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Clinical Hemorheology and Microcirculation

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https://www.readbyqxmd.com/read/28527203/value-of-different-ultrasound-elastography-techniques-in-patients-with-venous-malformations-prior-to-and-after-sclerotherapy
#1
V I Teusch, A P Piehler, W Uller, R Müller-Wille, L Prantl, C Stroszczynski, W A Wohlgemuth, E M Jung
AIM: Comparison of different ultrasound elastography techniques for detection of changes after sclerotherapy within venous malformations. MATERIAL AND METHODS: In patients with venous malformations sonography was executed at exactly the same position prior to and after ethanol-gel sclerotherapy. Both examinations included B-Mode, vascular sonography with Color-Coded Duplex Sonography, and additional sonography with different elastography techniques (strain, qualitative and quantitative Acoustic Radiation Force Impulse (ARFI) elastography) with a linear transducer (6-9 MHz)...
May 19, 2017: Clinical Hemorheology and Microcirculation
https://www.readbyqxmd.com/read/28527202/diagnostic-accuracy-of-contrast-enhanced-ultrasound-ceus-in-monitoring-vascular-complications-in-patients-after-liver-transplantation-diagnostic-performance-compared-with-histopathological-results
#2
J Rübenthaler, K J Paprottka, E Hameister, K Hoffmann, N Joiko, M Reiser, D Rjosk-Dendorfer, D A Clevert
PURPOSE: To analyse the diagnostic performance of contrast-enhanced ultrasound (CEUS) in patients with vascular complications and transplant rejection compared to histopathological results. MATERIALS AND METHODS: Our study consisted of 45 retrospectively analysed patients that underwent liver transplantations between January 1993 and December 2015 and developed post-transplant vascular complications with transplant rejection. CEUS examinations took place between September 2006 and December 2015...
May 19, 2017: Clinical Hemorheology and Microcirculation
https://www.readbyqxmd.com/read/28527201/contrast-enhanced-ultrasound-ceus-prediction-of-focal-liver-lesions-in-patients-after-liver-transplantation-in-comparison-to-histopathology-results
#3
J Rübenthaler, K J Paprottka, E Hameister, K Hoffmann, N Joiko, M Reiser, R Rjosk-Dendorfer, D A Clevert
PURPOSE: To investigate the value of contrast-enhanced ultrasound (CEUS) in histologic prediction of focal liver lesions after liver transplantation. MATERIALS AND METHODS: 10 focal liver lesions in 10 patients after liver transplantation were scanned using CEUS and the CEUS results were compared with the histopathological results. RESULTS: Among 10 focal liver lesions, 7 proofed to be histopathological benign and 3 lesions proofed to be histopathological malignant...
May 19, 2017: Clinical Hemorheology and Microcirculation
https://www.readbyqxmd.com/read/28527200/contrast-enhanced-ultrasound-ceus-in-renal-imaging-at-an-interdisciplinary-ultrasound-centre-possibilities-of-dynamic-microvascularisation-and-perfusion
#4
Franz Josef Putz, Anna Erlmeier, Isabel Wiesinger, Niklas Verloh, Christian Stroszczynski, Bernhard Banas, Ernst Michael Jung
OBJECTIVE: To identify the indications for CEUS in renal imaging in an interdisciplinary ultrasound department. METHODS: 102 CEUS examinations of the kidney in 82 patients between September 2014 and July 2016 were analysed regarding the indication for ultrasound. CEUS was performed by one experienced sonographer agent after bolus injection of 1.0 up to 2.4 ml sulphur hexafluoride microbubbles using multifrequency probes with Contrast Harmonic imaging. RESULTS: CEUS of the kidney was performed in patients from 20 to 87 years...
May 19, 2017: Clinical Hemorheology and Microcirculation
https://www.readbyqxmd.com/read/28527198/contrast-enhanced-ultrasound-ceus-in-an-interdisciplinary-intensive-care-unit-icu-diagnostic-efficacy-in-the-assessment-of-post-operative-complications-compared-to-contrast-enhanced-computed-tomography-cect-first-results
#5
M Georgieva, L Beyer, I Goecze, C Stroszczynski, P Wiggermann, E M Jung
To evaluate the effectiveness of high-resolution contrast-enhanced ultrasound (CEUS) to diagnose early post-operative complications in an interdisciplinary intensive care unit.In 50 patients (male 32; female 18) 64 CEUS examinations were performed in an intensive care unit (ICU) setting to detect post-operative complications. Multi-frequency transducer (1-5 and/or 6-9 MHz) were used. All 64 examinations were performed by one experienced examiner. CEUS findings were compared with contrast-enhanced computed tomography (CECT) findings...
