| CHINESE ABSTRACT | 第6-8页 |
| ENGLISH ABSTRACT | 第8-10页 |
| SYMBOLS INTRODUCTION | 第11-13页 |
| Chapter Ⅰ: GENERAL INTRODUCTION | 第13-42页 |
| 1.1 Conceptual definition | 第13-15页 |
| 1.2 Literature review | 第15-42页 |
| 1.2.2 Physiology of the thyroid gland | 第18-20页 |
| 1.2.3 Impact of pregnancy on the physiology and morphology of the thyroid gland | 第20-22页 |
| 1.2.4 Reference ranges of thyroid hormones during pregnancy | 第22-23页 |
| 1.2.5 Thyroid imaging | 第23-27页 |
| 1.2.6 Thyroid diseases in pregnancy and the role of thyroid ultrasound | 第27-42页 |
| Chapter Ⅱ: STUDY PURPOSE | 第42-43页 |
| Research goals | 第42页 |
| Research Questions | 第42页 |
| Research Hypothesis | 第42-43页 |
| Chapter Ⅲ: MATERIALS AND METHODS | 第43-46页 |
| 3.1 Study setting and design | 第43页 |
| 3.2 Sampling procedure and sample size | 第43页 |
| 3.3 Data collection | 第43-44页 |
| 3.4 Ultrasound imaging acquisition | 第44-45页 |
| 3.5 Thyroid function and serum levels of thyroid hormones | 第45页 |
| 3.6 Statistical Analysis | 第45-46页 |
| Chapter Ⅳ: RESULTS | 第46-55页 |
| 4.1 Epidemio-clinical characteristics of women | 第46页 |
| 4.2 Ultrasound characteristics of goiter | 第46-49页 |
| 4.3 Ultrasound characteristics of thyroid nodules (TN) diseases | 第49-52页 |
| 4.4 Sonographic features of thyroid gland and sonographic diagnoses | 第52-53页 |
| 4.5 Related features | 第53-55页 |
| Chapter Ⅴ: DISCUSSION | 第55-61页 |
| 5.1 Ultrasonographic aspect of goiter in Chinese and Congolese women | 第55-56页 |
| 5.2 Ultrasonographic aspect of thyroid nodules in Chinese and Congolese women | 第56-60页 |
| 5.3 Ultrasonographic diagnosis and related comorbidities | 第60-61页 |
| Chapter Ⅵ: CONCLUSION, LIMITATIONS,STRENGTHS AND FUTURE PERSPECTIVES | 第61-63页 |
| 6.1 Conclusion | 第61页 |
| 6.2 Limitations, strengths and future perspectives | 第61-62页 |
| 6.3 Recommendations | 第62-63页 |
| Chapter Ⅶ: REFERENCES | 第63-78页 |
| Chapter Ⅷ: ACKNOWLEDGEMENTS | 第78-80页 |
| PUBLISHED ARTICLES | 第80-81页 |
| 附件 | 第81页 |
