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FAST protocol ultrasound

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https://www.readbyqxmd.com/read/29988649/a-convenient-reliable-and-fast-acoustic-pressure-field-measurement-method-for-magnetic-resonance-guided-high-intensity-focused-ultrasound-systems-with-phased-array-transducers
#1
Satya V V N Kothapalli, Ari Partanen, Lifei Zhu, Michael B Altman, H Michael Gach, Dennis E Hallahan, Hong Chen
Background: With the expanding applications of magnetic resonance-guided high-intensity focused ultrasound (MR-HIFU), there is an urgent need for a convenient, reliable, and fast acoustic pressure field measurement method to aid treatment protocol design, ensure consistent and safe operation of the transducer, and facilitate regulatory approval of new techniques. Herein, we report a method for acoustic pressure field characterization of MR-HIFU systems with multi-element phased array transducers...
2018: Journal of Therapeutic Ultrasound
https://www.readbyqxmd.com/read/29943757/-analysis-of-the-use-of-point-of-care-ultrasonography-in-emergency-departments-in-public-hospitals-in-catalonia-ecurcat-study
#2
J Jacob, J Zorrilla, E Gené, G Alonso, P Rimbau, F Casarramona, C Netto, P Sánchez, R Hernández, X Escalada, O Miró
BACKGROUND: The aim of this study was to determine the degree of implantation, the characteristics and the formation of point-of-care ultrasonography, performed by emergency physicians in the public hospital emergency department (ED) of Catalonia. METHODS: Descriptive study based on a survey conducted with those responsible for the public ED in Catalonia and structured in three blocks: difficulty of implementing the technique and perceived reasons for this difficulty, equipment available in the emergency room and its use, and training of emergency physicians...
June 25, 2018: Anales del Sistema Sanitario de Navarra
https://www.readbyqxmd.com/read/29914554/prehospital-point-of-care-emergency-ultrasound-a-cohort-study
#3
Maximilian Scharonow, Christian Weilbach
BACKGROUND: In the prehospital situation, the diagnostic armamentarium available to the rescue physician is limited. Emergency ultrasound has proven to be a useful diagnostic tool, providing crucial information for the management of critically ill and injured patients. The proportion of performed ultrasound scans in all patients attended to by the rescue service team, the quality of the findings and the ultrasound-related changes in management approach and patient transport were evaluated...
June 18, 2018: Scandinavian Journal of Trauma, Resuscitation and Emergency Medicine
https://www.readbyqxmd.com/read/29873123/folic-acid-supplementation-does-not-attenuate-thermoregulatory-or-cardiovascular-strain-of-older-adults-exposed-to-extreme-heat-and-humidity
#4
Daniel Gagnon, Steven A Romero, Matthew N Cramer, Ken Kouda, Paula Y S Poh, Hai Ngo, Ollie Jay, Craig G Crandall
NEW FINDINGS: What is the central question of this study? Does folic acid supplementation alleviate thermoregulatory and cardiovascular strain of older adults during exposure to extreme heat and humidity? What is the main finding and its importance? Folic acid supplementation for 6 weeks did not affect whole-limb blood flow/vasodilatation, core and skin temperatures, heart rate, blood pressure and cardiac output. Thus, 6 weeks of folic acid supplementation does not alleviate thermoregulatory or cardiovascular strain of healthy older adults exposed to extreme heat and humidity...
June 5, 2018: Experimental Physiology
https://www.readbyqxmd.com/read/29708590/standardised-assessment-of-competence-in-focused-assessment-with-sonography-for-trauma
#5
L Russell, M L Østergaard, M B Nielsen, L Konge, K R Nielsen
PURPOSE: The aim of this study was to develop and gather validity evidence for a standardised test of competence in Focused Assessment with Sonography for Trauma (FAST) and to define the appropriate cut-off point in simulation-based learning of the FAST protocol. METHODS: A 20-item simulation-based test for assessing competence in FAST was created. The test was administered to thirteen novices and twelve radiologists experienced in abdominal ultrasound diagnostics...
