Publications Repository - Helmholtz-Zentrum Dresden-Rossendorf2 Publications
Perfusion decrease during radiochemotherapy is not fully explained by volumetric gray matter changes
Petr, J.; Mutsaerts, H.; Hofheinz, F.; Asllani, I.; van Osch, M.; Platzek, I.; Seidlitz, A.; Krause, M.; van den Hoff, J.
Radiochemotherapy in brain-tumor patients was shown to cause gray matter (GM) volume and cerebral blood flow (CBF) changes. The interaction of these two effects, however, remains unclear. Here, we investigated GM volume and ASL CBF changes and their interaction in the healthy hemisphere of 38 glioblastoma patients undergoing radiochemotherapy with Temozolomide. We found a statistically significant CBF decrease with dependence on the RT-dose. PV-corrected results indicated that, while to a certain extent the apparent CBF decrease measured by ASL is caused by GM atrophy, there still remain significant CBF changes that cannot be explained by structural changes alone.
Keywords: ASL; perfusion; glioblastoma; radiochemotherapy; atrophy; partial volume
Contribution to proceedings
25th Scientific Meeting and Exhibition of International Society for Magnetic Resonance in Medicine, 22.-27.04.2017, Honolulu, Hawaii, USA
Proceedings of the 25th Scientific Meeting and Exhibition of International Society for Magnetic Resonance in Medicine
25th Scientific Meeting and Exhibition of International Society for Magnetic Resonance in Medicine, 22.04.2017, Honolulu, Hawaii, USA