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FAST protocol ultrasound

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https://www.readbyqxmd.com/read/30221831/fast-food-meal-reduces-peripheral-artery-endothelial-function-but-not-cerebral-vascular-hypercapnic-reactivity-in-healthy-young-men
#1
Jordan C Patik, Wesley J Tucker, Bryon M Curtis, Michael D Nelson, Aida Nasirian, Suwon Park, Robert M Brothers
Consumption of a representative fast-food meal (FFMeal) acutely impairs peripheral conduit artery vascular function; however, the effect on cerebral vascular function remains unknown. This study tested the hypothesis that a FFMeal would impair cerebral vascular function as indexed by an attenuated increase in cerebral vascular conductance (CVCI) in the middle cerebral artery (MCA) during a hypercapnic challenge. Ten healthy men (age: 24 ± 3 years, BMI: 24.3 ± 3.8 kg/m2 ) were studied under two conditions; a standardized FFMeal (990 kcals, 50% fat, 36% carbohydrate, 14% protein, and 2120 mg sodium) and a fasting control condition...
September 2018: Physiological Reports
https://www.readbyqxmd.com/read/30194749/abbreviated-mri-of-the-breast-does-it-provide-value
#2
Doris Leithner, Linda Moy, Elizabeth A Morris, Maria A Marino, Thomas H Helbich, Katja Pinker
MRI of the breast is the most sensitive test for breast cancer detection and outperforms conventional imaging with mammography, digital breast tomosynthesis, or ultrasound. However, the long scan time and relatively high costs limit its widespread use. Hence, it is currently only routinely implemented in the screening of women at an increased risk of breast cancer. To overcome these limitations, abbreviated dynamic contrast-enhanced (DCE)-MRI protocols have been introduced that substantially shorten image acquisition and interpretation time while maintaining a high diagnostic accuracy...
September 8, 2018: Journal of Magnetic Resonance Imaging: JMRI
https://www.readbyqxmd.com/read/30125557/first-trimester-aspiration-abortion-practices-a-survey-of-united-states-abortion-providers
#3
Katharine O White, Heidi E Jones, Antonella Lavelanet, Wendy V Norman, Edith Guilbert, E Steve Lichtenberg, Maureen Paul
OBJECTIVES: To assess whether first-trimester aspiration abortion practices of US providers agree with evidence-based policy guidelines. STUDY DESIGN: We sent surveys by mail or electronically to all abortion facilities in the United States identified via professional networks and websites from June through December 2013. Administrators reported on the volume of procedures performed at their site(s) through 13 weeks 6 days' gestation and on clinic services. Clinicians reported on personal demographic characteristics and abortion practices...
August 17, 2018: Contraception
https://www.readbyqxmd.com/read/30064919/multiparametric-mri-characterization-of-funaki-types-of-uterine-fibroids-considered-for-mr-guided-high-intensity-focused-ultrasound-mr-hifu-therapy
#4
Sajan Andrews, Qing Yuan, April Bailey, Yin Xi, Rajiv Chopra, Robert Staruch, Ivan Pedrosa
RATIONALE AND OBJECTIVES: To compare quantitative multiparametric magnetic resonance imaging (mpMRI) data of symptomatic uterine fibroids being considered for MR-guided high-intensity focused ultrasound ablation with fibroid characterization based on the Funaki Classification scheme. MATERIALS AND METHODS: This was a prospective, Institutional Review Board -approved, Health Insurance Portability, and Accountability Act-compliant study. Informed consent was obtained...
July 28, 2018: Academic Radiology
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
#5
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
#6
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...
August 29, 2018: Anales del Sistema Sanitario de Navarra
https://www.readbyqxmd.com/read/29914554/prehospital-point-of-care-emergency-ultrasound-a-cohort-study
#7
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
#8
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...
August 2018: Experimental Physiology
https://www.readbyqxmd.com/read/29708590/standardised-assessment-of-competence-in-focused-assessment-with-sonography-for-trauma
#9
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
#10
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
#11
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
#12
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
#13
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
#14
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
#15
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
#16
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
#17
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
#18
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
#19
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
#20
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
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