Densitometric measurements in coronarographic images for blood flow estimation

2004 ◽  
Author(s):  
H. Goszczynska ◽  
P. Bogorodzki ◽  
T. Wolak ◽  
R. Kurjata ◽  
M. Orzechowski
Keyword(s):  
Blood Flow ◽  
Flow Estimation

Blood Mixers for Transfusion Therapy: Blood Flow Estimation Based on PPG Technique

2020 ◽  
Author(s):  
L. Evdochim ◽  
Aleksei E. Zhdanov ◽  
Vasilii I. Borisov ◽  
D. Dobrescu ◽  
Leonid G. Dorosinsky
Keyword(s):  
Blood Flow ◽  
Transfusion Therapy ◽  
Flow Estimation

Blood flow estimation in gastroscopic true-color images

1995 ◽  
Author(s):  
Raffael S. Jacoby ◽  
Rainer Herpers ◽  
Franz M. Zwiebel ◽  
Karl-Hans Englmeier
Keyword(s):  
Blood Flow ◽  
Color Images ◽  
Flow Estimation ◽  
True Color

Reproducibility of renal blood flow estimation in the miniature pig using 99Tcm-DTPA

1991 ◽  
Vol 12 (8) ◽  
pp. 733-740 ◽  
Author(s):  
J. P. KELLEHER ◽  
P. BRZESKI ◽  
P. J. ANDERSON ◽  
I. GORDON ◽  
M. E. SNELL
Keyword(s):  
Blood Flow ◽  
Renal Blood Flow ◽  
Miniature Pig ◽  
Flow Estimation

73. Blood flow estimation with copper (II)-pyruvaldehyde bis(N-4-methylthiosemicarbazone) and PET

1994 ◽  
Vol 15 (4) ◽  
pp. 245
Author(s):  
H. Young ◽  
P. Carnochan ◽  
J. Zweit ◽  
R. J. Ott
Keyword(s):  
Blood Flow ◽  
Flow Estimation

Volume blood flow estimation in the normal and growth-restricted fetus

2002 ◽  
Vol 28 (9) ◽  
pp. 1107-1113 ◽  
Author(s):  
Helena Gardiner ◽  
Jana Brodszki ◽  
Anders Eriksson ◽  
Karel Marl
Keyword(s):  
Blood Flow ◽  
Flow Estimation ◽  
Volume Blood ◽  
Volume Blood Flow

scholarly journals Quantitative Portal Vein Velocity of Liver Cancer Patients with Transcatheter Arterial Chemoembolization on Angiography

2012 ◽  
Vol 2012 ◽  
pp. 1-7 ◽  
Author(s):  
Yung-Jen Ho ◽  
Mu-Bai Chang ◽  
Yang-Hsien Lin ◽  
Chun-Hsu Yao ◽  
Tzung-Chi Huang
Keyword(s):  
Hepatocellular Carcinoma ◽  
Blood Flow ◽  
Portal Vein ◽  
Flow Distribution ◽  
Quantitative Information ◽  
Flow Estimation ◽  
Optical Flow Method ◽  
The Relationship ◽  
Tace Treatment ◽  
Arterial Chemoembolization

Objective. We applied optical flow method (OFM) to quantify relative velocities of blood flow using digital subtraction angiography (DSA) in the vascular analysis of hepatocellular carcinoma (HCC) patients who underwent transarterial chemoembolization (TACE) treatment.Methods. A total of 40 HCC patients treated by TACE were analyzed in this study. DSA imaging with a 12-inch field of view, 1024 × 1024 pixels and 4 frames/second was acquired. OFM developed for motion estimation is applied for blood flow estimation. Two acrylic phantoms were built to validate the method.Results. The relationship between the OFM and Doppler measurements was found linear withR2=0.99for both straight and curved tube phantoms. Quantitative blood flow distribution images of the portal vein region were presented. After TACE, the minimum, maximum and mean velocities in the portal vein all decreased (P<0.05). Additionally, the velocity in the portal vein is significantly lower with a higher Child-Pugh score (P<0.01).Conclusions. The present technique provides add-on quantitative information of flows to DSA and the hemodynamic analysis in relative quantifications of blood flow in portal vein of hepatocellular carcinoma patients using DSA.

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