3,564 results match your criteria ceus


Hydroxyl Ethyl Starch (HES) preserves intrarenal microcirculatory perfusion shown by contrast-enhanced ultrasound (CEUS), and renal function in a severe hemodilution model in pigs.

Shock 2021 Sep 23. Epub 2021 Sep 23.

Department of Intensive Care, Laboratory of Translational Intensive Care, Erasmus MC, University Medical Center Rotterdam, Rotterdam, the Netherlands Department of Biomedical Engineering, Thorax Center, Erasmus MC, Rotterdam, the Netherlands Laboratory of Experimental Anesthesiology, Department of Anesthesiology, Erasmus MC, Rotterdam, the Netherlands Laboratory of Acoustical Wavefield Imaging, Department of Applied Sciences, Delft University of Technology, Delft, the Netherlands.

Abstrac: Acute normovolemic hemodilution (ANH) is associated with low oxygen carrying capacity of blood and purposed to cause renal injury in perioperative setting. It is best accomplished in a perioperative setting by a colloid such as hydroxyl ethyl starch (HES) due its capacity to fill the vascular compartment and maintain colloidal pressure. However, alterations of intra renal microvascular perfusion, flow and its effects on renal function and damage during ANH has not been sufficiently clarified. Read More

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September 2021

Preoperative Prediction of Microvascular Invasion in Patients With Hepatocellular Carcinoma Based on Radiomics Nomogram Using Contrast-Enhanced Ultrasound.

Front Oncol 2021 7;11:709339. Epub 2021 Sep 7.

Department of Internal Medicine, Hirslanden Clinic, Bern, Switzerland.

Purpose: This study aimed to develop a radiomics nomogram based on contrast-enhanced ultrasound (CEUS) for preoperatively assessing microvascular invasion (MVI) in hepatocellular carcinoma (HCC) patients.

Methods: A retrospective dataset of 313 HCC patients who underwent CEUS between September 20, 2016 and March 20, 2020 was enrolled in our study. The study population was randomly grouped as a primary dataset of 192 patients and a validation dataset of 121 patients. Read More

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September 2021

Tumor size-based validation of contrast-enhanced ultrasound liver imaging reporting and data system (CEUS LI-RADS) 2017 for hepatocellular carcinoma characterizing.

Br J Radiol 2021 Oct;94(1126):20201359

Department of Medical Ultrasonics, Institute of Diagnostic and Interventional Ultrasound, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China.

Objectives: To validate the efficacy of contrast-enhanced ultrasound Liver Imaging Reporting and Data System (CEUS LI-RADS) and its major features in diagnosing hepatocellular carcinoma (HCC) of different sizes in high-risk patients.

Methods: Between January 2014 and December 2015, a total of 545 untreated liver nodules were included. These liver nodules were divided into two groups (<20 mm and ≥20 mm). Read More

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October 2021

Novel model combining contrast-enhanced ultrasound with serology predicts hepatocellular carcinoma recurrence after hepatectomy.

World J Clin Cases 2021 Aug;9(24):7009-7021

Department of Hepatobiliary Surgery, Mengchao Hepatobiliary Hospital of Fujian Medical University, Fuzhou 350025, Fujian Province, China.

Background: Surgery is the primary curative option in patients with hepatocellular carcinoma (HCC). However, recurrence within 2 years is observed in 30%-50% of patients, being a major cause of mortality.

Aim: To construct and verify a non-invasive prediction model combining contrast-enhanced ultrasound (CEUS) with serology biomarkers to predict the early recurrence of HCC. Read More

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The definitive role of CEUS in an ambiguous case of renal cell carcinoma.

J Ultrason 2021 Aug 9;21(86):e248-e251. Epub 2021 Sep 9.

Department of Interventional Radiology and Neuroradiology, Medical University of Lublin, Lublin, Poland.

