Non-invasive contrast enhanced ultrasound for quantitative assessment of tumor microcirculation. Contrast mixed mode examination vs. only contrast enhanced ultrasound examination

2010 ◽  
Vol 46 (2-3) ◽  
pp. 149-158 ◽  
Author(s):  
P.M. Paprottka ◽  
C.C. Cyran ◽  
P. Zengel ◽  
J. von Einem ◽  
B. Wintersperger ◽  
...  
Keyword(s):  
Mixed Mode ◽  
Quantitative Assessment ◽  
Ultrasound Examination ◽  
Contrast Enhanced Ultrasound ◽  
Non Invasive ◽  
Contrast Enhanced ◽  
Tumor Microcirculation

scholarly journals Vascular targeting tumor therapy: Non-invasive contrast enhanced ultrasound for quantitative assessment of tumor microcirculation

2010 ◽  
Vol 9 (10) ◽  
pp. 794-802 ◽  
Author(s):  
Martin Dr. Eichhorn ◽  
Laura Klotz ◽  
Siiri Luedemann ◽  
Sebastian Strieth ◽  
Axel Kleespies ◽  
...  
Keyword(s):  
Quantitative Assessment ◽  
Tumor Therapy ◽  
Vascular Targeting ◽  
Contrast Enhanced Ultrasound ◽  
Non Invasive ◽  
Contrast Enhanced ◽  
Tumor Microcirculation

A novel use of contrast-enhanced ultrasound in uterine artery embolization

2020 ◽  
Vol 4 ◽  
pp. 8
Author(s):  
Jemianne Bautista Jia ◽  
Eric Mastrolonardo ◽  
Mateen Soleman ◽  
Ilya Lekht
Keyword(s):  
Uterine Artery Embolization ◽  
Uterine Artery ◽  
Imaging Modality ◽  
Cost Effective ◽  
Contrast Enhanced Ultrasound ◽  
Artery Embolization ◽  
Non Invasive ◽  
Contrast Enhanced

Contrast-enhanced ultrasound (CEUS) is a cost-effective, quick, and non-invasive imaging modality that has yet to be incorporated in uterine artery embolization (UAE). We present two cases that demonstrate the utility of CEUS in UAE for the identification of uterine-ovarian collaterals which otherwise can result in ineffective fibroid treatment and non-target embolization.

MO336RENAL CONTRAST-ENHANCED ULTRASOUND (CEUS) TO EVALUATE EARLY AND CHRONIC MODIFICATIONS OF RENAL PERFUSION AND TO PREDICT RENAL DYSFUNCTION AFTER RENAL ISCHEMIA-REPERFUSION IN MICE

2021 ◽  
Vol 36 (Supplement_1) ◽  
Author(s):  
Maxime Schleef ◽  
Delphine Baetz ◽  
Christelle Leon ◽  
Bruno Pillot ◽  
Gabriel Bidaux ◽  
...  
Keyword(s):  
Renal Function ◽  
Ischemia Reperfusion ◽  
Renal Perfusion ◽  
Renal Ischemia ◽  
Renal Ultrasound ◽  
Mechanical Index ◽  
Contrast Enhanced Ultrasound ◽  
Serum Urea ◽  
Non Invasive ◽  
Contrast Enhanced

Abstract Background and Aims Renal ischemia-reperfusion can lead to acute kidney injury (AKI), increasing the risk of developing chronic kidney disease (CKD) through inflammation and vascular lesions. Serum urea or creatinine level routinely used as diagnostic indices of renal function are always delayed from the onset of the disease. Therefore, we currently lack reliable markers to early detect AKI, especially in animals. We aimed to show that non-invasive renal contrast-enhanced ultrasound (CEUS) could be a reliable tool to assess early and chronic changes of renal perfusion after renal ischemia-reperfusion. Method Male C57BL6 mice underwent 15 minutes of unilateral renal ischemia by clamping of the left renal vascular pedicle (n = 7), or a sham procedure (n = 3), under inhaled general anesthesia by Sevoflurane. A renal ultrasound was performed on the left ischemic kidney at baseline 1 week before the surgery, then, 20 minutes after reperfusion to assess early modifications of renal perfusion, and 1 month after reperfusion to follow chronic modifications. CEUS was performed in supine position by using a high-resolution ultrasonic imaging system (VEVO 3100 Fujifilm Visualsonics, Toronto, Canada) with a MX550D probe fixed in place with an iron support, ensuring the constant imaging plane throughout acquisition. First, a continuous infusion of microbubbles (VS-11913, Fujifilm Visualsonics, Toronto, Canada) was done through the tail vein, then a high mechanical index burst was given to destroy microbubbles when the contrast enhancement had reached a steady state, and finally, low mechanical-index imaging mode was used until, and 30 sec after the contrast agent concentration reached the plateau. Images were recorded and were analyzed using the “destruction-replenishment” fitting model of the Vevo LAB software (Fujifilm Visualsonics, Toronto, Canada). Renal perfusion was estimated by the total renal Blood Volume (rBV) parameter and was expressed as percentage of the baseline value for each animal. Renal function was also assessed by serum urea concentration 1 month after reperfusion, and the long axis lengths of both the kidneys were measured ex vivo after the mice were euthanized. Results Renal perfusion of the ischemic kidney measured by CEUS was significantly decreased as soon as 20 minutes of reperfusion compared to baseline (median 28,8% of baseline value; interquartiles [20,1 – 69,8%]). 1 month after reperfusion, renal perfusion recovered partially but was still significantly decreased compared to baseline (median 79,9% of baseline value; interquartiles [52,8 – 99,9%]) (Figure A). In sham operated mice, renal perfusion did not differ from baseline at 20 minutes or 1 month (p > 0.05). The renal function, assessed by serum urea, was mildly but significantly impaired 1 month after ischemia-reperfusion compared with sham (median serum urea 9,8 vs. 7,6 mmol/L) (p = 0.02), and this was consistent with the observed kidney atrophy in the ischemic group when compared to the contralateral kidney (median long axis length 7,5 vs 10,8 mm) (p = 0.03). Moreover, the decrease of renal perfusion 20 minutes after reperfusion was significantly correlated with the impairment of renal perfusion 1 month after reperfusion (Pearson r = 0.836, p = 0.005) and with the serum urea level at 1 month (Pearson r = -0.710, p = 0.03) (Figure B-C). Conclusion Renal CEUS was able to detect early impairment of renal perfusion as soon as 20 minutes after 15 minutes of renal ischemia in mice, and perfusion was still decreased 1 month after reperfusion, compared to baseline. This early impairment of perfusion was correlated with the chronic decrease of renal perfusion and renal function 1 month after reperfusion. This was also associated with a significant kidney atrophy. CEUS is an interesting non-invasive tool to assess renal lesions dynamically after ischemia-reperfusion.

