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https://www.readbyqxmd.com/read/28098413/dermatomal-spread-following-posterior-transversus-abdominis-plane-block-in-pediatric-patients-our-initial-experience
#1
Maria A Hernandez, Tricia Vecchione, Karen Boretsky
INTRODUCTION: Several techniques for the transversus abdominis plane (TAP) block have been described. The extent of sensory changes using an ultrasound-guided posterior TAP block (pTAP) remains unclear in pediatric patients. The primary aim of this study was to report the extent of sensory changes achieved with pTAP; specifically the highest thoracic dermatome anesthetized. Secondary outcomes were pain scores (PS), opioid consumption, and complications. METHODS: We retrospectively reviewed the medical records of patients less than 21 years of age undergoing abdominal surgery with a unilateral or bilateral pTAP(s) for postoperative analgesia...
January 18, 2017: Paediatric Anaesthesia
https://www.readbyqxmd.com/read/28098106/the-role-of-dynamic-renal-scintigraphy-on-clinical-decision-making-in-hydronephrotic-children
#2
Seçil Arslansoyu Çamlar, Nazlı Deveci, Alper Soylu, Mehmet Atilla Türkmen, Derya Özmen, Gamze Çapakaya, Salih Kavukçu
Hydronephrosis may be related to an obstructive cause, ureteropelvic/uretero-vesical junction obstruction or nonobstructive [vesicoureteral reflux (VUR)]. When an obstructive pathology is considered, dynamic renal scintigraphy may help to predict whether it is a true obstruction or not. In this study, we aimed to determine the contribution of dynamic renal scintigraphy with [99] mTc-MAG-3 to the clinical decision-making for surgery in hydronephrotic children. Files of the patients evaluated by MAG-3 scintigraphy for antenatal (AH)/postnatal (PH) hydronephrosis between 1992 and 2014 were reviewed...
January 2017: Saudi Journal of Kidney Diseases and Transplantation
https://www.readbyqxmd.com/read/28097523/intravascular-ultrasound-characterization-of-a-tissue-engineered-vascular-graft-in-an-ovine-model
#3
Victoria K Pepper, Elizabeth S Clark, Cameron A Best, Ekene A Onwuka, Tadahisa Sugiura, Eric D Heuer, Lilamarie E Moko, Shinka Miyamoto, Hideki Miyachi, Darren P Berman, Sharon L Cheatham, Joanne L Chisolm, Toshiharu Shinoka, Christopher K Breuer, John P Cheatham
Patients who undergo implantation of a tissue-engineered vascular graft (TEVG) for congenital cardiac anomalies are monitored with echocardiography, followed by magnetic resonance imaging or angiography when indicated. While these methods provide data regarding the lumen, minimal information regarding neotissue formation is obtained. Intravascular ultrasound (IVUS) has previously been used in a variety of conditions to evaluate the vessel wall. The purpose of this study was to evaluate the utility of IVUS for evaluation of TEVGs in our ovine model...
January 17, 2017: Journal of Cardiovascular Translational Research
https://www.readbyqxmd.com/read/28097450/contemporary-thoughts-on-the-management-of-spigelian-hernia
#4
V Webber, C Low, R J E Skipworth, S Kumar, A C de Beaux, B Tulloh
BACKGROUND: Spigelian hernias are said to be a rare condition of the elderly population, usually arising below the arcuate line. Local experience has led us to challenge these commonly held beliefs. METHODS: Operations for Spigelian hernia from 2006-2016 were identified from the Edinburgh Lothian Surgical Audit computerised database and case notes were reviewed. RESULTS: One hundred and one patients underwent surgery for 107 Spigelian hernias in the 10-year period...
January 17, 2017: Hernia: the Journal of Hernias and Abdominal Wall Surgery
https://www.readbyqxmd.com/read/28097007/safety-assessment-in-rats-and-dogs-of-acoustic-cluster-therapy-a-novel-concept-for-ultrasound-mediated-targeted-drug-delivery
#5
Oddvar Myhre, Marie Bjørgan, Derek Grant, Svein-Olaf Hustvedt, Per C Sontum, Hubert Dirven
Acoustic Cluster Therapy (ACT) represents a novel concept for targeted drug delivery. Ultrasound is applied to activate intravenously administered free-flowing clusters of microbubbles and microdroplets within the target pathology, depositing 20-30 μm large bubbles in the microvasculature for 5-10 min. Further application of ultrasound induces biomechanical effects which increase vascular permeability and enhance localized extravasation of coadministered drugs. Herein we report investigations done to assess the preclinical safety of ACT, using doses up to 1 mL/kg (3 μL perfluoromethyl-cyclopentane/kg)...