May 19, 2017: Clinical Hemorheology and Microcirculation
https://www.readbyqxmd.com/read/28527197/editorial
#6
Ernst-Michael Jung, Friedrich Jung, Hui-Xiong Xu
No abstract text is available yet for this article.
May 19, 2017: Clinical Hemorheology and Microcirculation
https://www.readbyqxmd.com/read/28527196/a-single-treatment-using-far-infrared-light-improves-blood-flow-conditions-in-arteriovenous-fistula
#7
Ursula Hadimeri, Anna Wärme, Bernd Stegmayr
No abstract text is available yet for this article.
May 19, 2017: Clinical Hemorheology and Microcirculation
https://www.readbyqxmd.com/read/28527199/the-value-of-contrast-enhanced-ultrasound-ceus-using-a-high-end-ultrasound-system-in-the-characterization-of-endoleaks-after-endovascular-aortic-repair-evar
#8
J Rübenthaler, M Reiser, V Cantisani, D Rjosk-Dendorfer, D A Clevert
PURPOSE: To evaluate the value of contrast-enhanced ultrasound (CEUS) using a high-end ultrasound system in the characterization of endoleaks after endovascular aortic repair (EVAR). MATERIAL AND METHODS: In this mono-center study, 41 patients were retrospectively analyzed after being examined using a modern high-end ultrasound system (RS80A with Prestige, Samsung Medison Co., Ltd., Seoul, Korea). The maximum diameters of the aneurysms were measured in two planes (right-left and ventral-dorsal)...
May 18, 2017: Clinical Hemorheology and Microcirculation
https://www.readbyqxmd.com/read/28527195/changes-in-sternal-perfusion-following-internal-mammary-artery-bypass-surgery
#9
Christian D Taeger, Konstantin Klein, Raymund E Horch, Michael Weyand, Justus P Beier
BACKROUND: Coronary bypass surgery using the internal mammary artery (IMA) is among the most commonly performed procedures in treatment of advanced coronary vessel disease. Further, bilateral harvesting of the IMA is associated with increased rates of sternal wound infections. OBJECTIVE: This study aimed to explore changes in sternal perfusion, following left internal mammary artery (LIMA) harvesting. METHODS: 60 patients were divided equally into intervention- and control cohorts and underwent assessment of oxygen saturation (sO2) and relative blood flow (RBF) by laser doppler flowmetry remission spectroscopy preoperatively, 24 h and 72 h postoperatively...
May 18, 2017: Clinical Hemorheology and Microcirculation
https://www.readbyqxmd.com/read/28482628/red-blood-cell-and-platelet-parameters-are%C3%A2-sepsis-predictors-in-an-escherichia-coli%C3%A2-induced-lethal-porcine-model
#10
Judit Tóth, Ildikó Beke Debreceni, Mariann Berhés, Endre Hajdú, Ádám Deák, Katalin Pető, Judit Szabó, Norbert Németh, Béla Fülesdi, János Kappelmayer
OBJECTIVE: In a fulminant porcine sepsis model, we determined the kinetics of hypoxia induced changes in relation to sepsis parameters and markers of organ damage. METHODS: Female pigs were challenged by live Escherichia coli and samples were analysed up to 4 hours. Bone marrow reactions were determined by analysing immature forms of peripheral blood cells by a hematology analyser and light microscopy. Platelet mitochondrial membrane depolarisation was determined by flow cytometry...
May 5, 2017: Clinical Hemorheology and Microcirculation
https://www.readbyqxmd.com/read/28482626/ten-minutes-of-ischemia-is-superior-to-shorter-intervals-for-the-remote-ischemic-conditioning-of-human-microcirculation
#11
J Kolbenschlag, A Sogorski, C Timmermann, K Harati, A Daigeler, T Hirsch, O Goertz, M Lehnhardt
BACKGROUND: Surgical flaps have become reliable tools in the microsurgical armamentarium, but are still faced with tissue loss due to impaired perfusion which can lead to complete flap failure. Remote Ischemic Conditioning (RIC) has been demonstrated to be an effective way to improve microcirculation in surgical flaps in humans. However, little is known about the optimal amount and length of RIC cycles. OBJECTIVE: Determination of a superior protocol for RIC of cutaneous microcirculation in humans...
