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Bedside ultrasound

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https://www.readbyqxmd.com/read/28227419/an-automated-bladder-volume-measurement-algorithm-by-pixel-classification-using-random-forests
#1
Pavan Annangi, Sigmund Frigstad, S B Subin, Anders Torp, Sundararajan Ramasubramaniam, Srinivas Varna, Pavan Annangi, Sigmund Frigstad, S B Subin, Anders Torp, Sundararajan Ramasubramaniam, Srinivas Varna, Sundararajan Ramasubramaniam, Anders Torp, Srinivas Varna, Sb Subin, Pavan Annangi, Sigmund Frigstad
Residual bladder volume measurement is a very important marker for patients with urinary retention problems. To be able to monitor patients with these conditions at the bedside by nurses or in an out patient setting by general physicians, hand held ultrasound devices will be extremely useful. However to increase the usage of these devices by non traditional users, automated tools that can aid them in the scanning and measurement process will be of great help. In our paper, we have developed a robust segmentation algorithm to automatically measure bladder volume by segmenting bladder contours from sagittal and transverse ultrasound views using a combination of machine learning and active contour algorithms...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28211004/point-of-care-ultrasound-and-doppler-ultrasound-evaluation-of-vascular-injuries-in-penetrating-and-blunt-trauma
#2
REVIEW
Miguel Angel Montorfano, Fernando Pla, Leonardo Vera, Omar Cardillo, Stefano Geniere Nigra, Lisandro Miguel Montorfano
BACKGROUND: The aim of this study is to describe point-of-care ultrasound and Color flow Duplex Doppler characteristics of penetrating and blunt trauma-related vascular injuries of the limbs and neck. METHODS: Penetrating and blunt trauma-related vascular injuries such as vein disruption, intimal flap, deep vein thrombosis, arterial dissection, pseudoaneurysm, and arteriovenous fistulae are discussed in this manuscript. Images of the most significant lesions of our personal clinical experience are presented to illustrate point-of-care ultrasound and Color flow Duplex Doppler ultrasound findings...
December 2017: Critical Ultrasound Journal
https://www.readbyqxmd.com/read/28211003/an-easy-to-build-low-budget-point-of-care-ultrasound-simulator-from-linux-to-a-web-based-solution
#3
Domagoj Damjanovic, Ulrich Goebel, Benedikt Fischer, Martin Huth, Hartmut Breger, Hartmut Buerkle, Axel Schmutz
BACKGROUND: Hands-on training in point-of-care ultrasound (POC-US) should ideally comprise bedside teaching, as well as simulated clinical scenarios. High-fidelity phantoms and portable ultrasound simulation systems are commercially available, however, at considerable costs. This limits their suitability for medical schools. A Linux-based software for Emergency Department Ultrasound Simulation (edus2TM) was developed by Kulyk and Olszynski in 2011. Its feasibility for POC-US education has been well-documented, and shows good acceptance...
December 2017: Critical Ultrasound Journal
https://www.readbyqxmd.com/read/28207445/the-nuts-and-bolts-of-performing-focused-cardiovascular-ultrasound-focus
#4
Josh M Zimmerman, Bradley J Coker
The benefit of focused cardiovascular ultrasound as an adjunct to physical examination has been shown in numerous specialties and in diverse clinical settings. Although the value of these techniques to the practice of anesthesiology is substantial, they have only begun to be incorporated. This article reviews the basic techniques required to perform a bedside focused cardiovascular ultrasound (ie, FoCUS examination). This includes a discussion of patient positioning, breath control, probe position, and manipulation and was supplemented by normal and abnormal examples for review...
March 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28195961/bedside-ultrasound-to-facilitate-early-diagnosis-and-ease-of-follow-up-in-neurogenic-heterotopic-ossification-a-pilot-study-from-the-intensive-care-unit
#5
Konstantinos Stefanidis, Peter Brindley, Raymond Ramnarine, Michael Blaivas, Mohammad Daneshi, Paul S Sidhu, Abdoulrahman Alharthy, Dimitrios Karakitsos
OBJECTIVE: To explore the potential role of ultrasound (US) as a bedside tool in intensive care unit patients with presumed neurogenic heterotopic ossification (NHO). SETTING: Tertiary university teaching hospitals. PARTICIPANTS: Critical care patients with acquired brain injury. DESIGN: A multicenter prospective study of critical care patients with possible NHO. MAIN MEASURES: Following a screening clinical examination, the major joints were evaluated with US, serum laboratory work, and x-ray...
