Nonenhanced Single-Source Dual-Energy Computed Tomography(Ne

发布时间：2023-06-02 20:35

　　1.1.目的评估单源双能CT平扫鉴别肾上腺囊肿和低密度腺瘤的诊断意义。1.2.材料和方法回顾性收集2011年8月至2015年7月使用GE Discovery 750 HD扫描仪器(Gemstone Spectral Imaging(GSI),GE healthcare,Milwaukee,WI)行肾上腺单源双能CT平扫,CT诊断为低密度肾上腺结节并经病理证实为肾上腺囊肿或肾上腺腺瘤的患者58例,平均年龄(52.14±10.5)岁,范围为24-74岁。本研究包括18例肾上腺囊肿(男8例,女10例)和40例低密度肾上腺腺瘤(男15例,女25例)。单源双能CT生成虚拟单能量能谱(Virtual monochromatic spectral,VMS)和基物质分解(Material decomposition,MD)图像,从VMS图像中可获得40-140ke V单能量CT值和有效原子序数,从MD图像中可获得脂基值和水基值。在肾上腺囊肿和低密度腺瘤的最大层面测量,相隔10天分别测量两次(即ROI1和ROI2),每个ROI为病灶面积的2/3并且避开坏死或出血。利用虚拟单能量各Ke V对应的CT值计算...

【文章页数】：73 页

【学位级别】：硕士

【文章目录】：
Chinese Abstract (中文摘要)
English Abstract (英文摘要)
1. Introduction (前言)
2. Materials and Methods (材料和方法)
    2.1. Subjects (材料)
    2.2. Imaging (成像)
    2.3. Image Analysis (镜象分析)
    2.4. Statistical Analysis (统计分析)
3. Results (结果)
4. Discussion (讨论)
5. Conclusion (结论)
6. References (参考文献)
Literature Review (综述)
    1. Adrenal Glands (肾上腺)
        1.1. Adrenal cortex (肾上腺皮质)
            1.1.1. Zona glomerulosa (球状带)
            1.1.2. Zona fasciculata (束状带)
            1.1.3. Zona retucularis (网状带)
        1.2. Adrenal medulla (肾上腺髓质)
    2. Characteristic Morphological Features of AAs and ACs (肾上腺腺瘤和肾上腺囊肿的形态学特征)
        2.1. Adrenal Adenomas (AAs) (肾上腺腺瘤)
        2.2. Adrenal Cysts (ACs) (肾上腺囊肿)
            2.2.1. Endothelial cysts (内皮囊肿)
            2.2.2. Pseudocysts (假性囊肿)
            2.2.3. Simple/ True cysts (单纯性囊肿)
            2.2.4. Parasitic cysts (寄生虫性囊肿)
    3. Epidemiology (流行病学)
    4. Signs and Symptoms (体征和症状)
    5. Imaging Features of Normal Adrenal Gland (成像功能的正常的肾上腺)
    6. Distinguishing Imaging Features of AAs (鉴别肾上腺皮质腺瘤的影像学特征)
        6.1. Computed Tomography (CT) (电脑断层摄影)
        6.2. Magnetic resonance imaging (MRI) (磁共振成像)
        6.3. Others (别的)
        6.4. Hormonal/ biochemical evaluation (荷尔蒙或生化评定)
    7. Distinguishing imaging features of ACs (鉴别肾上腺囊肿的影像学特征)
        7.1. Computed Tomography (CT) (电脑断层摄影)
        7.2. Magnetic resonance imaging (MRI) (磁共振成像)
        7.3. Ultrasonography (USG) (超声波检查法)
    8. Follow-up investigations and Treatment (随访调查和治疗)
    9. Dual Energy Computed Tomography (DECT) (双能CT)
    10. Single Source Dual Energy CT (ss DECT) (单源双能CT)
        10.1. Virtual Monochromatic (VMC) Imaging (虚拟单能量能谱成像)
        10.2. Material Decomposition (MD) Imaging (基物质分解成像)
        10.3. Effective Atomic Number (有效原子序数)
        10.4. Radiation Dose Considerations (辐射剂量注意事项)
    11. Conclusion (结论)
    12. References (参考文献)
Appendix (附录)
Acknowledgement (致谢)



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