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Acoustic radiation force impulse

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https://www.readbyqxmd.com/read/28624924/evaluation-of-hepatic-fibrosis-a-review-from-the-society-of-abdominal-radiology-disease-focus-panel
#1
REVIEW
Jeanne M Horowitz, Sudhakar K Venkatesh, Richard L Ehman, Kartik Jhaveri, Patrick Kamath, Michael A Ohliger, Anthony E Samir, Alvin C Silva, Bachir Taouli, Michael S Torbenson, Michael L Wells, Benjamin Yeh, Frank H Miller
Hepatic fibrosis is potentially reversible; however early diagnosis is necessary for treatment in order to halt progression to cirrhosis and development of complications including portal hypertension and hepatocellular carcinoma. Morphologic signs of cirrhosis on ultrasound (US), computed tomography (CT), and magnetic resonance imaging (MRI) alone are unreliable and are seen with more advanced disease. Newer imaging techniques to diagnose liver fibrosis are reliable and accurate, and include magnetic resonance elastography and US elastography (one-dimensional transient elastography and point shear wave elastography or acoustic radiation force impulse imaging)...
June 17, 2017: Abdominal Radiology
https://www.readbyqxmd.com/read/28621757/impact-of-virtual-touch-quantification-in-acoustic-radiation-force-impulse-for-skeletal-muscle-mass-loss-in-chronic-liver-diseases
#2
Hiroki Nishikawa, Takashi Nishimura, Hirayuki Enomoto, Yoshinori Iwata, Akio Ishii, Yuho Miyamoto, Noriko Ishii, Yukihisa Yuri, Ryo Takata, Kunihiro Hasegawa, Chikage Nakano, Kazunori Yoh, Nobuhiro Aizawa, Yoshiyuki Sakai, Naoto Ikeda, Tomoyuki Takashima, Shuhei Nishiguchi, Hiroko Iijima
BACKGROUND AND AIMS: We sought to clarify the relationship between virtual touch quantification (VTQ) in acoustic radiation force impulse and skeletal muscle mass as assessed by bio-electronic impedance analysis in patients with chronic liver diseases (CLDs, n = 468, 222 males and 246 females, median age = 62 years). PATIENTS AND METHODS: Decreased skeletal muscle index (D-SMI) was defined as skeletal muscle index (SMI) <7.0 kg/m² for males and as SMI <5...
June 16, 2017: Nutrients
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
#3
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/28583530/increased-stiffness-of-the-remnant-right-lobe-liver-after-left-lobectomy-or-lateral-segmentectomy-in-donors-of-living-donor-liver-transplantation
#4
H-K Wang, Y-C Lai, Y-H Lin, H-J Chiou, Y-H Chou
BACKGROUND: Liver stiffness is associated with the degree of fibrosis along with other factors. Abrupt change of liver perfusion after hepatectomy is one such factor. In this study, we performed ultrasound elastography to explore the stiffness of the right lobe liver before and after hepatectomy in donors who underwent resection of left lobe or lateral segment of liver. METHODS: A total of 32 left lobe liver donors (18 male and 14 female; age range, 21-55 years; mean age, 35...
June 2017: Transplantation Proceedings
https://www.readbyqxmd.com/read/28583515/acoustic-radiation-force-impulse-imaging-of-the-transplant-kidney-correlation-between-cortical-stiffness-and-arterial-resistance-in-early-post-transplant-period
#5
H-K Wang, Y-C Lai, Y-H Lin, H-J Chiou, Y-H Chou
BACKGROUND: Acoustic radiation force impulse (ARFI) imaging is a noninvasive imaging modality for quantitative assessment of tissue stiffness. This study utilized ARFI imaging to assess the stiffness of a transplant renal cortex within the first month after renal transplantation and to explore the correlation between the cortical stiffness and arterial resistance of the transplant kidney. METHODS: Forty renal transplant recipients (male/female = 26/14; mean age: 45...
