1.1.目的評(píng)估單源雙能CT平掃鑒別腎上腺囊腫和低密度腺瘤的診斷意義。1.2.材料和方法回顧性收集2011年8月至2015年7月使用GE Discovery 750 HD掃描儀器(Gemstone Spectral Imaging(GSI),GE healthcare,Milwaukee,WI)行腎上腺單源雙能CT平掃,CT診斷為低密度腎上腺結(jié)節(jié)并經(jīng)病理證實(shí)為腎上腺囊腫或腎上腺腺瘤的患者58例,平均年齡(52.14±10.5)歲,范圍為24-74歲。本研究包括18例腎上腺囊腫(男8例,女10例)和40例低密度腎上腺腺瘤(男15例,女25例)。單源雙能CT生成虛擬單能量能譜(Virtual monochromatic spectral,VMS)和基物質(zhì)分解(Material decomposition,MD)圖像,從VMS圖像中可獲得40-140ke V單能量CT值和有效原子序數(shù),從MD圖像中可獲得脂基值和水基值。在腎上腺囊腫和低密度腺瘤的最大層面測(cè)量,相隔10天分別測(cè)量?jī)纱?即ROI1和ROI2),每個(gè)ROI為病灶面積的2/3并且避開壞死或出血。利用虛擬單能量各Ke V對(duì)應(yīng)的CT值計(jì)算...

【文章頁數(shù)】：73 頁

【學(xué)位級(jí)別】：碩士

【文章目錄】：
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 (鏡象分析)
    2.4. Statistical Analysis (統(tǒng)計(jì)分析)
3. Results (結(jié)果)
4. Discussion (討論)
5. Conclusion (結(jié)論)
6. References (參考文獻(xiàn))
Literature Review (綜述)
    1. Adrenal Glands (腎上腺)
        1.1. Adrenal cortex (腎上腺皮質(zhì))
            1.1.1. Zona glomerulosa (球狀帶)
            1.1.2. Zona fasciculata (束狀帶)
            1.1.3. Zona retucularis (網(wǎng)狀帶)
        1.2. Adrenal medulla (腎上腺髓質(zhì))
    2. Characteristic Morphological Features of AAs and ACs (腎上腺腺瘤和腎上腺囊腫的形態(tài)學(xué)特征)
        2.1. Adrenal Adenomas (AAs) (腎上腺腺瘤)
        2.2. Adrenal Cysts (ACs) (腎上腺囊腫)
            2.2.1. Endothelial cysts (內(nèi)皮囊腫)
            2.2.2. Pseudocysts (假性囊腫)
            2.2.3. Simple/ True cysts (單純性囊腫)
            2.2.4. Parasitic cysts (寄生蟲性囊腫)
    3. Epidemiology (流行病學(xué))
    4. Signs and Symptoms (體征和癥狀)
    5. Imaging Features of Normal Adrenal Gland (成像功能的正常的腎上腺)
    6. Distinguishing Imaging Features of AAs (鑒別腎上腺皮質(zhì)腺瘤的影像學(xué)特征)
        6.1. Computed Tomography (CT) (電腦斷層攝影)
        6.2. Magnetic resonance imaging (MRI) (磁共振成像)
        6.3. Others (別的)
        6.4. Hormonal/ biochemical evaluation (荷爾蒙或生化評(píng)定)
    7. Distinguishing imaging features of ACs (鑒別腎上腺囊腫的影像學(xué)特征)
        7.1. Computed Tomography (CT) (電腦斷層攝影)
        7.2. Magnetic resonance imaging (MRI) (磁共振成像)
        7.3. Ultrasonography (USG) (超聲波檢查法)
    8. Follow-up investigations and Treatment (隨訪調(diào)查和治療)
    9. Dual Energy Computed Tomography (DECT) (雙能CT)
    10. Single Source Dual Energy CT (ss DECT) (單源雙能CT)
        10.1. Virtual Monochromatic (VMC) Imaging (虛擬單能量能譜成像)
        10.2. Material Decomposition (MD) Imaging (基物質(zhì)分解成像)
        10.3. Effective Atomic Number (有效原子序數(shù))
        10.4. Radiation Dose Considerations (輻射劑量注意事項(xiàng))
    11. Conclusion (結(jié)論)
    12. References (參考文獻(xiàn))
Appendix (附錄)
Acknowledgement (致謝)



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