scholarly journals Contrast-Enhanced Ultrasound Examination for the Assessment of Renal Perfusion in Cats with Chronic Kidney Disease

2017 ◽  
Vol 32 (1) ◽  
pp. 260-266 ◽  
Author(s):  
E. Stock ◽  
D. Paepe ◽  
S. Daminet ◽  
E. Vandermeulen ◽  
L. Duchateau ◽  
...  
2019 ◽  
Vol 22 (4) ◽  
pp. 453-460 ◽  
Author(s):  
Seokmin Jeong ◽  
Sung Bin Park ◽  
Su-Hyun Kim ◽  
Jin Ho Hwang ◽  
Jungho Shin

2021 ◽  
Vol 41 ◽  
Author(s):  
Igor C.K. da Cruz ◽  
Beatriz Gasser ◽  
Marjury Cristina Maronezi ◽  
Ricardo Andrés R. Uscategui ◽  
Marcus Antônio R. Feliciano ◽  
...  

ABSTRACT: The objective of this study was to verify the applicability of B-mode ultrasonography, ARFI elastography and CEUS in the diagnosis of chronic kidney disease and its Stages in dogs. 24 healthy dogs and 28 with CKD were included. In B-mode, the echogenicity, echotexture and cortico-medullary ratio of the kidneys were verified. By elastography, the shear-wave velocity of the cortical (SWVcort) and medullary (SWVmed) regions were determined and tissue deformity was evaluated. Wash-in, wash-out and peak enhancement (TPic) of the contrast in the renal parenchyma were calculated and homogeneity, presence of filling gaps and distinction of filling phases were evaluated by CEUS. Changes in echogenicity, echotexture and cortico-medullary ratio were observed only in sick patients. There was an increase in SWVcort in CKD, with a cutoff point >2.91m/s. Healthy kidneys were non-deformable and 25% had changes in gray scales. There was an increase in wash-in and TPic, changes in filling characteristics, filling failures and difficulty in distinguishing between the Stages in CEUS in CKD. It was found that dogs with CKD 2, 3 and 4 had greater SWVcort and wash-in values than CKD 1. Elastographic and CEUS changes were observed in dogs with CKD, demonstrating the applicability of ultrasonographic techniques in their diagnosis.


2017 ◽  
Vol 18 (1) ◽  
Author(s):  
Emily Hueywen Chang ◽  
Wui Kheong Chong ◽  
Sandeep Kumar Kasoji ◽  
Julia Rose Fielding ◽  
Ersan Altun ◽  
...  

2017 ◽  
Vol 43 ◽  
pp. S48
Author(s):  
Sung Bin Park ◽  
Eun Sun Lee ◽  
Hyun Jeong Park ◽  
Jong Beum Lee ◽  
Byung Ihn Choi

Author(s):  
Byoung Hee Han ◽  
Sung Bin Park

Background: Contrast-enhanced ultrasound (CEUS) can provide more improved images of renal blood flow and much more information of both macro- and microcirculation of the kidney as comparing to Doppler US. Objective: To investigate the usefulness of CEUS by analyzing differences in perfusion-related parameters among the three chronic kidney disease (CKD) subgroups and the control group. Methods: Thirty-eight patients with CKD and 21 controls who were age matched (20−49 years) and included. Included CKD patients were stratified into three groups according to their eGFR: group I, eGFR ≥ 60 ml/min/1.73 m2 (GFR category I and II); group II, 30 ml/min/1.73 m2 ≤ eGFR < 60 ml/min/1.73 m2 (GFR category III); and group III, eGFR < 30 ml/min/1.73 m2 (GFR category IV and V). Comparisons with the controls (eGFR > 90 ml/min/1.73 m2 ) were performed. Real-time and dynamic renal cortex imaging was performed using CEUS. Time-intensity curves and several bolus model quantitative perfusion parameters were created using the VueBox® quantification software. We compared the parameters among the CKD subgroups and between the CKD and control groups. Results: Eight patients were included in group I, 12 patients in group II, and 18 patients in group III. Significant differences were noted in the wash-in and wash-out rates between the CKD and control groups (p = 0.027 and p = 0.018, respectively), but not between those of the CKD subgroups. There were no significant differences of other perfusion parameters among the CKD subgroups and between the CKD and control groups. Conclusion: A few perfusion related CEUS parameters (WiR and WoR) can be used as markers of renal microvascular perfusion relating renal function. CEUS can effectively and quantitatively exhibit the renal microvascular perfusion in patients with CKD as well as normal control participants.


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