التفاصيل البيبلوغرافية
| العنوان: |
Improving the Visualization of the Adrenal Veins Using Virtual Monoenergetic Images from Dual-Energy Computed Tomography before Adrenal Venous Sampling. |
| المؤلفون: |
Wang, Yu, Chen, Xiaohong, Lu, Guoxiong, Su, Yun, Yang, Lingjie, Shi, Guangzi, Zhang, Fang, Zhuo, Jiayi, Duan, Xiaohui, Hu, Huijun |
| المصدر: |
Tomography: A Journal for Imaging Research; Apr2023, Vol. 9 Issue 2, p485-496, 12p |
| مصطلحات موضوعية: |
VISUALIZATION, SIGNAL-to-noise ratio, COMPUTED tomography, ADRENAL glands, STEREOLITHOGRAPHY, VEINS |
| مستخلص: |
(1) Background: This study explored the optimal energy level in advanced virtual monoenergetic images (VMI+) from dual-energy computed tomography angiography (DE-CTA) for adrenal veins visualization before adrenal venous sampling (AVS). (2) Methods: Thirty-nine patients were included in this prospective single-center study. The CT value, noise, signal-to-noise ratio (SNR) and contrast-to-noise ratio (CNR) were measured in both adrenal veins and abdominal solid organs and were then compared between VMI+ within the range of 40–80 kiloelectron volt (keV). The visualization rate of the adrenal veins and the overall image quality of solid organs were subjectively compared among different keV VMI+. The AVS success rate was recorded for 20 patients. (3) Results: For the adrenal veins, 40 keV VMI+ had the peak CT value, noise and CNR (p < 0.05). Subjectively, the visualization rate was the highest at 40 keV (100% for the right adrenal vein, and 97.4% for the left adrenal vein) (p < 0.05). For solid organs, the CT value, noise and CNR at 50 keV were lower than those at 40 keV (p < 0.05), but the SNR was similar between 40 keV and 50 keV. The overall subjective image quality of solid organs at 50 keV was the best (p < 0.05). The AVS success rate was 95%. (4) Conclusions: For VMI+, 40 keV was the preferential energy level to obtain a high visualization rate of the adrenal veins and a high success rate of AVS, while 50 keV was the favorable energy level for the depiction of abdominal organs. [ABSTRACT FROM AUTHOR] |
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| قاعدة البيانات: |
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