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Hand carried ultrasound

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https://www.readbyqxmd.com/read/28377943/expert-evaluation-of-a-chicken-tissue-based-model-for-teaching-ultrasound-guided-central-venous-catheter-insertion
#1
Akiva Nachshon, John D Mitchell, Ariel Mueller, Valerie M Banner-Goodspeed, Jakob I McSparron
BACKGROUND: Ultrasound-guided central venous catheterization (CVC) is a commonly performed procedure which carries significant risks for complications. Current models used for simulation-based teaching are expensive and may not replicate tissue feel and ultrasound qualities of human tissues. We aimed to evaluate a tissue model composed of chicken breast and balloons and compare it to a commercially available mannequin. METHODS: Forty attending physicians from four departments with extensive CVC experience were enrolled...
January 2017: Journal of Education in Perioperative Medicine: JEPM
https://www.readbyqxmd.com/read/28373785/chronic-total-coronary-occlusion-recanalization-current-techniques-and-new-devices
#2
REVIEW
Jan-Erik Gülker, Lars Bansemir, Heinrich G Klues, Alexander Bufe
Percutaneous coronary intervention (PCI) of total chronic coronary occlusion (CTO) still remains a major challenge. The prevalence of a CTO has been reported to be up to 30% among patients with a clinical indication for coronary angiography. Progress has been made with further advanced interventional techniques and continuously sophisticated interventional tools. Nevertheless the number of interventions carried out to recanalize a CTO is less than 10% of all procedures. Benefits of a successful CTO recanalization include relief of angina pectoris and ischemia-related dyspnea, substantial improvement in left ventricular function and, avoidance of surgery treatment...
April 2017: Journal of the Saudi Heart Association
https://www.readbyqxmd.com/read/28338472/robust-cardiac-motion-estimation-using-ultrafast-ultrasound-data-a-low-rank-topology-preserving-approach
#3
Angelica I Aviles, Thomas Widlak, Alicia Casals, Maartje Nillesen, Habib Ammari
Cardiac motion estimation is an important diagnostic tool to detect heart diseases and it has been explored with modalities such as MRI and conventional ultrasound (US) sequences. US cardiac motion estimation still presents challenges because of the complex motion patterns and the presence of noise. In this work, we propose a novel approach to estimate the cardiac motion using ultrafast ultrasound data. -- Our solution is based on a variational formulation characterized by the L2-regularized class. The displacement is represented by a lattice of b-splines and we ensure robustness by applying a maximum likelihood type estimator...
March 24, 2017: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/28289617/perforator-flaps-for-reconstruction-of-lower-limb-defects
#4
Mir Yasir, Adil Hafeez Wani, Haroon Rashid Zargar
BACKGROUND: Reconstruction of soft tissue defects in the lower third of the leg remains challenging. Anatomical constraints limit the local options available for complex defects especially lower third of leg. Local flaps based on perforator vessels are raising interest in reconstructive surgery of the limbs. We present our experience with perforator flaps for reconstruction of soft tissue defects in the lower limb. METHODS: The study was carried prospectively and 23 patients with lower limb defects treated with various perforator flaps (both elective as well as emergency) were included in the study...
January 2017: World Journal of Plastic Surgery
https://www.readbyqxmd.com/read/28259843/point-of-care-cardiac-ultrasound-techniques-in-the-physical-examination-better-at-the-bedside
#5
REVIEW
Bruce J Kimura
The development of hand-carried, battery-powered ultrasound devices has created a new practice in ultrasound diagnostic imaging, called 'point-of-care' ultrasound (POCUS). Capitalising on device portability, POCUS is marked by brief and limited ultrasound imaging performed by the physician at the bedside to increase diagnostic accuracy and expediency. The natural evolution of POCUS techniques in general medicine, particularly with pocket-sized devices, may be in the development of a basic ultrasound examination similar to the use of the binaural stethoscope...