December 2016: Pharmacology Research & Perspectives
https://www.readbyqxmd.com/read/28096917/assessment-of-histopathological-features-of-needle-biopsy-in-recurrent-prostate-cancer-following-salvage-high-intensity-focused-ultrasound
#6
Michele Billia, Khurram M Siddiqui, Susanne Chan, Fan Li, Ali Al-Zahrani, Jose A Gomez, Joseph L Chin
INTRODUCTION: Local recurrence of prostate cancer (PCa) following radiotherapy may be treated with curative intent using salvage high-intensity focused ultrasound (s-HIFU). The interpretation of needle core biopsy specimens following s-HIFU is a daunting task, even for experienced pathologists. We describe various histopathological features encountered in biopsy specimens following whole-gland s-HIFU in one of the largest descriptive studies to date. METHODS: Fifty-five patients with biopsy-proven localized radio-recurrent PCa underwent s-HIFU and transrectal ultrasound (TRUS)-guided prostatic needle biopsies at 180 days post-treatment...
November 2016: Canadian Urological Association Journal, Journal de L'Association des Urologues du Canada
https://www.readbyqxmd.com/read/28096828/intramural-esophageal-tumors
#7
Mariusz P Łochowski, Katarzyna Kozak, Marek Rębowski, Józef Kozak
INTRODUCTION: Intramural esophageal tumors (IET) are located between unchanged mucous membrane and muscularis mucosae. They can be both benign and malignant. AIM: To evaluate diagnostic and therapeutic difficulties of IET. MATERIAL AND METHODS: During the years 2010-2015, 11 patients with IET were treated in our clinic. Diagnostics included gastroscopy, computed tomography of the chest, endoscopic ultrasound (EUS) guided fine needle biopsy, and positron emission tomography (PET) of the esophagus in cases with no histopathological confirmation...
December 2016: Kardiochirurgia i Torakochirurgia Polska, Polish Journal of Cardio-Thoracic Surgery
https://www.readbyqxmd.com/read/28096725/added-value-of-contrast-enhanced-ultrasound-on-biopsies-of-focal-hepatic-lesions-invisible-on-fusion-imaging-guidance
#8
Tae Wook Kang, Min Woo Lee, Kyoung Doo Song, Mimi Kim, Seung Soo Kim, Seong Hyun Kim, Sang Yun Ha
OBJECTIVE: To assess whether contrast-enhanced ultrasonography (CEUS) with Sonazoid can improve the lesion conspicuity and feasibility of percutaneous biopsies for focal hepatic lesions invisible on fusion imaging of real-time ultrasonography (US) with computed tomography/magnetic resonance images, and evaluate its impact on clinical decision making. MATERIALS AND METHODS: The Institutional Review Board approved this retrospective study. Between June 2013 and January 2015, 711 US-guided percutaneous biopsies were performed for focal hepatic lesions...
January 2017: Korean Journal of Radiology: Official Journal of the Korean Radiological Society
https://www.readbyqxmd.com/read/28095866/improvement-of-displacement-estimation-of-breast-tissue-in-ultrasound-elastography-using-the-monogenic-signal
#9
Taher Slimi, Ines Marzouk Moussa, Tarek Kraiem, Halima Mahjoubi
BACKGROUND: In breast ultrasound elastography, tissues displacements estimation is obtained through a technique that follows the evolution of tissues under stress. However, during the acquisition of B-mode images, tissue displacements are often contaminated with multiplicative noise caused by changes in the speckle pattern in the tissue. Thus, the application of monogenic signal technique on the B-mode image in order to estimate displacement tissue, result in a presence of amplified noise in the deformation tissue image, which severely obscures the useful information...
January 17, 2017: Biomedical Engineering Online
https://www.readbyqxmd.com/read/28095578/a-clinical-evaluation-of-a-next-generation-non-invasive-selective-radiofrequency-hands-free-body-shaping-device
#10
Nicole Hayre, Melanie Palm, Peter Jenkin
OBJECTIVE: The aim of this study was to compare clinical outcomes of a noninvasive selective radiofrequency (RF) eld device (BTL Vanquish METM, BTL Industries Inc., Boston MA) with its predecessor (VanquishTM, BTL Industries Inc., Boston MA). The BTL Vanquish METM system has been thoroughly redesigned for more efficient, predictable and homogenous energy delivery to the targeted tissue. MATERIALS AND METHODS: In this multi-center study, 36 subjects with BMIs under 30 were randomly assigned to be treated in Group A (BTL Vanquish METM) or Group B (VanquishTM) in order to obtain a side by side comparison of the devices' ef cacies...