Angiomyolipoma is a benign tumor consisting of abnormal vessels, smooth muscles, and fatty tissue. Renal cell carcinoma is an insidious neoplasm accounting for approximately 2% of global cancer diagnoses. Due to similar diagnostic features, the differentiation between the two types is sometimes difficult. Read More

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Real-time CEUS-guided biopsy revealing a littoral cell angioma of the spleen after inconclusive CT and MRI findings.

J Ultrason 2021 Aug 9;21(86):e244-e247. Epub 2021 Sep 9.

Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humbold-Universität zu Berlin, and Berlin Institute of Health, Department of Radiology, Berlin, Germany.

The aim of this case report is to present real-time CEUS-guided biopsy for diagnosing rare benign splenic pathologies after inconclusive findings on cross-sectional imaging. We present the case of a 50-year-old male patient who received a contrast-enhanced computed tomography scan of the thorax during the evaluation for lung transplant due to lung fibrosis, with incidental finding of disseminated hypodense splenic lesions. During follow-up imaging, the patient did not tolerate a complete MRI examination, and two acquired pulse sequences did not confirm the final diagnosis. Read More

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Contrast-enhanced ultrasound imaging for intestinal lymphoma.

World J Gastroenterol 2021 Aug;27(32):5438-5447

Department of Ultrasound, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China.

Background: Intestinal lymphoma is a rare tumor. Contrast-enhanced ultrasound (CEUS) findings of intestinal lymphoma have not been reported previously, and the relationship between CEUS and clinicopathological features and prognostic factors is still unknown.

Aim: To describe the B-mode US and CEUS features of intestinal lymphoma and investigate the correlation of CEUS and histopathological features. Read More

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Application of contrast-enhanced ultrasound in the diagnosis of burn depth.

Ann Transl Med 2021 Aug;9(16):1315

Grand Life Science & Technology, Ltd., Beijing, China.

Background: The diagnosis of burn depth often relies on the subjective judgment of plastic surgeons. Contrast-enhanced ultrasound (CEUS) can visualize the microcirculation well and has potential value in diagnosing the depth of burn wounds. We assessed the depth of the burn wounds by CEUS, and compared the results with histological examination. Read More

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Contrast-enhanced ultrasound as a valuable imaging modality for characterizing testicular lesions.

Asian J Androl 2021 Sep 14. Epub 2021 Sep 14.

Department of Ultrasound, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 201620, China.

Contrast-enhanced ultrasound (CEUS) is a new form of ultrasound (US) that can dynamically display microvessels in a highly sensitive manner. The purpose of this study was to investigate the efficacy of CEUS for characterizing testicular lesions in comparison with conventional US. Forty-seven patients with testicular lesions were enrolled. Read More

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September 2021

Metanephric adenoma: association between the imaging features of contrast-enhanced ultrasound and clinicopathological characteristics.

Gland Surg 2021 Aug;10(8):2490-2499

Department of Ultrasound, The Second Clinical Medical College, Jinan University (Shenzhen People's Hospital), Shenzhen, China.

Background: This study aimed to improve the understanding of metanephric adenoma (MA) by retrospective analysis of contrast-enhanced ultrasound (CEUS) findings and clinicopathological characteristics of MAs.

Methods: Gray-scale ultrasound (US) and CEUS findings of 7 adult MA patients, confirmed by postoperative pathology, were summarized via collection of clinicopathological and ultrasonographic imaging data, including tumor location, size, echo intensity, color flow, presence or absence of calcification, and liquefactive necrosis, contrast-enhanced pattern, enhancement characteristics, and contrast wash-out compared with adjacent parenchyma, and the presence or absence of a pseudocapsule. Histopathological analyses, including hematoxylin and eosin (HE) and immunohistochemical (IHC) staining, were conducted with the EnVision method. Read More

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Contrast-Enhanced Ultrasound Imaging Features of Focal Splenic Tuberculosis.

Med Sci Monit 2021 Sep 16;27:e932654. Epub 2021 Sep 16.

