keyword
https://read.qxmd.com/read/33836534/cytologic-assessment-of-cystic-intraductal-lesions-of-the-pancreatobiliary-tract
#1
Michelle D Reid
CONTEXT.—: Because of new and improved imaging techniques, cystic/intraductal pancreatobiliary tract lesions are increasingly being discovered, and brushings or endoscopic ultrasound/computed tomography/magnetic resonance imaging-guided fine-needle aspiration biopsies from these lesions have become an integral part of pathologists' daily practice. Because patient management has become increasingly conservative, accurate preoperative diagnosis is critical. Cytologic distinction of low-risk (pseudocysts, serous cystadenoma, lymphoepithelial cysts, and squamoid cysts of the pancreatic duct) from high-risk pancreatic cysts (intraductal papillary mucinous neoplasm and mucinous cystic neoplasm) requires incorporation of clinical, radiologic, and cytologic findings, in conjunction with chemical and molecular analysis of cyst fluid...
April 9, 2021: Archives of Pathology & Laboratory Medicine
https://read.qxmd.com/read/33836508/the-impact-of-ct-image-parameters-and-skull-heterogeneity-modeling-on-the-accuracy-of-transcranial-focused-ultrasound-simulations
#2
Hazael Montanaro, Cristina Pasquinelli, Hyunjoo Jenny Lee, Hyungguk Kim, Hartwig R Siebner, Niels Kuster, Axel Thielscher, Esra Neufeld
OBJECTIVE: Low-intensity transcranial ultrasound stimulation (TUS) is a promising non-invasive brain stimulation (NIBS) technique. TUS can reach deeper areas and target smaller regions in the brain than other NIBS techniques, but its application in humans is hampered by the lack of a straightforward and reliable procedure to predict the induced ultrasound exposure. Here, we examined how skull modeling affects computer simulations of TUS. APPROACH: We characterized the ultrasonic beam after transmission through a sheep skull with a hy-drophone and performed CT image-based simulations of the experimental setup...
April 9, 2021: Journal of Neural Engineering
https://read.qxmd.com/read/33836503/blood-volume-flow-in-the-superficial-temporal-artery-assessed-by-duplex-sonography-predicting-extracranial-intracranial-bypass-patency-in-moyamoya-disease
#3
Florian Connolly, Joan Alsolivany, Marcus Czabanka, Peter Vajkoczy, Jose M Valdueza, Jens E Röhl, Eberhard Siebert, Leon A Danyel
OBJECTIVE: Superficial temporal artery-middle cerebral artery (STA-MCA) bypass surgery is an important therapy for symptomatic moyamoya disease. Its success depends on bypass function, which may be impaired by primary or secondary bypass insufficiency. Catheter angiography is the current gold standard to assess bypass function, whereas the diagnostic value of ultrasonography (US) has not been systematically analyzed so far. METHODS: The authors analyzed 50 STA-MCA bypasses in 39 patients (age 45 ± 14 years [mean ± SD]; 26 female, 13 male)...
April 9, 2021: Journal of Neurosurgery
https://read.qxmd.com/read/33836458/effects-of-low-vs-high-frequency-local-vibration-on-mild-moderate-muscle-spasticity-ultrasonographical-and-functional-evaluation-in-patients-with-multiple-sclerosis
#4
Fatma Ayvat, Levent Özçakar, Ender Ayvat, Sibel Aksu Yıldırım, Muhammed Kılınç
BACKGROUND: Local vibration (LV) is a physiotherapy application that aims to reduce spasticity. The study aimed to compare the effects of 50 Hz vs. 100 Hz LV on mild-moderate spasticity, functional performance and muscle architecture. METHODS: Thirty-three patients were randomly divided into three groups: 50 Hz LV group, 100 Hz LV group and the control group. Physical therapy was applied for one hour a day, three days a week, for a total of eight weeks. LV was applied to the right and left medial gastrocnemius muscles for five minutes...
March 31, 2021: Multiple Sclerosis and related Disorders
https://read.qxmd.com/read/33836374/evaluation-of-an-automatic-method-for-detection-of-defects-in-linear-and-curvilinear-ultrasound-transducers
#5
Robert Lorentsson, Nasser Hosseini, Lars Gunnar Månsson, Magnus Båth
PURPOSE: The high incidence of defective ultrasound transducers in clinical practice has been shown in several studies. Recently, a novel method using only stored images for automatic detection of defective transducers was presented. The method makes it possible to remotely monitor many transducers at the same time and send a notification when a defective transducer is found. The purpose of the present study was to evaluate the novel method and assess how well it performs when compared to an established method as reference...
