Abstract #4355

Differentiation of Glioblastoma from Brain Metastasis: Qualitative and Quantitative Analysis using Pseudo-continuous Arterial Spin Labeling MR Imaging

Leonard Sunwoo^1,2, Tae Jin Yun^2,3, Roh-Eul Yoo^2,3, Soo Chin Kim^2,4, and Hye Young Sun^2,4

¹Radiology, Seoul National University Bundang Hospital, Seongnam, Korea, Republic of, ²Seoul National University College of Medicine, Seoul, Korea, Republic of, ³Radiology, Seoul National University Hospital, Seoul, Korea, Republic of, ⁴Radiology, Seoul National University Healthcare System Gangnam Center, Seoul, Korea, Republic of

Arterial spin labeling (ASL) magnetic resonance (MR) imaging could be used to assess the tumor blood flow (TBF). To distinguish glioblastoma (GBM) from brain metastasis, we compared TBF between the two groups by using visual grading and quantitative analyses. Both intratumoral and peritumoral blood flow were significantly higher in GBM than in brain metastasis. We propose that ASL-TBF can aid in differentiating GBM from brain metastasis either by qualitative or by quantitative methods.

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