与传统计算机断层扫描血管造影术相比，评估低浓度和低流速造影剂双能计算机断层扫描的单能图像对乳腺癌乳头乳晕复合体动脉供血的图像质量。
Evaluating the Image Quality of Monoenergetic Images From Dual-Energy Computed Tomography With Low-Concentration and Low-Flow-Rate Contrast Media for the Arterials Supply to the Nipple-Areola Complex in Breast Cancer Compared With Conventional Computed Tomography Angiography.
作者信息
Zeng Xiangfei, Wang Xiaoxia, Chen Huifang, Liu Daihong, Shi Jinfang, Zhang Jing, Li Xiaoqin, Zhang Liyin, Yang Yi, Zhang Jiuquan
机构信息
From the Department of Radiology, Chongqing University Cancer Hospital & Chongqing Cancer Hospital, & Chongqing Cancer Institute, Chongqing, P.R. China.
出版信息
J Comput Assist Tomogr. 2020 Nov/Dec;44(6):921-927. doi: 10.1097/RCT.0000000000001063.
OBJECTIVE
The objective of this study was to evaluate the image quality of monoenergetic images (MEIs (+)) acquired from dual-energy computed tomography with low-concentration and low-flow-rate contrast media for the arterial supply to the nipple-areola complex (NAC) in breast cancer compared with conventional computed tomography angiography (CTA).
METHODS
We enrolled 25 patients (MEI (+)300 group, 300 mg/mL and 2.5 mL/s of contrast media) and 23 patients (CTA370 group, 370 mg/mL and 3.5 mL/s of contrast media) for assessing NAC blood supply angiography. The image quality of the 2 groups was evaluated objectively and subjectively.
RESULTS
The 40 keV MEI (+)300 demonstrated higher attenuation and contrast-to-noise ratio than CTA370 group (P < 0.001). The subjective image quality and visualization of the arteries were comparable between 2 groups.
CONCLUSIONS
The 40 keV MEI (+)300 acquired from dual-energy computed tomography can achieve comparable image quality of arterial supply to NAC with low-concentration and low-flow-rate contrast media in breast cancer compared with CTA370.
目的
本研究的目的是评估与传统计算机断层扫描血管造影（CTA）相比，采用低浓度、低流速造影剂的双能计算机断层扫描获取的单能量图像（MEIs(+)）对乳腺癌乳头乳晕复合体（NAC）动脉供血的图像质量。
方法
我们纳入了25例患者（MEI(+)300组，造影剂浓度为300mg/mL，流速为2.5mL/s）和23例患者（CTA370组，造影剂浓度为370mg/mL，流速为3.5mL/s）来评估NAC供血血管造影。对两组的图像质量进行客观和主观评估。
结果
40keV的MEI(+)300显示出比CTA370组更高的衰减和对比噪声比（P<0.001）。两组之间主观图像质量和动脉可视化程度相当。
结论
与CTA370相比，双能计算机断层扫描获取的40keV的MEI(+)300在使用低浓度、低流速造影剂时，对乳腺癌NAC动脉供血能实现相当的图像质量。
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