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Vascular ultrasound

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https://www.readbyqxmd.com/read/29353268/non-invasive-diagnostic-criteria-for-hepatocellular-carcinoma-in-hepatitis-b-virus-endemic-areas-is-cirrhosis-indispensable
#1
Xiao-Wen Huang, Bing Liao, Yang Huang, Jin-Yu Liang, Quan-Yuan Shan, Shun-Li Shen, Xiao-Yan Xie, Ming-de Lu, Li-da Chen, Wei Wang
AIM: To confirm whether cirrhosis is indispensable for the non-invasive diagnostic criteria for hepatocellular carcinoma (HCC) in hepatitis B virus (HBV)-endemic areas. METHODS: Between January 2014 and December 2014, a total of 409 patients with pathologically proven focal liver lesions who underwent contrast-enhanced ultrasound (CEUS) were recruited from our institution. Clinical liver cirrhosis, HBV/HCV infection and HCC-typical vascular pattern of the targeted lesion on CEUS were evaluated...
January 19, 2018: Digestive Diseases
https://www.readbyqxmd.com/read/29352416/point-of-care-ultrasound-in-pediatric-anesthesiology-and-critical-care-medicine
#2
REVIEW
Erik Su, Nicholas Dalesio, Aliaksei Pustavoitau
Ultrasound has increasingly become a clinical asset in the hands of the anesthesiologist and intensivist who cares for children. Though many applications for ultrasound parallel adult modalities, children as always are not simply small adults and benefit from the application of ultrasound to their management in various ways. Body composition and size are important factors that affect ultrasound performance in the child, as are the pathologies that may uniquely afflict children and aspects of procedures unique to this patient population...
January 19, 2018: Canadian Journal of Anaesthesia, Journal Canadien D'anesthésie
https://www.readbyqxmd.com/read/29351462/maximal-strength-training-induced-improvements-in-forearm-work-efficiency-are-associated-with-reduced-blood-flow
#3
Ole Kristian Berg, Stian Kwak Nyberg, Tobias Midtvedt Windedal, Eivind Wang
Maximal strength training (MST) improves work efficiency. However, since blood flow is greatly dictated by muscle contractions in arms during exercise, and vascular conductance is lower, it has been indicated that arms rely more upon adapting oxygen extraction than legs in response to the enhanced work efficiency. Thus, to investigate if metabolic and vascular responses are arm-specific, we utilized Doppler-ultrasound and a catheter placed in the subclavian vein to measure blood flow and a-vO2diff during steady state work in seven young males (24{plus minus}3(SD) years) following six-weeks of handgrip MST...
December 29, 2017: American Journal of Physiology. Heart and Circulatory Physiology
https://www.readbyqxmd.com/read/29350637/clinical-utility-of-eco-color-power-doppler-ultrasonography-and-contrast-enhanced-magnetic-resonance-imaging-for-interpretation-and-quantification-of-joint-synovitis-a-review
#4
Marina Carotti, Vittoria Galeazzi, Francesca Catucci, Marcello Zappia, Francesco Arrigoni, Antonio Barile, Andrea Giovagnoni
With the introduction of new biologics such as anti-TNF-alpha antibodies and other therapies in the treatment of inflammatory arthritis, capable of halting joint destruction and functional disability, there are new pressures on diagnostic and prognostic imaging. Early demonstration of pre-erosive inflammatory features and monitoring of the long-term effects of treatment are becoming increasingly important. Early detection of synovitis offers advantages in terms of allowing early instigation of therapy and may allow the identification of those patients displaying more aggressive disease who might benefit from early intervention with expensive DMARD therapy...
January 19, 2018: Acta Bio-medica: Atenei Parmensis
https://www.readbyqxmd.com/read/29350311/shear-wave-elastography-and-afirma%C3%A2-gene-expression-classifier-in-thyroid-nodules-with-indeterminate-cytology-a-comparison-study
#5
Ghobad Azizi, James M Keller, Michelle L Mayo, Kelé Piper, David Puett, Karly M Earp, Carl D Malchoff
PURPOSE: To compare shear wave elastography (SWE) and Afirma™ gene expression classifier (GEC) for diagnosis of malignancy in thyroid nodules (TNs) with Bethesda Classification (BC) III or IV indeterminate cytology. METHODS: This preliminary single-center prospective study was approved by the Institutional Review Board. We evaluated 151 consented patients with 151 indeterminate TNs (123 BC III, 28 BC IV) on fine-needle aspiration biopsy (FNAB). B-mode ultrasound, vascularity, and SWE were performed prior to FNAB...
