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Elastography ARFI

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https://www.readbyqxmd.com/read/28646602/comparison-of-acoustic-radiation-force-impulse-imaging-and-strain-elastography-in-differentiating-malignant-from-benign-thyroid-nodules
#1
Fengjuan Zhang, Xinming Zhao, Ruoling Han, Min Du, Ping Li, Xiaohui Ji
OBJECTIVES: This study aimed to evaluate the diagnostic value of acoustic radiation force impulse (ARFI) imaging and strain elastography in differentiating malignant from benign thyroid nodules. METHODS: This study included 128 patients (104 female and 24 male; mean age ± standard deviation, 48 ± 11 years; range, 23-76 years) with 152 pathologically proven thyroid nodules. Conventional sonography, strain ratio (SR) of strain elastography, virtual touch tissue imaging (VTI) grade, and virtual touch tissue quantification (shear wave velocity [SWV]) from ARFI imaging data were generated for each nodule...
June 24, 2017: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/28595851/delineation-of-post-procedure-ablation-regions-with-electrode-displacement-elastography-with-a-comparison-to-acoustic-radiation-force-impulse-imaging
#2
Wenjun Yang, Tomy Varghese, Timothy Ziemlewicz, Marci Alexander, Meghan Lubner, James Louis Hinshaw, Shane Wells, Fred T Lee
We compared a quasi-static ultrasound elastography technique, referred to as electrode displacement elastography (EDE), with acoustic radiation force impulse imaging (ARFI) for monitoring microwave ablation (MWA) procedures on patients diagnosed with liver neoplasms. Forty-nine patients recruited to this study underwent EDE and ARFI with a Siemens Acuson S2000 system after an MWA procedure. On the basis of visualization results from two observers, the ablated region in ARFI images was recognizable on 20 patients on average in conjunction with B-mode imaging, whereas delineable ablation boundaries could be generated on 4 patients on average...
June 5, 2017: Ultrasound in Medicine & Biology
https://www.readbyqxmd.com/read/28569362/can-arfi-elastography-be-used-to-differentiate-parathyroid-from-thyroid-lesions
#3
A Chandramohan, M Therese, D Abhraham, T V Paul, P Jacob Mazhuvanchary
OBJECTIVES: To assess if elasticity score (ES) and shear wave velocity (SWV) measurement obtained using ARFI elastography can differentiate between parathyroid lesions and thyroid nodules. MATERIALS AND METHODS: ARFI elastography was performed on patients with primary hyperparathyroidism or solid thyroid nodules who were being considered for surgery using virtual touch quantification and virtual touch imaging (VTI) software. Only patients with surgical histopathology (47 parathyroid lesions, 38 benign thyroid nodules and 55 malignant thyroid nodules) were included for final analysis...
May 31, 2017: Journal of Endocrinological Investigation
https://www.readbyqxmd.com/read/28564643/prevent-pancreatic-fistula-after-pancreatoduodenectomy-possible-role-of-ultrasound-elastography
#4
Mirko D'Onofrio, Giulia Tremolada, Riccardo De Robertis, Stefano Crosara, Valentina Ciaravino, Nicolò Cardobi, Giovanni Marchegiani, Alessandra Pulvirenti, Valentina Allegrini, Roberto Salvia, Claudio Bassi, Roberto Pozzi Mucelli
BACKGROUND: The purpose of the study is to evaluate the utility of acoustic radiation force impulse (ARFI) on pancreatic tissue as a preoperative predictor of postoperative pancreatic fistula (POPF). Studied patients underwent exclusively to pancreaticoduodenectomy (PD) surgery. METHODS: Shear wave velocity of pancreas was measured using ARFI in 71 patients scheduled for PD. An intraoperative pancreas palpation was made by surgeons. A postoperative clinical evaluation to detect occurrence of POPF was performed...
June 1, 2017: Digestive Surgery
https://www.readbyqxmd.com/read/28542533/ultrasonography-methods-for-predicting-malignancy-in-canine-mammary-tumors
#5
Marcus Antonio Rossi Feliciano, Ricardo Andrés Ramirez Uscategui, Marjury Cristina Maronezi, Ana Paula Rodrigues Simões, Priscila Silva, Beatriz Gasser, Leticia Pavan, Cibele Figueira Carvalho, Júlio Carlos Canola, Wilter Ricardo Russiano Vicente
The aim of this study was to evaluate and compare the efficacy of B-mode, Doppler, contrast-enhanced ultrasonography (CEUS), and Acoustic Radiation Force Impulse (ARFI) elastography in predicting malignancy in canine mammary masses. This was a prospective cohort study from 2014 to 2016, which included 153 bitches with one or more mammary masses. A total of 300 masses were evaluated by ultrasonography (B-mode, Doppler, CEUS, and ARFI) and subsequently classified as benign or malignant by histopathology. Each ultrasound parameters studied were compared between benign and malignant masses by Chi-square or Student tests and differences were considered significant when P < 0...
