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https://www.readbyqxmd.com/read/27916971/diagnostic-accuracy-of-contrast-enhanced-ultrasound-enhancement-patterns-for-thyroid-nodules
#1
Yan Zhang, Yu-Kun Luo, Ming-Bo Zhang, Jie Li, Junlai Li, Jie Tang
BACKGROUND The aim of this study was to investigate the accuracy of contrast-enhanced ultrasound (CEUS) enhancement patterns in the assessment of thyroid nodules. MATERIAL AND METHODS A total of 158 patients with suspected thyroid cancer underwent conventional ultrasound (US) and CEUS examinations. The contrast enhancement patterns of the lesions, including the peripheries of the lesions, were assessed by CEUS scans. The relationship between the size of the lesions and the degree of enhancement was also studied...
December 5, 2016: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/27914180/burned-out-testis-tumors-in-asymptomatic-infertile-men-multiparametric-sonography-and-mri-findings
#2
Laurence Rocher, Ludivine Glas, Marie France Bellin, Sophie Ferlicot, Vincent Izard, Gerard Benoit, Laurence Albiges, Karim Fizazi, Jean-Michel Correas
Multiparametric testicular ultrasound and magnetic resonance imaging (MRI) findings were analyzed in a series of 10 infertile asymptomatic men presenting with pathologically confirmed burned-out testicular tumors. Color/power Doppler ultrasound (CDUS), shear wave elastography (SWE), contrast-enhanced ultrasonography (CEUS), and MRI were performed on 10, 5, 6, and 7 patients, respectively. All lesions appeared as a hypoechoic and hypovascular nodular area at CDUS, SWE, CEUS CDUS, and CEUS (if performed). Shear wave elastography showed a stiffer nodular area compared with the surrounding/contralateral tissues (13 versus 2 kPa); MRI revealed a well-delineated nodular area in hypointense signal on T2, a high apparent diffusion coefficient value, and a lack of enhancement...
December 3, 2016: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/27911263/contrast-enhanced-us-guided-percutaneous-biopsy-of-anterior-mediastinal-lesions
#3
Dong Yi, Mao Feng, Wang Wen Ping, Ji Zheng Biao, Pei Li Fan
PURPOSE: We aimed to explore the value of contrast-enhanced ultrasonography (CEUS) in guidance of percutaneous biopsy of anterior mediastinal lesions. METHODS: Ninety patients with solitary anterior mediastinal lesions (55 males, 35 females; mean age, 46±4 years) were included. Patients were randomly divided into CEUS group (n=45) and conventional ultrasonography (US) group (n=45). Real-time US-guided core needle (16 G) percutaneous biopsies were performed in all lesions...
December 2, 2016: Diagnostic and Interventional Radiology: Official Journal of the Turkish Society of Radiology
https://www.readbyqxmd.com/read/27904441/dynamic-contrast-enhanced-ultrasound-of-the-bowel-wall-with-quantitative-assessment-of-crohn-s-disease-activity-in-childhood
#4
Damjana Kljucevsek, Dubravka Vidmar, Darja Urlep, Rok Dezman
BACKGROUND: Contrast-enhanced ultrasound (CEUS) has become an established non-invasive, patient-friendly imaging technique which improves the characterization of lesions. In addition, dynamic contrast-enhanced ultrasound (DCE-US) provides valuable information concerning perfusion of examined organs. This review addresses current applications of CEUS in children, focused on DCE-US of the bowel wall in patients with Crohn disease, which enables realtime assessment of the bowel wall vascularity with semi-quantitative and quantitative assessment of disease activity and response to medical treatment...
December 1, 2016: Radiology and Oncology
https://www.readbyqxmd.com/read/27903081/percutaneous-microwave-ablation-of-renal-cell-carcinoma-is-safe-in-patients-with-renal-dysfunction
#5
Yan Lin, Ping Liang, Xiao-Ling Yu, Jie Yu, Zhi-Gang Cheng, Zhi-Yu Han, Fangyi Liu
OBJECTIVES: To present the clinical effect of microwave ablation(MWA) on renal cell carcinoma(RCC) of the patients with renal dysfunction, mainly focusing on the extent of renal tumor control and damage to the residual kidney function. METHODS AND MATERIALS: From 2006 to 2014, 19 tumors of 18 patients with renal dysfunction underwent percutaneous ultrasound-guided MWA in our institution. The tumor diameters range from 1.9 to 5.0cm. The serum creatinine and urea levels of each patient pre-MWA, 1 day after MWA and the most recent occasion on record at our institution were collected...