Department of Ultrasonography, Affiliated Hangzhou Chest Hospital, Zhejiang University School of Medicine (Integrated Chinese and Western Hospital of Zhejiang Province, Hangzhou Red Cross Hospital), Hangzhou, Zhejiang, China (mainland).

BACKGROUND The aim of this study was to characterize the contrast-enhanced ultrasound imaging features of focal splenic tuberculosis. MATERIAL AND METHODS We retrospectively analyzed the conventional ultrasound (US) and contrast-enhanced ultrasound (CEUS) imaging features of 22 patients with splenic TB confirmed by surgical histopathology or biopsy. RESULTS Conventional US demonstrated that 15 of the 22 patients had a single lesion, while 7 had multiple lesions. Read More

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September 2021

Intracranial Pressure and Cerebral Hemodynamic Monitoring After Cardiac Arrest in Pediatric Pigs Using Contrast Ultrasound-Derived Parameters.

J Ultrasound Med 2021 Sep 15. Epub 2021 Sep 15.

Department of Radiology, Children's Hospital of Philadelphia, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.

Objectives: We explore the correlation of contrast-enhanced ultrasound (CEUS) parameters to intracranial pressure (ICP) in a porcine experimental model of pediatric cardiac arrest.

Methods: Eleven pediatric pigs underwent electrically induced cardiac arrest followed by cardiopulmonary resuscitation. ICP was measured using intracranial bolt monitor and CEUS was monitored through a cranial window. Read More

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September 2021

[CME Sonography 101/Answers: Ultrasound of the Musculoskeletal System - Update 2021].

Praxis (Bern 1994) 2021 Sep;110(12):698-699

CIM SA, Cabinet d'imagerie médicale, Genf.

CME Sonography 101/Answers: Ultrasound of the Musculoskeletal System - Update 2021 Ultrasound technologies in medicine (and in many other areas of life) continuously undergo enormous technological advances. There is increasing automation in medicine, and this is also true for diagnostic imaging. This article describes the current state of the art in musculoskeletal ultrasound and takes a look into the near future. Read More

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September 2021

Tumor in vein (LR-TIV) and liver imaging reporting and data system (LI-RADS) v2018: diagnostic features, pitfalls, prognostic and management implications.

Abdom Radiol (NY) 2021 Sep 14. Epub 2021 Sep 14.

Department of Radiology, Abdominal Imaging Division, University of Pittsburgh, 200 Lothrop St, UPMC Presbyterian Suite 200, Pittsburgh, PA, 15213, USA.

Vascular invasion by hepatocellular carcinoma (HCC), also known as tumor in vein (TIV), indicates highly invasive tumor behavior and is also associated with poor outcome. Because a diagnosis of TIV precludes liver transplantation, knowledge of the imaging findings to differentiate between TIV and bland thrombus is key for proper patient management. Prior versions of liver imaging reporting and data system (LI-RADS) included presence of TIV as part of LR-5 criteria. Read More

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September 2021

CEUS-Based Radiomics Can Show Changes in Protein Levels in Liver Metastases After Incomplete Thermal Ablation.

Front Oncol 2021 26;11:694102. Epub 2021 Aug 26.

Department of Ultrasound, The First Affiliated Hospital, Zhejiang Chinese Medical University, Hangzhou, China.

Objective: To investigate the ability of contrast-enhanced ultrasound (CEUS)-based radiomics combined with machine learning to detect early protein changes after incomplete thermal ablation.

Methods: HCT-26 colorectal adenoma cells were engrafted into the livers of 80 mice, which were randomly divided into 4 groups for palliative laser ablation. Changes in heat shock protein (HSP) and apoptosis-related protein expression in the tumors were assessed. Read More

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Correlation Between Enhancement Patterns on Transabdominal Ultrasound and Survival for Pancreatic Ductal Adenocarcinoma.

Cancer Manag Res 2021 31;13:6823-6832. Epub 2021 Aug 31.

