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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
#1
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
#2
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
#3
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/28527199/the-value-of-contrast-enhanced-ultrasound-ceus-using-a-high-end-ultrasound-system-in-the-characterization-of-endoleaks-after-endovascular-aortic-repair-evar
#4
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/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/28522908/detection-and-characterization-of-murine-colitis-and-carcinogenesis-by-molecularly-targeted-contrast-enhanced-ultrasound
#6
Markus Brückner, Jan Heidemann, Tobias M Nowacki, Friederike Cordes, Jörg Stypmann, Philipp Lenz, Faekah Gohar, Andreas Lügering, Dominik Bettenworth
AIM: To study mucosal addressin cellular adhesion molecule-1 (MAdCAM-1) and vascular endothelial growth factor (VEGF)-targeted contrast enhanced ultrasound (CEUS) for the assessment of murine colitis and carcinogenesis. METHODS: C57BL/6 mice were challenged with 3% dextran sodium-sulfate (DSS) for three, six or nine days to study the development of acute colitis. Ultrasound was performed with and without the addition of unspecific contrast agents. MAdCAM-1-targeted contrast agent was used to detect and quantify MAdCAM-1 expression...
April 28, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28522149/measuring-absolute-blood-perfusion-in-mice-using-dynamic-contrast-enhanced-ultrasound
#7
Abbas Shirinifard, Suresh Thiagarajan, Melissa D Johnson, Christopher Calabrese, András Sablauer
We investigated the feasibility of estimating absolute tissue blood perfusion using dynamic contrast-enhanced ultrasound (CEUS) imaging in mice. We developed a novel method of microbubble administration and a model-free approach to estimate absolute kidney perfusion, and explored the kidney as a reference organ to estimate absolute perfusion of a neuroblastoma tumor. We performed CEUS on the kidneys of CD1 nude mice using the VisualSonics VEVO 2100 imaging system. We estimated individual kidney blood perfusion using the burst-replenishment (BR) technique...
May 15, 2017: Ultrasound in Medicine & Biology
https://www.readbyqxmd.com/read/28511226/contrast-enhanced-ultrasound-in-the-follow-up-of%C3%A2-endoleaks-after-endovascular-aortic-repair-evar
#8
Johannes Rübenthaler, Hanna Zimmermann, Marco Armbruster, Katharina Müller-Peltzer, Florian Bogner, Maximilian Reiser, Dirk-André Clevert
Endovascular aortic repair (EVAR) has become established in the treatment of abdominal aortic aneurysms and shows potential benefits such as a low perioperative morbidity and a short hospitalization duration. The follow-up after EVAR primarily consists of lifelong postinterventional imaging of the aneurysm size in order to detect complications such as endoleaks or stent dislocation. Computed tomography angiography, an imaging modality that uses ionizing radiation and that relies on a contrast medium which is dependent on thyroid and renal function, is widely used for follow-up...
May 16, 2017: Ultraschall in der Medizin
https://www.readbyqxmd.com/read/28511219/-innovative-ultrasound-contrast-enhanced-ultrasound-of-the-kidneys
#9
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/28502665/can-the-contrast-enhanced-ultrasound-washout-rate-be-used-to-predict-microvascular-invasion-in-hepatocellular-carcinoma
#10
Wei Zhu, Xiachuan Qing, Feng Yan, Yan Luo, Yongzhong Li, Xiang Zhou
The objective of this study was to investigate use of the washout rate of hepatocellular carcinoma on contrast-enhanced ultrasound (CEUS) for pre-operative determination of the presence of microvascular invasion. The study included 271 patients who underwent liver resection for hepatocellular carcinoma between April 2008 and December 2012, and were examined with contrast-enhanced ultrasound before surgery. Patients were followed up at 3-mo intervals for 3 y. Four washout patterns were classified according to the start time of washout: rapid, portal, delayed and slow...
