摘要
目的探讨各种影像学检查方法在非转移性甲状腺癌中的诊断价值,提高该病的影像诊断水平。方法选择32例经临床病理证实为非转移性甲状腺癌的病例,回顾性分析其术前超声、CT、MRI和PET/CT图像,并与手术病理对照。结果肿瘤位于一侧叶者27例,一叶及峡部者4例,双叶者1例。病灶大小0.4cm×0.5cm-5.5cm×8cm,其中≤1cm者4例,>1cm及≤4cm者22例,>4cm者6例。形态呈类圆形28例,不规则形4例。边缘清楚者20例,边缘或部分边缘不清者12例。密度均匀者7例,密度不均者25例(其中囊变18例、出血5例)。内部见钙化者14例,无钙化者18例。四种检查对各种病变征象显示率不同,对病变诊断有不同的优缺点。定性诊断的准确率从高到低依次为PET/CT 87.5%、CT 68.8%、B超62.5%、MRI 50.0%,PET/CT与CT、B超和MRI之间比较差异有统计学意义(P<0.05),CT、B超与MRI之间比较差异有统计学意义(P<0.05)。结论 B超是诊断非转移性甲状腺癌首选和重要检查。CT是肿瘤定性和术前检查的必要方法。PET/CT是非转移性甲状腺癌定性诊断的最有效的手段。PET/CT和MRI在甲状腺微小癌诊断上有一定优势。
Objective To investigated the diagnostic value of various imaging methods in non metastatic thyroid car- cinoma and improve the diagnostic level of the disease. Methods The data were analyzed retrospectively in 32 cases with non metastatic thyroid carcinoma confirmed by pathology, the images of ultrasound, CT, MRI and PET/CT before operation were compared with pathology. Results 27 cases were presented in one side of thyroid, 4 cases in one lobe and isthmus, and 1 case in both sides. The size of tumors ranged from 0.4 X 0.5 to 5.5 X 8 centimeters,including 4 cases lower than 1 centimeters,22 cases from 1 to 4 centimeters,6 cases higher than 4 centimeters. 28 cases were of circular shape and 4 cases were of irregular shape. 45 cases were cystic or solid-cystic,and the remaining 5 were solid lesions. The edge of tumor were clear in 20 cases,12 cases of marginal or part of the edge is not clear. 7 cases were homogene- ous density,25 cases were uneven density （of which 18 cases were cystic degeneration,hemorrhage in＇ 5 cases）. Calcifi- cation were seen in 14 cases, 18 cases without calcification. There were various display rate in four inspection of the le- sions, as for different advantages and disadvantages in disease diagnosis. The qualitative diagnosis rate was decreased from PET/CT（87. 5% ）, CT （ 68. 8 % ）, B ultrasound （ 62. 5 % ） to MRI （ 50 %）, there were significant differences in PET/CT and CT,B ultrasound and MRI （P〈0.05）. There were also statistically significant differences between CT, B ultrasound and MRI groups（P〈0.05）. Conclusion B ultrasound is the prefered examination method on diagnosis of non metastatic thyroid carcinoma. It is an qualitative and preoperative examination method on computer tomography. PET/CT is the most effective examination method on diagnosis of non metastatic thyroid carcinoma. There were some advantages in the diagnosis of thyroid microcarcinoma in PET/CT and MRI .
出处
《中国实验诊断学》
2013年第7期1206-1209,共4页
Chinese Journal of Laboratory Diagnosis
关键词
甲状腺癌
PET
CT
CT
MRI
B超
Thyroid carcinoma
Positron emission tomography/computed tomography
Computed tomography
Magnetic resonance imaging
B ultrasound
