A representative blood flow pattern in the left atrium in a preoperative patient on four-dimensional-flow magnetic resonance image. Blood flows from the right superior and inferior PV (blue) go smoothly to the left ventricle. Likewise, the blood flow from the left superior PV (green) comes into contact with the flows from the right PVs (blue) in the left atrium and subsequently goes smoothly to the left ventricle

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2020 ◽  
Vol 7 ◽  
pp. 250-250
Author(s):  
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Koji Takumi ◽  
Kazuhiro Ueda ◽  
Takuya Tokunaga ◽  
Aya Harada-Takeda ◽  
...  
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2021 ◽  
Vol 8 ◽  
pp. 356-356
Author(s):  
Tadashi Umehara ◽  
Koji Takumi ◽  
Kazuhiro Ueda ◽  
Takuya Tokunaga ◽  
Aya Harada-Takeda ◽  
...  

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pp. 917-922 ◽  
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Takashi Toyama ◽  
Hiroshi Matsuoka ◽  
...  

2016 ◽  
Vol 64 (S 01) ◽  
Author(s):  
D. Inderbitzin ◽  
M. Grapow ◽  
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O. Reuthebuch

2018 ◽  
Vol 83 (1) ◽  
pp. 130-138 ◽  
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...  

1990 ◽  
Vol 259 (2) ◽  
pp. H635-H638
Author(s):  
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R. L. Krahmer ◽  
J. L. Ferguson

Previous studies have reported significantly higher variability in coronary blood flow (CBF) measurements obtained by microsphere injection into the left ventricle (LV) as compared with microsphere injection into the left atrium (LA) of the rat. Questions have arisen concerning whether or not some of the variability may have been due to successive rather than simultaneous injections at the two sites, thereby giving measurements at different cardiovascular states. To address this question, we measured cardiac output (CO) and CBF as well as other systemic organ blood flows by employing simultaneous injection of two different sets of radiolabeled microspheres into the left atrium and left ventricle of semiconscious rats. Using this technique, CBF values (ml.min-1.g-1) of 5.45 +/- 0.43 and 5.24 +/- 0.46 for LA and LV injection sites, respectively, were measured (all values reported as means +/- SE). CO values (ml/min) of 67.5 +/- 3.5 for LA and 67.6 +/- 3.4 for LV were obtained. Paired left atrial and left ventricular measurements of CBF, CO, and other systemic organ blood flows using tracer microsphere methodology were not significantly different. All variabilities in these measurements by LA and LV injection were not significantly different. Our procedure did not significantly alter physiological parameters such as heart rate, mean arterial pressure, hematocrit, or blood gases. These findings indicate that, in our rat model, measurements made by LV microsphere injection are not only adequate for determining systemic blood flow at distal beds but provide coronary blood flow data with variability not significantly different from that of left atrial injection.


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