February 10, 2017: Journal of Head Trauma Rehabilitation
https://www.readbyqxmd.com/read/28188323/contrast-echocardiography-for-detection-of-myocardial-perfusion-abnormalities-a%C3%A2-clinical-perspective
#6
N Karogiannis, R Senior
Myocardial contrast echocardiography (MCE) is a well-established imaging technique in the assessment of patients with known or suspected coronary artery disease. The use of ultrasound contrast agents has optimized the evaluation of left ventricular function and, moreover, permits simultaneous assessment of the myocardial perfusion. This technique utilizes microbubbles that remain in the intravascular space and the contrast intensity reflects the concentration of the microbubbles in the myocardium. A homogeneous opacification of the myocardium after destruction of the microbubbles during high-power imaging is regarded as normal perfusion and absence of CAD...
February 10, 2017: Herz
https://www.readbyqxmd.com/read/28185691/thoracic-ultrasound-technique-applications-and-interpretation
#7
REVIEW
Suraj H Rambhia, Catherine A D'Agostino, Ali Noor, Robert Villani, Jason J Naidich, John S Pellerito
Thoracic ultrasound is used at the bedside in emergency and critical care settings. Advantages of ultrasound include rapid real-time, low-cost, diagnostic information that can direct patient care without the use of ionizing radiation. We describe methods on how to perform lung ultrasound, with the intent to educate the radiologist who might otherwise be relatively unfamiliar with thoracic sonography. We describe and depict the normal sonographic appearance of lung anatomy. We also show the sonographic appearance of a wide range of lung and pleural pathologies such as pneumonia, pneumothorax, as well as lung and pleural masses...
December 15, 2016: Current Problems in Diagnostic Radiology
https://www.readbyqxmd.com/read/28185628/use-of-bedside-abdominal-ultrasound-to-confirm-intestinal-motility-in-neonates-with-gastroschisis-a-feasibility-study
#8
Lori A Gurien, Deidre L Wyrick, Melvin S Dassinger, Jeffrey M Burford, Steven C Mehl, Marie E Saylors, Samuel D Smith
BACKGROUND: Optimal timing to begin feeds in neonates with gastroschisis remains unclear. We examined if bedside abdominal ultrasound for intestinal motility is a feasible tool to detect return of bowel function in neonates with gastroschisis. METHODS: Neonates born with uncomplicated gastroschisis who underwent closure received daily ultrasound exams. Full motility was defined as peristalsis seen in all quadrants. Average length of time between abdominal wall closure and start of enteral feeds, full ultrasound motility, and clinical characteristics was compared using Student's t-tests...
January 26, 2017: Journal of Pediatric Surgery
https://www.readbyqxmd.com/read/28183572/cervical-sympathetic-blockade-for-the-management-of-electrical-storm
#9
Rehan Ali, Jeffrey Ciccone, Victor Tseng
A 75-year-old man presented with dizziness and fatigue secondary to ventricular and supraventricular arrhythmias. He underwent an elective ablation but continued to suffer from ventricular tachycardia with cardiovascular instability despite antiarrhythmic therapy with multiple agents. The patient continued to develop episodes of ventricular tachycardia and an episode of ventricular fibrillation. Electrical storm encompasses a situation of cardiac instability which may present as several episodes of ventricular tachycardia or ventricular fibrillation in a short period...
February 2017: Journal of Clinical Anesthesia
https://www.readbyqxmd.com/read/28178729/re-examining-physical-findings-with-point-of-care-ultrasound-a-narrative-review
#10
William Diprose, Francois Verster, Cameron Schauer
The art of physical examination has continued to be practised by physicians largely unchanged for over 200 years. Ultrasound, once the domain of the radiologist, is now being increasingly used by emergency physicians and intensivists to make rapid, accurate diagnoses at the point-of-care. We review the growing body of evidence supporting point-of-care ultrasound (PoCUS) as the preferred alternative to many aspects of the cardiovascular, respiratory, abdominal and neurological examinations in internal medicine...
