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https://www.readbyqxmd.com/read/29315130/ultrasound-identification-of-diaphragm-by-novices-using-abcde-technique
#1
Jaasmit Khurana, Stephanie C Gartner, Latha Naik, Ban C H Tsui
BACKGROUND AND OBJECTIVES: In this study, we examined the consistency, rapidity, and reproducibility of the ABCDE technique for diaphragm identification. Operators using this method place the probe at the Anterior axillary line, watch for Breathing (lung sliding), and then move the probe Caudally to identify the Diaphragm for Examination. METHODS: A convenience sample of 100 patients was recruited from the preadmission clinic. Two novice operators each scanned the diaphragm using a linear ultrasound transducer in B-mode...
January 9, 2018: Regional Anesthesia and Pain Medicine
https://www.readbyqxmd.com/read/29313317/laparoscopic-excision-of-an-unusual-presentation-of-a-nabothian-cyst-case-report-and-review-of-the-literature
#2
Joseph Nassif, Hasan Nahoul, Ali Mourad, Ryan Yammine, Sally Khoury, Ali Khalil
Nabothian cysts are mucinous retention cysts formed through the accumulation of cervical mucus inside blocked cervical crypts leading to non-neoplastic mucinous cystic lesion in relation to the uterine cervix. The formation of Nabothian cysts is a common gynecological benign condition in women of reproductive age. While the presence of small-sized Nabothian cysts is usually clinically asymptomatic and requires no treatment or intervention, the diagnosis of larger Nabothian cysts can be mistaken with malignant tumors, including mucin producing carcinomas such as Adenoma malignum...
December 22, 2017: Surgical Technology International
https://www.readbyqxmd.com/read/29302784/initial-results-of-the-fusion-x-us-prototype-combining-3d-automated-breast-ultrasound-and-digital-breast-tomosynthesis
#3
Benedikt Schaefgen, Joerg Heil, Richard G Barr, Marcus Radicke, Aba Harcos, Christina Gomez, Anne Stieber, André Hennigs, Alexandra von Au, Julia Spratte, Geraldine Rauch, Joachim Rom, Florian Schütz, Christof Sohn, Michael Golatta
PURPOSE: To determine the feasibility of a prototype device combining 3D-automated breast ultrasound (ABVS) and digital breast tomosynthesis in a single device to detect and characterize breast lesions. METHODS: In this prospective feasibility study, the FUSION-X-US prototype was used to perform digital breast tomosynthesis and ABVS in 23 patients with an indication for tomosynthesis based on current guidelines after clinical examination and standard imaging. The ABVS and tomosynthesis images of the prototype were interpreted separately by two blinded experts...
January 4, 2018: European Radiology
https://www.readbyqxmd.com/read/29299926/hydrophilic-multi-template-molecularly-imprinted-biopolymers-based-on-a-green-synthesis-strategy-for-determination-of-b-family-vitamins
#4
Abbas Ostovan, Mehrorang Ghaedi, Maryam Arabi, Qian Yang, Jinhua Li, Lingxin Chen
A novel green synthesis strategy was proposed for preparation of multi-template molecularly imprinted biopolymers (mt-MIBP) in aqueous media with less consumption of organic solvents, which were subsequently used as sorbents of ultrasound-assisted dispersive solid-phase extraction (d-SPE) for simultaneous recognition and efficient separation of B-family vitamins in juice samples followed by high performance liquid chromatography (HPLC) determination. The obtained mt-MIBP was fully characterized by SEM, FT-IR, TEM and BET...
January 4, 2018: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29299658/fast-and-feasible-ultrasound-assisted-pretreatment-for-the-determination-of-organotin-compounds-in-environmental-samples
#5
Pamela Y Quintas, Ana L Oliva, Mónica B Alvarez, Andres H Arias, Claudia E Domini, Mariano Garrido, Jorge E Marcovecchio
The goal of this study was to improve an already established reference method, such as the one devoted to organotin compounds determination (Reference Method for Marine Pollution Studies, No. 59, UNEP). The proposed upgrade consists of replacing the mechanical shaking by ultrasound energy and applying low temperature throughout the whole procedure. The optimization of the new operational conditions was performed by using a factorial design. Quality control was performed using a certified sediment reference material (PACS-2) for sediments (82...
