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https://www.readbyqxmd.com/read/28541242/diagnostic-evaluation-of-neck-torsion-test-in-objective-examination-in-patients-with-vertigo-and-or-hearing-impairment
#1
Piotr Niewiadomski, Marzena Bielińska, Piotr Pietkiewicz, Jurek Olszewski
INTRODUCTION: HASH(0x4179eb0) INTRODUCTION: The aim of the study was to evaluate the neck torsion test in objective examinations of patients with vertigo and/or hearing loss. MATERIAL AND METHODS: The study was conducted in 100 patients, including 54 women and 46 men aged 17-79 years, who were divided into two groups: I - 50 patients, including 30 women and 20 men aged 17-79 years (mean age 49.92 years) with dizziness and/or hearing impairments, and confirmed asymmetry of intracranial vessels, II - 50 patients - control group, including 24 women and 26 men aged 20-71 years without dizziness and/or hearing disorders and without disturbance in the construction of intracranial vessels...
June 30, 2017: Otolaryngologia Polska
https://www.readbyqxmd.com/read/28539596/intravascular-ultrasound-guidance-improves-the-long-term-prognosis-in-patients-with-unprotected-left-main-coronary-artery-disease-undergoing-percutaneous-coronary-intervention
#2
Jian Tian, Changdong Guan, Wenyao Wang, Kuo Zhang, Jue Chen, Yongjian Wu, Hongbing Yan, Yanyan Zhao, Shubin Qiao, Yuejin Yang, Gary S Mintz, Bo Xu, Yida Tang
This study compared the long term outcomes in patients with unprotected left main coronary artery (LMCA) disease who underwent stenting under the guidance of intravascular ultrasound (IVUS) or conventional angiography at a large single center. The primary outcome was the composite of all-cause death and myocardial infarction (MI) at 3 years. Target vessel revascularization (TVR) at 3 years was one of the secondary outcomes. Between January 2004 and December 2011, a total of 1,899 patients who underwent IVUS-guided (n = 713, 37...
May 24, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28539300/-clinical-outcomes-of-intravascular-ultrasound-in-guiding-the-treatment-of-non-left-main-intermediate-coronary-lesions-for-patients-with-acute-coronary-syndrome
#3
Hong-Bin Liang, Qian Guo, Xin-Lu Zhang, Xue-Wei Liu, Yong-Zhen Tang, Wei-Yu Chen, Yu-Qing Hou, Jian-Cheng Xiu
OBJECTIVE: To evaluate the long-term clinical outcomes of intravascular ultrasound(IVUS) in guiding the treatment of non-left main intermediate coronary lesions for patients of acute coronary syndrome (ACS). METHODS: A total of 25 patients with intermediate coronary lesions(stenosis of 40%-70%) confirmed by coronary angiography were performed with IVUS. When MLA≥4 mm(2), we deferred the PCI treatment and performed optimal medical treatment (OMT). The patient were followed up for 12 month...
May 20, 2017: Nan Fang Yi Ke da Xue Xue Bao, Journal of Southern Medical University
https://www.readbyqxmd.com/read/28539296/-establishment-of-a-rabbit-model-of-small-diameter-vascular-graft-replacement
#4
Jia-Qing Zhang, Kun-Tang Chen, Fu-Wei Zhang, Shao-Bin Li, Yuan-Zhou Wu, Jing Feng, Wu-Jun Wang, Yu-Sheng Yan
OBJECTIVE: To establish an rabbit model that mimics the hemodynamics of the bypass graft after coronary artery bypass surgery. METHODS: Sixteen New Zealand rabbits were randomly divided into two groups for abdominal aortic artery replacement using a 3-cm-long ePTFE graft with an inner diameter 4 mm through an incision at 1/3 from the middle to the lower part of the abdomen (group A) or in the lower abdomen (group B). The general conditions of the rabbits, operative time, number of collateral vessels that needed to be ligated, rate of massive intraoperative bleeding, fluctuation of vascular anastomosis after surgery, patency rate of the graft on day 7 after the operation were compared between the two groups...