March 4, 2017: Heart: Official Journal of the British Cardiac Society
https://www.readbyqxmd.com/read/28110138/contributions-to-ultrasound-monitoring-of-the-process-of-milk-curdling
#6
Antonio Jiménez, Montaña Rufo, Jesús M Paniagua, Abel T Crespo, M Patricia Guerrero, M José Riballo
Ultrasound evaluation permits the state of milk being curdled to be determined quickly and cheaply, thus satisfying the demands faced by today's dairy product producers. This paper describes the non-invasive ultrasonic method of in situ monitoring the changing physical properties of milk during the renneting process. The basic objectives of the study were, on the one hand, to confirm the usefulness of conventional non-destructive ultrasonic testing (time-of-flight and attenuation of the ultrasound waves) in monitoring the process in the case of ewe's milk, and, on the other, to include other ultrasound parameters which have not previously been considered in studies on this topic, in particular, parameters provided by the Fast Fourier Transform technique...
January 10, 2017: Ultrasonics
https://www.readbyqxmd.com/read/28011340/depth-of-field-enhancement-in-filtered-delay-multiply-and-sum-beamformed-images-using-synthetic-aperture-focusing
#7
Giulia Matrone, Alessandro Stuart Savoia, Giosuè Caliano, Giovanni Magenes
The Synthetic Aperture Focusing (SAF) technique makes it possible to achieve a higher and more uniform quality of ultrasound images throughout depth, as if both transmit and receive dynamic focusing were applied. In this work we combine a particular implementation of SAF, called Synthetic Transmit Aperture (STA) technique, in which a single element in turn transmits and all the array elements receive the ultrasound wave, with the Filtered-Delay Multiply and Sum (F-DMAS) non-linear beamforming algorithm that we presented in a previous paper...
March 2017: Ultrasonics
https://www.readbyqxmd.com/read/27878404/inter-rater-agreement-between-trained-emergency-medicine-residents-and-radiologists-in-the-examination-of-gallbladder-and-common-bile-duct-by-ultrasonography
#8
Javad Seyedhosseini, Azade Nasrelari, Narges Mohammadrezaei, Ehsan Karimialavijeh
STUDY OBJECTIVES: Bedside emergency ultrasonograAmerican Society of Emergency Radiologyphy is a rapid diagnostic tool in the emergency department (ED). Nevertheless, the learning curve for ultrasound (US) training in various indications has to date not been clearly defined. The aim of the present study was to assess how much a short specialized training program in hepatobiliary US might impact the skills of novice emergency medicine residents. METHODS: This was a prospective observational study conducted at a university-affiliated ED from May 2014 to January 2015...
November 22, 2016: Emergency Radiology
https://www.readbyqxmd.com/read/27837195/joint-ultrasound-baseline-abnormalities-predict-a-specific-long-term-clinical-outcome-in-systemic-lupus-erythematosus-patients
#9
P Corzo, T C Salman-Monte, V Torrente-Segarra, L Polino, S Mojal, J Carbonell-Abelló
Objective To describe long-term clinical and serological outcome in all systemic lupus erythematosus (SLE) domains in SLE patients with hand arthralgia (HA) and joint ultrasound (JUS) inflammatory abnormalities, and to compare them with asymptomatic SLE patients with normal JUS. Methods SLE patients with HA who presented JUS inflammatory abnormalities ('cases') and SLE patients without HA who did not exhibit JUS abnormalities at baseline ('controls') were included. All SLE clinical and serological domain involvement data were collected...
January 1, 2016: Lupus
https://www.readbyqxmd.com/read/27833780/integrating-ultrasound-teaching-into-preclinical-problem-based-learning
#10
Eli Tumba Tshibwabwa, Jenifer Cannon, James Rice, Michael G Kawooya, Reza Sanii, Robert Mallin
OBJECTIVES: The aim is to provide students in the preclinical with ultrasound image interpretation skills. Research question: Are students in smaller groups with access to a combination of lectures and hands-on patient contact most likely to have better ultrasound image interpretation skills, than students in larger groups with only interactive didactic lectures? METHODOLOGY: First-year students at the preclinical Program of the College of Medicine, participated in two 2-h introductory interactive ultrasound sessions...