January 3, 2018: Archives of Environmental Contamination and Toxicology
https://www.readbyqxmd.com/read/29286445/3d-ultrasound-imaging-fast-and-cost-effective-morphometry-of-musculoskeletal-tissue
#6
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/29282315/dynamics-and-mechanisms-of-intracellular-calcium-waves-elicited-by-tandem-bubble-induced-jetting-flow
#7
Fenfang Li, Chen Yang, Fang Yuan, Defei Liao, Thomas Li, Farshid Guilak, Pei Zhong
One of the earliest events in cellular mechanotransduction is often an increase in intracellular calcium concentration associated with intracellular calcium waves (ICWs) in various physiologic or pathophysiologic processes. Although cavitation-induced calcium responses are believed to be important for modulating downstream bioeffects such as cell injury and mechanotransduction in ultrasound therapy, the fundamental mechanisms of these responses have not been elucidated. In this study, we investigated mechanistically the ICWs elicited in single HeLa cells by the tandem bubble-induced jetting flow in a microfluidic system...
December 27, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29275904/the-achilles-tendon-in-healthy-subjects-an-anthropometric-and-ultrasound-mapping-study
#8
Nick N Patel, Sameh A Labib
Ultrasonography is an inexpensive, fast, and reliable imaging technique widely used to assess the Achilles tendon. Although significant data exists regarding pathologic tendon changes, ultrasound data from healthy individuals are more limited. We aimed to better characterize ultrasound Achilles tendon measurements in healthy individuals and identify important correlating factors. The information collected included patient demographics, body habitus, activity level, foot dominance, and resting ankle angle. Ultrasound analysis was performed bilaterally on the Achilles tendons of 50 subjects using a high-frequency transducer to measure tendon width, thickness, cross-sectional area, and length...
December 21, 2017: Journal of Foot and Ankle Surgery: Official Publication of the American College of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/29258724/does-oral-radiocontrast-affect-image-quality-of-abdominal-sonography
#9
Christopher Dang, Eitan Dickman, Mark O Tessaro, Pranjal Patel, Maxim Dzeba, Antonios Likourezos, Illya Pushkar, Peter Homel, Lawrence E Haines
OBJECTIVE: Emergency Department patients with abdominal pain may require both an ultrasound (US) and computed tomography (CT) for an accurate diagnosis. Patients are often asked to drink oral radiocontrast while awaiting ultrasound, in order to better expedite a CT in the case of a non-diagnostic US. The impact of oral radiocontrast on US image quality has not been studied. We compared the quality of US images obtained before and after the ingestion of oral radiocontrast in healthy adult volunteers...
November 20, 2017: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/29246586/diagnostic-per-lesion-performance-of-a-simulated-gadoxetate-disodium-enhanced-abbreviated-mri-protocol-for-hepatocellular-carcinoma-screening
#10
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...
December 12, 2017: Clinical Radiology
https://www.readbyqxmd.com/read/29245234/hemorrhagic-cardiac-tamponade-complicated-by-acute-type-a-aortic-dissection-a-case-report-with-critical-care-ultrasound-findings
#11
Rui Guo, Yan-Mei Feng, Dong Wan
RATIONALE: Acute type A aortic dissection (AAAD) is a potentially fatal clinical crisis. Hemorrhagic cardiac tamponade due to the rupture of an ascending aortic root dissection is extremely dangerous and often lacks timely clinical evidence. We report sudden death in a patient diagnosed with AAAD and in whom critical care ultrasound highly indicated hemorrhagic cardiac tamponade. PRESENTING CONCERNS: A 75-year-old man was admitted to our emergency department with a complaint of chest pain for 8 hours...