January 27, 2017: New Zealand Medical Journal
https://www.readbyqxmd.com/read/28171688/diagnostic-value-and-effect-of-bedside-ultrasound-in-acute-appendicitis-in-the-emergency-department
#11
Faruk Gungor, Taylan Kilic, Kamil Can Akyol, Gizem Ayaz, Umut Cengiz Cakir, Mehmet Akcimen, Cenker Eken
OBJECTIVE: Early and accurate diagnosis of acute appendicitis (AA) with ultrasound can minimize the morbidity and mortality of the patients. In this regard, ultrasound can help to the emergency physicians (EPs) in the diagnosing process and clinical decision making for AA. Therefore, we primarily aimed to evaluate the effectiveness of point of care ultrasound (POCUS) in clinical decision making of EPs for the diagnostic evaluation for AA in the emergency department (ED). METHODS: The study sample consisted of patients aged >18 years that presented to the ED with an abdominal pain and underwent diagnostic evaluation for AA...
February 7, 2017: Academic Emergency Medicine: Official Journal of the Society for Academic Emergency Medicine
https://www.readbyqxmd.com/read/28168447/how-to-achieve-ultrasound-guided-femoral-venous-access-the-new-standard-of-care-in-the-electrophysiology-laboratory
#12
REVIEW
Benedict M Wiles, Nicholas Child, Paul R Roberts
PURPOSE: Bedside vascular ultrasound machines are increasingly available. They are used to facilitate safer vascular access across a number of different specialties. In the electrophysiology laboratory however, where patients are frequently anticoagulated and require the insertion of multiple venous sheaths, anatomical landmark techniques predominate. Despite the high number of vascular complications associated with electrophysiological procedures and the increasing evidence to support its use in electrophysiology, ultrasound remains underutilised...
February 7, 2017: Journal of Interventional Cardiac Electrophysiology: An International Journal of Arrhythmias and Pacing
https://www.readbyqxmd.com/read/28166076/bedside-ultrasound-in-the-emergency-department-to-detect-hydronephrosis-for-the-evaluation-of-suspected-ureteric-colic
#13
R Shrestha, R M Shakya, A Khan A
Background Renal colic is a common emergency department presentation. Hydronephrosis is indirect sign of urinary obstruction which may be due to obstructing ureteric calculus and can be detected easily by bedside ultrasound with minimal training. Objective To compare the accuracy of detection of hydronephrosis performed by the emergency physician with that of radiologist's in suspected renal colic cases. Method This was a prospective observational study performed over a period of 6 months. Patients >8 years with provisional diagnosis of renal colic with both the bedside ultrasound and the formal ultrasound performed were included...
April 2016: Kathmandu University Medical Journal (KUMJ)
https://www.readbyqxmd.com/read/28165246/ultrasound-molecular-imaging-of-angiogenesis-using-vascular-endothelial-growth-factor-conjugated-microbubbles
#14
Jianjun Wang, Bin Qin, Xucai Chen, William R Wagner, Flordeliza S Villanueva
Imaging of angiogenesis receptors could provide a sensitive and clinically useful method for detecting neovascularization such as occurs in malignant tumors, and responses to antiangiogenic therapies for such tumors. We tested the hypothesis that microbubbles (MB) tagged with human VEGF121 (MBVEGF) bind to the kinase insert domain receptor (KDR) in vitro and angiogenic endothelium in vivo, and that this specific binding can be imaged on a clinical ultrasound system. In this work, targeted adhesion of MBVEGF was evaluated in vitro using a parallel plate flow system containing adsorbed recombinant human KDR...
