scholarly journals Saline flush during contrast medium administration

2019 ◽  
Author(s):  
Andrew Murphy
Keyword(s):  
Contrast Medium ◽  
Contrast Medium Administration

scholarly journals Contrast-enhanced computed tomography of the liver, gall bladder and urogenital tract in female red-eared terrapins (Trachemys scripta elegans)

2017 ◽  
Vol 62 (No. 12) ◽  
pp. 674-680 ◽  
Author(s):  
V. Sochorcova ◽  
P. Proks ◽  
E. Cermakova ◽  
Z. Knotek
Keyword(s):  
Computed Tomography ◽  
Gall Bladder ◽  
Contrast Medium ◽  
Bladder Wall ◽  
Post Contrast ◽  
Contrast Medium Administration ◽  
Contrast Enhanced ◽  
Enhanced Computed Tomography ◽  
Contrast Enhanced Computed Tomography ◽  
Contrast Studies

The aim of the present study was to evaluate the feasibility of contrast-enhanced computed tomography for organ morphology and perfusion in five captive terrapins. Native scans were performed and afterwards an iodinated non-ionic contrast media was manually administered through the jugular vein catheter. Post-contrast CT scans were taken 20 (T<sub>20</sub>), 60 (T<sub>60</sub>) and 180 (T<sub>180</sub>) seconds after the contrast medium administration. Maximum contrast enhancement of the kidneys and the liver was detected at T<sub>20</sub> and T<sub>60</sub>, respectively. The gall bladder content, the urinary bladder content and ovarian follicles were all without contrast enhancement in all five terrapins. Gall bladder wall thickness was 0.9 mm in all terrapins. Enhancement of the gall bladder wall in post-contrast studies was considered excellent, good or poor in two terrapins, two terrapins and one terrapin, respectively, with a mean score of 1.8 ± 0.84 over all contrast studies. Enhancement of the ureters in post-contrast studies was considered excellent in all terrapins in all contrast studies. Peak aortic enhancement was reached 20 seconds after contrast medium administration with the peak enhancement of 213.5 ± 41 HU in four terrapins and 560 HU in one terrapin. Peak hepatic vein enhancement after contrast medium administration was recorded 20 and 60 seconds in two and three terrapins, respectively. In conclusion, contrast-enhanced computed tomography proved to be a valuable method for clinical examination of the liver, gall bladder, kidneys, ureters, urinary bladder and ovarian follicles in red-eared terrapins.

Quantification of Inhomogeneities in Malignancy Grading of Non-Hodgkin Lymphoma with Mr Imaging

1993 ◽  
Vol 34 (1) ◽  
pp. 3-9 ◽  
Author(s):  
S. Rehn ◽  
G. O. Sperber ◽  
R. Nyman ◽  
B. Glimelius ◽  
H. Hagberg ◽  
...  
Keyword(s):  
Mr Imaging ◽  
Contrast Medium ◽  
Hodgkin Lymphoma ◽  
Mean Value ◽  
High Grade ◽  
Gadolinium Dtpa ◽  
Weighted Image ◽  
Non Hodgkin Lymphoma ◽  
Contrast Medium Administration ◽  
Index Value

In a previous study of 50 patients with non-Hodgkin lymphoma (NHL) it was shown that the inhomogeneous appearance of a tumor at MR imaging strongly indicated a high malignancy grade. In this study of 33 patients with NHL, the administration of an i.v. contrast medium, Gadolinium-DTPA, improved the subjective detectability of the inhomogeneities. A method of quantifying the degree of inhomogeneity in the tumors (inhomogeneity index, IH-index) was developed and tested. The mean value of IH-index in the T2-weighted image before contrast medium administration, and of the T1-weighted image after contrast medium administration, as well as the IH-index value in the T2-weighted image before contrast medium administration alone, was able to discriminate well between low- and high-grade NHL. This method of quantifying the degree of inhomogeneity in tumors improved sensitivity in detecting high-grade NHL.

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