Department of Ultrasound, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, People's Republic of China.

Objective: Investigate the CEUS enhancement patterns of PDAC and analyse correlations between the CEUS enhancement pattern and both the degree of tumour tissue differentiation and overall survival (OS).

Methods: The study included 56 patients with locally advanced PDAC, performed conventional ultrasound and CEUS, and analysed characteristics of the CEUS enhancement patterns. In addition, clinical data, such as serum level of CA19-9, TNM stage were collected, and patients' survival times were followed up. Read More

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Features of ultrasound and contrast enhanced ultrasound in superficial desmoid-type fibromatosis: A series of 19 cases.

Clin Hemorheol Microcirc 2021 Sep 5. Epub 2021 Sep 5.

Department of Ultrasound, Second Affiliated Hospital of Zhejiang University, School of Medicine, Hangzhou, China.

This study aimed to describe the characteristics of superficial desmoid fibromatosis (DF) using two-dimensional and contrast-enhanced ultrasonography, intending to improve diagnostic accuracy. We retrospectively analyzed 19 cases of superficial DF confirmed by surgery or core-needle biopsy in our hospital from January 2018 to August 2020. All patients underwent two-dimensional and contrast-enhanced ultrasound (CEUS) examination. Read More

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September 2021

Carotid artery vulnerable plaque model for cerebrovascular events by conventional ultrasound & contrast-enhanced ultrasound: A preliminary study.

Clin Hemorheol Microcirc 2021 Sep 7. Epub 2021 Sep 7.

Shanghai Tongren Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China.

Background: Conventional ultrasound and contrast-enhanced ultrasound play an important role in the application of carotid plaque.

Aims: To establish carotid artery vulnerable plaques plaque model by conventional ultrasound combined with contrast-enhanced ultrasound, identify high-risk plaques that may lead to cerebrovascular events, and provide clinical risk warning of high-risk plaques of stroke.

Methods: 205 cases of patients selected in 5053 patients with symptoms from 2018 to 2019 who were verified carotid plaques by conventional ultrasound and contrast-enhanced ultrasound image characteristics, 147 cases as a training set, establishing the carotid artery plaque model, analyzing the characteristic of the plaques and the relationship between cerebrovascular event, with 58 cases as a test set, verify the model. Read More

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September 2021

Adnexal masses: Diagnostic performance of contrast-enhanced ultrasound (CEUS) of the simple rules from the International Ovarian Tumor Analysis group.

Int J Gynaecol Obstet 2021 Sep 12. Epub 2021 Sep 12.

Ultrasound medical center, Lanzhou University Second Hospital, Chengguan district, Lanzhou, Gansu province, China.

Objective: to evaluate the role of Contrast-Enhanced Ultrasound (CEUS) of the Simple Rules (SR) from the International Ovarian Tumor Analysis group for the differential diagnosis of benign and malignant adnexal tumors.

Methods: A total of 180 patients with suspected malignant adnexal masses admitted to Lanzhou University Second Hospital were included, all of whom received conventional ultrasound (US) and CEUS examination before surgery. All masses were assessed using SR in US and SR in CEUS respectively. Read More

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September 2021

Safety and parents´ acceptance of ultrasound contrast agents in children and adolescents - contrast enhanced voiding urosonography and contrast enhanced ultrasound.

Med Ultrason 2021 Sep 11. Epub 2021 Sep 11.

Section of Pediatric Radiology, Institute of Diagnostic and Interventional Radiology, University hospital Jena, Jena, Germany.

Aims: To evaluate the safety of the contrast enhanced voiding urosonography (ceVUS) and contrast enhanced ultrasound (CEUS) in children and adolescence and to receive data about parents' acceptance of intravesical and intravenous application of sulfur hexafluoride.