December 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29243898/invasive-treatment-of-superficial-veins-of-the-lower-extremities
#12
Jukka Saarinen
Modern invasive treatment of superficial venous insufficiency of the lower extremities is largely based on the use of intravenous procedures under ultrasound guidance. The first-line treatment is thermoablation, in which the insufficient superficial vein, typically vena saphena magna or parva, is constricted by using laser or radio frequency energy under ultrasound guidance. The procedure is nearly always successful under local anesthesia and can be performed as an outpatient operation. When necessary, visible collateral varices can be treated with foam sclerotherapy or by surgical excision...
2017: Duodecim; Lääketieteellinen Aikakauskirja
https://www.readbyqxmd.com/read/29243129/contrast-enhanced-ultrasound-for-needle-biopsy-of-central-lung-cancer-with-atelectasis
#13
Zhikai Lei, Jun Lou, Lingyun Bao, Zhuying Lv
PURPOSE: Contrast-enhanced ultrasound (CEUS) can distinguish between central lung cancer and atelectatic lung tissue. The aim of this study was to explore the clinical value of CEUS for biopsy in patients with central lung cancer with obstructive atelectasis. METHODS: One hundred and twelve patients were selected and CEUS was performed to display central lung cancer and atelectatic lung tissue. The front edge of central lung cancer was punctured with a needle, avoiding the necrotic area, under the guidance of CEUS...
December 14, 2017: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/29241485/normal-ldl-cholesterol-levels-are-associated-with-subclinical-atherosclerosis-in-the-absence-of-risk%C3%A2-factors
#14
Leticia Fernández-Friera, Valentín Fuster, Beatriz López-Melgar, Belén Oliva, José M García-Ruiz, José Mendiguren, Héctor Bueno, Stuart Pocock, Borja Ibáñez, Antonio Fernández-Ortiz, Javier Sanz
BACKGROUND: Absence of cardiovascular risk factors (CVRFs) is traditionally considered low risk for atherosclerosis; however, individuals without CVRFs, as currently defined, still have events. OBJECTIVES: This study sought to identify predictors of subclinical atherosclerosis in CVRF-free individuals. METHODS: Participants from the PESA (Progression of Early Subclinical Atherosclerosis) study (n = 4,184) without conventional CVRFs were evaluated (n = 1,779; 45...
December 19, 2017: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/29235731/collaborative-model-for-training-and-credentialing-point-of-care-ultrasound-6-year-experience-and-quality-outcomes
#15
Carolynne J Cormack, Peter R Coombs, Kate E Guskich, Gabriel E Blecher, Neil Goldie, Ronnie Ptasznik
INTRODUCTION: Point-of-care ultrasound (PoCUS) is a rapidly growing area, providing physicians with a valuable diagnostic tool for patient assessment. This paper describes a collaborative model, utilising radiology department ultrasound expertise, to train and credential physicians in PoCUS. A 6-year experience of the implementation and outcomes of the programme established within the emergency departments of a large, multi-campus hospital network are presented. METHODS: A collaborative model was initially developed and implemented between radiology and emergency departments...
December 13, 2017: Journal of Medical Imaging and Radiation Oncology
https://www.readbyqxmd.com/read/29231781/dynamic-autoregulation-of-cerebral-blood-flow-measured-non-invasively-with-fast-diffuse-correlation-spectroscopy
#16
Ashwin B Parthasarathy, Kimberly P Gannon, Wesley B Baker, Christopher G Favilla, Ramani Balu, Scott E Kasner, Arjun G Yodh, John A Detre, Michael T Mullen
Cerebral autoregulation (CA) maintains cerebral blood flow (CBF) in the presence of systemic blood pressure changes. Brain injury can cause loss of CA and resulting dysregulation of CBF, and the degree of CA impairment is a functional indicator of cerebral tissue health. Here, we demonstrate a new approach to noninvasively estimate cerebral autoregulation in healthy adult volunteers. The approach employs pulsatile CBF measurements obtained using high-speed diffuse correlation spectroscopy (DCS). Rapid thigh-cuff deflation initiates a chain of responses that permits estimation of rates of dynamic autoregulation in the cerebral microvasculature...