2016: Journal of Clinical Imaging Science
https://www.readbyqxmd.com/read/27542338/generation-of-ros-mediated-by-mechanical-waves-ultrasound-and-its-possible-applications
#11
Walter Duco, Viviana Grosso, Daniel Zaccari, Arnaldo T Soltermann
The thermal decomposition of 9,10 diphenylanthracene peroxide (DPAO2) generates DPA and a mix of triplet and singlet molecular oxygen. For DPAO2 the efficiency to produce singlet molecular oxygen is 0.35. On the other hand, it has shown that many thermal reactions can be carried out through the interaction of molecules with ultrasound. Ultrasound irradiation can create hydrodynamic stress (sonomechanical process), inertial cavitation (pyrolitic process) and long range effects mediated by radicals or ROS. Sonochemical reactions can be originated by pyrolytic like process, shock mechanical waves, thermal reactions and radical and ROS mediated reactions...
August 16, 2016: Methods: a Companion to Methods in Enzymology
https://www.readbyqxmd.com/read/27522718/-technologies-for-complex-intelligent-clinical-data-analysis
#12
A A Baranov, L S Namazova-Baranova, I V Smirnov, D A Devyatkin, A O Shelmanov, E A Vishneva, E V Antonova, V I Smirnov
UNLABELLED: The paper presents the system for intelligent analysis of clinical information. Authors describe methods implemented in the system for clinical information retrieval, intelligent diagnostics of chronic diseases, patient's features importance and for detection of hidden dependencies between features. Results of the experimental evaluation of these methods are also presented. BACKGROUND: Healthcare facilities generate a large flow of both structured and unstructured data which contain important information about patients...
2016: Vestnik Rossiĭskoĭ Akademii Meditsinskikh Nauk
https://www.readbyqxmd.com/read/27472686/hand-carried-ultrasound-use-in-clinical-nephrology-case-report
#13
Kathryn D Winters, Stephanie Toth-Manikowski, Carol Martire, Tariq Shafi
BACKGROUND: Correctly assessing and managing volume status are critical elements of daily care for patients managed by nephrologists. However, intravascular volume is difficult to assess by physical examination alone. METHODS: We present vignettes illustrating the potential for using hand-carried ultrasound (HCU) to improve volume assessment in common clinical scenarios faced by the renal consultant in the hospital setting. These include patients with acute kidney injury and patients treated with hemodialysis...
July 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27423643/buried-free-flaps-in-head-and-neck-reconstruction-higher-risk-of-free-flap-failure
#14
M Reiter, U Harréus, U Kisser, C S Betz, Ph Baumeister
Thrombosis of the pedicle is central to free flap failure, and early revision of a compromised flap is the key to successfully salvage a flap. Therefore, the majority of free flaps in reconstructive head and neck surgery are used with the ability to visually examine the flap. Sometimes, due to intra-operative circumstances, it is necessary to use a flap that cannot be monitored externally. These flaps are called buried flaps and have the reputation of being put at risk. The current literature provides only limited data to support or disprove this position...
January 2017: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/27291393/unusual-association-of-non-anaplastic-wilms-tumor-and-cornelia-de-lange-syndrome-case-report
#15
Claudia Santoro, Andrea Apicella, Fiorina Casale, Angela La Manna, Martina Di Martino, Daniela Di Pinto, Cristiana Indolfi, Silverio Perrotta
BACKGROUND: Cornelia de Lange syndrome is the prototype for cohesinopathy disorders, which are characterized by defects in chromosome segregation. Kidney malformations, including nephrogenic rests, are common in Cornelia de Lange syndrome. Only one post-mortem case report has described an association between Wilms tumor and Cornelia de Lange syndrome. Here, we describe the first case of a living child with both diseases. CASE PRESENTATION: Non-anaplastic triphasic nephroblastoma was diagnosed in a patient carrying a not yet reported mutation in NIPBL (c...