May 5, 2017: Clinical Hemorheology and Microcirculation
https://www.readbyqxmd.com/read/28482622/nonlinear-dynamics-of-skin-blood-flow-response-to-mechanical-and-thermal-stresses-in-the-plantar-foot-of-diabetics-with-peripheral-neuropathy
#12
Fuyuan Liao, Yih-Kuen Jan
BACKGROUND: Diabetic foot ulcers (DFU) are a major complication in diabetics. Impaired microvascular reactivity is a major contributor to the development of DFU and has been traditionally quantified by time-domain or frequency-domain measures of skin blood flow (SBF). These measures, however, are unable to characterize the changes of nonlinear dynamics of SBF associated with diabetes and peripheral neuropathy. OBJECTIVE: The objective of this study was to investigate altered nonlinear dynamics of skin blood flow in the plantar foot of diabetics with peripheral neuropathy...
May 5, 2017: Clinical Hemorheology and Microcirculation
https://www.readbyqxmd.com/read/28482627/improvement-of-pulmonary-arterial-compliance-and-further-pulmonary-hemodynamic-effects-of-serelaxin-in%C3%A2-a%C3%A2-sheep-model
#13
René Schiffner, Juliane Reiche, Martin Schmidt, Christian Jung, Sebastian Walther, Andrey Irintchev, Sabine J Bischoff
BACKGROUND: The influence of the recombinant form of human relaxin-2 (serelaxin) on pulmonary hemodynamics under physiologic conditions have not been the subject of studies in an animal model up until now. METHODS: We therefore utilised the large animal model sheep, convenient in its similar cardiovascular physiology, to investigate said influence. All animals underwent right heart catheterization, a safe and reliable invasive procedure for the assessment of pulmonary hemodynamics, and then received either 30μg/kg serelaxin (n = 11) or saline (n = 13)...
May 2, 2017: Clinical Hemorheology and Microcirculation
https://www.readbyqxmd.com/read/28482625/transepidermal-oxygen-flux-during-arterial-occlusion-using-ratiometric-luminescence-imaging
#14
M Ranieri, S Klein, A Kotrade, C Taeger, J D Dolderer, L Prantl, S Geis
BACKGROUND: A physiological oxygen transport through a circulatory and microcirculatory system is essential for execution of cellular functions. Several pathological conditions e.g. infections, ischemia, cancer, diabetes, hypertension or chronic wounds show a change of oxygen distribution and oxygen tension in cellular microenvironment. Additionally complex operative procedures in order to reconstruct tissue defects require a reliable monitoring of microcirculation. OBJECTIVE: Target of this study was to evaluate skin oxygenation during an ischemia-reperfusion experiment using transepidermal oxygen flux imaging...
May 2, 2017: Clinical Hemorheology and Microcirculation
https://www.readbyqxmd.com/read/28482624/shear-wave-speed-imaging-of-breast-lesions-speed-within-the-lesion-fat-to-lesion-speed-ratio-or-gland-to-lesion-speed-ratio
#15
Xiao-Long Li, Wei-Wei Ren, Hui-Jun Fu, Ya-Ping He, Qiao Wang, Li-Ping Sun, Le-Hang Guo, Bo-Ji Liu, Lin Fang, Hui-Xiong Xu
OBJECTIVE: To evaluate the diagnostic performance of shear wave speed (SWS) within the lesion, fat-to-lesion speed ratio (FLR), and gland-to-lesion speed ratio (GLR) for differentiation between benign and malignant breast lesions using a novel SWS imaging technique. METHODS: From April 2016 to June 2016, 182 breast lesions were prospectively included in the study. For each lesion, SWS-lesion, FLR, and GLR were calculated. Pathological results were used as the reference standard...
