评价使用高速数据探测器的超重和肥胖患者 CT 图像质量。
Evaluation of Image Quality of Overweight and Obese Patients in CT Using High Data Rate Detectors.
机构信息
Department for Radiology, Kantonsspital Baden, Baden, Switzerland.
Department of Health Sciences and Technology, Swiss Federal Institute of Technology, ETH Zurich, Zurich, Switzerland.
出版信息
In Vivo. 2023 May-Jun;37(3):1186-1191. doi: 10.21873/invivo.13194.
BACKGROUND/AIM: To evaluate the impact of high data rate and sampling frequency detector technology compared to standard scan equipment on the image quality in abdominal computed tomography (CT) of overweight and obese patients.
PATIENTS AND METHODS
A total of 173 patients were retrospectively included in this study. Objective image quality in abdominal CT was evaluated using comparative analysis with new detector technology prior to market launch and standard CT equipment. Contrast noise ratio (CNR), image noise, volumetric computed tomography dose index (CTDI), and figures of merit (Q and Q) were assessed for all patients.
RESULTS
Image quality was superior in the new detector technology for all parameters evaluated. The dose dependent parameters Q and Q showed a significant difference (p<0.001).
CONCLUSION
A significant increase in objective image quality could be demonstrated using a new generation detector setup with increased frequency transfer in abdominal CT of overweight patients.
背景/目的：评估与标准扫描设备相比，高数据速率和采样频率探测器技术对超重和肥胖患者腹部计算机断层扫描（CT）图像质量的影响。
患者与方法
本研究共回顾性纳入 173 例患者。在新探测器技术上市前，使用对比分析对腹部 CT 的客观图像质量进行评估，并与标准 CT 设备进行比较。对所有患者评估对比噪声比（CNR）、图像噪声、容积 CT 剂量指数（CTDI）和品质因数（Q 和 Q）。
结果
在评估的所有参数中，新探测器技术的图像质量均更优。剂量相关参数 Q 和 Q 显示出显著差异（p<0.001）。
结论
在超重患者的腹部 CT 中，使用具有更高频率传递的新一代探测器设置可显著提高客观图像质量。
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