2017: PloS One
https://www.readbyqxmd.com/read/28527203/value-of-different-ultrasound-elastography-techniques-in-patients-with-venous-malformations-prior-to-and-after-sclerotherapy
#6
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/28513280/application-of-acoustic-radiation-force-impulse-arfi-elastography-in-imaging-of-delayed-onset-muscle-soreness-doms-a-comparative-analysis-with-3t-mri
#7
Thilo Hotfiel, Marion Kellermann, Bernd Swoboda, Dane Wildner, Tobias Golditz, Casper Grim, Martin Raithel, Michael Uder, Rafael Heiss
CONTEXT: DOMS is one of the most common reasons for impaired muscle performance in sports and is associated with reduced muscle strength and frequently observed both in professional and recreational athletes. OBJECTIVE: To emphasize the diagnostic value of Acoustic Radiation Force Impulse (ARFI) in imaging of Delayed Onset Muscle Soreness by comparing findings to high-resolution 3T MRI T2 weighted sequences. DESIGN: Case series. SETTING: Laboratory environment...
May 17, 2017: Journal of Sport Rehabilitation
https://www.readbyqxmd.com/read/28492613/erratum-correction-to-hu-x-et-al-acoustic-radiation-force-impulse-arfi-elastography-for-non%C3%A2-invasive-evaluation-of-hepatic-fibrosis-in-chronic-hepatitis-b-and-c-patients-a-systematic-review-and-meta-analysis-med-ultrason-2017-19-1-23-3
#8
(no author information available yet)
The authors have been made aware of the errors that appeared at Corresponding author: correct phone number 86-10-63138297 and correct email qianlinxue2002@163.com, and also at acknowledgements: correct grant no. 2014-3-009.
June 2017: Medical Ultrasonography
https://www.readbyqxmd.com/read/28468574/diagnostic-value-of-acoustic-radiation-force-impulse-quantification-in-the-differentiation-of-benign-and-malignant-thyroid-nodules
#9
Niraj Nirmal Pandey, Gaurav Shanker Pradhan, Alpana Manchanda, Anju Garg
The objective of this study was to evaluate the role of ultrasound elastography using acoustic radiation force impulse (ARFI) quantification in characterizing and differentiating malignant versus benign thyroid nodules. A total of 40 thyroid nodules were evaluated with conventional sonography and ultrasound elastography using ARFI quantification. The final diagnosis was obtained from histologic findings. A total of 14 malignant and 26 benign nodules were diagnosed on the basis of histologic examination. Majority of the malignant thyroid nodules demonstrated presence of intranodular vascular flow, hypoechoic echotexture, absent halo, irregular margins and microcalcifications...
May 1, 2017: Ultrasonic Imaging
https://www.readbyqxmd.com/read/28450709/multi-functional-ultrasonic-micro-elastography-imaging-system
#10
Xuejun Qian, Teng Ma, Mingyue Yu, Xiaoyang Chen, K Kirk Shung, Qifa Zhou
In clinical decision making, in addition to anatomical information, biomechanical properties of soft tissues may provide additional clues for disease diagnosis. Given the fact that most of diseases are originated from micron sized structures, an elastography imaging system of fine resolution (~100 µm) and deep penetration depth capable of providing both qualitative and quantitative measurements of biomechanical properties is desired. Here, we report a newly developed multi-functional ultrasonic micro-elastography imaging system in which acoustic radiation force impulse imaging (ARFI) and shear wave elasticity imaging (SWEI) are implemented...
April 27, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28440353/the-safety-and-feasibility-of-diagnostic-acoustic-radiation-force-impulse-elastography-used-for-eyes-a-preliminary-in-vivo-study
#11
Li Zha, Ke Qi Chen, Xiao Zhi Zheng, Jing Wu
AIMS: To assess the safety and feasibility of acoustic radiation force impulse (ARFI) elastography in the eyes of rats. Material and methods: One hundred and twenty-six SD rats were divided into 7 groups. Group 1 was the control group and Group 2 to Group 7 were investigated by ARFI elastography using increased powers of 5%, 10%, 20%, 50%, and 100% and repetitions of 5 or 10. The changes of ocular architecture structures and functions were examined by phthalmoscopic, histopathologic, and light reflex examination, and the expression level of IL-6, IL-8, and TNF-α was determined in days 1, 3, and 7 after ARFI elastography, respectively...