April 6, 2021: Physica Medica: PM
https://read.qxmd.com/read/33836287/deep-venous-thrombosis-and-pulmonary-embolism-among-hospitalized-coronavirus-disease-2019-covid-19-positive-patients-predict-higher-mortality-prolonged-intensive-care-unit-and-hospital-stays-in-a-multi-site-healthcare-system
#6
Y Erben, C Franco-Mesa, P Gloviczki, W Stone, A Quinones-Hinojosa, A J Meltzer, M Lin, M R F Greenway, O Hamid, Z Devcic, B Toskich, C Ritchie, C J Lamb, R R De Martino, J Siegel, H Farres, A G Hakaim, D K Sanghavi, Y Li, C Rivera, P Moreno-Franco, N L O'Keefe, N Gopal, C P Marquez, J F Huang, M Kalra, R C Shields, M Prudencio, T Gendron, R D McBane, M S Park, J B Hoyne, L Petrucelli, J C O'Horo, J F Meschia
OBJECTIVE: To assess the incidence of deep venous thrombosis (DVT) and pulmonary embolism (PE) in hospitalized patients with coronavirus disease 2019 (COVID-19) in comparison with a matched cohort with similar cardiovascular risk factors, as well as the impact of DVT/PE on hospital course. METHODS: A retrospective review of prospectively collected data on COVID-19 patients hospitalized from 03/11/2020 to 09/04/2020 was performed. Patients were randomly matched in a 1:1 ratio by age, sex, hospital of admission, smoking history, diabetes mellitus and coronary artery disease with a cohort of non-COVID-19 patients...
April 6, 2021: Journal of Vascular Surgery. Venous and Lymphatic Disorders
https://read.qxmd.com/read/33836119/the-influence-of-maternal-body-mass-index-on-interobserver-variability-of-fetal-ultrasound-biometry-and-amniotic-fluid-assessment-in-late-pregnancy
#7
J G Martins, T Kawakita, M Gurganus, D Baraki, P Jain, A T Papageorghiou, A Z Abuhamad
OBJECTIVES: Determine interobserver reproducibility of fetal ultrasound biometry and amniotic fluid assessment in the third trimester according to BMI categories. METHODS: Prospective cohort of women with singleton gestations beyond 34 weeks, recruited into 4 groups according to BMI categories: normal, overweight, obese and morbid obese. Multiple pregnancies, diabetes, growth and fetal abnormalities were excluded. Biometric and fluid measurements were obtained by two experienced physicians/sonographers, blinded for gestational age and each other's measurements...
April 9, 2021: Ultrasound in Obstetrics & Gynecology
https://read.qxmd.com/read/33835997/egg-nutritional-modulation-with-amino-acids-improved-performance-in-zebrafish-larvae
#8
Carmen Navarro-Guillén, Gabriella do Vale Pereira, André Lopes, Rita Colen, Sofia Engrola
New and more efficient methods to sustainably intensify Aquaculture production are essential to attain the seafood demand for direct human consumption in the near future. Nutrition has been identified as one strategy of early exposure that might affect animal early development and later phenotype. This strategy may have positive consequences in the modulation of fish digestive physiology, which will correlate with higher performance outputs. Thus, improving fish digestive efficiency will lead to higher productivity and lower biogenic emission from aquaculture facilities, minimising the impact on the environment while increasing the biological efficiency...
2021: PloS One
https://read.qxmd.com/read/33835863/salvage-high-intensity-focused-ultrasound-for-local-recurrence-in-the-prostatic-bed-after-prostatectomy-and-adjuvant-or-salvage-radiotherapy-preliminary-results
#9
Sarah Khedime, Albert Gelet, Olivier Rouvière, Cyril Lafon, Lionel Badet, Sébastien Crouzet, Thomas Hostiou
OBJECTIVES: To report the preliminary results of salvage high-intensity focused ultrasound for locally recurrent prostate cancer in the prostatic bed after radical prostatectomy and adjuvant or salvage radiotherapy. MATERIALS & METHODS: We retrospectively analyzed a single-center cohort of men treated with salvage high-intensity focused ultrasound for locally recurrent prostate cancer after radical prostatectomy and adjuvant or salvage radiotherapy. All patients had a combination of choline positron emission tomography, multiparametric magnetic resonance imaging, and transrectal biopsies to confirm the local recurrence...
