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Diagnostic ultrasound

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https://www.readbyqxmd.com/read/29684314/efficacy-of-endosonographic-procedures-in-mediastinal-re-staging-of-lung-cancer-after-neoadjuvant-therapy-a-systematic-review-and-diagnostic-accuracy-meta-analysis
#1
Valliappan Muthu, Inderpaul Singh Sehgal, Sahajal Dhooria, Ashutosh N Aggarwal, Ritesh Agarwal
BACKGROUND AND AIM: The optimal modality for re-staging the mediastinum following neoadjuvant therapy for lung cancer remains unclear. Surgical methods are currently considered the reference standard. Herein, we evaluate the role of endosonographic techniques for mediastinal re-staging in lung cancer. METHODS: Systematic review of PubMed and EmBase databases was performed to identify studies utilizing endoscopic ultrasound (EUS), endobronchial ultrasound (EBUS) or a combination (CUS) for mediastinal re-staging following induction therapy for stage III lung cancer...
April 20, 2018: Chest
https://www.readbyqxmd.com/read/29684288/endobronchial-ultrasound-for-nodal-staging-of-non-small-cell-lung-cancer-patients-with-radiologically-normal-mediastinum-a-meta-analysis
#2
Hazem El-Osta, Pushan Jani, Ali Mansour, Philip Rascoe, Syed Jafri
RATIONALE: An accurate assessment of the mediastinal lymph nodes status is essential in the staging and treatment planning of potentially resectable non-small cell lung cancer (NSCLC). OBJECTIVES: We performed this meta-analysis to evaluate the role of endobronchial ultrasound-guided transbronchial needle aspiration (EBUS-TBNA) in detecting occult mediastinal disease in NSCLC with no radiologic mediastinal involvement. METHODS: The PubMed, Embase, and Cochrane libraries were searched for studies describing the role of EBUS-TBNA in lung cancer patients with radiologically negative mediastinum...
April 23, 2018: Annals of the American Thoracic Society
https://www.readbyqxmd.com/read/29683969/diagnostic-accuracy-of-preoperative-imaging-for-differentiation-of-branch-duct-versus-mixed-duct-intraductal-papillary-mucinous-neoplasms
#3
Emmanuel E Ugbarugba, Carmen Grieco, Phil A Hart, Feng Li, Brett Sklaw, Kevin Cronley, Veeral M Oza, Benjamin J Swanson, Jon P Walker, Samer El-Dika, Darwin L Conwell, Somashekar G Krishna
OBJECTIVE: The aim of this study is to determine the diagnostic accuracy of preoperative evaluation to detect main pancreatic duct involvement in pancreatic cystic lesions thus differentiating mixed intraductal papillary mucinous neoplasm (IPMN) from branch duct (BD)-IPMN. METHODS: The pathology database of pancreatic resections from 2000 to 2014 was reviewed. Main pancreatic duct-IPMNs and IPMNs with intracystic mass/nodules were excluded. The preoperative test characteristics were analyzed using surgical histopathology as the "gold standard...
April 19, 2018: Pancreas
https://www.readbyqxmd.com/read/29683962/pulmonary-ultrasound-a-new-era-in-critical-care-medicine
#4
Silvio A Ñamendys-Silva, Eduardo Garrido-Aguirre, Juan P Romero-González, Roger G Mena-Arceo, Oscar Rojo Del Moral, Octavio González-Chon
Pulmonary ultrasonography is a complementary study that is easy to perform at the patient bedside with no need to transfer the patient to special areas. The technique provides information with high sensitivity and specificity for different pathologies. Pulmonary ultrasonography is a very important diagnostic tool in the assessment of lung, pleural, and chest wall diseases. Pulmonary ultrasound provides low-cost analysis, easy real-time reproduction, and safety, all of which have made it a beneficial tool in the diagnostic arsenal available to medical personnel...
April 20, 2018: Ultrasound Quarterly
https://www.readbyqxmd.com/read/29683199/comparison-of-superb-microvascular-imaging-with-color-flow-and-power-doppler-imaging-of-small-hepatocellular-carcinomas
#5
Theodore J Dubinsky, Jonathan Revels, Sherry Wang, Giuseppe Toia, Rachelle Sonneborn, Daniel S Hippe, Todd Erpelding
OBJECTIVES: The purpose of this study was to compare Superb Microvascular Imaging (SMI; Toshiba America Medical Systems, Tustin, CA) with conventional color flow Doppler (CFD) and power Doppler (PD) imaging in the liver to distinguish between malignant and benign liver neoplasms. METHODS: After Institutional Review Board approval (number 449984-ED), patients undergoing routine pre-radiofrequency ablation planning ultrasound examinations for suspected hepatocellular carcinomas (HCCs) of less than 2 cm in diameter between January 1, 2015, and July 1, 2016, were prospectively identified...