May 11, 2017: Ultrasound in Medicine & Biology
https://www.readbyqxmd.com/read/28500486/tips-and-tricks-for-a-safe-and-effective-image-guided-percutaneous-renal-tumour-ablation
#11
REVIEW
Giovanni Mauri, L Nicosia, G M Varano, G Bonomo, P Della Vigna, L Monfardini, F Orsi
Image-guide thermal ablations are nowadays increasingly used to provide a minimally invasive treatment to patients with renal tumours, with reported good clinical results and low complications rate. Different ablative techniques can be applied, each with some advantages and disadvantages according to the clinical situation. Moreover, percutaneous ablation of renal tumours might be complex in cases where there is limited access for image guidance or a close proximity to critical structures, which can be unintentionally injured during treatment...
May 12, 2017: Insights Into Imaging
https://www.readbyqxmd.com/read/28497069/characterization-of-focal-liver-lesions-indistinctive-on-b-mode-ultrasound-benefits-of-contrast-enhanced-ultrasound
#12
Yi Dong, Feng Mao, Jiaying Cao, Peili Fan, Wen-Ping Wang
Aim. The aim of this prospective study was to evaluate the additional value of contrast-enhanced ultrasound (CEUS) in identifying and characterizing of focal liver lesions (FLLs) that are indistinctive on B mode ultrasound (BMUS). Methods. The study focused on 70 consecutive patients (male 46, female 24; mean age, 53.1 years ± 10). All lesions were detected by MRI but could not be clearly visualized by BMUS. CEUS was performed by injected SonoVue® (Bracco Imaging Spa, Milan, Italy) as a quick bolus into the antecubital vein...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28496092/usefulness-of-contrast-enhanced-ultrasonography-for-predicting-esophageal-varices-in-patients-with-hepatitis-b-virus-hbv-related-cirrhosis
#13
Jun Li, Jin-Chun Feng, Xin-Yu Peng, Xiang-Wei Wu, Ting-Ting Du, Jia-Jia Wang, Shu-Xin Tian, Gui-Lin Lu
BACKGROUND The aim of this study was to investigate the usefulness of contrast-enhanced ultrasonography (CEUS) in predicting of esophageal varices (EV) and assessing high-risk EV in patients with hepatitis B virus (HBV)-related cirrhosis. MATERIAL AND METHODS Patients with HBV-related cirrhosis who had undergone endoscopy were prospectively recruited. Hepatic dynamic CEUS was performed. Regions of interest (ROI) were drawn on the hepatic artery, hepatic vein, portal vein, and liver parenchyma to measure the corresponding features, such as arrival times...
May 12, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28489576/intraoperative-contrast-enhanced-ultrasonography-for-microcirculatory-evaluation-in-rhesus-monkey-with-spinal-cord-injury
#14
Lin Huang, Keng Chen, Fu-Chao Chen, Hui-Yong Shen, Ji-Chao Ye, Zhao-Peng Cai, Xi Lin
This study tried to quantify spinal cord perfusion by using contrast-enhanced ultrasound (CEUS) in rhesus monkey models with acute spinal cord injury. Acute spinal cord perfusion after injury was detected by CEUS, coupling with conventional ultrasound (US) and Color Doppler US (CDFI). Time-intensity curves and perfusion parameters were obtained by autotracking contrast quantification (ACQ) software in the epicenter and adjacent regions of injury, respectively. Neurological and histological examinations were performed to confirm the severity of injury...
April 19, 2017: Oncotarget
https://www.readbyqxmd.com/read/28489274/ultrasound-imaging-based-on-molecular-targeting-for-quantitative-evaluation-of-hepatic-ischemia-reperfusion-injury
#15
Chen Qiu, Tinghui Yin, Yingcai Zhang, Yufan Lian, Yujia You, Kun Wang, Rongqin Zheng, Xintao Shuai
The present study aimed to quantitatively diagnose and monitor the therapy response of hepatic ischemia reperfusion injury (IRI) with targeted ultrasound (US) imaging. Targeted microbubbles (MBs ) were fabricated, and the binding of ICAM-1 antibodies to MBs was observed. To establish a quantitative method based on targeted US imaging, contrast-enhanced ultrasound (CEUS) was applied on IRI rats. After andrographolide treatment, the IRI rats were subjected to the quantitative targeted US imaging for a therapeutic effect...
