Acoustic radiation force impulse (ARFI) elastography to asses maternal and foetal structures in pregnant ewes

2018 ◽  
Vol 54 (3) ◽  
pp. 498-505 ◽  
Author(s):  
Priscila D. A. Silva ◽  
Ricardo Andrés R. Uscategui ◽  
Victor J. C. Santos ◽  
Augusto R. Taira ◽  
Renata S. G. Mariano ◽  
...  
Keyword(s):  
Acoustic Radiation ◽  
Radiation Force ◽  
Acoustic Radiation Force ◽  
Acoustic Radiation Force Impulse ◽  
Arfi Elastography

Evaluation of acoustic radiation force impulse (ARFI) elastography as non-invasive diagnostic tool in living donor liver transplantation

2018 ◽  
Vol 44 (2) ◽  
pp. 464-472 ◽  
Author(s):  
Hanan Abdelhaleem ◽  
Hadeel Gamal Eldeen ◽  
Mohammed Mahmoud Nabeel ◽  
Reham Abdelmoniem ◽  
Wafaa Elakel ◽  
...  
Keyword(s):  
Living Donor ◽  
Living Donor Liver Transplantation ◽  
Acoustic Radiation ◽  
Radiation Force ◽  
Acoustic Radiation Force ◽  
Acoustic Radiation Force Impulse ◽  
Donor Liver ◽  
Donor Liver Transplantation ◽  
Non Invasive ◽  
Arfi Elastography

scholarly journals Acoustic Radiation Force Impulse (ARFI) Elastography in Autoimmune and Cholestatic Liver Diseases

2019 ◽  
Vol 18 (1) ◽  
pp. 23-29 ◽  
Author(s):  
Ruediger S. Goertz ◽  
Luise GaBmann ◽  
Deike Strobel ◽  
Dane Wildner ◽  
Barbara Schellhaas ◽  
...  
Keyword(s):  
Liver Diseases ◽  
Acoustic Radiation ◽  
Radiation Force ◽  
Acoustic Radiation Force ◽  
Acoustic Radiation Force Impulse ◽  
Arfi Elastography

Performance of Acoustic Radiation Force Impulse Elastography for Staging Liver Fibrosis in Patients With Chronic Hepatitis C After Viral Eradication

2019 ◽  
Vol 70 (1) ◽  
pp. 114-122 ◽  
Author(s):  
Sheng-Hung Chen ◽  
Hsueh-Chou Lai ◽  
I-Ping Chiang ◽  
Wen-Pang Su ◽  
Chia-Hsin Lin ◽  
...  
Keyword(s):  
Chronic Hepatitis ◽  
Hepatitis C ◽  
Liver Fibrosis ◽  
Chronic Hepatitis C ◽  
Acoustic Radiation ◽  
Radiation Force ◽  
Acoustic Radiation Force ◽  
Acoustic Radiation Force Impulse ◽  
Viral Eradication ◽  
Arfi Elastography

Abstract Background Data on noninvasive liver fibrosis staging after viral eradication are unclear. This histology-based study validated the performance of liver stiffness (LS) measurements after viral eradication. Methods Consecutive participants with chronic hepatitis C (CHC) who received concomitant LS measurements through acoustic radiation force impulse (ARFI) elastography and percutaneous liver biopsy were prospectively screened and analyzed. Results Of the 644 patients, 521 (80.9%) underwent a biopsy at treatment baseline, and the remaining 123 (19.1%) underwent a biopsy at 3 years (median; interquartile range, 0.1) after the sustained virological response (SVR) to pegylated interferon–based and direct-acting antiviral treatments. The proportions of histological fibrosis stages did not differ significantly between the pretreatment and post-SVR groups (P = .0615). However, the LS values differed significantly (P < .0001). The median LS values (presented as shear wave velocities in meters per second) were 1.51 (0.92) for the pretreatment group and 1.22 (0.77) for the post-SVR group. The cutoffs (areas under the receiver operating characteristic curve, obtained using the bootstrap method) to dichotomize between METAVIR fibrosis stage F1 versus stages F2–F4, F1–F2 versus F3–F4, and F1–F3 versus F4 were 1.47 (0.8333, 95% confidence interval [CI] 0.7981–0.8663), 1.81 (0.8763, 95% CI 0.8376–0.9107), and 1.86 (0.8811, 95% CI 0.8378–0.9179) in the pretreatment group, respectively, and 1.22 (0.7872, 95% CI 0.7001–0.8624), 1.59 (0.8808, 95% CI 0.8034–0.9422), and 1.75 (0.9018, 95% CI 0.8201–0.9644) in the post-SVR group, respectively. Conclusions The performance of LS measurements through ARFI elastography is promising to determine the liver fibrosis stage on necroinflammation-resolved histology in CHC after viral eradication.

