Initial experience with FSE STIR whole-body MR imaging for staging lymphoma in children.
Our objective was to compare fast spin-echo (FSE) short inversion time inversion recovery (STIR) whole-body MR imaging with standard procedures in staging children with lymphoma. Eight children (age range, 2-16 years) underwent multi-station FSE STIR whole-body MR at initial staging (n=5) or for restaging following completion of therapy (n=5). Whole-body MR and conventional staging procedures, including CT (n=10), gallium-67 scintigraphy (n=9), bone scintigraphy (n=3) and bone marrow biopsy (n=7) were retrospectively compared for detection of sites involved by lymphoma and for the assigned stage. FSE STIR whole-body MR detected more sites of possible lymphomatous involvement at initial staging (87/88) and at restaging (5/5) than did conventional imaging (74/88, 3/5). MR was more sensitive than conventional imaging in detecting bone marrow involvement at initial staging. Following treatment, however, residual and therapy-induced bone marrow signal abnormalities could not be differentiated from lymphomatous involvement. Detection of nodal and visceral involvement correlated well. Our results suggest that FSE STIR whole-body MR imaging is a sensitive technique for evaluating lymphomatous involvement of bone marrow as well as non-marrow sites. Larger prospective trials are needed to determine if FSE STIR whole-body MR can replace standard radiographic procedures for initial staging and contribute in the follow-up of lymphoma in children.
Kellenberger
Christian J
CJ
Department of Diagnostic Imaging, The Hospital for Sick Children, 555 University Avenue, Toronto, ON, Canada.
Miller
Stephen F
SF
Khan
Mustafa
M
Gilday
David L
DL
Weitzman
Sheila
S
Babyn
Paul S
PS
D000293:Adolescent; D001706:Biopsy; D001853:Bone Marrow / Q000473:pathology; D001842:Bone and Bones / Q000000981:diagnostic imaging; D002051:Burkitt Lymphoma / Q000473:pathology; D002648:Child; D002675:Child, Preschool; D005260:Female; D005500:Follow-Up Studies; D005710:Gallium Radioisotopes; D006689:Hodgkin Disease / Q000473:pathology; D006801:Humans; D007091:Image Processing, Computer-Assisted / Q000379:methods*; D008198:Lymph Nodes / Q000473:pathology; D008223:Lymphoma / Q000473:pathology*; D016393:Lymphoma, B-Cell / Q000473:pathology; D016403:Lymphoma, Large B-Cell, Diffuse / Q000473:pathology; D008279:Magnetic Resonance Imaging / Q000379:methods*; D008297:Male; D009367:Neoplasm Staging; D054198:Precursor Cell Lymphoblastic Leukemia-Lymphoma / Q000473:pathology; D011877:Radionuclide Imaging; D019275:Radiopharmaceuticals; D012189:Retrospective Studies; D014057:Tomography, X-Ray Computed
D005710:Gallium Radioisotopes; D019275:Radiopharmaceuticals