scholarly journals Shear wave elastography in chronic kidney disease: a pilot experience in native kidneys

2015 ◽  
Vol 16 (1) ◽  
Author(s):  
Anthony E. Samir ◽  
Andrew S. Allegretti ◽  
Qingli Zhu ◽  
Manish Dhyani ◽  
Arash Anvari ◽  
...  
Keyword(s):  
Chronic Kidney Disease ◽  
Kidney Disease ◽  
Shear Wave ◽  
Shear Wave Elastography ◽  
Pilot Experience

scholarly journals Renal shear wave elastography for the assessment of nephron hypertrophy: a cross-sectional study in chronic kidney disease

2018 ◽  
Vol 45 (4) ◽  
pp. 571-576 ◽  
Author(s):  
Takuji Iyama ◽  
Tomoaki Takata ◽  
Masahiko Koda ◽  
Satoko Fukuda ◽  
Shotaro Hoi ◽  
...  
Keyword(s):  
Chronic Kidney Disease ◽  
Kidney Disease ◽  
Shear Wave ◽  
Shear Wave Elastography ◽  
Cross Sectional Study ◽  
Sectional Study ◽  
Cross Sectional

scholarly journals Renal Ultrasound Elastography: A Review of the Previous Reports on Chronic Kidney Diseases

2021 ◽  
Vol 11 (20) ◽  
pp. 9677
Author(s):  
Takuji Iyama ◽  
Takaaki Sugihara ◽  
Tomoaki Takata ◽  
Hajime Isomoto
Keyword(s):  
Chronic Kidney Disease ◽  
Renal Function ◽  
Kidney Disease ◽  
Shear Wave ◽  
Malignant Tumors ◽  
Interstitial Fibrosis ◽  
Kidney Diseases ◽  
Shear Wave Elastography ◽  
Ultrasound Elastography ◽  
Renal Ultrasound

The early detection of a kidney injury is essential to protect against the progression of kidney damage owing to the progressive nature of chronic kidney disease. A renal biopsy is the gold standard for the assessment of pathological alterations such as interstitial fibrosis and glomerulosclerosis. However, there are concerns regarding potential complications including bleeding and a reduction in renal function. Ultrasound elastography is an ideal modality for assessing the alterations in various organs and diagnosing malignant tumors. This technique has the potential to help detect early changes in renal function and pathological alterations. However, the careful application and interpretation of this technique in the kidney is required because of its complex hemodynamics and architecture. Shear wave elastography is the most widely investigated technique among ultrasound elastography. This review aims to summarize the previous investigations of the kidney using shear wave elastography, particularly for renal malignancy, kidney transplantation, and chronic kidney disease. Additionally, we have highlighted the influencing factors concerning the practical measurement of renal elasticity.

Measurements of renal shear wave velocities in chronic kidney disease patients

2017 ◽  
Vol 59 (7) ◽  
pp. 884-890 ◽  
Author(s):  
Yutaka Sasaki ◽  
Yoshiki Hirooka ◽  
Hiroki Kawashima ◽  
Takuya Ishikawa ◽  
Kyosuke Takeshita ◽  
...  
Keyword(s):  
Chronic Kidney Disease ◽  
Renal Function ◽  
Kidney Disease ◽  
Shear Wave ◽  
Interstitial Fibrosis ◽  
Left Kidney ◽  
Shear Wave Elastography ◽  
University Hospital ◽  
Success Rates ◽  
The Right

Background Chronic kidney disease (CKD) patients have advanced glomerulosclerosis and renal interstitial fibrosis. Shear wave elastography (SWE) is useful to diagnose liver fibrosis. However, there are few data available regarding evaluation of kidney function on the use of SWE. Purpose To assess the utility of SWE by evaluating the correlation between renal function and renal elasticity using SWE. Material and Methods A total of 187 participants who had available serum creatinine levels and also underwent SWE of the kidney using a transabdominal ultrasonography were recruited at Nagoya University Hospital. We measured the depth of the shear wave (SW) in the right and left kidneys and calculated the measurement success rates. The glomerular filtration rate (GFR) classification and shear wave value (SWV) were compared. Results The success rates of the right and left kidneys were 93.6% and 71.6%, respectively. Based on these results, the correlation between GFR classification and SWV were analyzed in only the right kidneys because the success rates and the number of enrolled patients were low for the left kidney. There were significant differences found between G1 and G3a, G2 and G3a, G3a and G3b, G3a and G4, and G3a and G5. SWV significantly negatively and positively correlated with the G2–G3a and G3a–G3b classifications. Conclusion There is no correlation between renal function and SW. However, we can diagnose the progression to the CKD stages G3a and G3b by observing the changes over time using the SWV.

scholarly journals Shear Wave Elastography in Diagnosing Secondary Hyperparathyroidism