April 9, 2021: Journal of Urology
https://read.qxmd.com/read/33835588/comparison-of-total-laparoscopic-gastropexy-with-the-ethicon-securestrap-fixation-device-versus-knotless-barbed-suture-in-dogs
#10
Luca Lacitignola, Alberto Maria Crovace, Laura Fracassi, Caterina Di Bella, Letizia Madaro, Francesco Staffieri
BACKGROUND: This study evaluated the feasibility and efficacy of a laparoscopic absorbable fixation device (Securestrap) in total laparoscopic gastropexy in dogs susceptible to gastric dilatation-volvulus (GDV) compared to laparoscopic gastropexy performed with a barbed suture. We hypothesised that both techniques provide suitable gastropexy. METHODS: The gastropexy was performed by straps (TLG-SS group, n = 6) or with a barbed suture (TLG-Vloc group, n = 6). The total surgery time, gastropexy time, the number of straps used and suture bites were recorded...
April 2021: Veterinary Record
https://read.qxmd.com/read/33835567/evaluation-of-short-term-safety-of-ultrasound-guided-foetal-fluid-sampling-in-the-dog-canis-lupus-familiaris
#11
Smadar Tal, Gila Kahila Bar-Gal, Sebastian Patrick Arlt
BACKGROUND: In humans, analysis of amniotic fluid is widely used for diagnostic and prognostic purposes. Amniocentesis has scarcely been used in veterinary medicine to date, despite a tremendous potential for clinical and research applications in dogs. Our study aimed to establish a safe method for foetal fluid sampling in female dogs. METHODS: Two transabdominal ultrasound-guided methods were assessed: the "free hand" and the needle-guided bracket sampling...
April 2021: Veterinary Record
https://read.qxmd.com/read/33835403/analysis-of-a-cohort-of-prostate-patients-treated-with-hdr-mono-brachytherapy
#12
Pavel Stavrev, Anna Balabanova, Boriana Genova, Nadejda Stavreva, Ruggero Ruggieri, Alan E Nahum, Vesselina Parvanova
The aim of this study is to perform volumetric and basic radiobiological analyses using the database on prostate patients treated by HDR brachytherapy in our institution during the period 2011-2016. Real-time ultrasound based technique was used, with Oncentra Prostate planning software. The whole period was divided into two sub-periods, according to the 100% dose per fraction, which was 10.5 Gy during the first period (2011-2012), and 11 Gy during the second period (2013-2016), for each of the three fractions...
April 9, 2021: Physical and engineering sciences in medicine
https://read.qxmd.com/read/33835332/lung-ultrasound-guided-management-to-reduce-hospitalization-in-chronic-heart-failure-a-systematic-review-and-meta-analysis
#13
REVIEW
Mohammed Mhanna, Azizullah Beran, Salik Nazir, Omar Sajdeya, Omar Srour, Hazem Ayesh, Ehab A Eltahawy
Pulmonary edema is a leading cause of hospital admissions, morbidity, and mortality in heart failure (HF) patients. A point-of-care lung ultrasound (LUS) is a useful tool to detect subclinical pulmonary edema. We performed a comprehensive literature search of multiple databases for studies that evaluated the clinical utility of LUS-guided management versus standard care for HF patients in the outpatient setting. The primary outcome of interest was HF hospitalization. The secondary outcomes were all-cause mortality, urgent visits for HF worsening, acute kidney injury (AKI), and hypokalemia rates...
April 9, 2021: Heart Failure Reviews
https://read.qxmd.com/read/33835273/one-month-outcomes-of-patients-with-sars-cov-2-infection-and-their-relationships-with-lung-ultrasound-signs
#14
Thiago Thomaz Mafort, Rogério Rufino, Claudia Henrique da Costa, Mariana Soares da Cal, Laura Braga Monnerat, Patrícia Frascari Litrento, Laura Lizeth Zuluaga Parra, Arthur de Sá Earp de Souza Marinho, Agnaldo José Lopes
BACKGROUND: The role of lung ultrasound (LUS) in evaluating the mid- and long-term prognoses of patients with COVID-19 pneumonia is not yet known. The objectives of this study were to evaluate associations between LUS signs at the time of screening and clinical outcomes 1 month after LUS and to assess LUS signs at the time of presentation with known risk factors for COVID-19 pneumonia. METHODS: This was a retrospective study of data prospectively collected 1 month after LUS screening of 447 adult patients diagnosed with COVID-19 pneumonia...
April 9, 2021: The ultrasound journal
https://read.qxmd.com/read/33835224/contrast-enhanced-ultrasonographic-findings-of-non-occlusive-mesenteric-ischemia-a-case-series
#15
Hiroshi Imamura, Jiro Hata, Tamako Takata
PURPOSE: Diagnosis of non-occlusive mesenteric ischemia (NOMI) is difficult, with diagnostic imaging being mainly performed using angiography or contrast-enhanced computed tomography. Contrast-enhanced ultrasonography (CEUS) offers an alternative diagnostic method, although diagnosis of NOMI using CEUS is not common. In this report, we review CEUS findings in a series of patients with NOMI. METHODS: The records of patients diagnosed with NOMI who underwent a surgical procedure in our institution between January 2015 and February 2020 were retrospectively assessed...
