肿瘤淋巴结转移患者CT能谱诊断的效果及对其预后质量的影响

Effect of CT Spectral Diagnosis on Prognosis of Patients with Lymph Node Metastasis and its Prognostic Value

目的:探究CT能谱诊断在肿瘤淋巴结转移患者中的应用效果以及对患者预后质量的影响。方法:选取我院2016年4月至2017年11月收治的经病理检查后确诊为恶性肿瘤的患者60例,按照的疾病发生部位将其分为淋巴瘤组、肺腺癌组以及胆管癌组,安排各组患者接受CT能谱成像检查,对比各组淋巴结在不同能量下的CT值,根据结果对患者进行预后判断,能谱的范围应保持在40~140 keV之间,梯度为10,对比不同组患者在同一能量下淋巴结中含水量以及含碘量的差异。结果:能量达70 kev时所呈的图像最清晰,此数值在各组患者中均适用,相同的能量状态下,各组患者转移性的淋巴结碘含量以及CT值大小关系为:淋巴瘤组>肺腺癌组>胆管癌组(P<0.05)。各组患者转移性淋巴结中的含水量差异不存在统计学意义(P>0.05),淋巴癌组的预后生存时间明显长于其他组(P<0.05)。结论:应用CT能谱进行肿瘤淋巴结转移患者的疾病诊断能够通过检测的碘含量判断疾病发生情况,不同来源的转移性淋巴结在70 keV下的CT值差异较大,可作为观察转移性淋巴结中的能量标准。

Objective： To analyze the effect of CT spectrum diagnosis in patients with lymph node metastasis of tumor and its influence on the prognosis quality of patients. Methods ：in our hospital from April 2016 to November 2017 were pathologically diagnosed malignant tumor in 60 cases, according to the patient’s disease occurrence site will be divided into lymphoma group, lung cancer group and cholangiocarcinoma group three, lymph node number of patients in three groups were 26, 30, 32. For patients in each group received CT spectral imaging value in different energy CT groups were compared for patients with lymph node and prognosis of patients according to the results, the range of spectrum should be kept between the 40-140 keV gradient was 10, comparison of different groups of patients between moisture and iodine content in the same energy in lymph nodes..Results ：energy up to 70 kev as the most clear, this value applies in both groups of patients, the same energy state, each group of patients with metastatic lymph nodes of iodine content and CT value size relationship： Lymphoma Group 〉 lung adenocarcinoma group 〉 bile duct group（P 〈 0.05）; groups of patients with metastatic lymph nodes the water content of the difference was not statistically significant（P 〉 0.05）, the prognosis of patients with lymph cancer group was significantly longer than that of other groups in practice（P 〈 0.05）. Conclusion： the application of CT of lymph node metastasis in patients with disease diagnosis through detection of iodine content in judging patients with disease onset, obvious difference in 70 keV the CT node metastatic lymph nodes from different sources, which can be used to transfer energy standard in lymph nodes.