April 30, 2018: Acta Anaesthesiologica Scandinavica
https://www.readbyqxmd.com/read/29662732/institutional-review-of-hemorrhagic-pelvic-emergencies-effectively-managed-with-percutaneous-arterial-embolization
#6
Muhammad Azeemuddin, Raza Sayani, Nauman Turab, Syed M Mustahsan, Mohammad Hasan, Dawar B Khan, Fatima Mubarak
OBJECTIVE: Our aim was to review the results of pelvic arterial embolization (PAE) performed in the interventional radiology suite. METHOD: The data of all patients in whom pelvic angioembolization was performed was collected from July 2011 to June 2017. Procedures were performed by an experienced interventional radiologist. The clinical and laboratory data, as well as the outcome data, were obtained from the medical records of our hospital. The following parameters were collected for each patient, including the age, gender, presenting symptoms, site of bleeding, catheters used for embolization, material used for embolization, previous computed tomography (CT) scan and/or focused assessment with sonography for trauma (FAST) ultrasound, average hemoglobin before the procedure, and patient clinical status on discharge...
February 15, 2018: Curēus
https://www.readbyqxmd.com/read/29624530/diagnostic-accuracy-of-point-of-care-gastric-ultrasound
#7
Richelle Kruisselbrink, Angineh Gharapetian, Luis E Chaparro, Noam Ami, Dustin Richler, Vincent W S Chan, Anahi Perlas
BACKGROUND: Pulmonary aspiration of gastric contents is associated with significant perioperative morbidity and mortality. Previous studies have investigated the validity, reliability, and possible clinical impact of gastric ultrasound for the assessment of gastric content at the bedside. In the present study, we examined the accuracy (evaluated as sensitivity, specificity, and likelihood ratios) of point-of-care gastric ultrasound to detect a "full stomach" in a simulated scenario of clinical equipoise...
April 5, 2018: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/29581925/isolated-renal-laceration-on-point-of-care-ultrasound
#8
Madeline M Grade, Cori Poffenberger, Viveta Lobo
We report a renal laceration identified on a point-of-care ultrasound (POCUS) performed in the emergency department on a 58-year-old female presenting after blunt trauma. Emergency workup demonstrated a right flank abrasion with tenderness to palpation, hematuria, and decreasing hematocrit. A Focused Assessment with Sonography in Trauma (FAST) exam, performed as part of the intake trauma protocol, identified positive intraperitoneal fluid in the right upper quadrant. A computed tomography (CT) scan established a diagnosis of isolated right renal hematoma arising from a Grade IV laceration, with no collecting duct involvement...
January 25, 2018: Curēus
https://www.readbyqxmd.com/read/29505403/ultrasound-imaging-from-sparse-rf-samples-using-system-point-spread-functions
#9
Colas Schretter, Shaun Bundervoet, David Blinder, Ann Dooms, Jan D'hooge, Peter Schelkens
Upcoming phased-array 2-D sensors will soon enable fast high-definition 3-D ultrasound imaging. Currently, the communication of raw radio-frequency (RF) channel data from the probe to the computer for digital beamforming is a bottleneck. For reducing the amount of transferred data samples, this paper investigates the design of an adapted sparse sampling technique for image reconstruction inspired by the compressed sensing framework. Echo responses from isolated points are generated using a physically based simulation of ultrasound wave propagation through tissues...
March 2018: IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
https://www.readbyqxmd.com/read/29392718/simulation-based-point-of-care-ultrasound-training-a-matter-of-competency-rather-than-volume
#10
J K Jensen, L Dyre, M E Jørgensen, L A Andreasen, M G Tolsgaard
BACKGROUND: Point-of-care ultrasonography plays an increasingly important role in the initial resuscitation of critically ill patients but acquisition of the skill is associated with long learning curves. The skills required to perform ultrasound examinations can be practiced in a simulated setting before being performed on actual patients. The aim of this study was to investigate the learning curves for novices training the FAST protocol on a virtual-reality simulator. METHODS: Ultrasound novices (N = 25) were instructed to complete a FAST training program on a virtual-reality ultrasound simulator...
