Can diffusion-weighted whole-body MRI replace contrast-enhanced CT for initial staging of Hodgkin lymphoma in children and adolescents?

Can diffusion-weighted whole-body MRI replace contrast-enhanced CT for initial staging of Hodgkin lymphoma in children and adolescents?

Author Regacini, Rodrigo Autor UNIFESP Google Scholar
Puchnick, Andrea Autor UNIFESP Google Scholar
Luisi, Flavio Augusto Vercillo Autor UNIFESP Google Scholar
Lederman, Henrique Manoel Autor UNIFESP Google Scholar
Abstract Although positron emission tomography with 18F-fluoro-2-deoxyglucose (FDG-PET/CT) has been recommended as the method of choice for lymphoma staging, it has limited availability in several countries, therefore, studies comparing whole-body magnetic resonance imaging (MRI) to conventional staging methods or to FDG-PET/CT are an important tool to establish whole-body MRI as an alternative to these methods. To compare whole-body MRI versus conventional imaging methods for staging of Hodgkin lymphoma in children and adolescents. The study included 22 patients ages 5 to 21 years. Staging was performed using conventional imaging methods and whole-body MRI. Conventional imaging methods were defined as computed tomography (CT) of the neck, chest, abdomen and pelvis and ultrasonography of the neck and/or abdomen. We calculated the sensitivity of these methods for Hodgkin lymphoma staging and their sensitivity and specificity for detecting sites of nodal and extranodal involvement. The sensitivity of whole-body MRI for Hodgkin lymphoma staging was superior to that of conventional imaging methods (95.5% vs. 86.4%, respectively), but both methods had similar sensitivity and specificity for detecting involvement of nodal sites (99.1% and 100% vs. 97.3% and 100%, respectively) and extranodal sites (90.5% and 98.7% vs. 90.5% and 99.4%, respectively). Whole-body MRI has excellent sensitivity for staging of Hodgkin lymphoma in children and adolescents. It can thus be considered an alternative for this purpose, particularly because it does not expose patients to ionizing radiation.
Keywords Children
Computed tomography
Diffusion-weighted imaging
Hodgkin lymphoma
Magnetic resonance imaging
Whole-body imaging
xmlui.dri2xhtml.METS-1.0.item-coverage New York
Language English
Date 2018
Published in Pediatric Radiology. New York, v. 48, n. 5, p. 638-647, 2018.
ISSN 0301-0449 (Sherpa/Romeo, impact factor)
Publisher Springer
Extent 638-647
Origin http://dx.doi.org/10.1007/s00247-018-4071-6
Access rights Closed access
Type Article
Web of Science ID WOS:000429802500008
URI https://repositorio.unifesp.br/handle/11600/55605

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