keyword
MENU ▼
Read by QxMD icon Read
search

Acoustic radiation force impulse

keyword
https://www.readbyqxmd.com/read/29770228/acoustic-radiation-force-impulse-arfi-elastography-in-a-cohort-of-alpha-1-antitrypsin-deficient-individuals-and-healthy-volunteers
#1
Sandra Diaz, Behrouz Mostafavi, Hanan A Tanash, Eeva Piitulainen
Background: Acoustic radiation force impulse (ARFI) elastography has been used to assess liver stiffness non-invasively. However, its usefulness in alpha-1 antitripsin-deficient (AATD) individuals is unknown. Purpose: To assess if liver fibrosis is present in a cohort of AATD individuals using ARFI elastography. Material and Methods: Eighty-three participants aged 38-39 years, except for two who were aged 40 years, underwent ultrasound elastography of the liver with ARFI technique...
April 2018: Acta Radiologica Open
https://www.readbyqxmd.com/read/29755019/the-importance-of-acoustic-radiation-force-impulse-arfi-elastography-in-the-diagnosis-and-clinical-course-of-acute-pancreatitis
#2
Muhsin Kaya, Serdar Değirmenci, Cemil Göya, Elif Tuba Tuncel, Feyzullah Uçmak, Mehmet Ali Kaplan
BACKGROUND/AIMS: Acute pancreatitis (AP) is characterized by acute inflammation of the pancreas and it has a highly variable clinical course. The aim of our study was to evaluate the value of acoustic radiation force impulse (ARFI) elastography in the diagnosis and clinical course of AP. MATERIALS AND METHODS: Consecutive patients with a diagnosis of AP (patients group) and healthy subject (control group) were prospectively enrolled to the study. Demographic features and clinical, laboratory, and radiological data were recorded...
May 2018: Turkish Journal of Gastroenterology: the Official Journal of Turkish Society of Gastroenterology
https://www.readbyqxmd.com/read/29743056/elasticity-standard-values-of-the-achilles-tendon-assessed-with-acoustic-radiation-force-impulse-elastography-on-healthy-volunteers-a-cross-section-study
#3
Jonas Wakker, Wolfgang Kratzer, Tilmann Graeter, Julian Schmidberger
BACKGROUND: To determine normal values for acoustic radiation force impulse (ARFI) shear wave elastography of the Achilles tendon. METHODS: Using the VTIQ mode with the Acuson S3000™ (Siemens Healthcare, Erlangen, Germany), we measured the shear wave velocity (SWV) in m/s and the diameter in mm of both Achilles tendons in 182 healthy volunteers. The tendon was displayed in a sagittal view with a relaxed tendon. The parameters were tested for correlations with the anthropometric data of the subjects, between the genders and different age groups, as well as information obtained from the history, such as smoking and sporting activities...
May 9, 2018: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/29710678/diagnostic-value-of-coustic-radiation-force-impulse-for-bi-rads-category-4-breast-lesions-of-different-sizes
#4
Rong Wu
OBJECTIVE: To determine the diagnostic value of combined conventional ultrasound (US) and acoustic radiation force impulse (ARFI) imaging for the differential diagnosis of BI-RADS category 4 breast lesions of different sizes. MATERIALS AND METHODS: From April 2013 to January 2015, 283 patients (with a total of 292 breast lesions) who underwent US and ARFI examination were included in this retrospective study. The SWV for the lesion and adjacent normal breast tissue were measured and the SWV ratio was calculated...
April 14, 2018: Clinical Hemorheology and Microcirculation
https://www.readbyqxmd.com/read/29698472/comparison-of-non-invasive-assessment-of-liver-fibrosis-in-patients-with-alpha1-antitrypsin-deficiency-using-magnetic-resonance-elastography-mre-acoustic-radiation-force-impulse-arfi-quantification-and-2d-shear-wave-elastography-2d-swe
#5
Rolf Reiter, Martin Wetzel, Karim Hamesch, Pavel Strnad, Patrick Asbach, Matthias Haas, Britta Siegmund, Christian Trautwein, Bernd Hamm, Dieter Klatt, Jürgen Braun, Ingolf Sack, Heiko Tzschätzsch
PURPOSE: Although it has been known for decades that patients with alpha1-antitrypsin deficiency (AATD) have an increased risk of cirrhosis and hepatocellular carcinoma, limited data exist on non-invasive imaging-based methods for assessing liver fibrosis such as magnetic resonance elastography (MRE) and acoustic radiation force impulse (ARFI) quantification, and no data exist on 2D-shear wave elastography (2D-SWE). Therefore, the purpose of this study is to evaluate and compare the applicability of different elastography methods for the assessment of AATD-related liver fibrosis...