May 20, 2017: Nan Fang Yi Ke da Xue Xue Bao, Journal of Southern Medical University
https://www.readbyqxmd.com/read/28538566/predicting-thrombosis-formation-in-1-mm-diameter-arterial-anastomoses-with-transit-time-ultrasound-technology
#5
Gabrielle Shaughness, Collin Blackburn, Alberto Ballestín, Yelena Akelina, Jeffrey A Ascherman
BACKGROUND: Thrombosis is a common source of failure in anastomoses, flaps, and vascular grafts. Ensuring vessel patency is critical to the success of microvascular procedures. Any tool that can accurately predict the patency of an anastomosis intraoperatively would enable the surgeon to detect and correct flow restrictions while the patient is still in the operating room. METHODS: The authors used transit-time ultrasound technology in this pilot study to investigate whether a minimal cutoff value for quantitative postoperative blood flow (in milliliters per minute) could be established that would reliably predict sustained vessel patency at 24 hours postoperatively...
June 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28538253/immune-myopathy-with-perimysial-pathology-associated-with-interstitial-lung-disease-and-anti-ej-antibodies
#6
Patrick M Kwon, Lan Zhou, Rajeev Motiwala, Leslie D Kerr, Susan C Shin
OBJECTIVES: We report a case of immune myopathy with perimysial pathology associated with anti-glycyl-transfer RNA synthetase (anti-EJ) antibody and an excellent treatment response. METHODS: Chart review. RESULTS: A 36-year-old woman presented with 3 months of fatigue, weight loss, progressive weakness in a scapuloperoneal distribution, and dysphagia. Nerve conduction studies, electromyography, and ultrasound suggested an irritable myopathy...
June 2017: Journal of Clinical Neuromuscular Disease
https://www.readbyqxmd.com/read/28535604/use-of-transcatheter-contrast-enhanced-ultrasound-with-vessel-navigation-to-reduce-the-contrast-requirement-during-transarterial-chemoembolization-in-patients-with-renal-impairment
#7
https://www.readbyqxmd.com/read/28535431/partial-ablation-of-the-pancreas-of-sprague-dawley%C3%A2-rats-by-focused-ultrasound-reveals-no-significant-adverse-effects-on-glycometabolism-function
#8
Lan Ao, Na Hu, Hai Xia Hu, Qing Liu, Zi Hao Zhao, Long Xing Liu, Jun Ru Wu, Fa Qi Li, Liao Qiong Fang
To investigate the safety of focused ultrasound (FUS) partial ablation on the pancreas of Sprague Dawley® (SD) rats by histopathological examination of the outcome and investigation of glycometabolism function changes after local ablation. A total of 135 healthy SD rats were randomly divided into three groups (n=45 of each): FUS ½ group, FUS ¼ group, and control group. Levels of serum amylase was measured using the enzyme dynamics method, fasting blood glucose was measured by the glucose oxidase-peroxidase method, fasting serum insulin was measured by direct chemiluminescence assay, and an ELISA was used to measure fasting serum glucagon immediately after treatment, and at 2h, 3days, 1, 2, 3 and 4weeks, 3 and 6months after FUS ablation...
May 11, 2017: Ultrasonics
https://www.readbyqxmd.com/read/28528800/an-innovative-method-of-planning-and-displaying-flap-volume-in-diep-flap-breast-reconstructions
#9
S Hummelink, Arico C Verhulst, Thomas J J Maal, Yvonne L Hoogeveen, Leo J Schultze Kool, Dietmar J O Ulrich
BACKGROUND: Determining the ideal volume of the harvested flap to achieve symmetry in deep inferior epigastric artery perforator (DIEP) flap breast reconstructions is complex. With preoperative imaging techniques such as 3D stereophotogrammetry and computed tomography angiography (CTA) available nowadays, we can combine information to preoperatively plan the optimal flap volume to be harvested. In this proof-of-concept, we investigated whether projection of a virtual flap planning onto the patient's abdomen using a projection method could result in harvesting the correct flap volume...
April 23, 2017: Journal of Plastic, Reconstructive & Aesthetic Surgery: JPRAS
https://www.readbyqxmd.com/read/28525354/the-relationship-between-insulin-resistance-and-endothelial-dysfunction-in-obese-adolescents
#10
Preneet Cheema Brar, Payal Patel, Stuart Katz
BACKGROUND: Insulin resistance and endothelial dysfunction share a reciprocal relationship that links the metabolic and cardiovascular sequelae of obesity. We characterized the brachial artery reactivity testing (BART) and carotid artery-intima media thickness (CIMT) in adolescents categorized as obese insulin resistant (OIR) and obese not insulin resistant (ONIR). Lipoprotein particle (p) analysis and inflammatory cytokines in OIR and ONIR groups were also analyzed. METHODS: Obese adolescents (n=40; mean body mass index [BMI] 35...
