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| Thyroid Ultrasound: Change of Inter-observer Variability
and Diagnostic Performance after Training |
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| Hee Jung Moon, MD, Eun-Kyung Kim, MD, Jeong Seon Park, MD2, Jin Young Kwak, MD |
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| 1Department of Radiology, Research Institute of Radiological Science, Yonsei University College of Medicine
2Department of Radiology, Hanyang University Medical Center |
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| Purpose: To investigate and compare inter-observer variability and diagnostic performance
of thyroid ultrasound (US) between a faculty member and observing residents.
Materials and Methods: From October 2007 to June 2009, 18 residents underwent
training in thyroid US section. Group 1 included 8 residents that were trained for
the first time and group 2 included 10 residents that were trained for the second time.
US features of nodules were recoded according to the composition, echogenicity,
margin, calcifications, shape, and final assessment by a faculty member and residents,
respectively. Following a discussion, a faculty member performed fine needle
aspiration. Then, the inter-observer variability and diagnostic performance between a
faculty member and residents were investigated and compared for US.
Results: In group 1, agreement for composition in resident 1, calcification for residents
5 and 6, and shape for resident 4 were slight, moderate, moderate, and moderate,
respectively. In group 2, agreement for composition in residents 1 and 10 were
moderate. Substantial or greater agreement was observed more frequently in group 2
than 1. The diagnostic performances for both the faculty and residents were high and
not statistically different.
Conclusion: Agreement for US features between a faculty and residents as well as
diagnostic performance were high. Moreover, diagnostic performance of residents
that underwent training a second time of training was higher than residents that underwent
training only once. |
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| Keyword : Thyroid; Ultrasound (US); Thyroid, biopsy; Inter-observer variability |
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pdf파일 : 023-28문희정.pdf 
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> Journal > Journal Search 
Journal of Korean Society of Ultrasound in Medicine 2011 ; 30 (1) : p.23-28
