scholarly journals A case of gastric varices performed observing the change of hemodynamics before and after balloon-occluded retrograde transvenous obliteration(B-RTO). with reference to color Doppler ultrasonography.

Kanzo ◽  
1994 ◽  
Vol 35 (9) ◽  
pp. 696-700
Author(s):  
Takahiro SATO ◽  
Kiyoshi HIGASHINO ◽  
Yoshio MURASHIMA ◽  
Akira FUJINAGA
Keyword(s):  
Doppler Ultrasonography ◽  
Color Doppler ◽  
Gastric Varices ◽  
Color Doppler Ultrasonography ◽  
Before And After

scholarly journals Endoscopic Color Doppler Ultrasonography for Esophagogastric Varices

2012 ◽  
Vol 2012 ◽  
pp. 1-7 ◽  
Author(s):  
Takahiro Sato ◽  
Katsu Yamazaki
Keyword(s):  
Blood Flow ◽  
Doppler Ultrasonography ◽  
Color Doppler ◽  
Gastric Varices ◽  
Color Doppler Ultrasonography ◽  
Therapeutic Effects ◽  
Common Complication ◽  
Portal Venous System ◽  
Esophageal Variceal ◽  
Esophagogastric Varices

Esophagogastric varices are considered to be the most common complication in patients with portal hypertension. Endoscopic ultrasonography not only visualizes the surface of the varices but also provides detailed information about their internal structure. The direction of blood flow can be determined and its velocity measured only via endoscopic color Doppler ultrasonography (ECDUS). This can show graphically esophageal varices, paraesophageal veins, and passageways in esophageal variceal patients and gastric varices, perigastric collateral veins in gastric variceal patients. It is important to evaluate the hemodynamics of the portal venous system when treating the esophago-gastric varices. ECDUS is a useful modality for the evaluation of the detailed hemodynamics and the therapeutic effects of esophago-gastric varices.

Determination of the effect of a single hemodialysis session on retrobulbar blood hemodynamics by color Doppler ultrasonography

2007 ◽  
Vol 48 (7) ◽  
pp. 763-767 ◽  
Author(s):  
Ö. Tosun ◽  
B. Davutluoglu ◽  
K. Arda ◽  
M. Boran ◽  
A. Yarangumeli ◽  
...  
Keyword(s):  
Blood Flow ◽  
Doppler Ultrasonography ◽  
Color Doppler ◽  
Color Doppler Ultrasonography ◽  
Rank Test ◽  
Posterior Ciliary Artery ◽  
Hemodialysis Session ◽  
Paired Samples ◽  
Before And After ◽  
Ciliary Artery

Background: Retrobulbar hemodynamic alterations can occur during hemodialysis sessions, and patients with chronic renal failure may experience visual problems. Purpose: To evaluate the effect of single-session hemodialysis on retrobulbar vessel hemodynamics by color Doppler ultrasonography. Material and Methods: Thirty-five patients were included in the study. Retrobulbar blood flows were examined before and after dialysis sessions. Doppler spectral patterns of retrobulbar blood flow were evaluated. The t test for paired samples and the Wilcoxon matched-pairs signed-rank test were used for comparing the flow values before and after dialysis. Results: Systolic and diastolic blood flow velocities of the ophthalmic artery, central retinal artery, central retinal vein, nasal posterior ciliary artery, and temporal posterior ciliary artery were found to be decreased bilaterally after hemodialysis sessions. No significant change was observed in resistivity index values after hemodialysis sessions. Conclusion: Our findings reveal that retrobulbar circulation was disturbed after a single hemodialysis session.

scholarly journals Effects of Rex-bypass shunt on the cavernous transformation of the portal vein in children: evaluation by the color Doppler ultrasonography

2020 ◽  
Vol 11 (1) ◽  
Author(s):  
Zhengmin Ruan ◽  
Mei Wu ◽  
Chunchun Shao ◽  
Yuan Zhang ◽  
Caikun Zhang ◽  
...  
Keyword(s):  
Platelet Count ◽  
Portal Vein ◽  
Flow Velocity ◽  
Doppler Ultrasonography ◽  
Color Doppler ◽  
Color Doppler Ultrasonography ◽  
Cavernous Transformation ◽  
Esophagogastric Varices ◽  
Before And After ◽  
Good Patency

Abstract Background The study was to investigate the role of color Doppler ultrasonography in the evaluation of the effect of Rex-bypass shunt on the cavernous transformation of the portal vein (CTPV) in children. Methods Fifty children with symptomatic extrahepatic portal hypertension who received Rex-bypass shunt were retrospectively reviewed, and they were diagnosed with CTPV by ultrasonography. The clinical characteristics were analyzed before and after operation. Results Forty-five patients received color Doppler ultrasonography at 6 months after surgery, and good patency in the bypass vessels was displayed. The platelet count significantly increased (P < 0.001) and the esophagogastric varices were improved significantly (p < 0.001). The patency of bypass vessels on color Doppler ultrasonography was consistent with the changes in the platelet count and the degree of esophagogastric varices on gastroscopy before and after operation. The diameter of bypass vessels at 6 months was slightly larger than that at 7 days after operation, and there was no significant difference in blood flow velocity between two time points (P = 0.507). Conclusions Color Doppler ultrasonography can display the patency, diameter, and flow velocity of bypass vessels. It plays an important role in evaluating the effect of Rex-bypass shunt on the CTPV.

Use of the Ultrasonic Microprobe to Evaluate Gastric Varices –Comparison with Endoscopic Color Doppler Ultrasonography–

1997 ◽  
Vol 9 (3) ◽  
pp. 189-193 ◽  
Author(s):  
Takahiro SATO ◽  
Katsu YAMAZAKI ◽  
Jouji TOYOTA ◽  
Yoshiyasu KARINO ◽  
Takumi OMURA ◽  
...  
Keyword(s):  
Doppler Ultrasonography ◽  
Color Doppler ◽  
Gastric Varices ◽  
Color Doppler Ultrasonography

The Potential of Transabdominal 3D Color Doppler Ultrasonography for Diagnosis of Gastric Varices

2014 ◽  
Vol 48 (7) ◽  
pp. 629-634 ◽  
Author(s):  
Hitoshi Maruyama ◽  
Hidehiro Kamezaki ◽  
Masanori Takahashi ◽  
Hidehiro Okugawa ◽  
Osamu Yokosuka
Keyword(s):  
Doppler Ultrasonography ◽  
Color Doppler ◽  
Gastric Varices ◽  
Color Doppler Ultrasonography ◽  
3D Color Doppler
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