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Chinese Journal of Medical Ultrasound (Electronic Edition) >
2020 , Vol. 17 >Issue 07: 684 - 690
DOI: https://doi.org/10.3877/cma.j.issn.1672-6448.2020.07.018
Interobserver variability in sonographic evaluation of thyroid nodules with ACR-TI-RADS, EU-TI-RADS and KTA/KSThR-TIRADS
Received date: 2020-01-16
Online published: 2020-07-01
To retrospectively evaluate interobserver variability in sonographic evaluation of thyroid nodules with three different thyroid imaging reporting and data systems (TI-RADS).
This retrospective study included 257 thyroid nodules of 168 patients confirmed by pathology at Civil Aviation General Hospital between January to December 2017. All nodules were categorized according to the ACR-TIRADS, EU-TIRADS, and KTA/KSThR-TIRADS. Interobserver variability for the three different TI-RADS was determined using weighted Kappa statistics. Interobserver variability for the classification level of different TI-RADS and ultrasonic characteristics evaluation was also determined.
The Kappa values for ACR-TI-RADS, EU-TI-RADS, and KTA/KSThR-TI-RADS were 0.62, 0.45, and 0.64 respectively. For ACR-TI-RADS 5, EU-TI-RADS high risk, and KTA/KSThR-TI-RADS high suspicion level, the Kappa values were 0.726, 0.686, and 0.721, respectively. For US assessment of the cystic, oval shape, and taller-than-wide signs, the Kappa value were 0.733, 0.700, and 0.738, respectively.
Interobserver agreement is good for diagnosing thyroid nodules with ACR-TIRADS and KTA/KSThR-TIRADS. There is good interobserver agreement on high risk level among the three different TIRADS, which providing better clinical practicability.
Qiang Fu , Ying Xiong , Kexin Song , Yan Yan , Hao Liu . Interobserver variability in sonographic evaluation of thyroid nodules with ACR-TI-RADS, EU-TI-RADS and KTA/KSThR-TIRADS[J]. Chinese Journal of Medical Ultrasound (Electronic Edition), 2020 , 17(07) : 684 -690 . DOI: 10.3877/cma.j.issn.1672-6448.2020.07.018
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