2018: PloS One
https://www.readbyqxmd.com/read/29668308/ultrasound-elastography-in-diagnosis-and-follow-up-for-patients-with-sialolithiasis
#6
Christoph A Reichel, Teresa Vincek, Donata Gellrich, Florian Schrötzlmair, Dirk Clevert, Pamela Zengel
OBJECTIVE: This study aims to answer whether Acoustic Radiation Force Impulse Imaging (ARFI) can reasonably be employed in initial examination and follow-up during therapy in patients with sialolithiasis, one of the most common non-malignant disorders of the salivary glands. METHODS: Mechanical tissue properties of affected and contralateral healthy salivary glands were analyzed by ARFI in 129 patients with sialolithiasis. In different subgroup analyses, ARFI shear wave velocity values were compared between healthy and diseased submandibular or parotid glands, salivary glands with calculi exhibiting different sizes, as well as before and after therapy...
April 18, 2018: Dento Maxillo Facial Radiology
https://www.readbyqxmd.com/read/29660916/comparison-of-strain-and-acoustic-radiation-force-impulse-elastography-of-breast-lesions-by-qualitative-evaluation
#7
Qing Zhao, Xiao-Lei Wang, Jia-Wei Sun, Zhao-Peng Jiang, Lin Tao, Xian-Li Zhou
OBJECTIVES: To compare the diagnostic performance of conventional strain elastography (CSE) and acoustic radiation force impulse (ARFI) induced SE for qualitative assessment of breast lesions and evaluate the additional value of the two techniques combined with Breast Imaging Reporting and Data System (BI-RADS) respectively for the differentiation of benign and malignant breast lesions. METHODS: In a cohort of 110 women, the conventional ultrasound (US) features and the elasticity scores of CSE and ARFI induced SE were recorded...
April 13, 2018: Clinical Hemorheology and Microcirculation
https://www.readbyqxmd.com/read/29660903/complex-cystic-and-solid-breast-lesions-diagnostic-performance-of-conventional-ultrasound-strain-imaging-and-point-shear-wave-speed-measurement
#8
Ying Zhang, Hui-Xiong Xu, Chong-Ke Zhao, Xiao-Long Li, Xiao-Wan Bo, Ya-Ping He, Bo-Ji Liu, Dan Wang, Wei-Wei Ren
OBJECTIVE: To assess the performance of conventional high frequency ultrasound (US) and US elastography in diagnosis of complex cystic and solid breast lesions. METHODS: Ninety three lesions in 93 patients underwent conventional US and US elastography, including strain elastography, acoustic radiation force impulse (ARFI) imaging, and point shear wave speed (SWS) measurement. RESULTS: Pathological examination revealed 31 (33.3%) of the 93 lesions were malignant and the remaining 62 (66...
April 13, 2018: Clinical Hemorheology and Microcirculation
https://www.readbyqxmd.com/read/29656388/preliminary-results-of-acoustic-radiation-force-impulse-imaging-by-combined-qualitative-and-quantitative-analyses-for-evaluation-of-breast-lesions
#9
Lin Wang, Cai-Feng Wan, Jing Du, Feng-Hua Li
OBJECTIVES: The purpose of this study was to evaluate the application of a new elastographic technique, acoustic radiation force impulse (ARFI) imaging, and its diagnostic performance for characterizing breast lesions. METHODS: One hundred consecutive female patients with 126 breast lesions were enrolled in our study. After routine breast ultrasound examinations, the patients underwent ARFI elasticity imaging. Virtual Touch tissue imaging (VTI) and Virtual Touch tissue quantification (Siemens Medical Solutions, Mountain View, CA) were used to qualitatively and quantitatively analyze the elasticity and hardness of tumors...
April 15, 2018: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/29584594/acoustic-radiation-force-impulse-us-imaging-liver-stiffness-in-patients-with-chronic-hepatitis-b-with-and-without-antiviral-therapy
#10
Tung-Hung Su, Chun-Hsun Liao, Chen-Hua Liu, Kai-Wen Huang, Tai-Chung Tseng, Hung-Chih Yang, Chun-Jen Liu, Pei-Jer Chen, Ding-Shinn Chen, Jia-Horng Kao
Purpose To investigate the clinical utility and longitudinal change of acoustic radiation force impulse (ARFI) ultrasonographic (US) imaging in patients with chronic hepatitis B. Materials and Methods A retrospective cohort study of patients with chronic hepatitis B who underwent serial ARFI examinations in a tertiary referral center in Taiwan between 2012 and 2016 was conducted. The clinical information and noninvasive liver stiffness measurement tests (ARFI, Fibrosis-4 index [FIB-4], and FibroScan) were collected...
