Open AccessIs there a reliable size cut-off for splenic involvement in lymphoma? A [18F]FDG-PET controlled study
Author(s) -
Dominik Berzaczy,
Alexander Haug,
Markus Raderer,
Barbara Kiesewetter,
Gundula Berzaczy,
Michael Weber,
Marius E. Mayerhoefer
Publication year - 2019
Publication title -
plos one
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.99
H-Index - 332
ISSN - 1932-6203
DOI - 10.1371/journal.pone.0213551
Subject(s) - medicine , lymphoma , nuclear medicine , spleen , positron emission tomography , radiology , receiver operating characteristic , pathology
Purpose Aim of present study was to determine whether the currently recommended 13-cm cranio-caudal diameter cut-off on CT for assessment of splenic involvement in lymphoma offers adequate sensitivity and specificity. Materials and Methods Patients with histologically proven lymphoma who had undergone [18F]FDG-PET/CT before therapy were included. Cranio-caudal diameters of the spleen were measured on the CT component of PET/CT, and ROC analyses with calculation of respective areas under the curve (AUC) were used to determine cut-off values of cranio-caudal measurements with their respective sensitivities and specificities, using [18F]FDG-PET as the reference standard. Results In 93 patients, we found a sensitivity of 74.1% and a specificity of 47% for the 13-cm splenic diameter cut-off. Conclusions Our results show reasonable, though far from perfect sensitivities and specificities for the currently recommend 13-cm splenic diameter cut-off.