December 1, 2016: Journal of Drugs in Dermatology: JDD
https://www.readbyqxmd.com/read/28095547/prospective-internally-controlled-blind-reviewed-clinical-evaluation-of-cryolipolysis-combined-with-multipolar-radiofrequency-andvaripulsetechnology-for-enhanced-subject-results-in-circumferential-fat-reduction-and-skin-laxity-of-the-flanks
#11
Julius Few, Michael Gold, Neil Sadick
BACKGROUND: Increasing demand for non-invasive skin tightening and body contouring procedures has led to several technological in- novations in energy-based devices such as ultrasound, radiofrequency and cryolipolysis. An emerging trend in the eld is to evaluate whether combination therapies for skin laxity/body contouring using energy-based devices can deliver superior clinical results and patient satisfaction. As such, the objective of this prospective, internal-controlled, blind clinical study was to assess the safety and efficacy of cryolipolysis followed by multipolar radiofrequency with pulsed electromagnetic elds (PEMF) and adjustable pulsed suction for the treatment of skin laxity in the flanks...
November 1, 2016: Journal of Drugs in Dermatology: JDD
https://www.readbyqxmd.com/read/28094959/noninvasive-targeted-transcranial-neuromodulation-via-focused-ultrasound-gated-drug-release-from-nanoemulsions
#12
Raag D Airan, Randall A Meyer, Nicholas P K Ellens, Kelly Rhodes, Keyvan Farahani, Martin G Pomper, Shilpa D Kadam, Jordan J Green
Targeted, noninvasive neuromodulation of the brain of an otherwise awake subject could revolutionize both basic and clinical neuroscience. Towards this goal, we have developed nanoparticles that allow noninvasive uncaging of a neuromodulatory drug - in this case the small molecule anesthetic propofol - upon the application of focused ultrasound. These nanoparticles are composed of biodegradable and biocompatible constituents and are activated using sonication parameters that are readily achievable by current clinical transcranial focused ultrasound systems...
January 17, 2017: Nano Letters
https://www.readbyqxmd.com/read/28094757/which-joints-and-why-do-rheumatologists-scan-in-rheumatoid-arthritis-by-ultrasonography-a-real-life-experience
#13
Sibel Zehra Aydin, Salih Pay, Nevsun Inanc, Sevil Kamali, Omer Karadag, Paul Emery, Maria-Antonietta D'Agostino
OBJECTIVES: Ultrasonography (US) has been demonstrated to improve assessment of synovitis and disease activity in rheumatoid arthritis (RA). However, the utility and feasibility of US in RA in clinical practice in real life is not known. We aimed to investigate: i) the indications for performing US in RA in daily practice; and ii) whether the number of scanned joints varies according to the purpose. METHODS: Consecutive patients who had a US scan either for diagnosis or follow-up for RA from 5 centres were recruited...
January 15, 2017: Clinical and Experimental Rheumatology
https://www.readbyqxmd.com/read/28094422/predicting-the-need-for-trochleoplasty-in-canine-patellar-luxation-using-pre-and-intra-operative-assessments-of-trochlear-depth
#14
Julie Skovgaard Orthmand Hansen, Ken Lindeblad, Lene Buelund, James Miles
OBJECTIVES: To evaluate the repeatability and reproducibility of ultrasonographic femoral trochlear depth measurements and to compare ultrasonographic and intra-operative evaluations of femoral trochlear depth for predictive value in selecting trochleoplasty. METHODS: Repeatability and reproducibility of an ultrasonographic protocol were tested in a preclinical cadaveric study. Clinical patients undergoing corrective surgery for patellar luxation were evaluated preoperatively with ultrasound and intra-operatively using a depth gauge...
January 17, 2017: Veterinary and Comparative Orthopaedics and Traumatology: V.C.O.T
https://www.readbyqxmd.com/read/28093417/cardiovascular-risk-of-patients-with-gout-seen-at-rheumatology-clinics-following-a-structured-assessment
#15
Mariano Andrés, José Antonio Bernal, Francisca Sivera, Neus Quilis, Loreto Carmona, Paloma Vela, Eliseo Pascual
OBJECTIVES: Gout-associated cardiovascular (CV) risk relates to comorbidities and crystal-led inflammation. The aim was to estimate the CV risk by prediction tools in new patients with gout and to assess whether ultrasonographic carotid changes are present in patients without high CV risk. METHODS: Cross-sectional study. Consecutive new patients with crystal-proven gout underwent a structured CV consultation, including CV events, risk factors and two risk prediction tools-the Systematic COronary Evaluation (SCORE) and the Framingham Heart Study (FHS)...