April 23, 2018: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/29683052/effect-of-transmit-beamforming-on-clutter-levels-in-transthoracic-echocardiography
#6
Vaibhav Kakkad, Melissa LeFevre, Kingshuk Roy Choudhury, Joseph Kisslo, Gregg E Trahey
Transmit beamforming has a strong impact on several factors that govern image quality, field-of-view, and frame-rate in ultrasound imaging. For cardiac applications, the visualization of fine structures and the ability to track their motion is equally important. Consequently, beamforming choices for echocardiography aim to optimize these trade-offs. Acoustic clutter can dramatically impact image quality and degrade the diagnostic value of cardiac ultrasound imaging. Clutter levels, however, are closely tied to the choice of beamforming configuration...
April 1, 2018: Ultrasonic Imaging
https://www.readbyqxmd.com/read/29681624/rapid-on-site-evaluation-during-endoscopic-ultrasound-guided-fine-needle-aspiration-of-lymph-nodes-does-not-increase-diagnostic-yield-a-randomized-multicenter-trial
#7
W F W Kappelle, M E Van Leerdam, M P Schwartz, M Bülbül, W A Buikhuisen, M A Brink, D M D S Sie-Go, H J M Pullens, S Nikolakopoulos, P J Van Diest, M Leenders, L M G Moons, A Bogte, P D Siersema, F P Vleggaar
OBJECTIVES: Studies on the impact of rapid on-site evaluation (ROSE) during endoscopic ultrasound-guided fine-needle aspiration (EUS-FNA) of lymph nodes are retrospective and have shown conflicting results. We aimed to compare the diagnostic yield of EUS-FNA of lymph nodes with ROSE (ROSE+) and without ROSE (ROSE-). METHODS: This was a multicenter, randomized controlled trial. Consecutive patients who were scheduled to undergo EUS-FNA of mediastinal or abdominal lymph nodes were randomized to ROSE+ or ROSE-...
April 23, 2018: American Journal of Gastroenterology
https://www.readbyqxmd.com/read/29679518/new-insights-in-the-use-of-pleural-ultrasonography-for-diagnosis-and-treatment-of-pleural-disease
#8
Giampietro Marchetti, Sabrina Arondi, Francesca Baglivo, Sara Lonni, Federico Quadri, Alberto Valsecchi, Nicola Venturoli, Paolo Ceruti
The use of transthoracic ultrasound has acquired a wide consensus among respiratory physicians during the last few years. The developing of portable and easily available devices favorites patient's bedside evaluation. Transthoracic ultrasound provides rapid, real-time and low-cost diagnostic information, allowing image-guided chest interventions and reducing procedural risks. The different acoustic impedance between aerated and not aerated organs produces artifacts known as A lines, B lines, sliding sign, lung point, etc...
April 21, 2018: Clinical Respiratory Journal
https://www.readbyqxmd.com/read/29679491/ionizing-radiation-induced-acoustics-for-radiotherapy-and-diagnostic-radiology-applications
#9
Susannah Hickling, Liangzhong Xiang, Kevin C Jones, Katia Parodi, Walter Assmann, Stephen Avery, Maritza Hobson, Issam El Naqa
Acoustic waves are induced via the thermoacoustic effect in objects exposed to a pulsed beam of ionizing radiation. This phenomenon has interesting potential applications in both radiotherapy dosimetry and treatment guidance as well as low dose radiological imaging. After initial work in the field in the 1980s and early 1990s, little research was done until 2013 when interest was rejuvenated, spurred on by technological advances in ultrasound transducers and the increasing complexity of radiotherapy delivery systems...
April 21, 2018: Medical Physics
https://www.readbyqxmd.com/read/29675677/quantitative-anatomy-of-the-ilium-s-primary-ossification-center-in-the-human-fetus
#10
Mariusz Baumgart, Marcin Wiśniewski, Magdalena Grzonkowska, Mateusz Badura, Maciej Biernacki, Zygmunt Siedlecki, Aleksandra Szpinda, Michał Szpinda, Katarzyna Pawlak-Osińska
PURPOSE: An understanding of the development of the ilium's primary ossification center may be useful in both determining the fetal stage and maturity, and for detecting congenital disorders. This study was performed to quantitatively examine the ilium's primary ossification center with respect to its linear, planar and volumetric parameters. MATERIALS AND METHODS: Using methods of CT, digital-image analysis and statistics, the size of the ilium's primary ossification center in 42 spontaneously aborted human fetuses of crown-rump length (CRL) ranged from 130 to 265 mm (aged 18-30 weeks) was studied...
