1. Image Center, Bozhou People’s Hospital, Bozhou Anhui 236800, China丨
2. Image Center, Lu’an Hospital of Anhui Medical University, Lu’an Anhui 237006, China
Abstract：Objective To evaluate the value of estandardized iodine concentration in artery and vein of enhanced CT in differential
diagnosis of metastatic lymph nodes in colon cancer. Methods All 34 colon cancer patients underwent full abdominal artery and
vein standardized iodine concentration-enhanced CT scan. The differences of iodine content and the slope of CT energy spectrum
curve among primary lesions, reactive proliferative lymph nodes and metastatic lymph nodes were observed. And the arterial and
venous standardized iodine concentration parameters in the energy spectrum CT enhancement to distinguish metastatic lymph nodes
and reactive hyperplasia accuracy, sensitivity, and specificity in lymph nodes were analyzed. Results A total of 504 lymph nodes
were found during intraoperative exploration in 34 patients with colon cancer, including 78 metastatic lymph nodes and 426 reactive
hyperplastic lymph nodes. The slope of the average CT energy spectrum curves of reactive hyperplastic lymph nodes, primary
lesion and metastatic lymph nodes increased sequentially (P<0.05), while their average iodine content values decreased sequentially
(P<0.05). The accuracy (86.98%), sensitivity (87.21%) and specificity (89.83%) of iodine content combined with the slope value
of CT energy spectrum curve were higher than those of iodine content alone and slope value of CT energy spectrum curve (73.48%,
74.63%), sensitivity (73.09%, 73.54%) and specificity (70.18%, 71.35%) respectively (P<0.05). Conclusion The value of iodine
content combined with with CT energy spectrum curve slope value has high clinical value in differentiating metastatic lymph nodes
from reactive hyperplasia lymph nodes of colon cancer.
董修明1，张为2，马东东1，唐莉1，章辉庆1，邱晓晖1. 能谱CT增强动、静脉标准化碘浓度在结肠癌转移性淋巴结鉴别中的价值[J]. 中国医疗设备, 2021, 36(11): 94-97.
DONG Xiuming1，ZHANG Wei2，MA Dongdong1，TANG Li1，ZHANG Huiqing1，QIU Xiaohui1. Value of Standardized Iodine Concentration in Artery and Vein of Enhanced CT
in Differential Diagnosis of Metastatic Lymph Nodes in Colon Cancer. China Medical Devices, 2021, 36(11): 94-97.