July 2018: Acta Anaesthesiologica Scandinavica
https://www.readbyqxmd.com/read/29286445/3d-ultrasound-imaging-fast-and-cost-effective-morphometry-of-musculoskeletal-tissue
#11
Guido Weide, Stephan van der Zwaard, Peter A Huijing, Richard T Jaspers, Jaap Harlaar
The developmental goal of 3D ultrasound imaging (3DUS) is to engineer a modality to perform 3D morphological ultrasound analysis of human muscles. 3DUS images are constructed from calibrated freehand 2D B-mode ultrasound images, which are positioned into a voxel array. Ultrasound (US) imaging allows quantification of muscle size, fascicle length, and angle of pennation. These morphological variables are important determinants of muscle force and length range of force exertion. The presented protocol describes an approach to determine volume and fascicle length of m...
November 27, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/29246586/diagnostic-per-lesion-performance-of-a-simulated-gadoxetate-disodium-enhanced-abbreviated-mri-protocol-for-hepatocellular-carcinoma-screening
#12
B G Tillman, J D Gorman, J M Hru, M H Lee, M C King, C B Sirlin, R M Marks
AIM: To evaluate the diagnostic per-lesion performance of a simulated gadoxetate disodium-enhanced abbreviated MRI (AMRI) in cirrhotic and chronic hepatitis B (CHB) patients for hepatocellular carcinoma (HCC) screening. MATERIALS AND METHODS: Seventy-nine consecutive patients at risk for HCC due to cirrhosis and/or CHB were included in this retrospective study. For each patient, the first gadoxetate disodium-enhanced MRI between 2008 through 2014 was analysed. Two independent readers read an anonymised abbreviated image set comprising axial T1-weighted (W) images with fat saturation in the hepatobiliary phase, 20 minutes or more after gadoxetate injection, and axial T2W single-shot fast spin echo images...
May 2018: Clinical Radiology
https://www.readbyqxmd.com/read/29204875/focused-assessment-with-sonography-in-trauma-a-review-of-concepts-and-considerations-for-anesthesiology
#13
Jacob Pace, Robert Arntfield
The use of point-of-care ultrasound in trauma provides diagnostic clarity and routinely influences management. A scanning protocol known as the Focused Assessment with Sonography in Trauma (FAST) has been widely adopted by trauma providers of all specialties. The FAST exam addresses a broad array of pathologic conditions capable of causing instability, including hemoperitoneum, hemopericardium, hemothorax, and pneumothorax. The exam is an integral component to the primary assessment of injured patients and an iconic application of point-of-care ultrasound...
April 2018: Canadian Journal of Anaesthesia, Journal Canadien D'anesthésie
https://www.readbyqxmd.com/read/29182900/laparoscopic-sleeve-gastrectomy-for-morbid-obesity-role-of-intraluminal-and-intraperitoneal-postoperative-drainage
#14
G Currò, G Piscitelli, C Lazzara, I Komaei, A Fortugno, G Pinto, F Guccione, A Cogliandolo, A Dattola, S Latteri, G Navarra
BACKGROUND AND AIMS: Bleeding and staple line leak are the most common postoperative complications of LSG. To prevent and/or to promptly identify such complications, conventional peri-operative protocols imply post-operative gastric decompression (NGT) and staple line drain (IAD). Our aim was to evaluate the role of naso-gastric tube (NGT) and intra-abdominal drain (IAD) in preventing and/or facilitating identification and treatment of post-operative complications after sleeve gastrectomy...
July 2017: Il Giornale di Chirurgia
https://www.readbyqxmd.com/read/28956506/one-year-results-of-the-use-of-endovenous-radiofrequency-ablation-utilising-an-optimised-radiofrequency-induced-thermotherapy-protocol-for-the-treatment-of-truncal-superficial-venous-reflux
#15
George E Badham, Scott J Dos Santos, Lucinda Ba Lloyd, Judy M Holdstock, Mark S Whiteley
Background In previous in vitro and ex vivo studies, we have shown increased thermal spread can be achieved with radiofrequency-induced thermotherapy when using a low power and slower, discontinuous pullback. We aimed to determine the clinical success rate of radiofrequency-induced thermotherapy using this optimised protocol for the treatment of superficial venous reflux in truncal veins. Methods Sixty-three patients were treated with radiofrequency-induced thermotherapy using the optimised protocol and were followed up after one year (mean 16...