May 10, 2017: American Journal of Transplantation
https://www.readbyqxmd.com/read/28483014/value-of-contrast-enhanced-ultrasound-and-conventional-ultrasound-in-the-diagnosis-of-papillary-thyroid-carcinoma-with-cervical-lymph-node-metastases
#16
Yan Zhang, Yukun Luo, Mingbo Zhang, Ming Yang, Ying Zhang, Junlai Li, Jie Tang
Objective To compare the ultrasound features of papillary thyroid carcinoma with or without cervical lymph node metastasis (LNM). Methods Patients suspected of thyroid cancer underwent the conventional ultrasound and contrast-enhanced ultrasound (CEUS) examinations. Patients' age,sex,and ultrasound characteristics of lesions were recorded. With the surgical pathology as the golden standard,the ultrasound features were compared between the cervical LNM group and non-LNM group. Results Of 144 patients,51 had cervical LNM and 93 did not...
April 20, 2017: Zhongguo Yi Xue Ke Xue Yuan Xue Bao. Acta Academiae Medicinae Sinicae
https://www.readbyqxmd.com/read/28482623/diagnostic-value-of-contrast-enhanced-ultrasound-and-shear-wave-elastography-for%C3%A2-breast-lesions-of-sub-centimeter
#17
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/28479464/embo-evar-a-technique-to-prevent-type-ii-endoleak-a-single-centre-experience
#18
Massimiliano Natrella, Federico Navarretta, Alessandro Rapellino, Gianluca Job, Massimo Cristoferi, Matteo Castagnola, Gianmarco Lunardi, Luca Duc, Gianluca Fanelli, Andrea Peruzzo Cornetto, Teodoro Meloni, Flavio Peinetti
OBJECTIVES: To evaluate the role of intraprocedural aneurysm sac embolisation (embo-EVAR) during endovascular abdominal aneurysm repair (EVAR) using coils and fibrin glue for preventing type II endoleak (EII). MATERIALS AND METHODS: A retrospective clinical case analysis of 72 patients who underwent EVAR during the period 2011-2014. Two groups were compared at 6 and 12 months follow-up with MDCT scan and Contrast-enhanced ultrasound (CEUS) imaging: consecutively, 36 patients (group A) treated with classic EVAR and 36 patients (group B) treated with embo-EVAR...
May 4, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28469180/utility-of-quantitative-contrast-enhanced-ultrasound-for-the-prediction-of-extracapsular-extension-in-papillary-thyroid-carcinoma
#19
Yi Liu, Hua Liu, Chang-Lin Qian, Mei-Sui Lin, Feng-Hua Li
The aim of this study was to find an accurate method for the detection of extracapsular extension (ECE) in papillary thyroid carcinoma (PTC). A total of 102 patients with 109 PTC nodules were retrospectively enrolled. Contrast-enhanced ultrasound (CEUS) characteristics were evaluated. The diagnostic efficacy of quantitative CEUS and tumor size was analyzed. The qualitative CEUS features did not differ significantly between the ECE and non-ECE groups (P > 0.05). All of the quantitative CEUS parameters with the exception of peak intensity and tumor size were found to differ significantly between the ECE and non-ECE groups (P < 0...
May 3, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28464984/contrast-enhanced-ultrasound-in-the-diagnosis-of-orbital-space-occupying-lesions
#20
L Yan, G He, X Zhou, Y Zheng, Y Zhu, J Yang, M Zhang, Y Zhou
AIM: To summarise the sonographic findings and assess the feasibility of contrast-enhanced ultrasound (CEUS) as an imaging method for the diagnosis of orbital space-occupying lesions. MATERIALS AND METHODS: This was a prospective study of 53 patients who underwent orbital ultrasound at Xijing Hospital. Two-dimensional ultrasound, colour Doppler flow imaging (CDFI), and CEUS imaging were obtained and compared in patients with orbital haemangioma, pseudotumour, melanoma of the choroid, and retinoblastoma...
April 29, 2017: Clinical Radiology
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