Evaluation of the alternate blood FLow in esophageal variceal patients by endoscopic color Doppler ultrasonography

2004 ◽  
Vol 16 (3) ◽  
pp. 208-212 ◽  
Author(s):  
Takahiro Sato ◽  
Katsu Yamazaki ◽  
Jouji Toyota ◽  
Yoshiyasu Karino ◽  
Takumi Ohmura ◽  
...  
2012 ◽  
Vol 2012 ◽  
pp. 1-7 ◽  
Author(s):  
Takahiro Sato ◽  
Katsu Yamazaki

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.


2020 ◽  
Vol 27 (2) ◽  
pp. 177-183
Author(s):  
Mine Karahan ◽  
Deniz Kilic ◽  
Mehmet Emin Dursun ◽  
Birgül Dursun ◽  
Aslı Uğurlu ◽  
...  

2003 ◽  
Vol 13 (4) ◽  
pp. 510-514 ◽  
Author(s):  
J. L. Alcázar ◽  
G. Castillo ◽  
M. Jurado ◽  
G. LÓPEZ-GARCÍA

The objective of this study was to evaluate whether intratumoral blood flow as assessed by transvaginal color Doppler ultrasonography (TVCD) correlates with some tumor features in cervical cancer. Clinical, sonographic, and histologic data on 49 women (mean age: 50.3 years, range: 25–85 years) diagnosed as having a carcinoma from the uterine cervix were reviewed. Intratumoral blood flow was assessed by TVCD in all cases. Subjective impression of the amount of flow (scanty, moderate, or abundant) as well as the lowest resistance index (RI) and highest peak systolic velocity (PSV, cm/s) were used for analysis. These data were correlated with some tumoral features such as histologic type, histologic grade, tumor volume, and tumor stage. Intratumoral blood flow was found in all cases. Abundant blood flow was found more frequently in squamous carcinoma, moderately or poorly differentiated tumors, tumors with larger volume, and advanced stage tumors (P < 0.0001). Significantly lower RI was found in moderately or poorly differentiated tumors and advanced stage tumors (P < 0.01) and significantly higher PSV was found in moderately or poorly differentiated tumors, tumors with larger volume, and advanced stage tumors (P < 0.01). No correlation was found between RI and PSV and histologic type. Our data indicate that intratumoral blood flow as assessed by TVCD correlates well with some tumor features in cervical cancer.


2016 ◽  
Vol 13 (4) ◽  
pp. 762-771 ◽  
Author(s):  
S. G. S. de Tarso ◽  
G. M. Ishak ◽  
G. D. A. Gastal ◽  
S. T. Bashir ◽  
M. O. Gastal ◽  
...  

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