Material And Methods: In this prospective, single centre study conducted over a 1 year study period, parents of 56 children (f/m=32/24; mean age 3.1 years; range 3 weeks - 15. Read More

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September 2021

The Value of Contrast-Enhanced Ultrasound in Diagnosing Small Renal Cell Carcinoma Subtypes and Angiomyolipoma.

J Ultrasound Med 2021 Sep 9. Epub 2021 Sep 9.

Department of Ultrasound, Huadong Hospital, Fudan University, Shanghai, China.

Objectives: To retrospectively explore the value of contrast-enhanced ultrasound (CEUS) in differentiating small renal cell carcinomas (RCCs) from angiomyolipomas (AMLs), and distinguishing between clear cell RCC (ccRCC), papillary RCC (pRCC), and chromophobe RCC (chRCC).

Methods: A total of 151 patients with small renal masses (110 ccRCCs, 12 pRCCs, 9 chRCCs, and 20 AMLs) were enrolled between August 2016 and October 2019.

Results: There were significant differences in terms of enhancement intensity (EI), enhancement homogeneity, perilesional rim-like enhancement (PRE), wash in, and wash out (WO) between RCC and AML (P = . Read More

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September 2021

A comparison of trans-fistula contrast-enhanced endoanal ultrasound and MRI in the diagnosis of anal fistula.

Ann Palliat Med 2021 Aug;10(8):9165-9173

Department of Ultrasound in Medicine, Hwa Mei Hospital, University of Chinese Academy of Sciences, Ningbo, China.

Background: Many hospitals favor magnetic resonance imaging (MRI) as the preferred diagnostic method to detect anal fistula, trans-fistula contrast-enhanced ultrasound (CEUS) for the diagnosis of anal fistula have attracted the attention of investigators worldwide. This study aimed to investigate the efficacy of trans-fistula contrast-enhanced endoanal ultrasound (CEUS) and magnetic resonance imaging (MRI) in the diagnosis of anal fistula.

Methods: Ninety-eight patients undergoing trans-fistula CEUS and MRI were retrospectively analyzed. Read More

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Feature Fusion for Diagnosis of Atypical Hepatocellular Carcinoma in Contrast-Enhanced Ultrasound.

IEEE Trans Ultrason Ferroelectr Freq Control 2021 Sep 6;PP. Epub 2021 Sep 6.

Contrast-Enhanced Ultrasound (CEUS) is generally employed for Focal Liver Lesions (FLLs) diagnosis. Among the FLLs, atypical hepatocellular carcinoma (HCC) is difficult to distinguish from Focal Nodular Hyperplasia (FNH) in CEUS video. For this reason, we propose and evaluate a feature fusion method to resolve this problem. Read More

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September 2021

Contrast-Enhanced Ultrasound Findings of Hepatocellular Carcinoma With Neuroendocrine Carcinoma: A Case Report.

Front Med (Lausanne) 2021 16;8:602346. Epub 2021 Aug 16.

Department of Ultrasound, West China Hospital of Sichuan University, Chengdu, China.

Hepatocellular carcinoma (HCC) with the concurrent occurrence of primary hepatic neuroendocrine carcinoma (NEC) of the liver is extremely rare. Preoperative diagnosis of HCC combined with NEC is very difficult. Here, we presented a case report of HCC combined with NEC. Read More

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Correlation between serum uric acid levels and carotid plaque neovascularisation assessed by contrast-enhanced ultrasound.

Clin Radiol 2021 Sep 2. Epub 2021 Sep 2.

Department of Ultrasound, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, 646000, China. Electronic address:

Aim: To investigate the potential impact of serum uric acid (SUA) levels on the grade of intraplaque neovascularisation (IPN) at contrast-enhanced ultrasound (CEUS).

Material And Methods: The study screened 212 patients with carotid atherosclerotic plaques using conventional ultrasound, and the patients then underwent CEUS. Based on the distribution of contrast medium microbubbles in the plaque, patients were split into three groups: 60 patients regarded as grade 0-1 (group A), 81 patients as grade 2 (group B), and 71 patients as grade 3 (group C), and SUA levels were measured on the second day after CEUS. Read More

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September 2021

Quantification of dynamic contrast-enhanced ultrasound (CEUS) in non-cystic breast lesions using external perfusion software.