January 19, 2018: Endocrine
https://www.readbyqxmd.com/read/29349404/external-jugular-vein-thrombosis-secondary-to-deep-tissue-neck%C3%A2-massage
#6
Sneha Raju, John Byrne
An 85-year-old man presented with an acute asymptomatic lateral neck mass in the context of deep tissue neck massages during the past year. He was referred to vascular surgery after an ultrasound examination of the neck revealed a thrombus in the external jugular vein. His past medical history and comorbidities were noncontributory. A multidisciplinary team of vascular surgeons and hematologists did not recommend any anticoagulation, given that the patient did not have any risk factors for thrombosis as well as normal D-dimer levels...
September 2017: Journal of Vascular Surgery Cases and Innovative Techniques
https://www.readbyqxmd.com/read/29345146/quantitative-contrast-enhanced-ultrasound-for-monitoring-vedolizumab-therapy-in-inflammatory-bowel-disease-patients-a-pilot-study
#7
Ruediger S Goertz, Daniel Klett, Dane Wildner, Raja Atreya, Markus F Neurath, Deike Strobel
Background Microvascularization of the bowel wall can be visualized and quantified non-invasively by software-assisted analysis of derived time-intensity curves. Purpose To perform software-based quantification of bowel wall perfusion using quantitative contrast-enhanced ultrasound (CEUS) according to clinical response in patients with inflammatory bowel disease treated with vedolizumab. Material and Methods In a prospective study, in 18 out of 34 patients, high-frequency ultrasound of bowel wall thickness using color Doppler flow combined with CEUS was performed at baseline and after 14 weeks of treatment with vedolizumab...
January 1, 2018: Acta Radiologica
https://www.readbyqxmd.com/read/29344976/role-of-elastography-in-axillary-examination-of-patients-with-breast-cancer
#8
Wanying Chang, Wanru Jia, Junni Shi, Congcong Yuan, Yuzhu Zhang, Man Chen
OBJECTIVES: This study aimed at exploring the role of ultrasound (US) elastography in the diagnosis of the axillary lymph node status in patients with breast cancer. METHODS: We analyzed 140 visible axillary lymph nodes on conventional US imaging. All of them underwent elastography. Five conventional US features were adopted to assess axillary lymph nodes: longitudinal diameter, longitudinal-to-transverse diameter ratio, cortical thickness, status of the hilum, and vascular pattern...
January 18, 2018: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/29336785/the-erector-spinae-plane-block-in-4-cases-of-video-assisted-thoracic-surgery
#9
J C Luis-Navarro, M Seda-Guzmán, C Luis-Moreno, J L López-Romero
Multimodal anaesthesia, combining epidural catheter and general anaesthesia, is a common technique in thoracic surgery, however, epidural catheter placement is not always possible. Recently, erector spinae plane block has been described, which provides analgesia like that of the epidural block, although unilateral, and which has been used in various procedures at thoracic level. At present, there are no studies comparing the efficacy or safety of this block with those commonly used in thoracic surgery. However, its safety profile and contraindications seem different from those of the epidural catheter, since its placement is done under ultrasound view, the needle introduction is done in plane and the ultrasound target, the transverse process, is easily identifiable and is relatively remote from major neural or vascular structures and the pleura...
January 11, 2018: Revista Española de Anestesiología y Reanimación
https://www.readbyqxmd.com/read/29336616/study-of-the-osteoprotegerin-receptor-activator-of-nuclear-factor-kb-ligand-system-association-with-inflammation-and-atherosclerosis-in-systemic-sclerosis
#10
Rania M Gamal, Walid M Gamal, Abeer M Ghandour, Hanan Sayed M Abozaid, Mona Embarek Mohamed, Yasser Emad, Ahmed Abdel Galeel
OBJECTIVE: we aimed to study systemic sclerosis patients in order to assess osteoprotegerin/Receptor activator of nuclear factor-kB ligand (OPG/RANKL) system and find the relation of these biomarkers with the clinical features of the disease, the carotid intima thickness, markers of inflammation, lipid profile, and other laboratory characteristics. METHODS: both the level of (RANKL), (OPG) in sera of participants, in 30 (SSc) patients and the atherosclerotic changes affecting the common carotid artery were measured and, were compared to 30 healthy controls matched for age and sex...