April 22, 2017: Medical Ultrasonography
https://www.readbyqxmd.com/read/28383564/development-of-a-simple-noninvasive-model-to-predict-significant-fibrosis-in-patients-with-chronic-hepatitis-b-combination-of-ultrasound-elastography-serum-biomarkers-and-individual-characteristics
#12
Xin Chen, Huiying Wen, Xinyu Zhang, Changfeng Dong, Haoming Lin, Yanrong Guo, Lingbo Shan, Simin Yao, Min Yang, Xiaohua Le, Yingxia Liu
OBJECTIVES: The accurate assessment of liver fibrosis is clinically important in patients with chronic hepatitis B (CHB). Blood tests and elastography are now widely used for the noninvasive diagnosis of liver fibrosis in CHB patients. The aim of this study was to develop a new and more accurate predictive model, which combines elastography data, serum biomarkers, and individual characteristics, to discriminate between CHB patients with and without significant liver fibrosis. METHODS: Two noninvasive methods, specifically, an ultrasound elastography technique termed acoustic radiation force impulse imaging (ARFI) and a blood test, were used to assess a cohort of 345 patients (estimation group, 218 patients; validation group, 127 patients) with CHB...
April 6, 2017: Clinical and Translational Gastroenterology
https://www.readbyqxmd.com/read/28357031/concordance-of-non-invasive-mechanical-and-serum-tests-for-liver-fibrosis-evaluation-in-chronic-hepatitis-c
#13
Denise C Paranaguá-Vezozzo, Adriana Andrade, Daniel F C Mazo, Vinicius Nunes, Ana L Guedes, Taisa G Ragazzo, Renata Moutinho, Lucas S Nacif, Suzane K Ono, Venâncio A F Alves, Flair J Carrilho
AIM: To determine the sensitivity and specificity of liver stiffness measurement (LSM) and serum markers (SM) for liver fibrosis evaluation in chronic hepatitis C. METHODS: Between 2012 and 2014, 81 consecutive hepatitis C virus (HCV) patients had METAVIR score from liver biopsy compared with concurrent results from LSM [transient elastography (TE) [FibroScan(®)/ARFI technology (Virtual Touch(®))] and SM [FIB-4/aspartate aminotransferase-to-platelet ratio index (APRI)]...
March 18, 2017: World Journal of Hepatology
https://www.readbyqxmd.com/read/28343660/a-pilot-study-of-ultrasound-elastography-as-a-non-invasive-method-to-monitor-liver-disease-in-children-with-short-bowel-syndrome
#14
Daniel Lodwick, Molly Dienhart, Jennifer N Cooper, Bonita Fung, Joseph Lopez, Sally Smith, Patrick Warren, Jane Balint, Peter C Minneci
BACKGROUND: Our objective was to evaluate the accuracy of acoustic radiation force impulse (ARFI) elastography in determining extent of liver fibrosis in pediatric patients with short bowel syndrome (SBS). METHODS: This prospective cohort study included pediatric patients with SBS who underwent ultrasound with ARFI measurements of shear wave speed (SWS) and liver biopsy within 30days of each other between 12/2014-9/2015. The mean and median SWS were compared to the stage of fibrosis...
June 2017: Journal of Pediatric Surgery
https://www.readbyqxmd.com/read/28328804/liver-function-in-alpha-1-antitrypsin-deficient-individuals-at-37-to-40-years-of-age
#15
Behrouz Mostafavi, Sandra Diaz, Hanan A Tanash, Eeva Piitulainen
Severe alpha-1-antitrypsin (AAT) deficiency (PiZZ) is a risk factor for liver disease, but the prevalence of liver cirrhosis and hepatocellular cancer in PiZZ adults is unknown. The risk of liver disease in adults with moderate AAT deficiency (PiSZ) is also unknown. A cohort of 127 PiZZ, 2 PiZnull, 54 PiSZ, and 1 PiSnull individuals were identified by the Swedish national neonatal AAT screening program between 1972 and 1974, when all 200,000 newborn infants in Sweden were screened for AAT deficiency. The cohort has been followed up since birth...