April 19, 2018: Surgical and Radiologic Anatomy: SRA
https://www.readbyqxmd.com/read/29675365/mesenteric-infantile-hemangioma-diagnostic-work-up
#11
Francesco Esposito, Marco Di Serafino, Rosa Severino, Zukhra Vafina, Dolores Ferrara, Massimo Zeccolini
A very rare localization of infantile hemangioma (IH) is mesentery. It may manifest with intra-luminal or intra-peritoneal bleeding. Here there is the case of a 45-day-old infant, presenting with anemia and poor growth, subsequently referred to an uncommon hemangioma of the mesentery. As well as for most of IH, conservative treatment with only propranolol resulted in the disappearance of the lesion. Here we analyze ultrasound and magnetic resonance (MR) features of this uncommon lesion, trying to underline main characteristics at imaging in order to monitor the response to therapy...
March 2018: Quantitative Imaging in Medicine and Surgery
https://www.readbyqxmd.com/read/29675060/utility-and-safety-of-endobronchial-ultrasound-guided-transbronchial-needle-aspiration-in-patients-with-mediastinal-and-hilar-lymphadenopathy-western-region-experience
#12
Ahmed A Aljohaney
AIMS: The aim of the study was to evaluate the clinical utility and safety of endobronchial ultrasound-guided transbronchial needle aspiration (EBUS-TBNA) in patients with mediastinal and hilar lymphadenopathy and to explicitly describe the utility of this procedure in patient's outcome. METHODS: A retrospective review and analysis was conducted on 52 patients with mediastinal or hilar lymphadenopathy who underwent EBUS-TBNA from June 2012 to June 2016. All the patients were evaluated by computed tomography (CT) chest with contrast before EBUS examination...
April 2018: Annals of Thoracic Medicine
https://www.readbyqxmd.com/read/29674994/a-cross-sectional-study-on-cerebral-hemodynamics-after-mild-traumatic-brain-injury-in-a-pediatric-population
#13
Corey M Thibeault, Samuel Thorpe, Michael J O'Brien, Nicolas Canac, Mina Ranjbaran, Ilyas Patanam, Artin Sarraf, James LeVangie, Fabien Scalzo, Seth J Wilk, Ramon Diaz-Arrastia, Robert B Hamilton
The microvasculature is prominently affected by traumatic brain injury (TBI), including mild TBI (concussion). Assessment of cerebral hemodynamics shows promise as biomarkers of TBI, and may help inform development of therapies aimed at promoting neurologic recovery. The objective of this study was to assess the evolution in cerebral hemodynamics observable with transcranial Doppler (TCD) ultrasound in subjects suffering from a concussion at different intervals during recovery. Pediatric subjects between the ages of 14 and 19 years clinically diagnosed with a concussion were observed at different points post-injury...
2018: Frontiers in Neurology
https://www.readbyqxmd.com/read/29674383/bet-1-can-salter-harris-type-i-fractures-be-diagnosed-by-ultrasound
#14
Erica Beatty, Patrick Archambault
A short-cut review was carried out to establish the diagnostic accuracy of ultrasound for Salter-Harris type 1 fractures. Three studies were directly relevant to the question. The author, date and country of publication, patient group studied, study type, relevant outcomes, results and study weaknesses of these papers are tabulated. The clinical bottom line is that ultrasound may allow visualisation of Salter-Harris type 1 fractures. However, little is known as to its sensitivity and specificity, and therefore it cannot be used to eliminate the diagnosis...
May 2018: Emergency Medicine Journal: EMJ
https://www.readbyqxmd.com/read/29674264/ultrasonic-modulation-of-neural-circuit-activity
#15
REVIEW
William J Tyler, Shane W Lani, Grace M Hwang
Ultrasound (US) is recognized for its use in medical imaging as a diagnostic tool. As an acoustic energy source, US has become increasingly appreciated over the past decade for its ability to non-invasively modulate cellular activity including neuronal activity. Data obtained from a host of experimental models has shown that low-intensity US can reversibly modulate the physiological activity of neurons in peripheral nerves, spinal cord, and intact brain circuits. Experimental evidence indicates that acoustic pressures exerted by US act, in part, on mechanosensitive ion channels to modulate activity...