January 16, 2017: Annals of the Rheumatic Diseases
https://www.readbyqxmd.com/read/28093301/protocol-driven-management-of-suspected-common-duct-stones
#16
Anthony Manning, Richard Frazee, Stephen Abernathy, Claire Isbell, Travis Isbell, Justin Regner, Yolanda Munoz Maldanado, Randall Smith
INTRO: Common duct stones can be diagnosed by magnetic resonance cholangiopancreatography (MRCP), endoscopic ultrasound/endoscopic retrograde cholangiopancreatography (EUS/ERCP), and intra-operative cholangiogram (IOC). In 2015, our group adopted a standard approach of preoperative EUS/ERCP followed by laparoscopic cholecystectomy for patients with an admission bilirubin over 4.0 (mg/dL). For bilirubin less than 4.0, laparoscopic cholecystectomy with IOC was the initial procedure. Post-operative EUS/ERCP with endoscopic sphincterotomy was pursued for positive IOC...
January 13, 2017: Journal of the American College of Surgeons
https://www.readbyqxmd.com/read/28092530/feasibility-of-multi-plane-transmit-beamforming-for-real-time-volumetric-cardiac-imaging-a-simulation-study
#17
Yinran Chen, Ling Tong, Alejandra Ortega, Jianwen Luo, Jan D'hooge
Today's three-dimensional (3-D) cardiac ultrasound imaging systems suffer from relatively low spatial and temporal resolution, limiting their applicability in daily clinical practice. To address this problem, 3-D diverging wave imaging with spatial coherent compounding (DWC) as well as 3-D multi-line-transmit (MLT) imaging have recently been proposed. Currently, the former improves the temporal resolution significantly at the expense of image quality and the risk of introducing motion artifacts whereas the latter only provides a moderate gain in volume rate but mostly preserves quality...
January 10, 2017: IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
https://www.readbyqxmd.com/read/28092318/opening-injection-pressure-is-higher-in-intraneural-compared-with-perineural-injections-during-simulated-nerve-blocks-of-the-lower-limb-in-fresh-human-cadavers
#18
Kris Vermeylen, Marlies Hermans, Filiep Soetens, Evie Vereecke, Thorsten Steinfeldt, Gerbrand Groen, Admir Hadzic, Marc Van de Velde
BACKGROUND AND OBJECTIVES: Needle-induced nerve trauma and intraneural injection can lead to neurologic injury during peripheral nerve blocks. In this study, we assessed the utility of opening injection pressure (OIP), time to OIP, and rate of rise to OIP in detecting needle-nerve contact and intraneural injection. METHODS: Five common ultrasound-guided blocks of the femoral, saphenous, subgluteal sciatic, tibial, and common peroneal nerves were simulated in 10 fresh cadavers...
January 13, 2017: Regional Anesthesia and Pain Medicine
https://www.readbyqxmd.com/read/28092147/should-serum-calcitonin-be-routinely-measured-in-patients-presenting-with-thyroid-nodule
#19
William P Tormey, Brendan Byrne, Arnold D Hill, Mark Sherlock, Christopher J Thompson
BACKGROUND: The European Thyroid Association recommends serum calcitonin measurement in thyroid nodule cases. In contrast, the American Thyroid Association is ambivalent. In this institution, thyroid nodules cases are subject to a multidisciplinary evaluation of the clinical history and examination, ultrasound and scintigraphy, CT scan and sometimes MRI scan, biochemistry and histopathology of biopsies. We report on the current use of plasma calcitonin measurements in the context of changing practice which has not included screening of all thyroid nodules...
January 13, 2017: Minerva Endocrinologica
https://www.readbyqxmd.com/read/28092120/pediatric-peritonsillar-abscess-outcomes-and-cost-savings-from-using-transcervical-ultrasound
#20
Zhen Huang, William Vintzileos, Heather Gordish-Dressman, Anjum Bandarkar, Brian K Reilly
OBJECTIVES: 1) To analyze clinical outcomes of children stratified by ultrasound into three diagnoses: acute tonsillitis, peritonsillar phlegmon, and abscess; and 2) To compare clinical outcomes and financial impact between children who underwent ultrasound protocol to those who did not. STUDY DESIGN: Retrospective analysis between two cohorts: ultrasound protocol group and control group. METHODS: Children with peritonsillar abscess (PTA) diagnosed in the emergency department (ED) were enrolled during a 2-year period for transcervical ultrasound evaluation of bilateral tonsillar fossae...
January 16, 2017: Laryngoscope
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