CT Section of The Second Hospital Affiliated Qiqihar Medical University, Qiqihar 161000, Heilongjiang, China.
Qiqihar Medical University, Qiqihar 161000, Heilongjiang, China.
J Healthc Eng. 2021 Feb 26;2021:5526977. doi: 10.1155/2021/5526977. eCollection 2021.
The emergence of energy spectrum CT provides greater diagnostic value for clinical practice. Its advantage is that it can provide more functional imaging parameters and accurate image information for clinical practice, which represents a mainstream direction of CT technology development at present. This paper mainly studies the clinical trial of CAMPO Precision128 Max ENERGY spectrum CT combined with multiple parameters to evaluate the benign and malignant pleural effusion. This paper analyzes the principle and key performance parameters of energy spectrum CT imaging, the etiology of pleural effusion, and its conventional diagnostic methods and uses energy spectrum CT to detect the benign and malignant pleural effusion. In this paper, two groups of patients with different types of pleural effusions were scanned by line spectrum chest CT scans, and energy spectrum analysis software was used to measure and calculate the CT values of conventional mixed energy values of ROI of patients with pleural effusions. For the CT value and energy curve slope measurement value of different single energy keV, independent sample -test was used to analyze and compare the two sets of data, and finally it has been found out that the two sets of data were similar. According to the experimental results, the curves of energy spectrum of the two groups of data are similar in the descending curve of bow-back. The slope of energy spectrum curve in the leakage group was lower than that in the exudate group, showing statistical significance ( < 0.05). The slope of energy spectrum curve K in the malignant pleural effusion group was significantly higher than that in the benign pleural effusion group, and the difference was statistically significant ( < 0.05). The trend of energy spectrum curves of the two is roughly the same, while at the high energy level, part of the energy spectrum curves of the two are overlapped. The above conclusion indicates that energy spectrum CT plays a certain role in the differential diagnosis of pleural effusion. At the same time, energy spectrum CT also provides a noninvasive and rapid examination method for clinical differentiation of pleural effusion, which has certain clinical application value and prospect.
能谱 CT 的出现为临床实践提供了更大的诊断价值。其优势在于能够为临床实践提供更多的功能成像参数和准确的图像信息,代表了目前 CT 技术发展的主流方向。本文主要研究 CAMPO Precision128 Max ENERGY 能谱 CT 联合多种参数评估良恶性胸腔积液的临床验证。本文分析了能谱 CT 成像的原理和关键性能参数、胸腔积液的病因及其常规诊断方法,并利用能谱 CT 检测良恶性胸腔积液。本文采用线光谱胸部 CT 扫描对两组不同类型胸腔积液患者进行扫描,采用能谱分析软件测量并计算胸腔积液患者 ROI 的常规混合能量值的 CT 值。对不同单能量 keV 的 CT 值和能谱曲线斜率测量值进行独立样本 t 检验分析比较两组数据,最终得出两组数据相似的结论。根据实验结果,两组数据的能谱曲线在 Bow-back 下降曲线中相似。漏出液组的能谱曲线斜率低于渗出液组,具有统计学意义(<0.05)。恶性胸腔积液组的能谱曲线斜率 K 明显高于良性胸腔积液组,差异有统计学意义(<0.05)。两组能谱曲线的趋势大致相同,而在高能级部分,两组的部分能谱曲线有重叠。上述结论表明能谱 CT 在胸腔积液的鉴别诊断中具有一定的作用。同时,能谱 CT 也为胸腔积液的临床鉴别提供了一种非侵入性、快速的检查方法,具有一定的临床应用价值和前景。