March 27, 2018: Radiology
https://www.readbyqxmd.com/read/29574913/shear-wave-elastography-to-assess-false-vocal-folds-in-healthy-adults-a-feasibility-study
#11
Jing Gao, Qiang Zhu, Chun-Xia Xia, James Shin, George Shih, Robert Min
OBJECTIVES: The aim of the study was to investigate the feasibility of using ultrasound shear wave elastography to quantify mechanical properties and movement symmetry of false vocal folds positioned in adduction and abduction. METHODS: We prospectively measured the shear wave velocity (SWV) within the bilateral false vocal folds in 10 healthy adults using acoustic radiation force impulse imaging. From a transcutaneous approach at the level of thyroid cartilage, 5 SWV measurements were obtained within each side of the false vocal folds twice in adduction and again in abduction for each participant...
March 25, 2018: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/29566548/the-role-of-arfi-elastography-to-evaluate-microstructrual-changes-of-patients-with-testicular-microlithiasis
#12
Serdar Aslan, Meltem Ceyhan Bilgici, Dilek Saglam, Mesut Ozturk
Background Testicular microlithiasis (TML) is thought to cause microstructural changes in the parenchyma of the testis, but it is difficult to demonstrate this by ultrasonography. It may be possible to evaluate microstructural changes in the testis by Acoustic Radiation Force Impulse (ARFI) elastography, which measures tissue stiffness. Purpose To assess the tissue stiffness of testicles of children with TML and to compare them with the healthy control group. Material and Methods Between November 2015 and May 2016, 25 pediatric patients with TML and 24 healthy children were enrolled in the study (mean age for TML and control group 6...
January 1, 2018: Acta Radiologica
https://www.readbyqxmd.com/read/29564950/use-of-arfi-elastography-in-the-prediction-of-placental-invasion-anomaly-via-a-new-virtual-touch-quantification-technique
#13
Numan Cim, Harun Egemen Tolunay, Baris Boza, Harun Arslan, Can Ates, İbrahim İlik, Fatih Mehmet Tezcan, Recep Yıldızhan, Hanım Guler Sahin, Alpaslan Yavuz
We aimed to evaluate the efficiency of placental elasticity in predicting a placental invasion anomaly with the Virtual Touch Quantification (VTQ) technique. Pregnant women in the third trimester with suspected placental invasion anomaly were enrolled into the research (n = 58). The placenta was evaluated and divided into three equal parts as foetal edge (inner 1/3 of placenta), maternal edge (outer 1/3 of placenta) and the central part (central 1/3 of placenta). Shear wave velocity (SWV) measurements were used in the elastographic evaluation of placentas by VTQ...
March 22, 2018: Journal of Obstetrics and Gynaecology: the Journal of the Institute of Obstetrics and Gynaecology
https://www.readbyqxmd.com/read/29549998/acoustic-radiation-force-impulse-arfi-elastography-of-the-bowel-wall-as-a-possible-marker-of-inflammatory-activity-in-patients-with-crohn-s-disease
#14
R S Goertz, C Lueke, D Wildner, F Vitali, M F Neurath, D Strobel
AIM: To evaluate acoustic radiation force impulse (ARFI) shear-wave velocities of the bowel wall in patients with Crohn's disease (CD). MATERIAL AND METHODS: ARFI shear-wave elastography was analysed within the wall of the stomach, terminal ileum, and sigmoid, and correlated with ultrasound signs of activity in CD patients both retrospectively and in a prospective cohort. RESULTS: A total of 77 retrospective and 21 prospective CD patients were included...
March 14, 2018: Clinical Radiology
https://www.readbyqxmd.com/read/29541491/role-of-acoustic-radiation-force-impulse-elastography-in-the-characterization-of-focal-solid-hepatic-lesions
#15
Harshavardhan Nagolu, Sudhakar Kattoju, Chidambaranathan Natesan, Meera Krishnakumar, Sunil Kumar
Objective: The purpose of the study is to investigate the usefulness of acoustic radiation force impulse (ARFI) elastography in the characterization of focal solid liver lesions as benign, malignant, or metastatic using ARFI two-dimensional (2D) imaging and ARFI quantification (shear wave velocities [SWVs]). Materials and Methods: Sixty lesions were included in this study. The lesions were classified into three groups: Group I included benign lesions ( n = 25), Group II included malignant lesions ( n = 27), and Group III included metastatic lesions ( n = 8)...