March 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28298942/liver-acoustic-radiation-force-impulse-arfi-in-childhood-obesity-comparison-and-correlation-with-biochemical-markers
#16
COMPARATIVE STUDY
Rajeev Kamble, Kushaljit S Sodhi, Babu R Thapa, Akshay K Saxena, Anmol Bhatia, Devi Dayal, Niranjan Khandelwal
PURPOSE: To compare and correlate the diagnostic efficiency of acoustic radiation force impulse (ARFI) elastography with biochemical markers for assessing hepatic changes in overweight and obese children. METHODS: This prospective study was approved by the institutional ethics committee. It included 54 overweight and obese children and 50 normal children (as a control group) in the age range 5-18 years. For all children, we performed grayscale ultrasonography to diagnose fatty liver, ARFI elastography to measure liver stiffness, and biochemical evaluation for aspartate aminotransferase (AST), alanine aminotransferase (ALT), and serum triglyceride (TG) levels...
March 2017: Journal of Ultrasound
https://www.readbyqxmd.com/read/28271231/quantitative-assessment-of-muscle-stiffness-with-acoustic-radiation-force-impulse-elastography-after-botulinum-toxin-a-injection-in-children-with-cerebral-palsy
#17
Meltem Ceyhan Bilgici, Tumay Bekci, Yasemin Ulus, Ayhan Bilgici, Leman Tomak, Mustafa Bekir Selcuk
PURPOSE: Our objective in this study was to assess the changes in medial gastrocnemius muscle (GCM) stiffness after botulinum toxin A (BTA) injection in children with cerebral palsy (CP) by using acoustic radiation force impulse (ARFI) elastography and to research the usability of this technique in clinical practice. MATERIALS AND METHODS: Twenty-four spastic lower extremities of 12 children with CP were assessed. BTA injection treatment was applied to the medial GCM...
March 7, 2017: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/28267542/comparison-between-acoustic-radiation-force-impulse-quantification-data-and-perfusion-ct-parameters-in-hepatocellular-carcinoma
#18
COMPARATIVE STUDY
Michael Esser, Sven Schneeweiß, Manuel Kolb, Mustafa Kurucay, Christer Ruff, Konstantin Nikolaou, Marius Horger
OBJECTIVE: To find out, if ultrasound elastography of hepatocellular carcinoma (HCC) can predict patterns of tumor perfusion in volume perfusion computed tomography (VPCT). MATERIAL AND METHODS: 25 consecutive patients (mean age, 68.9; range, 51-85 years) with liver cirrhosis suspected of HCC underwent VPCT and acoustic radiation force impulse (ARFI) elastography the same day. Quantitative elasticity values were registered, while blood flow (BF), blood volume (BV) and hepatic perfusion index (HPI) of the HCC lesions were calculated...
April 2017: European Journal of Radiology
https://www.readbyqxmd.com/read/28231488/the-value-of-elastpq-for-the-evaluation-of-liver-stiffness-in-patients-with-b-and-c-chronic-hepatopathies
#19
Ruxandra Mare, Ioan Sporea, Raluca Lupuşoru, Roxana Şirli, Alina Popescu, Mirela Danila, Corina Pienar
The aim of this study was to evaluate the diagnostic performance of a point shear wave elastography using ARFI technique - ElastPQ, in patients with B and C chronic hepatopathies, using Transient Elastography (TE) as the reference method, since it is a validated method for liver fibrosis assessment. SUBJECTS AND METHODS: the study included 228 consecutive subjects with chronic hepatopathies (26% HBV, 74% HCV) from whom 51% had liver cirrhosis. Liver stiffness (LS) was evaluated in the same session by means of 2 elastographic methods: TE (FibroScan, EchoSens) and ElastPQ (Affinity, Philips) techniques...
May 2017: Ultrasonics
https://www.readbyqxmd.com/read/28214021/arfi-elastography-changes-after-direct-acting-antiviral-treatment-in-transplanted-livers-with-relapse-of-hepatitis-c-virus-infection
#20
M Alfageme Zubillaga, T Fontanilla Echeveste, I Pérez González, A Royuela Vicente, A M Duca, R M Ruiz Peralbo, C González Hernando
OBJECTIVE: To evaluate the changes in the values obtained in acoustic radiation force impulse (ARFI) elastography of the liver after antiviral treatment in patients with liver transplants and hepatitis C virus (HVC) infection recurring after transplantation. MATERIAL AND METHODS: We studied 15 patients infected with HVC who had received liver transplants where an HVC infection recurring in the graft within one year after the transplant was treated with direct-acting antivirals...
March 2017: Radiología
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