多层螺旋CT双低技术扫描在肺动脉血管成像中的应用
Multilayer Spiral CT Double Low Technique Scanning in Pulmonary Artery Vascular Imaging
ES评分 0
| DOI |
10.12208/j.ijmd.20220234 |
| 刊名 |
International Journal of Medicine and Data
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| 年，卷(期) |
2022, 6(6) |
| 作者 |
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| 作者单位 |
内江市中医医院 四川内江 ;
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| 摘要 |
分析多层螺旋CT肺动脉血管成像中使用双低技术扫描的效果。方法 ①体模试验：制备肺血管模型，多层螺旋CT扫描，分析CNR。②人体试验：从2021年5月-2022年5月疑似肺动脉栓塞患者中随机抽取52例，双盲法均分为A组（常规扫描）、B组（双低技术扫描），分析图像质量。结果 管电流相同管电压不同、碘浓度不同扫描图像的CNＲ均无太大变化（p＞0.05）；B组图像质量评分、CT值（左、右肺动脉、左上叶肺动脉）、肺动脉主干（CT值、CNR、SNR）和A组差异较小（p＞0.05）；B组静脉污染评分、CTDIvol、DLP、碘摄入量优于A组（P＜0.05）。结论 多层螺旋CT肺动脉血管成像中使用双低技术扫描，能得到理想的图像质量，具有更高的安全系数，可用于诊断PE。
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| Abstract |
Objective To analyze the effect of double low technique scanning in multi-slice spiral CT pulmonary angiography. Methods ① Phantom test: pulmonary vascular model was prepared, and multi-slice spiral CT scan was performed to analyze CNR.② Human study: From May 2021 to May 2022, 52 patients with suspected pulmonary embolism were randomly selected and divided into group A (conventional scanning) and group B (double low-technology scanning) by double-blind method. Image quality was analyzed. Results The CNR and SNR of the same tube current and different tube voltage and iodine concentration had no significant change (p > 0.05). The image quality score, CT value (left and right pulmonary artery, left upper pulmonary artery), main pulmonary artery (CT value, CNR) of group B and group A had little difference (p>0.05). The venous contamination score, CTDIvol, DLP and iodine intake in group B were better than those in group A (P < 0.05). Conclusion The use of double-low technique in MSCT pulmonary angiography can obtain ideal image quality and has higher safety factor, which can be used in the diagnosis of PE.
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| 关键词 |
多层螺旋CT；肺动脉血管成像；双低技术扫描；可行性；安全性
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| KeyWord |
Multi-slice spiral CT; Pulmonary artery angiography; Dual low-tech scanning; The feasibility; security
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| 基金项目 |
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| 页码 |
37-40 |
许志强*.
多层螺旋CT双低技术扫描在肺动脉血管成像中的应用 [J].
国际医学与数据杂志.
2022; 6; (6).
37 - 40.