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MR perfusion and diffusion imaging in the follow-up of recurrent glioblastoma treated with dendritic cell immunotherapy : pilot studyVrabec, Matej, radiolog, 1977- ...Introduction: This study aims to determine the potential value of MR-PWI and MR-DWI to differentiate immune therapy-induced inflammatory response from recurrent glioblastoma tumour growth. Both can ... present as contrast-enhancing lesions on conventional magnetic resonance imaging (MRI). Methods: Patients with recurrent glioblastoma who could obtain a total or near-total resection were treated with dendritic cell immune therapy according to the HGG-IMMUNO-2003 trial. A retrospective analysis of 32 follow-up MRI examinations (mean follow-up time 21 months) in eight patients was performed for this pilot study. For the statistical analysis, the 32 examinations were divided into three groups: 0-obtained in patients that remained stable during the follow-up period, 1a-obtained in progressive-tumour patients at time points before definite progression and 1b-obtained in patients at or after progression. Results: Maximum lesional rCBV ratios were highest in group 1b (Student t test, 9.25 +/- 2.68; p < 0.001) and were higher in group 1a (4.87 +/- 1.61, p < 0.001) compared to group 0 (1.22 +/- 0.47). The minimum apparentdiffusion coefficients (ADCs) in the contrast-enhancing regions were lower in group 1a (0.62 +/- 0.06 x 10(-3) mm(2)/s) than in group 0 (1.03 +/- 0.43 x 10(-3) mm(2)/s, p = 0.01) and higher in group 1b (0.76 +/- 0.08) compared to 1a (p = 0.02). The minimum ADCs in the FLAIR-hyperintense region were lower in group 1a (0.62 +/- 0.06, p = 0.02) compared to group 0 (0.76 +/-0.16) but not significantly different in group 1b (0.68 +/- 0.07) from groups 0 and 1a (p = 0.33, p = 0.10). The mean ADCs of the FLAIR-hyperintense region and the mean ADCs of the contrast-enhancing lesion were not significantly different. (Abs. trunc. at 2000 ch.)Source: Neuroradiology. - ISSN 0028-3940 (Vol. 53, iss. 10, 2011, str. 721-731)Type of material - article, component partPublish date - 2011Language - englishCOBISS.SI-ID - 29620697
Author
Vrabec, Matej, radiolog, 1977- |
Van Cauter, Sofie |
Himmelreich, Uwe |
Šuput, Dušan
Topics
Dendritic Cells |
Adult |
Brain |
Pathology |
Brain Neoplasms |
Pathology |
Therapy |
Contrast Media |
Follow-Up Studies |
Glioblastoma |
Pathology |
Therapy |
Image Enhancement |
Immunotherapy |
Methods |
Perfusion |
Pilot Projects |
Treatment Outcome |
Dendritične celice |
Imunoterapija |
Odrasli |
Glioblastom |
Možgani |
Kontrastna sredstva |
Perfuzija |
Slika, povečanje |
Zdravljenje, izid |
Možganske novotvorbe |
Sledilne študije |
Pilotski projekti
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Vrabec, Matej, radiolog, 1977- | 28076 |
Van Cauter, Sofie | |
Himmelreich, Uwe | |
Šuput, Dušan | 07002 |
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