January 16, 2018: Immunological Investigations
https://www.readbyqxmd.com/read/29334176/the-effect-of-22-5-khz-low-frequency-contact-ultrasound-debridement-lfcud-on-lower-extremity-wound-healing-for-a-vascular-surgery-population-a-randomised-controlled-trial
#11
Christine Anne Murphy, Pamela Houghton, Tim Brandys, Gregory Rose, Dianne Bryant
The aim of this study was to compare changes in wound size and appearance and health complication rates in patients with vasculopathy and lower-extremity wounds treated with or without low-frequency contact ultrasound debridement (LFCUD) This study was a randomised controlled trial. The study was conducted in a vascular surgery service, including outpatient wound clinic and inpatient ward, in a tertiary care academic centre. In total, 70 patients with vasculopathy and lower-extremity wounds of mixed aetiology were enrolled in the trial; 68 completed the study...
January 15, 2018: International Wound Journal
https://www.readbyqxmd.com/read/29333796/upper-extremity-deep-vein-thrombosis-symptoms-diagnosis-and-treatment
#12
REVIEW
Jaber Mustafa, Ilan Asher, Zev Sthoeger
Upper extremity deep vein thrombosis (UEDVT) is defined as thrombosis of the deep venous system (subclavian, axillary, brachial, ulnar, and radial veins), which drains the upper extremities. It can be caused by thoracic outlet anatomic obstruction, such as Paget-Schroetter syndrome, (primary) or by central intravenous catheters (secondary). UEDVT may be asymptomatic or present with acute severe pain and arm swelling. Clinical suspicion should be confirmed by diagnostic imaging procedures such as duplex ultrasound, computed tomography scan, or magnetic resonance imaging...
January 2018: Israel Medical Association Journal: IMAJ
https://www.readbyqxmd.com/read/29329991/dynamic-contrast-enhanced-eus-for-quantification-of-tumor-perfusion-in-colonic-cancer-a-prospective-cohort-study
#13
Marie Louise Malmstrøm, Adrian Săftoiu, Lene B Riis, Hazem Hassan, Tobias W Klausen, Mikkel S Rahbek, Ismail Gögenur, Peter Vilmann
BACKGROUND AND AIMS: Dynamic contrast enhanced endoscopic ultrasound (CE-EUS) for quantification of perfusion in colonic tumors has not previously been reported in the literature. The aim of the study was to investigate correlations between perfusion parameters and vessel density assessed by immunohistochemical staining with antibodies toward CD31 and CD105. METHODS: We conducted a prospective clinical study. In total, 28 patients with left-sided colonic adenocarcinoma, underwent CE-EUS and left-sided hemicolectomy within 2 weeks...
January 9, 2018: Gastrointestinal Endoscopy
https://www.readbyqxmd.com/read/29325584/adenomatoid-tumor-of-the-testis-mimicking-malignant-testicular-cancer-on-multiparametric-ultrasound
#14
Renate Pichler, Gennadi Tulchiner, Fabian Steinkohl, Afschin Soleiman, Wolfgang Horninger, Isabel Maria Heidegger, Friedrich Aigner
BACKGROUND: Adenomatoid tumor is one of the most common histological subtypes of paratesticular cancer arising from the epididymis. In very rare cases, these tumors appear as intratesticular lesions originating in the tunica albuginea, representing a diagnostic challenge. CASE PRESENTATION: We present a case of a 51-year-old man with a small (0.9 cm) hyperechoic lesion of the left testicle mimicking testicular cancer on multiparametric ultrasound. The lesion was localized in the peripheral zone, confirming vascularization and increased stiffness on contrast-enhanced ultrasound and real-time elastography...
January 11, 2018: European Journal of Medical Research
https://www.readbyqxmd.com/read/29323077/epidermoid-cyst-of-the-renal-pelvis-masquerading-as-malignancy
#15
Dinesh Pradhan, Gabriela Quiroga-Garza, Ronald Hrebinko, Rajiv Dhir, Anil V Parwani
Epidermoid cyst of the renal pelvis is exceptionally rare. The histogenetic mechanism has not been well characterized. Herein, we report a case of intrarenal epidermoid cyst in a 62-year-old woman who had undergone left nephrolithotomy for a staghorn calculus. She was being followed up for bilateral renal cysts when a complex mass was noted arising from the lower pole of the left kidney. Renal ultrasound showed a small left kidney with a solid vascular echogenic mass. A laparoscopic radical nephrectomy was performed...