May 2, 2017: Clinical Hemorheology and Microcirculation
https://www.readbyqxmd.com/read/28482623/diagnostic-value-of-contrast-enhanced-ultrasound-and-shear-wave-elastography-for%C3%A2-breast-lesions-of-sub-centimeter
#16
Li-Hua Xiang, Ming-Hua Yao, Guang Xu, Huan Pu, Hui Liu, Yan Fang, Rong Wu
BACKGROUD: Contrast-enhanced ultrasound (CEUS) and shear-wave elastography (SWE) are used for diagnostic purposes. OBJECTIVE: Investigate the diagnostic value of CEUS and SWE for breast lesions of sub-centimeter diameter. METHODS: Sixty-two patients (mean age: 49.3±12.1 years) with 66 lesions (mean diameter, 8.1±1.5 mm) were analyzed. Conventional ultrasound (US), CEUS and SWE were undertaken. Pathologic specimens were obtained through biopsy or surgery...
May 2, 2017: Clinical Hemorheology and Microcirculation
https://www.readbyqxmd.com/read/28482621/effect-of-whole-body-cryotherapy-on-the-rheological-parameters-of-blood-in-older-women-with-spondyloarthrosis
#17
Aleksandra Kulis, Anna Misiorek, Jakub Marchewka, Jacek Głodzik, Aneta Teległów, Zbigniew Dąbrowski, Anna Marchewka
BACKGROUND: Cryotherapy is a physiotherapy method used to treat back pain in older persons. OBJECTIVE: This study aims to evaluate the changes in the rheological parameters of blood in older women with spondyloarthrosis, who underwent whole-body cryotherapy. METHODS: The experimental group comprised 69 older women with lumbar spondyloarthrosis, aged between 65 and 70 years. Due to the methodology of the procedure, the experimental group was randomly divided into three groups...
May 2, 2017: Clinical Hemorheology and Microcirculation
https://www.readbyqxmd.com/read/28387663/quantitative-parameters-of-contrast-enhanced-ultrasound-in-breast-invasive-ductal-carcinoma-the-correlation-with-pathological-prognostic-factors
#18
Chen-Li Ji, Xiao-Long Li, Ya-Ping He, Dan-Dan Li, Xin-Gang Gu, Hui-Xiong Xu
PURPOSE: To investigate the correlation between quantitative parameters on contrast-enhanced ultrasound (CEUS) and pathological prognostic factors in patients with breast invasive ductal carcinomas (IDCs). MATERIALS AND METHODS: 102 patients with pathologically proven IDCs were retrospectively enrolled and all were preoperatively evaluated by CEUS. Quantitative analysis was conducted using the SonoLiver® software. On the parametric imaging, the data of rise time (RT), time to peak (TTP), mean transit time (mTT) and maximum intensity (IMAX) were recorded...
April 4, 2017: Clinical Hemorheology and Microcirculation
https://www.readbyqxmd.com/read/28372323/transepidermal-oxygen-flux-measurement-first-clinical-application-for-postoperative-wound-monitoring
#19
M Ranieri, S Klein, A Kotrade, M Nerlich, J Dolderer, L Prantl, S Geis
BACKGROUND: Measurement of skin oxygen is of great interest in diverse fields of medicine. Different pathologies, e.g. infection, ischemia cancer or chronic wounds show a characteristic oxygen distribution and skin oxygen tension. Additionally diverse operative procedures require a reliable postoperative monitoring in order to ensure success of the therapy. OBJECTIVE: Aim of this study was to assess transepidermal oxygen flux for postoperative wound monitoring after operative treatment of fractures close to the hip...
March 30, 2017: Clinical Hemorheology and Microcirculation
https://www.readbyqxmd.com/read/28372322/interactions-between-iodinated-contrast-media-and-tissue-plasminogen-activator-in-vitro-comparison-study
#20
Eszter Vörös, László Deres, Róbert Halmosi, Edit Váradi, Kálmán Tóth, István Battyáni
BACKGROUND AND PURPOSE: Iodinated contrast media (Xenetix®, Ultravist®, Omnipaque®, Visipaque® and Iomeron®) used for computed tomography (CT) may decrease fibrinolysis by recombinant tissue plasminogen activator (rt-PA). We hypothesized that receiving iodinated contrast media before rt-PA may impair thrombolysis as measured by a new model system. METHODS: Whole blood from Wistar Kyoto rats (n = 10) was obtained and allowed to form blood clots. Thrombolysis was performed by placing individually the prepared clots into 15 mL tubes and adding 5 mL saline buffer, 100μg rt-PA and a different contrast media; adjusting the quantity of iodine to either 30 mg or 60 mg...
March 30, 2017: Clinical Hemorheology and Microcirculation
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