TY - JOUR
T1 - Computed Tomography Observer Agreement in Staging Malignant Lymphoma
AU - de Jong, AH
AU - Kwee, Thomas C.
AU - Quarles van Ufford, Henriëtte M E
AU - Beek, Frederik J A
AU - Quekel, Lorentz G B A
AU - de Klerk, John M H
AU - Zijlstra, Josée M.
AU - Fijnheer, Rob
AU - Ludwig, Inge
AU - Kersten, Marie José
AU - Stoker, Jaap
AU - Nievelstein, Rutger A J
PY - 2016/3
Y1 - 2016/3
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=84947996337&partnerID=8YFLogxK
U2 - 10.1097/RCT.0000000000000338
DO - 10.1097/RCT.0000000000000338
M3 - Article
C2 - 26599962
AN - SCOPUS:84947996337
SN - 0363-8715
VL - 40
SP - 261
EP - 265
JO - Journal of Computer Assisted Tomography
JF - Journal of Computer Assisted Tomography
IS - 2
ER -