October 2017: Indian Journal of Pathology & Microbiology
https://www.readbyqxmd.com/read/29321842/splenic-pedicle-control-during-laparoscopic-de-capsulation-of-a-giant-splenic-cyst
#16
Osama Elhardello, Basil J Ammori
Splenic cysts are a rare entity in the Western population and are either true cysts (primary, 25%) or pseudocysts (secondary, 75%) complicating trauma, haemorrhage or infarction. Congenital or simple splenic cysts are the commonest primary cysts and surgery is recommended for cysts larger than 5 cm as these are prone to infection, bleeding or rupture and for symptomatic or complicated cysts. Splenic preservation techniques using the laparoscopic approach are the most prevalent. We present a case of a giant painful simple splenic cyst treated with laparoscopic de-capsulation with application of a new technique for achieving vascular control, whereby control of the splenic pedicle was achieved using a Nylon tape...
January 2018: Journal of Surgical Case Reports
https://www.readbyqxmd.com/read/29319774/renal-artery-pseudoaneurysm
#17
Luiz Inácio Roman, Cauana Fabrício Efel, Victória Teles França, Carolina Meert Merten, Claus Dieter Dummer
The renal artery pseudoaneurysm embody a rare vascular complication coming of percutaneous procedures, renal biopsy, nephrectomy, penetrating traumas and more rarely blunt traumas. The clinical can be vary according the patient, the haematuria is the symptom more commom. Is necessary a high level of clinical suspicion for your diagnosis, this can be elucidated by through complementary exams as the eco-color Doppler and the computed tomography scan (CT). This report is a case of a patient submitted a right percutaneous renal biopsy and that, after the procedure started with macroscopic haematuria, urinary tenesmus and hypogastric pain...
October 2017: Jornal Brasileiro de Nefrologia: ʹorgão Oficial de Sociedades Brasileira e Latino-Americana de Nefrologia
https://www.readbyqxmd.com/read/29318729/validation-of-modelflow-estimates-of-cardiac-output-in-hemodialysis-patients
#18
Clare MacEwen, Sheera Sutherland, Jonathan Daly, Christopher Pugh, Lionel Tarassenko
Volume-clamp technology (e.g. Finometer) has become a popular method of collecting continuous, non-invasive, hemodynamic information during hemodialysis. There is minimal data validating the technique in this patient group. A gold standard cardiac output measurement can be obtained using ultrasound dilution in patients with arterio-venous fistulae. Continuous cardiac output was measured in 124 hemodialysis sessions in 27 patients using a volume-clamp device (Finometer PRO). Ultrasound dilution measurement was first taken at baseline (Transonic HD03), then used to calibrate the Finometer...
January 10, 2018: Therapeutic Apheresis and Dialysis
https://www.readbyqxmd.com/read/29316031/ultrasonographic-assessment-of-male-breast-diseases
#19
Xueyu Rong, Qiang Zhu, Wenxiu Jia, Teng Ma, Xixi Wang, Ning Guo, Hongtao Ji
Although rare and accounting for less than 1% of all breast cancers, the incidence of breast cancer in men has increased by 26% over the past few decades. Very little has been reported on the sonographic appearance of benign and malignant male breast conditions. The aim of this study was to describe the ultrasonographic features of male breast disease and the value of ultrasound in the evaluation of male breast disease. Between December 2006 and October 2014, ultrasound examinations were performed in 560 male patients presenting with enlargement of, pain in, and/or a lump in the breast...
January 8, 2018: Breast Journal
https://www.readbyqxmd.com/read/29315921/influence-of-physical-inactivity-on-arterial-compliance-during-a-glucose-challenge
#20
Daniel P Credeur, Leryn J Reynolds, Seth W Holwerda, Jennifer R Vranish, Benjamin E Young, Jing Wang, John P Thyfault, Paul J Fadel
Acute hyperglycemia has been shown to augment indices of arterial stiffness in patients with insulin resistance and other co-morbidities, however, conflicting results exist in healthy young individuals. We examined if acute hyperglycemia following an oral glucose tolerance test (OGTT) increases arterial stiffness in healthy active men before, and then after reduced ambulatory physical activity to decrease insulin sensitivity. High-resolution arterial diameter tracings acquired from Doppler-ultrasound allowed the obtainment of an arterial blood pressure (BP) waveform from the diameter tracing within a cardiac cycle...
January 9, 2018: Experimental Physiology
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