November 30, 2016: International Journal of Hyperthermia
https://www.readbyqxmd.com/read/27895728/quantitative-contrast-enhanced-ultrasonography-for-the-differential-diagnosis-of-endometrial-hyperplasia-and-endometrial-neoplasms
#6
Ying Liu, Yi Xu, Wen Cheng, Xinghan Liu
The present study aimed to investigate the feasibility of applying contrast-enhanced ultrasonography (CEUS) imaging technology for distinguishing between benign and malignant endometrial lesions, and to screen markers that could be correlated with the pathological results. In this study, endometrial diseases were diagnosed by biopsy under hysteroscopy and CEUS examinations. The intensity and time parameters of the time-intensity curve (TIC) were analyzed. The mean arrival time (AT), time-to-peak (TTP), rise time (RT), washout half-time and clearance half-time of malignant lesions were shorter than those of benign lesions (P<0...
November 2016: Oncology Letters
https://www.readbyqxmd.com/read/27893912/contact-hours-versus-ceus-what-s-the-difference
#7
Debra P Hastings
The terms contact hour and continuing education unit (CEU) are often used interchangeably. However, they are significantly different. The importance of correct terminology is highlighted in this article. J Contin Educ Nurs. 2016;47(12):529-530.
December 1, 2016: Journal of Continuing Education in Nursing
https://www.readbyqxmd.com/read/27890423/hepatic-epithelioid-angiomyolipoma-clinical-features-and-imaging-findings-of-contrast-enhanced-ultrasound-and-ct
#8
Y Tan, X Xie, Y Lin, T Huang, G Huang
AIM: To evaluate the clinical features and imaging findings of epithelioid angiomyolipoma (EAML) on contrast-enhanced ultrasound (CEUS) and contrast-enhanced computed tomography (CECT). MATERIALS AND METHODS: During January 2006 to November 2015, six patients with histopathologically proven hepatic EAML were evaluated using both CECT and ultrasonography. Six patients underwent CEUS and four patients had CECT images. Patients' demographics, clinical presentations, laboratory test results, and imaging appearances were collected and analysed...
November 24, 2016: Clinical Radiology
https://www.readbyqxmd.com/read/27887203/contrast-enhanced-ultrasound-features-of-hepatic-cystadenoma-and-hepatic-cystadenocarcinoma
#9
Yi Dong, Wen-Ping Wang, Feng Mao, Mei Fan, Andre Ignee, Carla Serra, Zeno Sparchez, Ioan Sporea, Barbara Braden, Christoph F Dietrich
OBJECTIVE: Hepatic (biliary) cystic tumor (HBCT) is a rare focal cystic liver lesion, which has been rarely described in the literature. In our current multicenter, retrospective study, we aimed to analyze contrast enhanced ultrasound (CEUS) features and its diagnostic performance in histologically proved HBCT. MATERIAL AND METHODS: Twenty-three patients with single HBCT were retrospectively analyzed. Histologically, 17 (73.9%) were benign hepatic (biliary) cystadenoma (HBCA), 6 (26...
November 25, 2016: Scandinavian Journal of Gastroenterology
https://www.readbyqxmd.com/read/27886003/mri-and-contrast-enhanced-ultrasound-ceus-image-fusion-of-renal-cysts
#10
J Rübenthaler, K J Paprottka, J Marcon, M Reiser, D A Clevert
Ultrasound is a common and established imaging method for the initial characterization of renal lesions. The widespread used Bosniak classification (I-IV) classifies renal lesions in five individual groups using contrast-enhanced computer tomography (CE-CT), magnetic resonance imaging (MRI) and/or contrast-enhanced ultrasound (CEUS) imaging criteria. For complex pathologies, CEUS/MRI image fusion is a novel imaging technique for the differentiation of benign and malignant renal lesions. Compared to CE-CT and MRI alone, ultrasound image fusion offers the additional possibility of being a real-time imaging technique that can be used together with other cross-sectional imaging techniques...