February 15, 2017: Molecular Pharmaceutics
https://www.readbyqxmd.com/read/28151822/clinical-significance-of-portal-hypertension-diagnosed-with-bedside-ultrasound-after-cardiac-surgery
#15
André Y Denault, William Beaubien-Souligny, Mahsa Elmi-Sarabi, Roberto Eljaiek, Ismail El-Hamamsy, Yoan Lamarche, Alexandra Chronopoulos, Jean Lambert, Josée Bouchard, Georges Desjardins
BACKGROUND: Portal venous flow pulsatility detected by Doppler ultrasound is a sign of congestive heart failure in noncritically ill patients. The assessment of portal and splenic venous flows has never been reported in patients undergoing cardiac surgery. METHODS: This is a case series performed in patients undergoing cardiac surgery between February 2014 and February 2015 in which portal and/or splenic venous flows were assessed by the attending anesthesiologist during surgery or by the intensivist after surgery using transthoracic echography in 9 patients or transesophageal echocardiography in 5 patients...
February 1, 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28144068/investigating-a-unilateral-pleural-effusion-a-tale-of-a-medical-error-and-diagnostic-delays
#16
Suminda Welagedara, Tokyo Moe Swe, Krishna Bajee Sriram
We report the case of an elderly Asian man where a medical error and diagnostic delays obscured the diagnosis of pleural tuberculosis (TB). The patient was hospitalized for evaluation of a unilateral pleural effusion. Initially, the patient was subjected to a pleural aspiration on the wrong side due to a lack of bedside ultrasound guidance. Subsequently, the patient underwent several investigations but not a blind closed pleural biopsy (BCPB) due to a lack of equipment. Furthermore, the patient was deemed to be too sick to undergo a thoracoscopic pleural procedure...
January 2017: Lung India: Official Organ of Indian Chest Society
https://www.readbyqxmd.com/read/28139307/the-efficiency-of-bedside-ultrasonography-in-patients-with-wrist-injury-and-comparison-with-other-radiological-imaging-methods-a-prospective-study
#17
Ahmet Burak Oguz, Onur Polat, Muge Gunalp Eneyli, Behnan Gulunay, Merve Eksioglu, Serdar Gurler
STUDY OBJECTIVE: Our aim was to determine the efficiency of ultrasound (US) scanning in patients with wrist trauma admitted to the emergency department and to compare US diagnostic usage with other radiological imaging methods. METHODS: Patients who presented to the emergency department with wrist injury and who met the inclusion criteria and exclusion criteria were eligible. For all patients, US evaluation of the whole wrist was performed by an emergency physician before other radiological imaging methods (radiographies, computed tomography (CT) and magnetic resonance (MR) imaging)...
January 26, 2017: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28119013/bedside-sonography-for-the-diagnosis-of-esophageal-food-impaction
#18
Jennifer Singleton, Jesse M Schafer, Jeremiah M Hinson, Erin M Kane, Sherieka Wright, Beatrice Hoffmann
BACKGROUND: Esophageal foreign body (EFB) and impaction are common gastrointestinal emergencies. Detection with standard imaging can be challenging. Computed tomography is a commonly used non-invasive imaging modality, but is not 100% sensitive and not always feasible. Sensitivity of plain film x-ray varies widely and the addition of a barium swallow can obscure evaluation by subsequent esophagogastroduodenoscopy (EGD). Use of emergency ultrasound (EUS) for detection of EFB in adults has not been previously studied...
January 11, 2017: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28117110/hemorrhagic-pericardial-cyst-diagnosis-accelerated-by-emergency-physician-echocardiography-a-case-report
#19
Michael F Yip, Brooks M Walsh
BACKGROUND: The differential diagnosis for chest pain in the emergency department is broad and includes both benign and life-threatening conditions-with pericardial cyst as a rare example. Emergency physician-performed point-of-care focused cardiac ultrasound (FOCUS) is increasingly recognized as a useful modality in the evaluation of patients with chest pain. CASE REPORT: We report a case of hemorrhagic pericardial cyst in a young woman presenting with chest pain in which findings on FOCUS contradicted findings on chest x-ray study and thus, accelerated diagnosis and definitive treatment...
January 20, 2017: Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28116020/adapting-gel-wax-into-an-ultrasound-guided-pericardiocentesis-model-at-low-cost
#20
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
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