June 2017: Transplantation Proceedings
https://www.readbyqxmd.com/read/28570680/the-correlation-between-her-2-expression-and-the-ceus-and-arfi-characteristics-of-breast-cancer
#6
Xiao-Yan Wang, Qiao Hu, Meng-Yuan Fang, Yan He, Hai-Ming Wei, Xue-Xue Chen, Bing Zhang
OBJECTIVE: The purpose of the present study was to explore the correlation between the contrast-enhanced ultrasound (CEUS) and acoustic radiation force impulse (ARFI) characteristics of breast cancers and the expression of human epidermal growth factor receptor 2 (HER-2). METHODS: HER-2 expression levels in the tumor masses of 167 clearly diagnosed cases of breast cancer were measured and analyzed. The enhancement features and time intensity curve (TIC) of CEUS and virtual touch tissue imaging (VTI) and virtual touch tissue quantification (VTQ) technology of ARFI were employed to analyze the relationship between HER-2 expression and the CEUS and ARFI characteristics of breast cancer...
2017: PloS One
https://www.readbyqxmd.com/read/28564643/prevent-pancreatic-fistula-after-pancreatoduodenectomy-possible-role-of-ultrasound-elastography
#7
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/28557143/liver-stiffness-reduction-correlates-with-histological-characteristics-of-hepatitis-c-patients-with-sustained-virological-response
#8
Yoshihiko Tachi, Takanori Hirai, Yuko Kojima, Yoji Ishizu, Takashi Honda, Teiji Kuzuya, Kazuhiko Hayashi, Masatoshi Ishigami, Hidemi Goto
BACKGROUND AND AIMS: We investigated the correlation between histological characteristics and changes in liver stiffness in patients with sustained virological response using acoustic radiation force impulse elastography. METHODS: In this prospective study, we enrolled 176 Hepatitis C patients with sustained virological response who underwent acoustic radiation force impulse elastography and liver biopsy before antiviral treatment, and serial acoustic radiation force impulse elastography at the end of treatment and at 24 weeks after the end of treatment...
May 30, 2017: Liver International: Official Journal of the International Association for the Study of the Liver
https://www.readbyqxmd.com/read/28542533/ultrasonography-methods-for-predicting-malignancy-in-canine-mammary-tumors
#9
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/28541023/correlation-between-biological-characteristics-of-thrombus-and-short-term-efficiency-of-thrombolytic-therapy-by-acoustic-radiation-force-impulse-imaging-technique
#10
Xiaolei Yi, Caifang Ni, Mingming Li, Qiong Wu, Yi Li
BACKGROUND: Evaluate the biological characteristics of lower extremity deep venous thrombosis by applying acoustic radiation force impulse imaging technique(ARFI), explore the correlation between the value of shear wave speed (SWV) and short-term efficacy of thrombolytic therapy as well as analyze the application value of shear wave velocity in predicting the short-term efficacy of thrombolytic therapy. METHODS: Examine acoustic radiation force impulse imaging for 120 patients with lower extremity deep venous thrombosis and measure the shear wave velocity values...
May 24, 2017: International Angiology: a Journal of the International Union of Angiology
https://www.readbyqxmd.com/read/28539240/placental-elasticity-on-patients-with-gestational-diabetes-single-institution-experience
#11
Tevfik Berk Bildacı, Halime Çevik, Güldeniz Aksan Desteli, Birnur Tavaslı, Serdinç Özdoğan
BACKGROUND: Gestational diabetes is defined as glucose intolerance which is first recognized in pregnancy. Oral glucose tolerance test (OGTT) is the cornerstone in diagnosing gestational diabetes. Placental elasticity evaluation is relatively new concept and is principally used for research purposes. We aimed to find any relation between placental elasticity evaluation and patients of gestational diabetes diagnosed by 75 g OGTT. METHODS: There were 91 patients took part in study, forming two groups as gestational diabetic patients (21 patients) and control group (70 patients)...
May 20, 2017: Journal of the Chinese Medical Association: JCMA
https://www.readbyqxmd.com/read/28527203/value-of-different-ultrasound-elastography-techniques-in-patients-with-venous-malformations-prior-to-and-after-sclerotherapy
#12
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/28514259/does-type-1-diabetes-mellitus-affect-the-shear-wave-velocity-of-the-thyroid-gland-of-children-without-autoimmune-thyroiditis
#13
Dilek Sağlam, Meltem Ceyhan Bilgici, Cengiz Kara, Gülay Can Yilmaz, Asli Tanrivermiş Sayit
OBJECTIVE: The aim of this study is to evaluate the shear wave velocity (SWV) of the thyroid gland with acoustic radiation force impulse elastography in children with type 1 diabetes mellitus (T1D). MATERIALS AND METHODS: Between November 2015 and April 2016, 35 T1D patients who were referred to our hospital's endocrinology outpatient clinic (mean age, 11.88 ± 4.1 years) and 30 children (mean age, 11.3 ± 3.08 years) in the control group were enrolled in the study...
