaging (MRI)-conditional coupling system was developed that accommodates a focused ultrasound (FUS) transducer. With this coupling system, the transducer can access targets from top to bottom. The intended clinical application is treatment of fibroids using FUS with the patient placed in supine position. METHODS: The coupling system was manufactured using a rapid prototyping device using acrylonitrile butadiene styrene (ABS) plastic...
2017: Journal of Therapeutic Ultrasound
https://www.readbyqxmd.com/read/28118951/brachyview-combining-ldr-seed-positions-with-transrectal-ultrasound-imaging-in-a-prostate-gel-phantom
#18
S Alnaghy, D L Cutajar, J A Bucci, K Enari, M Safavi-Naeini, M Favoino, M Tartaglia, F Carriero, J Jakubek, S Pospisil, M Lerch, A B Rosenfeld, M Petasecca
PURPOSE: BrachyView is a novel in-body imaging system which aims to provide LDR brachytherapy seeds position reconstruction within the prostate in real-time. The first prototype is presented in this study: the probe consists of a gamma camera featuring three single cone pinhole collimators embedded in a tungsten tube, above three, high resolution pixelated detectors (Timepix). METHODS: The prostate was imaged with a TRUS system using a sagittal crystal with a 2...
January 21, 2017: Physica Medica: PM
https://www.readbyqxmd.com/read/28116020/adapting-gel-wax-into-an-ultrasound-guided-pericardiocentesis-model-at-low-cost
#19
Robert Daly, Jason H Planas, Mary Ann Edens
Cardiac tamponade is a life-threatening emergency for which pericardiocentesis may be required. Real-time bedside ultrasound has obviated the need for routine blind procedures in cardiac arrest, and the number of pericardiocenteses being performed has declined. Despite this fact, pericardiocentesis remains an essential skill in emergency medicine. While commercially available training models exist, cost, durability, and lack of anatomical landmarks limit their usefulness. We sought to create a pericardiocentesis model that is realistic, simple to build, reusable, and cost efficient...
January 2017: Western Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28108045/a-comparison-of-3-on-line-nomograms-with-the-detection-of-primary-circulating-prostate-cells-to-predict-prostate-cancer-at-initial-biopsy
#20
N P Murray, C Fuentealba, E Reyes, O Jacob
INTRODUCTION: The use of nomograms which include the PSA may improve the predictive power of obtaining a prostate biopsy (PB) positive for cancer. We compare the use of three on-line nomagrams with the detection of primary malignant circulating prostate cells (CPCs) to predict the results of an initial PB in men with suspicion of prostate cancer. METHODS AND PATIENTS: Consecutive men with suspicion of prostate cancer underwent a 12 core TRUS prostate biopsy; age, total serum PSA, percent free PSA, family history, ethnic origin and prostate ultrasound results were used for risk assessment using the online nomograms...
January 17, 2017: Actas Urologicas Españolas
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