June 2018: Phlebology
https://www.readbyqxmd.com/read/28836045/extreme-learning-machine-framework-for-risk-stratification-of-fatty-liver-disease-using-ultrasound-tissue-characterization
#16
Venkatanareshbabu Kuppili, Mainak Biswas, Aswini Sreekumar, Harman S Suri, Luca Saba, Damodar Reddy Edla, Rui Tato Marinhoe, J Miguel Sanches, Jasjit S Suri
Fatty Liver Disease (FLD) is caused by the deposition of fat in liver cells and leads to deadly diseases such as liver cancer. Several FLD detection and characterization systems using machine learning (ML) based on Support Vector Machines (SVM) have been applied. These ML systems utilize large number of ultrasonic grayscale features, pooling strategy for selecting the best features and several combinations of training/testing. As result, they are computationally intensive, slow and do not guarantee high performance due to mismatch between grayscale features and classifier type...
August 23, 2017: Journal of Medical Systems
https://www.readbyqxmd.com/read/28766304/benefits-of-ultrasound-guided-transversus-abdominis-plane-block-for-open-appendectomy-in-children
#17
COMPARATIVE STUDY
Ilona Batko, Barbara K Kościelniak, Ilona Al-Mutari, Krzysztof Kobylarz
BACKGROUND: One of the most frequently performed emergency surgical procedures in children is an appendectomy. The aim of this study was to determine the benefits of supplementing standard, general anaesthesia with the ultrasound-guided right TAP block. METHODS: We analyzed the medical records of 90 children of both sexes, aged 4-16 years with a body mass of 16-78 kg who underwent general anaesthesia for open appendectomy. Sixty-two individuals were anaesthetized using the standard method, while 28 patients had an additional right-sided TAP block under ultrasound guidance...
2017: Anaesthesiology Intensive Therapy
https://www.readbyqxmd.com/read/28682892/in-patients-undergoing-fast-track-total-knee-arthroplasty-addition-of-buprenorphine-to-a-femoral-nerve-block-has-no-clinical-advantage-a-prospective-double-blinded-randomized-placebo-controlled-trial
#18
RANDOMIZED CONTROLLED TRIAL
Rienk van Beek, Harry J Zonneveldt, Tjeerd van der Ploeg, Jeroen Steens, Phillip Lirk, Marcus W Hollmann
BACKGROUND: Several adjuvants have been proposed to prolong the effect of peripheral nerve blocks, one of which is buprenorphine. In this randomized double blinded placebo controlled trial we studied whether the addition of buprenorphine to a femoral nerve block prolongs analgesia in patients undergoing total knee arthroplasty in a fast track surgery protocol. METHODS: The treatment group (B) was given an ultrasound-guided femoral nerve block with ropivacaine 0...
July 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28509763/achilles-tendon-load-is-progressively-increased-with-reductions-in-walking-speed
#19
Torsten Brauner, Philippe Pourcelot, Nathalie Crevier-Denoix, Thomas Horstmann, Scott C Wearing
INTRODUCTION: Achilles tendon rehabilitation protocols commonly recommend a gradual increase in walking speed to progressively intensify tendon loading. This study used transmission-mode ultrasound to evaluate the influence of walking speed on loading of the human Achilles tendon in vivo. METHODS: Axial transmission speed of ultrasound was measured in the right Achilles tendon of 33 adults (mean ± SD: age, 29 ± 3 yr; height, 1.725 ± 0.069 m; weight, 71.4 ± 19...
October 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/28471148/clinical-imaging-in-patients-experiencing-chest-pain
#20
REVIEW
Angelo Silverio, Rodolfo Citro, Federico Nardi
Non-invasive imaging modalities integrate the clinical and laboratory diagnostic work-up of patients admitted in emergency department for chest pain. Transthoracic echocardiography is the first-line imaging tool because it is rapidly and widely available, bedside feasible and cost-effective. Even when a comprensive exam is not feasible, a fast focused ultrasound exam should be performed. Contrast enhanced computed tomography is an easily accessible tool with specific application in patients suspected for pulmonary embolism (PE) and acute coronary syndrome (ACS) according to the pre-test risk assessment and to the clinical status...
December 2017: Minerva Cardioangiologica
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