Computed Tomography Observer Agreement in Staging Malignant Lymphoma.
作者信息
de Jong Antoinette, Kwee Thomas C, Quarles van Ufford Henriëtte M E, Beek Frederik J A, Quekel Lorentz G B A, de Klerk John M H, Zijlstra Josée M, Fijnheer Rob, Ludwig Inge, Kersten Marie José, Stoker Jaap, Nievelstein Rutger A J
机构信息
From the *Department of Radiology and Nuclear Medicine, University Medical Center Utrecht, Utrecht; †Department of Radiology, Medical Center Haaglanden, The Hague; Departments of ‡Radiology and §Nuclear Medicine, Meander Medical Center, Amersfoort; ∥Department of Haematology, VU University Medical Center, Amsterdam; ¶Department of Hematology, Meander Medical Center, Amersfoort; and #Department of Internal Medicine, Bernhove Hospital, Uden; and Departments of **Hematology and ††Radiology, Academic Medical Center, Amsterdam, The Netherlands.
出版信息
J Comput Assist Tomogr. 2016 Mar-Apr;40(2):261-5. doi: 10.1097/RCT.0000000000000338.
OBJECTIVE
To determine pretreatment computed tomography observer agreement in patients with newly diagnosed lymphoma.
METHODS
Forty-nine computed tomography scans were reviewed by 3 experienced radiologists, with each scan assessed twice by 1 observer. Predefined nodal and extranodal regions were assessed, and Ann Arbor stages were assigned. K-statistics were defined as poor (κ < 0.2), fair (κ > 0.2 to κ ≤ 0.4), moderate (κ > 0.4 to κ ≤ 0.6), substantial (κ > 0.6 to κ ≤ 0.8), and almost perfect (κ > 0.8 to κ ≤ 1).
RESULTS
Nodal interobserver agreement varied from 0.09 for infraclavicular involvement to 0.95 for para-iliac involvement; intraobserver agreement was substantial to almost perfect, except for infraclavicular nodes. Extranodal interobserver agreement varied from 0.56 to 0.88; intraobserver agreement was substantial to almost perfect. Ann Arbor stage interobserver agreement varied from 0.57 to 0.69; intraobserver agreement was substantial.
CONCLUSION
Computed tomography observer agreement in staging malignant lymphoma appears to be suboptimal.
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