April 9, 2021: Abdominal Radiology
https://read.qxmd.com/read/33835198/wearing-compression-tights-post-exercise-enhances-recovery-hemodynamics-and-subsequent-cycling-performance
#16
Daniel C W Lee, Sinead Sheridan, Ajmol Ali, Damien Sutanto, Stephen H S Wong
PURPOSE: To investigate sports compression garment (CG)-induced recovery hemodynamics and their potential impact on subsequent cycling performance. METHODS: In a randomized crossover design, 13 physically active men (20.9 ± 1.4 years; 65.9 ± 7.8 kg; 173.3 ± 4.8 cm; peak power output 254.2 ± 27.2 W) underwent 2 experimental trials. During each experimental trial, the subjects performed 20-min fatiguing preload cycling followed by 60-min passive recovery wearing either a sports CG (28...
April 9, 2021: European Journal of Applied Physiology
https://read.qxmd.com/read/33835001/born-in-the-purple-an-exceptional-case-of-cutis-marmorata-telangiectatica-congenita
#17
Georgia Kyriakou, Efthymia Gialeli, Eleftheria Vryzaki, Sophia Georgiou
A full-term, 2-day-old female neonate with a congenital non-tender reticular patch that did not disappear with local warming was referred to our department for consultation. The family history as well as the antenatal course and delivery were unremarkable. On examination, we evidenced a fixed, marbled, bluish to deep purple lesion with a fishnet appearance extending over the right side of her body, face, and scalp. There was presence of atrophy of the involved skin, along with ulceration above the right lateral malleolus...
December 2020: Acta Dermatovenerologica Croatica: ADC
https://read.qxmd.com/read/33834999/unusual-clinical-presentation-of-giant-extragenital-condyloma
#18
Andrija Jovic, Hristina Kocic, Giovanni Damiani, Danijela Popovic, Natasa Vidovic, Tatjana Radevic, Zorana Zlatanovic, Dejan Popovic, Danica Tiodorovic
Dear editor, Condylomata accuminatum (CA) is a human papillomavirus (HPV) related sexually transmitted infection (STI), clinically characterized by solitary or even clustered dark red or pink lesions solely affecting the anogenital area (1). CA involving the extragenital, non-mucosal skin has been sporadically reported (2-4). Diagnosis of CA is usually straightforward when the lesions are located on the anogenital area. However, involvement of extragenital skin may pose a diagnostic challenge. Herein, we report a rare case of giant linear extragenital CA without coexisting genital lesions, diagnosed with a synergic intervention of dermatoscopy and clinics...
December 2020: Acta Dermatovenerologica Croatica: ADC
https://read.qxmd.com/read/33834981/-design-and-application-of-a-mobile-ultrasound-guided-puncture-vehicle
#19
Yan Xu, Jun Xu
In daily medical work, it is common to carry out bedside ultrasound guided puncture surgery, which is easy to miss and inconvenient to operate when transporting medical devices. The department of emergency of the First Hospital of Jiaxing designed a kind of mobile ultrasound guided puncture vehicle, and obtained the National Utility Model Patent of China (ZL 2020 2 0100473.X). The utility model includes a car body, a work table, an ultrasonic machine, a storage cell and a material basket. The side of the car body is provided with an opening, and both sides of the opening surface are provided with a turnover mechanism, and the rotation axis of the turnover plate is horizontally arranged...
March 2021: Zhonghua Wei Zhong Bing Ji Jiu Yi Xue
https://read.qxmd.com/read/33834975/-effect-evaluation-of-bedside-ultrasound-monitoring-of-left-ventricular-functional-parameters-combined-with-clinical-indicators-on-veno-arterial-extracorporeal-membrane-oxygenation
#20
Renfeng Yi, Juan Guo, Qing Zhou, Hongning Song, Yanxiang Zhou, Nan Jiang, Xue Yao, Ruiqiang Guo
OBJECTIVE: To explore the monitoring value of left ventricular functional parameters obtained by bedside ultrasound combined with clinically relevant indicators in patients with veno-arterial extracorporeal membrane oxygenation (VA-ECMO). METHODS: A retrospective study was conducted. A total of 24 patients receiving VA-ECMO adjuvant support in Renmin Hospital of Wuhan University from June 2018 to January 2020 were selected. The bedside ultrasound was performed on the first day of ECMO support, the day before weaning, the clinical indicators before weaning were obtained...
March 2021: Zhonghua Wei Zhong Bing Ji Jiu Yi Xue
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