Sci Rep 2021 Sep 3;11(1):17677. Epub 2021 Sep 3.

Institute of Radiology, Interdisciplinary Department for Ultrasound, University Medical Center, Regensburg, Franz-Josef-Strauß-Allee 11 , 93053, Regensburg, Germany.

The aim of this present clinical pilot study is the display of typical perfusion results in patients with solid, non-cystic breast lesions. The lesions were characterized using contrast enhanced ultrasound (CEUS) with (i) time intensity curve analyses (TIC) and (ii) parametric color maps. The 24 asymptomatic patients included were genetically tested for having an elevated risk for breast cancer. Read More

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September 2021

Contrast-Enhanced Ultrasound Improves the Accuracy of the ACR TI-RADS in the Diagnosis of Thyroid Nodules Located in the Isthmus.

Ultraschall Med 2021 Sep 3. Epub 2021 Sep 3.

Department of Ultrasound in Medicine, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China.

Objectives:  To evaluate the diagnostic performance of the American College of Radiology (ACR) Thyroid Image Reporting and Data System (TI-RADS), contrast-enhanced ultrasound (CEUS), and a modified TI-RADS in differentiating benign and malignant nodules located in the isthmus.

Methods:  This retrospective study was approved by the institutional review board. Informed consent was obtained. Read More

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September 2021

Contrast-enhanced ultrasonography promotes differential diagnosis of ureteral neoplasms.

Br J Radiol 2021 Sep 3:20210078. Epub 2021 Sep 3.

Department of Medical Ultrasound, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.

Objective: To compare the diagnostic value of contrast-enhanced ultrasonography (CEUS) with baseline ultrasound (B-US) in ureteral neoplasms.

Methods: Retrospective analysis, comprising clinical presentation, image appearances, and diagnostic results on B-ultrasound and CEUS, considering pathological result as a gold-standard, was conducted on the clinical information of 39 patients with ureteral neoplasms. CT urography was used to detect and confirm the presence of ureteral neoplasms. Read More

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September 2021

The diagnostic value of Doppler ultrasonography after pediatric kidney transplantation.

Authors:
Doris Franke

Pediatr Nephrol 2021 Sep 3. Epub 2021 Sep 3.

Pediatric Ultrasonography, Clinic for Pediatric Kidney, Liver and Metabolic Diseases, Hannover Medical School, Carl-Neuberg-Str 1, 30625, Hannover, Germany.

Ultrasonography (US) plays a major diagnostic role in the pre- and post-transplant evaluation of recipient and donor. In most cases, US remains the only necessary imaging modality. After pediatric kidney transplantation, US can ensure immediate bedside diagnosis of vessel patency and possible postoperative non-vascular complications. Read More

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September 2021

Contrast-enhanced ultrasound for evaluation of tumor perfusion and outcome following treatment in a murine melanoma model.

Bioelectrochemistry 2021 Aug 18;142:107932. Epub 2021 Aug 18.

Institute of Oncology Ljubljana, Zaloska 2, Ljubljana, Slovenia; Faculty of Medicine, University of Ljubljana, Vrazov trg 2, Ljubljana, Slovenia. Electronic address:

Due to a lack of data on predictors of electroporation-based treatment outcomes, we investigated the potential predictive role of contrast-enhanced harmonic ultrasound (CEUS) in mice B16F10 melanoma treated by gene electrotransfer (GET) to silence melanoma cell adhesion molecule (MCAM) and radiotherapy, which has not been evaluated yet. CEUS evaluation was verified by tumor histological analysis. Mice bearing subcutaneous tumors were treated with GET to silence MCAM, irradiation or the combination of GET to silence MCAM and irradiation (combined treatment). Read More

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