Department of Radiology, Faculty of Medicine, İnönü University, Malatya, Turkey.
Department of Urology, Faculty of Medicine, İnönü University, Malatya, Turkey.
Turk J Med Sci. 2023 Feb;53(1):264-272. doi: 10.55730/1300-0144.5581. Epub 2023 Feb 22.
Dual-energy computed tomography scans can provide significant benefits to the urinary system. The aim of this study is to determine the limitations and benefits of using dual energy CT urography in patients with urinary system stones and cysts.
In the analysis of the images, the virtual noncontrasted images obtained from the combined nephrogenicexcretory phase and the true noncontrasted images were evaluated. The true noncontrast images were accepted as the gold standard for stone detection.
Eighty-three different stones were detected in 26 of the 115 patients included in the study. Sensibilities of virtual noncontrast images in detecting urinary system stones were 66.7% and 65.4% according to the first and second radiologists, respectively. In this study, 32 hyperdense cysts were detected. According to iodine map images, there was no enhancement in 26 of 32 cysts; only 5 cysts showed minimal contrast enhancement. One patient could not decide on contrast enhancement.
As a result, if CT urography is performed with dual energy, it can provide additional information in patients with urinary system disorder.
双能 CT 扫描可为泌尿系统提供重要信息。本研究旨在确定双能 CT 尿路造影术在泌尿系统结石和囊肿患者中的局限性和优势。
在图像分析中，评估了组合的肾分泌期和真实的非对比图像中获得的虚拟非对比图像。真实的非对比图像被视为结石检测的金标准。
在纳入的 115 例患者中的 26 例中检测到 83 个不同的结石。根据第一和第二位放射科医生的结果，虚拟非对比图像检测泌尿系统结石的灵敏度分别为 66.7%和 65.4%。在这项研究中，检测到 32 个高密度囊肿。根据碘图图像，32 个囊肿中有 26 个无增强，只有 5 个囊肿显示出轻微的对比增强。有一位患者无法确定是否增强。
因此，如果对泌尿系统疾病患者进行双能 CT 尿路造影，它可以提供额外的信息。