2016: BMC Cancer
https://www.readbyqxmd.com/read/27276778/upper-airway-blocks-for-awake-difficult-airway-management
#16
REVIEW
Tatjana Stopar Pintaric
Airway anesthesia is pivotal for successful awake intubation provided either topically or by blocks. Airway blocks are considered technically more difficult to perform and carry a higher risk of complications. However, in experienced hands, they can be useful as they provide excellent intubating conditions. For complete upper airway anesthesia, bilateral glossopharyngeal and superior laryngeal nerve blocks with translaryngeal injection are required. Superior laryngeal nerve block and translaryngeal injection can be performed easily, safely and with a high success rate in patients with normal anatomy...
March 2016: Acta Clinica Croatica
https://www.readbyqxmd.com/read/27039190/management-of-gallbladder-duplication-using-a-single-site-robotic-assisted-approach-a-case-study
#17
Melanie Adams Boyle, Aviva Wallace Kaplin, Leon Kushnir, Per Montero-Pearson
Gallbladder duplication is a rare congenital anomaly. Here, we describe a 29-year-old female who presents with classic symptoms of biliary colic. A duplicated gallbladder was recognized on preoperative ultrasound. This case report reviews a single-site robotic-assisted cholecystectomy with a cystic duct duplication. The patient underwent the surgery without complication. Due to the aberrant anatomy of the cystic triangle, it was decided to mobilize the gallbladder in a dome-down fashion. True gallbladder duplication can be categorized according to cystic duct orientation based on Boyden's classification...
June 2016: Journal of Robotic Surgery
https://www.readbyqxmd.com/read/26993979/three-dimensional-doppler-ultrasound-findings-in-healthy-wrist-and-finger-tendon-sheaths-can-feeding-vessels-lead-to-misinterpretation-in-doppler-detected-tenosynovitis
#18
Mads Ammitzbøll-Danielsen, Iustina Janta, Søren Torp-Pedersen, Esperanza Naredo, Mikkel Østergaard, Lene Terslev
BACKGROUND: The aim was to investigate the presence of feeding vessels in or in close proximity to extensor and flexor tendon sheaths at the wrists level and in finger flexor tendon sheaths in healthy controls, using 3D ultrasound (US), which may cause pitfalls, in order to ensure correct interpretation of Doppler signals when diagnosing tenosynovitis. METHOD: Forty healthy participants (20 women and 20 men age 23-67 years) without prior history of arthritis, tendon diseases or present pain in their hands were included...
March 18, 2016: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/26899731/a-group-of-patients-with-marfan-s-syndrome-who-have-finger-and-toe-contractures-displays-tendons-alterations-upon-an-ultrasound-examination-are-these-features-common-among-classical-marfan-patients
#19
Daniela Melchiorre, Elisa Pratelli, Elena Torricelli, Francesco Sofi, Rosanna Abbate, Marco Matucci-Cerinic, GianFranco Gensini, Guglielmina Pepe
The involvement of the musculoskeletal system with other mild pleiotropic manifestations represents a clinical criterion, called "systemic features," to d iagnose Marfan's syndrome. We aimed to investigate the features of the hands and feet redressable contractures present in a group of Marfan patients. In 13 patients with previously diagnosed Marfan's syndrome, an accurate clinical examination was performed. In particular the characterization of the musculoskeletal system by visual analogic scale to measure muscle pain (VAS) and muscle strength (MRC system) was carried out; the Beighton scale score was used to evaluate the articular hypermobility...
August 2016: Internal and Emergency Medicine
https://www.readbyqxmd.com/read/26812238/reference-charts-for-fetal-cerebellar-vermis-height-a-prospective-cross-sectional-study-of-10605-fetuses
#20
Pietro Cignini, Maurizio Giorlandino, Pierpaolo Brutti, Lucia Mangiafico, Alessia Aloisi, Claudio Giorlandino
OBJECTIVE: To establish reference charts for fetal cerebellar vermis height in an unselected population. METHODS: A prospective cross-sectional study between September 2009 and December 2014 was carried out at ALTAMEDICA Fetal-Maternal Medical Centre, Rome, Italy. Of 25203 fetal biometric measurements, 12167 (48%) measurements of the cerebellar vermis were available. After excluding 1562 (12.8%) measurements, a total of 10605 (87.2%) fetuses were considered and analyzed once only...
2016: PloS One
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