A new computer aided diagnosis system for evaluation of chronic liver disease with ultrasound shear wave elastography imaging

2016 ◽  
Vol 43 (3) ◽  
pp. 1428-1436 ◽  
Author(s):  
Ilias Gatos ◽  
Stavros Tsantis ◽  
Stavros Spiliopoulos ◽  
Dimitris Karnabatidis ◽  
Ioannis Theotokas ◽  
...  
Keyword(s):  
Liver Disease ◽  
Chronic Liver Disease ◽  
Shear Wave ◽  
Shear Wave Elastography ◽  
Computer Aided Diagnosis ◽  
Chronic Liver ◽  
Diagnosis System ◽  
Computer Aided ◽  
Aided Diagnosis

scholarly journals Comparison between shear wave elastography and serological findings for the evaluation of fibrosis in chronic liver disease

2021 ◽  
Vol 21 (86) ◽  
pp. e186-e193
Author(s):  
Mahjabeen Liaqat ◽  
◽  
Kashif Siddique ◽  
Imran Yousaf ◽  
Raham Bacha ◽  
...  
Keyword(s):  
Liver Disease ◽  
Liver Fibrosis ◽  
Diagnostic Accuracy ◽  
Chronic Liver Disease ◽  
Shear Wave ◽  
Shear Wave Elastography ◽  
Chronic Liver ◽  
Optimal Cutoff ◽  
Cutoff Value ◽  
Cutoff Values

Aim: In this study, we sought to examine the optimal cutoff values for predicting different stages of liver fibrosis, and to determine the level of agreement between shear wave elastography and aspartate aminotransferase to platelet ratio index (APRI) and fibrosis-4 index (FIB-4) scores in patients with chronic liver disease. Methodology: A descriptive, cross-sectional study was performed at the Radiology Department of Shaukat Khanum Memorial Hospital Lahore from 1 Jun 2019 until 1 June 2020. FIB-4 and APRI scores were determined by the following formula: FIB-4 = (age × AST) ÷ (platelet count × (√ (ALT)) and APRI = (AST÷AST upper limit of normal) ÷ platelet × 100. Data was analyzed with the help of SPSS version 24.0 and Microsoft Excel 2013. Results: Eighty individuals were conveniently selected, of which 62.5% were men and 37.5% were women. The mean age of the subjects was 43.47 SD ± 13.85 years. APRI and FIB-4 scores predicted F4 patients using the cutoff values of 0.47 (Sn. 72%, Sp. 70%) and 1.27 (Sn. 78%, Sp. 73%), respectively. The cutoff values of 0.46 for APRI and 1.27 for FIB-4 predicted F3–F4 patients (Sn. 74% and 77%; Sp. 76% and 76%), respectively. To predict F1–F4 compared to F0, the cutoff value was 0.34 (Sn. 68%, Sp. 75%) for APRI, while the cutoff value for FIB was 0.87 (Sn. 72%, Sp. 75%). The findings suggest that FIB-4 shows better diagnostic accuracy than APRI. Conclusion: This study provides optimal cutoff values for different groups of fibrosis patients for both serum markers. Also, the diagnostic accuracy of FIB-4 for predicting liver fibrosis was found to be superior to APRI in all disease stages.

Liver Stiffness Assessed by Ultrasound Shear Wave Elastography from General Electric Accurately Predicts Clinically Significant Portal Hypertension in Patients with Advanced Chronic Liver Disease

2019 ◽  
Vol 41 (05) ◽  
pp. 526-533
Author(s):  
Horia Stefanescu ◽  
Corina Rusu ◽  
Monica Lupsor-Platon ◽  
Oana Nicoara Farcau ◽  
Petra Fischer ◽  
...  
Keyword(s):  
Portal Hypertension ◽  
Liver Disease ◽  
Diagnostic Accuracy ◽  
Chronic Liver Disease ◽  
Shear Wave ◽  
Liver Stiffness ◽  
Shear Wave Elastography ◽  
Chronic Liver ◽  
General Electric ◽  
Clinically Significant

Abstract Purpose Clinically significant portal hypertension (CSPH) is responsible for most of the complications in patients with cirrhosis. Liver stiffness (LS) measurement by vibration-controlled transient elastography (VCTE) is currently used to evaluate CSPH. Bi-dimensional shear wave elastography from General Electric (2D-SWE.GE) has not yet been validated for the diagnosis of PHT. Our aims were to test whether 2D-SWE.GE-LS is able to evaluate CSPH, to determine the reliability criteria of the method and to compare its accuracy with that of VCTE-LS in this clinical setting. Materials and Methods Patients with chronic liver disease referred to hepatic catheterization (HVPG) were consecutively enrolled. HVPG and LS by both VCTE and 2D-SWE.GE were performed on the same day. The diagnostic performance of each LS method was compared against HVPG and between each other. Results 2D-SWE.GE-LS was possible in 123/127 (96.90 %) patients. The ability to record at least 5 LS measurements by 2D-SWE.GE and IQR < 30 % were the only features associated with reliable results. 2D-SWE.GE-LS was highly correlated with HVPG (r = 0.704; p < 0.0001), especially if HVPG < 10 mmHg and was significantly higher in patients with CSPH (15.52 vs. 8.14 kPa; p < 0.0001). For a cut-off value of 11.3 kPa, the AUROC of 2D-SWE.GE-LS to detect CSPH was 0.91, which was not inferior to VCTE-LS (0.92; p = 0.79). The diagnostic accuracy of LS by 2D-SWE.GE-LS to detect CSPH was similar with the one of VCTE-LS (83.74 % vs. 85.37 %; p = 0.238). The diagnostic accuracy was not enhanced by using different cut-off values which enhanced the sensitivity or the specificity. However, in the subgroup of compensated patients with alcoholic liver disease, 2D-SWE.GE-LS classified CSPH better than VCTE-LS (93.33 % vs. 85.71 %, p = 0.039). Conclusion 2D-SWE.GE-LS has good accuracy, not inferior to VCTE-LS, for the diagnosis of CSPH.

Assessing spleen stiffness by point shear‐wave elastography: Is it feasible and reproducible in patients with chronic liver disease? Is it useful to predict portal hypertension?

GastroHep ◽  
2019 ◽  
Vol 1 (5) ◽  
pp. 205-213 ◽  
Author(s):  
Mirella Fraquelli ◽  
Clara Benedetta Conti ◽  
Mariangela Giunta ◽  
Daniele Gridavilla ◽  
Giulia Tosetti ◽  
...  
Keyword(s):  
Portal Hypertension ◽  
Liver Disease ◽  
Chronic Liver Disease ◽  
Shear Wave ◽  
Shear Wave Elastography ◽  
Chronic Liver ◽  
Spleen Stiffness
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