Effect of patient characteristics on vessel enhancement on arterio-venous fistula CT angiography in a retrospective cohort study

To evaluate the effects of various patient characteristics on vessel enhancement on arterio-venous fistula (AVF) computed tomography (CT) angiography (AVF-CT angiography). A total of 127 patients with suspected or confirmed shunt stenosis and internal AVF complications were considered for inclusion...

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Bibliographic Details
Published in:Medicine (Baltimore) 2023-03, Vol.102 (12), p.e33328-e33328
Main Authors: Masuda, Takanori, Nakaura, Takeshi, Funama, Yoshinori, Sato, Tomoyasu, Masuda, Shouko, Yoshiura, Takayuki, Gotanda, Rumi, Arao, Keiko, Imaizumi, Hiromasa, Arao, Shinichi, Ono, Atsushi, Hiratsuka, Junichi, Awai, Kazuo
Format: Article
Language:English
Subjects:
Angiography - methods
Body Weight
Computed Tomography Angiography - methods
Contrast Media
Fistula
Humans
Observational Study
Radiation Dosage
Retrospective Studies
Tomography, X-Ray Computed - methods
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Summary:To evaluate the effects of various patient characteristics on vessel enhancement on arterio-venous fistula (AVF) computed tomography (CT) angiography (AVF-CT angiography). A total of 127 patients with suspected or confirmed shunt stenosis and internal AVF complications were considered for inclusion in a retrospective cohort study. The tube voltage was 120 kVp, and the tube current was changed from 300 to 770 mA to maintain the image quality (noise index14) using automatic tube current modulation. To evaluate the effects of age, sex, body size, and scan delay on the CT number of the brachial artery or vein, we used correlation coefficients and multivariate regression analyses. There was a significant positive correlation between the CT number of the brachial artery or vein and age (R = 0.21 or 0.23, P 
ISSN:0025-7974
1536-5964
DOI:10.1097/MD.0000000000033328