This study aimed to investigate the potential benefit of ultra-high-resolution (UHR) photon-counting detector CT (PCD-CT) angiography in visualization of abdominal arteries in comparison to standard-reconstruction (SR) images of virtual monoenergetic images (VMI) at low kiloelectron volt (keV). We prospectively included 47 and 47 participants to undergo contrast-enhanced abdominal CT scans within UHR mode on a PCD-CT system using full-dose (FD) and low-dose (LD) protocols, respectively. The data were reconstructed into six series of images: FD_UHR_Br48, FD_UHR_Bv56, FD_UHR_Bv60, FD_SR_Bv40, LD_UHR_Bv48, and LD_SR_Bv40. The UHR reconstructions were performed with three kernels (Bv48, Bv56, and Bv60) within 0.2 mm. The SR were virtual monoenergetic imaging reconstruction with Bv40 kernel at 40-keV within 1 mm. Each series of axial images were reconstructed into coronal and volume-rendered images. The signal-to-noise ratio (SNR) and contrast-to-noise ratio (CNR) of seven arteries were measured. Three radiologists assessed the image quality, and visibility of nine arteries on all the images. SNR and CNR values of SR images were significantly higher than those of UHR images (P < 0.001). The SR images have higher ratings in image noise (P < 0.001), but the FD_UHR_Bv56 and FD_UHR_Bv60 images has higher rating in vessel sharpness (P < 0.001). The overall quality was not significantly different among FD_VMI_40keV, LD_VMI_40keV, FD_UHR_Bv48, and LD_UHR_Bv48 images (P > 0.05) but higher than those of FD_UHR_Bv56 and FD_UHR_Bv60 images (P < 0.001). There is no significant difference of nine abdominal arteries among six series of images of axial, coronal and volume-rendered images (P > 0.05). To conclude, 1-mm SR image of VMI at 40-keV is superior to 0.2-mm UHR regardless of which kernel is used to visualize abdominal arteries, while 0.2-mm UHR image using a relatively smooth kernel may allow similar image quality and artery visibility when thinner slice image is warranted.
基金：
This study has received funding by National Natural Science Foundation of China (82302183, 82271934), Yangfan Project
of Science and Technology Commission of Shanghai Municipality
(22YF1442400), Research Found of Health Commission of Changing
District, Shanghai Municipality (2023QN01), Laboratory Open Fund
of Key Technology and Materials in Minimally Invasive Spine Surgery
(2024JZWC-ZDA03, 2024JZWC-YBA07), Research Fund of Tongren Hospital, and Shanghai Jiao Tong University School of Medicine
(TRKYRC-XX202204, TRYJ2021JC06, TRYXJH18, TRYXJH28).
语种：
外文
被引次数：
WOS：
PubmedID：
第一作者：
第一作者机构：[1]Shanghai Jiao Tong Univ, Ruijin Hosp, Dept Radiol, Sch Med, Shanghai 200025, Peoples R China
共同第一作者：
通讯作者：
通讯机构：[7]Shanghai Jiao Tong Univ, Ruijin Hosp, Dept Geriatr & Surg, Sch Med, Shanghai 200025, Peoples R China[8]Shanghai Jiao Tong Univ, Med Ctr Aging, Sch Med, Ruijin Hosp, Shanghai 200025, Peoples R China
推荐引用方式(GB/T 7714)：
Zhang Huan,Xing Yue,Wang Lingyun,et al.Ultra-High-Resolution Photon-Counting Detector CT Benefits Visualization of Abdominal Arteries: A Comparison to Standard-Reconstruction[J].JOURNAL OF IMAGING INFORMATICS IN MEDICINE.2025,38(3):1891-1903.doi:10.1007/s10278-024-01232-5.
APA：
Zhang, Huan,Xing, Yue,Wang, Lingyun,Hu, Yangfan,Xu, Zhihan...&Zhong, Jingyu.(2025).Ultra-High-Resolution Photon-Counting Detector CT Benefits Visualization of Abdominal Arteries: A Comparison to Standard-Reconstruction.JOURNAL OF IMAGING INFORMATICS IN MEDICINE,38,(3)
MLA：
Zhang, Huan,et al."Ultra-High-Resolution Photon-Counting Detector CT Benefits Visualization of Abdominal Arteries: A Comparison to Standard-Reconstruction".JOURNAL OF IMAGING INFORMATICS IN MEDICINE 38..3(2025):1891-1903