April 16, 2018: Current Opinion in Neurobiology
https://www.readbyqxmd.com/read/29673811/endovascular-aortic-repair-follow-up-protocol-based-on-contrast-enhanced-ultrasound-is-safe-and-effective
#16
Emiliano Chisci, Linda Harris, Azzurra Guidotti, Angelica Pecchioli, Clara Pigozzi, Enrico Barbanti, Leonardo Ercolini, Stefano Michelagnoli
OBJECTIVES: The aim of this study was to define the safety and effectiveness of a contrast enhanced ultrasound (CEUS) based follow up for endovascular aortic repair (EVAR) surveillance at a mid-term period (4 years). METHODS: At the tertiary referral centre EVAR surveillance was based on plain abdominal radiograph and duplex ultrasound (CDU), with computed tomography angiography (CTA) reserved for any non-diagnostic imaging during the period 1999-2011 (Group A)...
April 17, 2018: European Journal of Vascular and Endovascular Surgery
https://www.readbyqxmd.com/read/29672872/neuromuscular-ultrasound-of-the-brachial-plexus-a-standardized-approach
#17
REVIEW
Vanessa Baute, Jeffrey A Strakowski, Jon W Reynolds, Kristopher R Karvelas, Paul Ehlers, Kevin J Brenzy, Zhongyu J Li, Michael S Cartwright
Reliable assessment of brachial plexus disorders can be challenging due to the complexity of the anatomy and variation of potential pathology. Electrodiagnostic testing can be both uncomfortable for the patient and inconclusive. Ultrasound can serve as a complement to clinical assessment, electrodiagnostic testing, and other imaging modalities. This paper describes a systematic approach for performing neuromuscular ultrasound for suspected pathology in the brachial plexus. The literature regarding techniques for brachial plexus ultrasound was reviewed...
April 19, 2018: Muscle & Nerve
https://www.readbyqxmd.com/read/29669766/rare-case-of-hepatic-haematoma-following-endoscopic-retrograde-cholangiopancreatography
#18
Teresa Vieira Caroço, João Mendes Louro, Maria Inês Coelho, Carlos Eduardo Costa Almeida
Endoscopic retrograde cholangiopancreatography (ERCP) is a commonly used diagnostic and therapeutic technique but it is not free of complications. Subcapsular hepatic haematoma is a rare but potentially fatal complication. A 71-years-old male patient resorted to the emergency department 36 hours after an uneventful ERCP presenting with severe abdominal pain and haemoglobin drop. Abdominal ultrasound and CT scan diagnosed a subcapsular hepatic haematoma. The patient was haemodynamically normal and was successfully treated with a conservative management...
April 18, 2018: BMJ Case Reports
https://www.readbyqxmd.com/read/29669237/current-practice-of-diagnosis-and-management-of-acute-kidney-injury-in-intensive-care-unit-in-resource-limited-settings
#19
Nattachai Srisawat, Nattaya Sintawichai, Win Kulvichit, Nuttha Lumlertgul, Patita Sitticharoenchai, Nicha Thamrongsat, Sadudee Peerapornratana
PURPOSE: In a resource limited settings, there is sparse information about the management of acute kidney injury (AKI) based on systemic data collection. This survey aimed to described the current management of AKI in intensive care units (ICUs) across Thailand. MATERIALS AND METHODS: Questionnaires were distributed to 160 physicians involved in the intensive care between January and December 2014 across Thailand. Distribution was done through an online survey platform or telephone interview...
April 11, 2018: Journal of Critical Care
https://www.readbyqxmd.com/read/29668586/combination-of-serum-ca19-9-and-ca125-levels-and-contrast-enhanced-ultrasound-parametric-data-facilitates-to-differentiate-ovarian-serous-carcinoma-from-ovarian-malignant-epithelial-cancer
#20
Wei Zhang, Liying Wang, Zhongqiu Xin
Ovarian serous carcinoma (OSC) is semimalignant ovarian tumors that localized in the ovary at the initial presentation, and can be surgically resected in an excellent prognosis. In contrast, surgical treatment plus adjuvant chemotherapy for ovarian malignant epithelial cancer (OMEC) is the standard treatment stratagem that is painful with poor prognosis and cost quite expensively. Thus, the accurate preoperative differentiation of OSC from OMEC is important for determining the treatment methods and decreasing the cost for individual patients...
April 2018: Medicine (Baltimore)
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