2018: Journal of Clinical Imaging Science
https://www.readbyqxmd.com/read/29499741/does-elasticity-of-achilles-tendon-change-after-suture-applications-evaluation-of-repair-area-by-acoustic-radiation-force-impulse-elastography
#16
Yavuz Selim Karatekin, Bedri Karaismailoglu, Gokhan Kaynak, Tahir Ogut, Atilla Suleyman Dikici, Emel Ure Esmerer, Onder Aydingoz, Huseyin Botanlioglu
BACKGROUND: Achilles tendon injuries are one of the most common tendon injuries. Surgical treatment is preferred in young and active patients. Although there are studies which evaluate the repair area with magnetic resonance imaging and ultrasonography after surgical treatment, there are very few studies which analyzes the elasticity of the tendon by quantitative methods. ARFI (acoustic radiation force impulse) elastography is a simple and non-invasive method that can quantitatively measure the elasticity of the soft tissues...
March 2, 2018: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/29480138/shear-wave-elastography-virtual-touch-tissue-quantification-of-fetal-placentas-with-a-single-umbilical-artery
#17
Harun Arslan, Harun Egemen Tolunay, Numan Cim, Barış Boza, Alpaslan Yavuz, İbrahim İlik, Hanim Guler Sahin, Recep Yildizhan
OBJECTIVE: In this study, we aimed to evaluate the elasticities of fetal placentas with a single umbilical artery using the Virtual Touch Tissue Quantification (VTTQ) technique. MATERIALS AND METHODS: Pregnant women with fetuses with a single umbilical artery (SUA) and pregnant women with fetuses having three vessel cord (3VC) at 18-22 weeks of gestation were enrolled in the research. The placentas were evaluated and divided into three equal parts as the inner 1/3 of the placenta (fetal edge), the outer 1/3 of the placenta (maternal edge) and the central 1/3 of the placenta (central part)...
February 25, 2018: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/29473337/acoustic-radiation-force-impulse-of-the-liver-after-fontan-operation-correlation-with-cardiopulmonary-exercise-test
#18
Michael V Di Maria, Lindsey Silverman, Adel K Younoszai, Mariana L Meyers, Kelley E Capocelli, Michael R Narkewicz
BACKGROUND: The current management paradigm for children with single ventricle heart disease involves a series of palliative surgeries, culminating in the Fontan operation. This physiology results in a high central venous pressure, and in the setting of single ventricle heart disease, results in hepatic injury and fibrosis over time. Fontan-associated liver disease (FALD) is universally present in this cohort, and the current gold standard for diagnosis remains biopsy. Noninvasive assessments of liver fibrosis, such as ultrasound with elastography or acoustic radiation force impulse (ARFI), has been utilized in this cohort...
February 23, 2018: Congenital Heart Disease
https://www.readbyqxmd.com/read/29463906/noninvasive-imaging-biomarker-assessment-of-liver-fibrosis-by-elastography-in-nafld
#19
REVIEW
Elliot B Tapper, Rohit Loomba
NAFLD is a global epidemic. The prevalence of NAFLD is 20-30% in North America, northern Europe, Australia, Japan, India and China. It is crucial that patients with NAFLD receive an assessment for their risk of advanced fibrosis, which increases the risk of hepatocellular carcinoma and other complications of cirrhosis. Risk stratification that is efficient, cost-effective, patient-centred and evidence-based is one of the most important issues facing clinicians who care for those with liver disease. Given patients' preference to avoid liver biopsy, noninvasive alternatives to assess liver fibrosis are in high demand...
May 2018: Nature Reviews. Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/29430763/accuracy-of-four-ultrasonography-techniques-in-predicting-histopathological-classification-of-canine-mammary-carcinomas
#20
Marcus Antonio Rossi Feliciano, Ricardo Andrés Uscategui Ramirez, Marjury Cristina Maronezi, Giovanna Serpa Maciel, Michelle Lopes Avante, Igor Luiz Salardani Senhorello, Talita Mucédola, Beatriz Gasser, Cibele Figueira Carvalho, Wilter Ricardo Russiano Vicente
Due to the importance of presurgical, noninvasive, and accurate diagnostic tools in mammary carcinoma characterization, this prospective secondary observational cohort study was designed to evaluate and compare the diagnostic accuracy of B-mode, Doppler, contrast enhancement ultrasonography, or acoustic radiation force impulse-elastography in identifying mammary carcinomas types with high degree of malignancy. A total of 246 mammary carcinomas from 141 female dogs were analyzed using B-mode, Doppler, contrast enhancement ultrasonography, and acoustic radiation force impulse ultrasonography prior to their histopathological classification according to types (simple, complex, or special) and grade (I, II, or III)...
February 11, 2018: Veterinary Radiology & Ultrasound
keyword
keyword
23785
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"