May 16, 2017: Ultrasound Quarterly
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
#14
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/28503746/application-of-ultrasound-elastography-for-chronic-allograft-dysfunction-in-kidney-transplantation
#15
REVIEW
Zijie Wang, Haiwei Yang, Chuanjian Suo, Jifu Wei, Ruoyun Tan, Min Gu
Interstitial fibrosis is the main characteristic of chronic allograft dysfunction, which remains the key factor affecting long-term allograft survival after kidney transplantation. Ultrasound elastography (UE), including real-time elastography, transient elastography, and acoustic radiation force impulse, has been applied widely in breast, thyroid, and liver diseases, especially in the assessment of liver fibrosis. Recently, numerous studies have reported the efficacy of UE methods in evaluating renal allograft fibrosis...
May 15, 2017: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
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
#16
(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/28475023/acoustic-radiation-force-impulse-imaging-for-detection-of-liver-fibrosis-in-overweight-and-obese-children
#17
Juan D Berná-Serna, Regina Sánchez-Jiménez, Francisca Velázquez-Marín, Pilar Sainz de Baranda, Florentina Guzmán-Aroca, Carmen Fernández-Hernández, Ernesto Doménech-Abellán, Dolores Abellán-Rivero, Guadalupe Ruiz-Merino, Juan Madrid-Conesa, Manuel Canteras-Jordana
Background Acoustic radiation force impulse (ARFI) is a non-invasive alternative to a liver biopsy for the evaluation of liver fibrosis (LF). Purpose To investigate the potential usefulness of acoustic radiation force impulse ARFI for detecting LF in overweight and obese children Material and Methods A cross-sectional study was conducted in 148 schoolchildren. A diagnosis of non-alcoholic fatty liver disease (NAFLD) and LF was based on ultrasound (US) and ARFI shear wave velocity (SWV). Results The laboratory parameters were normal in all the children...
January 1, 2017: Acta Radiologica
https://www.readbyqxmd.com/read/28473066/acr-appropriateness-criteria-%C3%A2-chronic-liver%C3%A2-disease
#18
Jeanne M Horowitz, Ihab R Kamel, Hina Arif-Tiwari, Sumeet K Asrani, Nicole M Hindman, Harmeet Kaur, Michelle M McNamara, Richard B Noto, Aliya Qayyum, Tasneem Lalani
Because liver fibrosis can be treated, it is important to diagnose liver fibrosis noninvasively and monitor response to treatment. Although ultrasound (grayscale and Doppler) can diagnose cirrhosis, it does so unreliably using morphologic and sonographic features and cannot diagnose the earlier, treatable stages of hepatic fibrosis. Transient elastography, ultrasound elastography with acoustic radiation force impulse, and MR elastography are modalities that can assess for hepatic fibrosis. Although all international organizations recommend ultrasound for screening for hepatocellular carcinoma, ultrasound is particularly limited for identifying hepatocellular carcinoma in patients with obesity, nonalcoholic fatty liver disease, and nodular cirrhotic livers...
May 2017: Journal of the American College of Radiology: JACR
https://www.readbyqxmd.com/read/28471833/acoustic-radiation-force-impulse-in-the-diagnosis-of-liver-fibrosis-in-patients-with-chronic-hepatitis-b
#19
Rui Huang, Juan Xia, Yong Liu, Zhaoping Zhang, Chao Wu
No abstract text is available yet for this article.
May 3, 2017: European Journal of Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/28471822/assessment-of-liver-fibrosis-with-acoustic-radiation-force-impulse-imaging-versus-liver-histology-in-patients-with-chronic-hepatitis-c-a-pilot-study
#20
Mohamed A S Kohla, Mohamed Abbasy, Mai Abozeid, Osama El-Abd, Sameera Ezzat, Samah Kohla, Mohamed Abdel-Rahman
BACKGROUND: Acoustic radiation force impulse imaging (ARFI) involves the mechanical excitation of tissues using short-duration acoustic pulses to generate localized displacements in tissue. The displacements results in shear-wave propagation, tracked by ultrasonography (US) correlation-based methods and recorded in meters per seconds. AIM: To compare (ARFI) integrated into a conventional US with the standard histological examination of liver biopsy specimens for the assessment of liver fibrosis...
May 3, 2017: European Journal of Gastroenterology & Hepatology
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