Relationship of aspect transverse ratio and capsule invasion of papillary thyroid microcarcinoma with different size and location / 中国医学影像技术
Chinese Journal of Medical Imaging Technology
; (12): 850-854, 2018.
Article
in Zh
| WPRIM
| ID: wpr-706342
Responsible library:
WPRO
ABSTRACT
Objective To analyze the ultrasonic features of papillary thyroid microcarcinoma (PTMC) with different size and location,and to investigate the relationship of aspect transverse ratio (A/T) and capsule invasion in PTMC.Methods Totally 407 patients of PTMC with 495 nodules confirmed by pathology were enrolled.The nodules were divided into largest diameter≤0.5 cm group and largest diameter>0.5 cm group.The ultrasonic signs of nodules were observed,and the relationship between A/T and thyroid capsule invasion was analyzed.Results The differences of blood type,relationship with capsule,calcification,morphology and A/T were statistically significant between the two groups (all P<0.05).In nodules closed to capsule and A/T≥1,the rate of capsule invasion in diameter>0.5 cm group (117/185,63.24%) was higher than that in diameter≤0.5 cm group (25/61,40.98%,P<0.01).Taking A/T≥1 as the standard,the sensitivity of A/T in estimating capsule invasion of nodules closed to capsule in diameter≤0.5 cm group and diameter> 0.5 cm group was 89.29% and 73.58%,the specificity was 29.41% and 37.61%,respectively.In nodules adjacent to capsule and broken through capsule,the difference of capsule invasion rate was not significant between nodules with A/T≥1 and A/T<1 (both P>0.05).In nodules that contact capsule,the capsule invasion rate of A/T≥1 nodules (46/67,68.66%) was higher than that of A/T<1 (10/27,37.04%).Taking A/T≥1 as the standard,the sensitivity of A/T in estimating capsule invasion of nodules touched capsule was 82.14%,and the specificity was 44.74%.Conclusion Ultrasonography can show the size,A/T and relationship with capsule in PTMC,which can provide diagnostic evidences in judging capsule invasion of PTMC.
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Database:
WPRIM
Language:
Zh
Journal:
Chinese Journal of Medical Imaging Technology
Year:
2018
Document type:
Article