January 1, 2017: Journal of Cerebral Blood Flow and Metabolism
https://www.readbyqxmd.com/read/29223612/predictive-value-of-focused-assessment-with-sonography-for-trauma-fast-for-laparotomy-in-unstable-polytrauma-egyptians-patients
#17
Adel Hamed Elbaih, Sameh T Abu-Elela
PURPOSE: The emergency physicians face significant clinical uncertainty when multiple trauma patients arrive in the emergency department (ED). The priorities for assessment and treatment of polytrauma patients are established in the primary survey. Focused assessment with sonography for trauma (FAST) is very essential clinical skill during trauma resuscitation. Use of point of care ultrasound among the trauma team working in the primary survey in emergency care settings is lacking in Suez Canal University Hospitals even ultrasound machine not available in ED...
November 23, 2017: Chinese Journal of Traumatology, Zhonghua Chuang Shang za Zhi
https://www.readbyqxmd.com/read/29217212/ovarian-morphology-by-transabdominal-ultrasound-correlates-with-reproductive-and-metabolic-disturbance-in-adolescents-with-pcos
#18
Beth W Rackow, Heidi Vanden Brink, Lynwood Hammers, Clare A Flannery, Marla E Lujan, Tania S Burgert
PURPOSE: To determine whether ovarian morphology imaged using transabdominal ultrasonography reflects clinical and metabolic features in adolescents with polycystic ovary syndrome (PCOS). METHODS: A retrospective pilot study was conducted in 33 adolescents (12-18 years) with PCOS as defined by hyperandrogenism and irregular cycles. Adolescents underwent the following assessments at a random time during the menstrual cycle: transabdominal ultrasonography, physical examination (height, weight, and systolic and diastolic blood pressure), fasting hormonal tests (free, percent free, and total testosterone, androstenedione, follicle stimulating hormone, luteinizing hormone), and metabolic tests (including an oral glucose tolerance test, fasting and 2-hour insulin and glucose, homeostatic model assessment of insulin resistance, and whole-body insulin sensitivity index)...
December 5, 2017: Journal of Adolescent Health: Official Publication of the Society for Adolescent Medicine
https://www.readbyqxmd.com/read/29215150/mri-monitoring-of-focused-ultrasound-sonications-near-metallic-hardware
#19
Hans Weber, Pejman Ghanouni, Aurea Pascal-Tenorio, Kim Butts Pauly, Brian A Hargreaves
PURPOSE: To explore the temperature-induced signal change in two-dimensional multi-spectral imaging (2DMSI) for fast thermometry near metallic hardware to enable MR-guided focused ultrasound surgery (MRgFUS) in patients with implanted metallic hardware. METHOD: 2DMSI was optimized for temperature sensitivity and applied to monitor focus ultrasound surgery (FUS) sonications near metallic hardware in phantoms and ex vivo porcine muscle tissue. Further, we evaluated its temperature sensitivity for in vivo muscle in patients without metallic hardware...
December 7, 2017: Magnetic Resonance in Medicine: Official Journal of the Society of Magnetic Resonance in Medicine
https://www.readbyqxmd.com/read/29208846/evaluation-of-the-efficacy-of-ultrasound-guided-local-lauromacrogol-injection-combined-with-aspiration-for-cesarean-scar-pregnancy-a-novel-treatment
#20
Ze-Ying Chai, Li Yu, Man-Man Liu, Tong-Wei Zhu, Feng Qi
OBJECTIVES: To evaluate the efficacy of ultrasound-guided local lauromacrogol injection combined with aspiration for treating cesarean scar pregnancy (CSP). METHODS: From July 2016 to December 2016, 18 patients diagnosed with CSP were treated with ultrasound-guided local lauromacrogol injection combined with aspiration. Clinical data and outcome were analysed. RESULTS: All patients were treated successfully. The amount of bleeding ranged between 10 and 50 mL...
November 28, 2017: Gynecologic and Obstetric Investigation
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