May 18, 2017: Journal of Pediatric Endocrinology & Metabolism: JPEM
https://www.readbyqxmd.com/read/28523170/a-comparison-of-longitudinal-and-transverse-approaches-to-ultrasound-guided-axillary-vein-cannulation-by-experienced-operators
#11
Yi-Zhou He, Ming Zhong, Wei Wu, Jie-Qiong Song, Du-Ming Zhu
BACKGROUND: The axillary vein is an easily accessible vessel that can be used for ultrasound-guided central vascular access and offers an alternative to the internal jugular and subclavian veins. The objective of this study was to identify which transducer orientation, longitudinal or transverse, is better for imaging the axillary vein with ultrasound. METHODS: We analyzed 236 patients who had undergone central venous cannulation of axillary vein in this retrospective study...
April 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28516467/lymph-vessel-thrombus-detection-in-cervical-lymphedema-a-case-series
#12
Georg Kunze, Martin Staritz
Although thrombosis in the terminal part of thoracic duct has been described in patients with head and neck cancer and upper vein thrombosis, normally medical imaging is not successful in depicting such lymphatic thrombosis. This case series is about three patients with acute onset of cervical lymphedema following minor trauma or exceptional physical strain. Using high-resolution ultrasound, it was possible to detect a thrombus formation in the terminal parts of the thoracic duct or the lymph duct. Within a few weeks all patients recovered without relapse for several years...
May 18, 2017: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/28515369/effect-of-reverse-vessel-remodeling-on-regression-of-coronary-atherosclerosis-in-patients-treated-with-aggressive-lipid-and-blood-pressure-lowering-therapy%C3%A3-insight-from-million-study
#13
Tadatsugu Gamou, Kenji Sakata, Hayato Tada, Tetsuo Konno, Kenshi Hayashi, Hidekazu Ino, Masakazu Yamagishi, Masa-Aki Kawashiri
BACKGROUND: The MILLION study, a prospective randomized multicenter study, revealed that lipid and blood pressure (BP)-lowering therapy resulted in regression of coronary plaque as determined by intravascular ultrasound (IVUS). In the present study we performed additional analysis to investigate the associated factors with regression of coronary plaque.Methods and Results:We investigated serial 3D IVUS images from 68 patients in the MILLION study. Standard IVUS parameters were assessed at both baseline and follow-up (18-24 months)...
May 17, 2017: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/28514340/-the-impact-of-surgical-and-conservative-treatment-of-periodontal-disease-on-structural-and-functional-condition-of-major-blood-vessels
#14
A I Grudyanov, O N Tkacheva, A T Khatagov
The study included 55 patients (24 men and 31 women aged 30-70 years) with chronic periodontal disease and atherosclerosis of brachiocephalic arteries (BCA). Patients in group 1 received only conservative treatment for periodontal disease, while in group 2 both conservative and surgical treatment were performed. The values were evaluated at baseline and 6 months after treatment. Capillaroscopy and laser Doppler flowmetry showed an improvement in periodontal regional vascular network. The level of IL-6 decreased by 3...
2017: Stomatologii︠a︡
https://www.readbyqxmd.com/read/28511778/elevated-cranial-ultrasound-resistive-indices-are-associated-with-improved-neurodevelopmental-outcomes-one-year-after-pediatric-cardiac-surgery-a-single-center-pilot-study
#15
Christopher L Jenks, Ana Hernandez, Peter L Stavinoha, Michael C Morris, Fenghua Tian, Hanli Liu, Parvesh Garg, Joseph M Forbess, Joshua Koch
OBJECTIVE: To determine if a non-invasive, repeatable test can be used to predict neurodevelopmental outcomes in patients with congenital heart disease. METHODS: This was a prospective study of pediatric patients less than two months of age undergoing congenital heart surgery at the Children's Health Children's Medical Center at Dallas. Multichannel near-infrared spectroscopy (NIRS) was utilized during the surgery, and ultrasound (US) resistive indices (RI) of the major cranial vessels were obtained prior to surgery, immediately post-operatively, and prior to discharge...