PWE-124 Role of acoustic radiation force impulse (arfi) elastography in non-invasive assessment of liver fibrosis in iron overload: a single centre experience

Gut ◽  
2015 ◽  
Vol 64 (Suppl 1) ◽  
pp. A267.1-A267
Author(s):  
A Saifuddin ◽  
M Jagtiani ◽  
P Tadrous ◽  
P Bassett ◽  
P Shorvon ◽  
...  
Keyword(s):  
Liver Fibrosis ◽  
Acoustic Radiation ◽  
Radiation Force ◽  
Acoustic Radiation Force ◽  
Acoustic Radiation Force Impulse ◽  
Single Centre ◽  
Non Invasive ◽  
Single Centre Experience ◽  
Arfi Elastography

Acoustic radiation force impulse (ARFI) elastography of the bowel wall as a possible marker of inflammatory activity in patients with Crohn's disease

2018 ◽  
Vol 73 (7) ◽  
pp. 678.e1-678.e5 ◽  
Author(s):  
R.S. Goertz ◽  
C. Lueke ◽  
D. Wildner ◽  
F. Vitali ◽  
M.F. Neurath ◽  
...  
Keyword(s):  
Crohn’S Disease ◽  
Crohn's Disease ◽  
Bowel Wall ◽  
Acoustic Radiation ◽  
Radiation Force ◽  
Acoustic Radiation Force ◽  
Acoustic Radiation Force Impulse ◽  
Inflammatory Activity ◽  
Arfi Elastography

scholarly journals Acoustic radiation force impulse (ARFI) elastography compared with biopsy for evaluating hepatic fibrosis after liver transplantation: a cross-sectional diagnostic study

2016 ◽  
Vol 134 (6) ◽  
pp. 513-518 ◽  
Author(s):  
Joel Schmillevitch ◽  
◽  
Maria Cristina Chammas ◽  
Vincenzo Pugliese ◽  
Edson Abdala ◽  
...  
Keyword(s):  
Liver Transplantation ◽  
Hepatitis C ◽  
Acoustic Radiation ◽  
Radiation Force ◽  
Acoustic Radiation Force ◽  
Acoustic Radiation Force Impulse ◽  
Diagnostic Study ◽  
Cross Sectional ◽  
Significant Difference ◽  
Arfi Elastography

ABSTRACT CONTEXT AND OBJECTIVE: Biopsies are used after liver transplantation to evaluate fibrosis. This study aimed to evaluate the elasticity of transplanted livers by means of a non-invasive examination, acoustic radiation force imaging (ARFI) elastography, correlating the results with the histological analysis. DESIGN AND SETTING: Cross-sectional study in a public university hospital. METHODS: All patients consecutively operated between 2002 and 2010 with an indication for biopsy were evaluated by means of elastography. The radiologist evaluating ARFI and the pathologist doing anatomopathological examinations were blinded to each other's evaluations. RESULTS: During the study period, 33 patients were included. The indication for transplantation was cirrhosis due to hepatitis C in 21 cases (63%). Liver biopsies showed absence of fibrosis (F0) in 10 patients, F1 in 11, F2 in 8 and F3 in 4. There were no cases of F4 (cirrhosis). The difference in ARFI values (degree of fibrosis) was 0.26 (95% confidence interval, CI: 0.07-0.52) between the groups F0-F1 and F2-F4 (P = 0.04). An area under the curve of 0.74 (CI: 0.55-0.94) and a cutoff of 1.29 m/s between the groups resulted in the best relationship between sensitivity and specificity. Sensitivity (0.66; CI: 0.50-0.83) was lower than specificity (0.85; CI: 0.72-0.97). There was no significant difference in ARFI between patients with hepatitis C and those with other diseases. CONCLUSIONS: The values obtained from elastography were not affected by inflammatory reaction or anatomical alterations. A cutoff point of 1.29 m/s separating patients with or without significant fibrosis was identified.

Acoustic radiation force impulse (ARFI) elastography for detection of renal damage in children

2014 ◽  
Vol 45 (1) ◽  
pp. 55-61 ◽  
Author(s):  
Cemil Göya ◽  
Cihad Hamidi ◽  
Aydın Ece ◽  
Mehmet Hanifi Okur ◽  
Bekir Taşdemir ◽  
...  
Keyword(s):  
Renal Damage ◽  
Acoustic Radiation ◽  
Radiation Force ◽  
Acoustic Radiation Force ◽  
Acoustic Radiation Force Impulse ◽  
Arfi Elastography
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