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Elastography ARFI

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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/29730678/reliability-of-testicular-stiffness-quantification-using-shear-wave-elastography-in-predicting-male-fertility-a-preliminary-prospective-study
#4
Alpaslan Yavuz, Adem Yokus, Kerem Taken, Abdussamet Batur, Mesut Ozgokce, Harun Arslan
AIMS: To evaluate the reliability of testicular stiffness quantification using shear wave elastography in predicting the fertility potential of males and for the pre-diagnosis of disorders based upon sperm quantification. MATERIAL AND METHODS: One hundred males between the ages of 19-49 years (mean age of 28.77±6.11), ninety of whom with complaints of infertility, were enrolled in this prospective study. Scrotal grey-scale, Doppler ultrasound (US), and mean testicular shear wave velocity quantifications (SWVQs) were performed...
May 2, 2018: Medical Ultrasonography
https://www.readbyqxmd.com/read/29718546/improvement-of-lsm-arfi-measurements-and-non-invasive-fibrosis-markers-after-daas-for-hcv-g4-recurrence-post-living-donor-liver-transplantation-egyptian-cohort
#5
Shereen Abdel Alem, Mohamed Said, Ismail Anwar, Zeinab Abdellatif, Tamer Elbaz, Rasha Eletreby, Mahmoud AbouElKhair, Magdy El-Serafy, Sherif Mogawer, Mona El-Amir, Mostafa El-Shazly, Adel Hosny, Ayman Yosry
BACKGROUND: Progression of recurrent hepatitis C is accelerated in liver transplant (LT) recipients. Direct acting antivirals (DAAs) have recently emerged as a promising therapeutic regimen for the treatment of hepatitis C virus (HCV) infection. Rates of sustained virological response (SVR) have drastically improved since introduction of DAAs. AIM: To elucidate the changes in liver stiffness measurement (LSM) by Transient elastography (TE) as well as ARFI elastography and fibrosis scores after DAAs treatment in LT recipients with hepatitis C virus (HCV) recurrence...
May 2, 2018: Journal of Medical Virology
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
#6
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
#7
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
#8
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
#9
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/29566548/the-role-of-arfi-elastography-to-evaluate-microstructrual-changes-of-patients-with-testicular-microlithiasis
#10
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
#11
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
#12
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
#13
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
#14
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/29473337/acoustic-radiation-force-impulse-of-the-liver-after-fontan-operation-correlation-with-cardiopulmonary-exercise-test
#15
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/29400362/motion-effects-on-the-measurement-of-stiffness-on-ultrasound-shear-wave-elastography-a-moving-liver-fibrosis-phantom-study
#16
Hyun Joo Shin, Myung-Joon Kim, Choon-Sik Yoon, Kwanseop Lee, Kwan Sik Lee, Jong-Chul Park, Mi-Jung Lee, Haesung Yoon
AIMS: To evaluate the differences between shear wave velocities (SWVs) measured with ultrasound elastography during the continuous motion using liver fibrosis phantoms. MATERIALS AND METHODS: Elasticities were measured with convex and linear transducers of supersonic shear wave imaging (SSI) and acoustic radiation force impulse imaging (ARFI) using liver elasticity phantoms (3.0 and 16.9 kPa) at depths of 2, 3, 4, and 5 cm. Motion velocities were 30 and 60 rpm with the phantoms in an upright position on the Orbital shaker...
February 4, 2018: Medical Ultrasonography
https://www.readbyqxmd.com/read/29371711/achilles-tendon-elasticity-decreases-with-intermittent-claudication-in-patients-by-acoustic-radiation-force-impulse-imaging-arfi
#17
Birnur Yilmaz
OBJECTIVE: To investigate the value of Acoustic Radiation Force Impulse elastography and its application in Achilles tendon elasticity of intermittent claudication due to lower extremity arterial ischaemia. METHODS: This prospective case-control study was conducted at the Department of Radiology, Faculty of Medicine, Baskent University, Istanbul, Turkey, from October 2015 to January 2016, and comprised bilateral Achilles tendons of patients with intermittent claudication and healthy individuals...
January 2018: JPMA. the Journal of the Pakistan Medical Association
https://www.readbyqxmd.com/read/29330689/the-efficiency-of-acoustic-radiation-force-impulse-arfi-elastography-in-the-diagnosis-and-staging-of-carpal-tunnel-syndrome
#18
Harun Arslan, Alpaslan Yavuz, Ferda İlgen, Abdurrahman Aycan, Mesut Ozgokce, Hüseyin Akdeniz, Abdussamet Batur
OBJECTIVES: The aim of the present study was to quantify the stiffness of the median nerve (MN) at the carpal tunnel inlet by acoustic radiation force impulse (ARFI) elastography and to evaluate whether ARFI can be used in diagnosis and staging of carpal tunnel syndrome (CTS). METHODS: Sonographic examinations of 96 wrists in 50 patients were included in the study. The cross-sectional area and stiffness of the MN were quantitatively measured by B-mode ultrasonography (USG) and ARFI...
January 12, 2018: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/29218616/noninvasive-assessment-of-hepatic-sinusoidal-obstructive-syndrome-using-acoustic-radiation-force-impulse-elastography-imaging-a-proof-of-concept-study-in-rat-models
#19
So Hyun Park, Seung Soo Lee, Ji-Youn Sung, Kiyong Na, Hyoung Jung Kim, So Yeon Kim, Beom Jin Park, Jae Ho Byun
OBJECTIVES: To determine the feasibility of acoustic radiation force impulse (ARFI) elastography in the evaluation of hepatic sinusoidal obstruction syndrome (SOS) in rat models. METHODS: Rat SOS models of various severities were created by monocrotaline gavage (n = 40) or by intraperitoneal injection of 5-fluorouracil, leucovorin and oxaliplatin (FOLFOX) (n = 16). Liver shear-wave velocity (SWV) was measured using ARFI elastography. Liver samples were analysed for the SOS score, steatosis, lobular inflammation and fibrosis...
December 7, 2017: European Radiology
https://www.readbyqxmd.com/read/29197912/point-shear-wave-elastography-pswe-using-acoustic-radiation-force-impulse-arfi-imaging-a-feasibility-study-and-norm-values-for-renal-parenchymal-stiffness-in-healthy-children-and-adolescents
#20
Lilian Grass, Nora Szekely, Abdulsattar Alrajab, Thi Thanh Tam Bui-Ta, Georg Friedrich Hoffmann, Elke Wühl, Jens-Peter Schenk
AIMS: To evaluate the applicability of point shear wave elastography (pSWE) for measuring renal parenchymal stiffness in healthy children and adolescents and to establish norm values for shear wave speed (SWS) using two ARFI methods and ultrasound probes. MATERIAL AND METHODS: We prospectively investigated 264 children (43.9% males). pSWE (Virtual TouchTM Quantification and Virtual TouchTM Imaging Quantification (VTQ and VTIQ; Siemens, Germany)) was performed in the renal cortex of 528 healthy kidneys using a 1-6 MHz convex and a 4-9 MHz linear ultrasound probe in ventrolateral and dorsal examinations...
November 29, 2017: Medical Ultrasonography
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