November 23, 2016: Clinical Hemorheology and Microcirculation
https://www.readbyqxmd.com/read/27882136/accuracy-of-contrast-enhanced-ultrasound-compared-with-conventional-ultrasound-in-acute-pancreatitis-diagnosis-and-complication-monitoring
#11
Diming Cai, Shyam Sundar Parajuly, Huiyao Wang, Xiaoling Wang, Wenwu Ling, Bin Song, Yongzhong Li, Yan Luo
Contrast-enhanced ultrasound (CEUS) has been used for diagnosing acute pancreatitis (AP), particularly severe acute pancreatitis (SAP). However, the diagnostic difference between CEUS and conventional ultrasonography (CUS) for AP and SAP has not been reported. The aim of the present study was to investigate the diagnostic accuracy of CUS and CEUS for AP. A total of 196 patients clinically diagnosed with AP were selected. All patients underwent CUS, CEUS and contrast-enhanced computed tomography (CECT) within 72 h...
November 2016: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/27861987/comparison-of-contrast-enhanced-ultrasonograpy-with-gd-eob-dtpa-enhanced-mri-in-the-diagnosis-of-liver-metastasis-from-colorectal-cancer
#12
Kazue Shiozawa, Manabu Watanabe, Takashi Ikehara, Yasushi Matsukiyo, Michio Kogame, Yoshinori Kikuchi, Yuichiro Otsuka, Hironori Kaneko, Yoshinori Igarashi, Yasukiyo Sumino
PURPOSE: To compare contrast-enhanced ultrasonography (CEUS) using Sonazoid with Gd-EOB-DTPA-enhanced MRI (EOB-MRI) in the diagnosis of liver metastases in patients with colorectal cancer. METHODS: A total of 69 patients diagnosed with or suspected of having liver metastasis were enrolled. These hepatic lesions were diagnosed by histopathological examination after surgical resection or based on follow-up using various imaging modalities. The diagnostic accuracies of CEUS and EOB-MRI were compared...
November 12, 2016: Journal of Clinical Ultrasound: JCU
https://www.readbyqxmd.com/read/27860550/contrast-enhanced-us-guided-interventions-improving-success-rate-and-avoiding-complications-using-us-contrast-agents
#13
Dean Y Huang, Gibran T Yusuf, Mohammad Daneshi, Mohammad Ali Husainy, Raymond Ramnarine, Maria E K Sellars, Paul S Sidhu
Ultrasonography (US) is an established modality for intervention. The introduction of microbubble US contrast agents (UCAs) has the potential to further improve US imaging for intervention. According to licensing, UCAs are currently approved for clinical use in restricted situations, but many additional indications have become accepted as having clinical value. The use of UCAs has been shown to be safe, and there is no risk of renal toxic effects, unlike with iodinated or gadolinium contrast medium. Broadly speaking, UCAs can be injected into the bloodstream (intravascular use) or instilled into almost any accessible body cavity (endocavitary use), either in isolation or synchronously...
November 18, 2016: Radiographics: a Review Publication of the Radiological Society of North America, Inc
https://www.readbyqxmd.com/read/27858703/chronic-liver-disease-quantitative-mri-vs%C3%A2-ceus-based-microperfusion
#14
M Haimerl, S Poelsterl, L P Beyer, I Wiesinger, C Nießen, C Stroszczynski, P Wiggermann, E-M Jung
PURPOSE: To compare the diagnostic performance of MRI-based T1 relaxometry with dynamic contrast-enhanced ultrasound (CEUS)-based liver microcirculation for evaluation of liver function. MATERIALS AND METHODS: 22 patients underwent Gd-EOB-DTPA-enhanced MRI with T1 relaxometry and previous or consecutive CEUS examinations. A transverse 3D VIBE sequence with an inline T1 calculation was acquired and the reduction rate of T1 relaxation time (rrT1) was evaluated. For CEUS measurements (1-6 MHz), a bolus injection of 1...
November 18, 2016: Clinical Hemorheology and Microcirculation
https://www.readbyqxmd.com/read/27858701/contrast-enhanced-ultrasonography-as-a-new-method-for-assessing-autonomization-of-pedicle-and-microvascular-free-flaps-in-head-and-neck-reconstructive-surgery
#15
Steffen Mueller, Christina M Wendl, Tobias Ettl, Christoph Klingelhöffer, Sebastian Geis, Lukas Prantl, Torsten E Reichert, Ernst Michael Jung
OBJECTIVE: Evaluating vascular autonomization of pedicle and microvascular free flaps for soft tissue reconstruction in the head and neck area by means of postoperative quantitative measurement of dynamic contrast values obtained with contrast-enhanced ultrasound. METHODS: 8/18 patients underwent lip reconstruction with a pedicle flap, 10 patients reconstruction of other parts of the head with a microvascular free transplant. Ultrasound examinations were within the 1st postoperative week and 4 weeks after surgery...