May 13, 2017: Heart & Lung: the Journal of Critical Care
https://www.readbyqxmd.com/read/28511228/the-100-most-cited-articles-focused-on-ultrasound-imaging-a-bibliometric-analysis
#16
J Y Moon, E J Yun, D Y Yoon, C S Choi, Y L Seo, Y K Cho, K J Lim, S Baek, S J Hong, S J Yoon
Purpose The number of citations that an article has received reflects its impact on a particular research area. The aim of this study was to identify the 100 most-cited articles focused on ultrasound (US) imaging and to analyze the characteristics of these articles. Methods We determined the 100 most-cited articles on US imaging via the Web of Science database, using the search term. The following parameters were used to analyze the characteristics of the 100 most-cited articles: publication year, journal, journal impact factor, number of citations and annual citations, authors, department, institution, country, type of article, and topic...
May 16, 2017: Ultraschall in der Medizin
https://www.readbyqxmd.com/read/28511219/-innovative-ultrasound-contrast-enhanced-ultrasound-of-the-kidneys
#17
Konrad Stock, Herbert Kübler, Tobias Maurer, Daniel Weiss, Hans-Peter Weskott, Uwe Heemann
Ultrasound examination of the kidneys with grey-scale imaging and colour Doppler ultrasound is the most common renal imaging modality. A few years ago, contrast-enhanced ultrasound (CEUS) emerged as a non-invasive perfusion imaging modality to evaluate the renal vessels and microvascularisation. These contrast media contain intravenous microbubbles (sulfur hexafluoride), which have no deleterious effect on renal function. Being free of iodine, they also pose no risk for the thyroid gland. CEUS of the kidneys is mainly used for the evaluation of renal cysts and the analysis of renal lesions suspicious for malignancy...
April 2017: Aktuelle Urologie
https://www.readbyqxmd.com/read/28505064/changes-in-renal-artery-dimensions-are-associated-with-clinical-response-to-radiofrequency-renal-denervation-a-series-of-studies-using-quantitative-angiography-and-intravascular-ultrasound
#18
Thomas Weber, Jörg Kellermair, Karen T Witberg, Jurgen Ligthart, Robert J Melder, Thomas Forstner, Bernd Eber
OBJECTIVE: Renal denervation (RDN) can cause focal (notches) and global (spasms) changes in renal artery dimensions. We quantified these changes and related them to renal norepinephrin tissue content in animals and to blood pressure (BP) changes in patients. METHODS: We measured renal artery dimensions pre-RDN and post-RDN, utilizing quantitative renal angiography (QRA) in a porcine model and in a retrospective patient cohort, and intravascular ultrasound (IVUS) in a prospective patient cohort...
May 12, 2017: Journal of Hypertension
https://www.readbyqxmd.com/read/28504955/three-dimensional-intravascular-reconstruction-techniques-based-on-intravascular-ultrasound-a-technical-review
#19
Chaoyang Shi, Xiongbiao Luo, Jin Guo, Zoran Najdovski, Toshio Fukuda, Hongliang Ren
Intravascular ultrasound (IVUS) imaging provides two-dimensional (2D) real-time luminal and transmural cross-sectional images of intravascular vessels with detailed pathological information. It has offered significant advantages in terms of diagnosis and guidance and has been increasingly introduced from coronary interventions into more generalized endovascular surgery. However, IVUS itself does not provide spatial pose information for its generated images, making it difficult to construct a 3D intravascular visualization...
May 12, 2017: IEEE Journal of Biomedical and Health Informatics
https://www.readbyqxmd.com/read/28504047/intravascular-ultrasound-validation-of-contemporary-angiographic-scores-evaluating-the-severity-of-calcification-in-peripheral-arteries
#20
Da Yin, Akiko Maehara, Thomas M Shimshak, Joseph J Ricotta, Venkatesh Ramaiah, Malcolm T Foster, Thomas P Davis, Mitsuaki Matsumura, Gary S Mintz, William A Gray
PURPOSE: To validate 3 angiographic scoring systems for peripheral artery calcification using intravascular ultrasound (IVUS) as the gold standard. METHODS: The study employed preprocedure angiography and IVUS data from 47 patients (median age 72 years; 34 men) in the 55-patient JetStream G3 Calcium Study ( ClinicalTrials.gov identifier NCT01273623) to validate the 3 angiographic scoring systems [Peripheral Academic Research Consortium (PARC), Peripheral Arterial Calcium Scoring System (PACSS), and the DEFINITIVE Ca(++) trial]...
May 1, 2017: Journal of Endovascular Therapy
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