SAT-409-Hepatic vein arrival time assessed by contrast-enhanced ultrasound in the non-invasive evaluation of portal hypertension

2019 ◽  
Vol 70 (1) ◽  
pp. e813
Author(s):  
Irene Andaluz ◽  
Marta Abadía ◽  
Dolores Ponce ◽  
María Luisa Montes ◽  
Teresa Hernández ◽  
...  
Keyword(s):  
Portal Hypertension ◽  
Hepatic Vein ◽  
Arrival Time ◽  
Contrast Enhanced Ultrasound ◽  
Non Invasive ◽  
Contrast Enhanced ◽  
Invasive Evaluation

Influence of ageing on quantitative contrast-enhanced ultrasound of the kidneys in healthy cats

2018 ◽  
Vol 182 (18) ◽  
pp. 515-515 ◽  
Author(s):  
Emmelie Stock ◽  
Dominique Paepe ◽  
Sylvie Daminet ◽  
Luc Duchateau ◽  
Jimmy H Saunders ◽  
...  
Keyword(s):  
Blood Pressure ◽  
Area Under The Curve ◽  
Renal Perfusion ◽  
Urine Specific Gravity ◽  
Contrast Enhanced Ultrasound ◽  
Non Invasive ◽  
Peak Enhancement ◽  
Contrast Enhanced ◽  
Lower Blood ◽  
Invasive Evaluation

The degenerative effects of ageing on the kidneys have been extensively studied in humans. However, only recently interest has been focused on renal ageing in veterinary medicine. Contrast-enhanced ultrasound allows non-invasive evaluation of renal perfusion in conscious cats. Renal perfusion parameters were obtained in 43 healthy cats aged 1–16 years old, and the cats were divided in four age categories: 1–3 years, 3–6 years, 6–10 years and over 10 years. Routine renal parameters as serum creatinine, serum urea, urine-specific gravity, urinary protein:creatinine ratio and systolic blood pressure were also measured. No significant differences in any of the perfusion parameters were observed among the different age categories. A trend towards a lower peak enhancement and wash-in area under the curve with increasing age, suggestive for a lower blood volume, was detected when comparing the cats over 10 years old with the cats of 1–3 years old. Additionally, no significant age-effect was observed for the serum and urine parameters, whereas a higher blood pressure was observed in healthy cats over 10 years old.

Reproducibility of Quantitative Assessment of Altered Hepatic Hemodynamics With Dynamic Contrast-Enhanced Ultrasound

2012 ◽  
Vol 31 (9) ◽  
pp. 1413-1420 ◽  
Author(s):  
Thomas P. Gauthier ◽  
Aun Muhammad ◽  
Harpreet S. Wasan ◽  
Paul D. Abel ◽  
Edward L. S. Leen
Keyword(s):  
Quantitative Assessment ◽  
Contrast Enhanced Ultrasound ◽  
Dynamic Contrast Enhanced ◽  
Contrast Enhanced ◽  
Hepatic Hemodynamics

scholarly journals Noninvasive Contrast-enhanced US Quantitative Assessment of Tumor Microcirculation in a Murine Model: Effect of Discontinuing Anti-VEGF Therapy

Radiology ◽  
2010 ◽  
Vol 254 (2) ◽  
pp. 420-429 ◽  
Author(s):  
Aymeric Guibal ◽  
Laurent Taillade ◽  
Sébastien Mulé ◽  
Eva Comperat ◽  
Yasmina Badachi ◽  
...  
Keyword(s):  
Murine Model ◽  
Quantitative Assessment ◽  
Anti Vegf ◽  
Contrast Enhanced ◽  
Tumor Microcirculation

scholarly journals Quantitative assessment of placental perfusion by contrast-enhanced ultrasound in macaques and human subjects

2016 ◽  
Vol 214 (3) ◽  
pp. 369.e1-369.e8 ◽  
Author(s):  
Victoria H.J. Roberts ◽  
Jamie O. Lo ◽  
Jennifer A. Salati ◽  
Katherine S. Lewandowski ◽  
Jonathan R. Lindner ◽  
...  
Keyword(s):  
Quantitative Assessment ◽  
Human Subjects ◽  
Contrast Enhanced Ultrasound ◽  
Placental Perfusion ◽  
Contrast Enhanced
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