November 18, 2016: Clinical Hemorheology and Microcirculation
https://www.readbyqxmd.com/read/27853812/ultrasound-guided-percutaneous-laser-ablation-of-unifocal-t1n0m0-papillary-thyroid-microcarcinoma-preliminary-results
#16
Wei Zhou, Shan Jiang, Weiwei Zhan, Jianqiao Zhou, Shangyan Xu, Lu Zhang
OBJECTIVES: To evaluate the efficacy and safety of percutaneous laser ablation (PLA) for unifocal T1N0M0 papillary thyroid microcarcinoma(PTMC). METHODS: A retrospective study was conducted in 30 patients with single PTMC which was diagnosed by fine-needle aspiration biopsy (FNAB). PLA was performed for proper time to achieve adequate ablation zones. The extent of ablation was assessed by contrast-enhanced ultrasound (CEUS) immediately and 7 days after PLA. Complications were recorded...
November 16, 2016: European Radiology
https://www.readbyqxmd.com/read/27847699/ultrasound-for-localization-of-central-venous-catheter-a-good-alternative-to-chest-x-ray
#17
Hamid Kamalipour, Sedigheh Ahmadi, Karmella Kamali, Alireza Moaref, Masih Shafa, Parsa Kamalipour
BACKGROUND: Chest radiography after central venous catheter (CVC) insertion is the main method of verifying the catheter location. Despite the widespread use of radiography for detecting catheter position, x-ray may not always be readily available, especially in the operating room. OBJECTIVES: We aimed to compare contrast-enhanced ultrasonography (CEUS) and chest radiography for detecting the correct location of CVCs. METHODS: One hundred sixteen consecutive patients with indications for CVC before cardiac surgery were enrolled in this observational study...
October 2016: Anesthesiology and Pain Medicine
https://www.readbyqxmd.com/read/27837395/evaluation-of-sorafenib-for-advanced-hepatocellular-carcinoma-with-low-%C3%AE-fetoprotein-in-arrival-time-parametric-imaging-using-contrast-enhanced-ultrasonography
#18
Kazue Shiozawa, Manabu Watanabe, Takashi Ikehara, Ryo Shimizu, Mie Shinohara, Yoshinori Igarashi, Yasukiyo Sumino
PURPOSE: To determine the usefulness of arrival time parametric imaging (AtPI) using contrast-enhanced ultrasonography (CEUS) with Sonazoid in evaluating early response to sorafenib for hepatocellular carcinoma (HCC). METHODS: Twenty-one advanced HCC patients with low α-fetoprotein (AFP) levels (≤35 ng/ml) who received sorafenib for at least 4 weeks were enrolled in this study. CEUS was performed before and 2 weeks after treatment, and the images of the target lesion in the arterial phase were analyzed by AtPI...
November 11, 2016: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/27832653/conventional-doppler-and-contrast-enhanced-ultrasonography-in-differential-diagnosis-of-ovarian-masses
#19
Zongyu Liu, Fan Yang, Yong Zhang, Huimei Yu, He Zhu, Ruiqi Yang, Limei Fan
BACKGROUND: Differential diagnosis of ovarian masses can influence both treatment selection and prognosis of ovarian tumor patients. A comprehensive review was performed with respect to the diagnostic value of conventional ultrasonography, Doppler ultrasonography and contrast-enhanced ultrasonography (CEUS) in differentiating benign from malignant ovarian masses. METHODS: Databases were searched for relevant articles. Retrieved studies were screened according to the inclusion criteria...
2016: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/27828854/application-of-high-resolution-ultrasound-real-time-elastography-and-contrast-enhanced-ultrasound-in-differentiating-solid-thyroid-nodules
#20
Yu-Zhi Zhang, Ting Xu, Hai-Yan Gong, Cui-Ying Li, Xin-Hua Ye, Hong-Jun Lin, Mei-Ping Shen, Yu Duan, Tao Yang, Xiao-Hong Wu
High-resolution ultrasound (HRUS) is a sensitive tool for identifying thyroid nodules. Real-time elastography (RTE) and contrast-enhanced ultrasound (CEUS) are newly developed methods which could measure tissue elasticity and perfusion features. The aim of the present study was to evaluate and compare the diagnostic efficiency of HRUS, RTE, CEUS and their combined use in the differentiation of benign and malignant solid thyroid nodules.In total, 111 consecutive patients with 145 thyroid nodules who were scheduled for surgery were included in the study...
November 2016: Medicine (Baltimore)
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