Diagnostics ◽  
2019 ◽  
Vol 9 (4) ◽  
pp. 213 ◽  
Author(s):  
Laura Cotoi ◽  
Florin Borcan ◽  
Ioan Sporea ◽  
Dana Amzar ◽  
Oana Schiller ◽  
...  
Keyword(s):  
Chronic Kidney Disease ◽  
Kidney Disease ◽  
Secondary Hyperparathyroidism ◽  
Parathyroid Gland ◽  
Shear Wave ◽  
Shear Wave Elastography ◽  
Parathyroid Glands ◽  
Normal Thyroid ◽  
End Stage ◽  
Thyroid Parenchyma

This study evaluates the diagnostic value of two-dimensional shear wave elastography (2 D-SWE) technique in the evaluation of hyperplastic parathyroid glands in cases with secondary and tertiary hyperparathyroidism. A total of 59 patients (end-stage renal disease, under supplemental dialysis program) with visible parathyroid hyperplastic glands on ultrasound, confirmed by biochemical assay and scintigraphy, were enrolled; they were examined on grayscale ultrasound and 2 D shear wave elastography. We determined the elasticity index (EI) in the parathyroid gland, thyroid parenchyma and surrounding muscles, and the elasticity ratio of hyperplastic parathyroid glands compared to muscle, specifically sternocleidomastoid muscle. Patients presented fibrocystic bone disease with secondary hyperparathyroidism induced by end-stage chronic kidney disease; being on prolonged chronic dialysis therapy, they had positive sestamibi scintigraphy and high values of serum parathormone (1141.04 pg/mL). Nodules placed posterior to the thyroid capsule that were cystic, had a hypoechoic aspect, and were homogenous with an independent afferent artery were found. Mean EI in the parathyroid gland was 7.83 kPa, the median value in thyroid parenchyma was 13.76 kPa, and mean muscle EI value was 15.78 kPa. The observed mean parathyroid/muscle SWE ratio was 0.5356 and the value for parathyroid/normal thyroid parenchyma was 0.5995. Using receiver operating characteristic (ROC) analysis, we found that EI below 9.74 kPa correctly identifies parathyroid tissue, with a sensitivity of 94.8%, specificity of 90.7%, and accuracy of 92.26% when compared to normal thyroid tissue. Compared with the muscle tissue, we identified that EI below 9.98 kPa has a sensitivity, specificity, and accuracy of 93.8%, 90.7%, and 91.75%, respectively. Ultrasound elastography is a helpful tool in identifying parathyroid hyperplasia in patients with chronic kidney disease. A cutoff value of 9.98 kPa can be used in 2 D-SWE for accurate diagnosis of parathyroid disease.

scholarly journals Quantitative Evaluation of Real-Time Shear-Wave Elastography under Deep Learning in Children with Chronic Kidney Disease

2022 ◽  
Vol 2022 ◽  
pp. 1-9
Author(s):  
Jie Zhang ◽  
Cuirong Duan ◽  
Xingxing Duan ◽  
Yuan Hu ◽  
Jinqiao Liu ◽  
...  
Keyword(s):  
Chronic Kidney Disease ◽  
Deep Learning ◽  
Kidney Disease ◽  
Real Time ◽  
Shear Wave ◽  
Left Kidney ◽  
Shear Wave Elastography ◽  
Control Group ◽  
The Difference ◽  
The Right

Objective. This research was to study the application value of real-time shear wave elastography (SWE) quantitative evaluation based on deep learning (DL) in the diagnosis of chronic kidney disease (CKD) in children. Methods. 60 children with pathological diagnoses of CKD were selected as a CKD group. During the same period, 45 healthy children for physical examination were selected as the control group. The application value of real-time shear-wave elastography based on DL in the evaluation of CKD in children was explored by comparing the differences between the two groups. Results. It was found that the elastic modulus values of the middle and lower parenchyma of the left kidney and right kidney in the case group were (22.02 ± 10.98) kPa and (21.99 ± 11.87) kPa, respectively, which were substantially higher compared with (4.61 ± 0.47) kPa and (4.50 ± 0.59) kPa in the control group. Young’s modulus (YM) of the middle and lower parenchyma of the left kidney in patients with CKD stages 3 to 5 was 13.27 ± 0.83, 24.21 ± 5.69, and 31.67 ± 3.82, respectively, and that of the right kidney was 17.26 ± 0.98, 26.76 ± 7.22, and 32.37 ± 4.27, respectively, and the difference was significant ( P  < 0.05). In patients with moderate and severe CKD, the YM values of the middle and lower parenchyma of the left kidney were 17.27 ± 0.83, 27.93 ± 6.49, and those of the right kidney were 17.26 ± 0.98, 29.56 ± 6.49, respectively, and the difference was statistically significant ( P  < 0.05). The serum creatinine (Scr) of the CKD group was substantially higher than that of the control group, and the estimated glomerular filtration rate (eGFR) level of the former was lower than that of the latter. However, there was no statistical difference between the YM values of the middle and lower parts of the left and right kidneys of the CKD group and the control group. Conclusion. The DL-based SWE is a new noninvasive, real-time, and quantitative detection method, which can effectively evaluate the stiffness of the kidney and help to better detect the progress of CKD as a clinical reference.

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