PT - JOURNAL ARTICLE AU - Caseiras, G. Brasil AU - Thornton, J.S. AU - Yousry, T. AU - Benton, C. AU - Rees, J. AU - Waldman, A.D. AU - Jäger, H.R. TI - Inclusion or Exclusion of Intratumoral Vessels in Relative Cerebral Blood Volume Characterization in Low-Grade Gliomas: Does It Make a Difference? AID - 10.3174/ajnr.A0993 DP - 2008 Jun 01 TA - American Journal of Neuroradiology PG - 1140--1141 VI - 29 IP - 6 4099 - http://www.ajnr.org/content/29/6/1140.short 4100 - http://www.ajnr.org/content/29/6/1140.full SO - Am. J. Neuroradiol.2008 Jun 01; 29 AB - SUMMARY: We assessed the influence of inclusion (method 1) and exclusion (method 2) of intratumoral vessels when determining maximum relative cerebral blood volume (rCBVmax) in 3 types of low-grade gliomas (LGGs): astrocytomas, oligoastrocytomas, and oligodendrogliomas. Method 1 yielded significantly higher mean rCBVmax than method 2. However, only method 2 demonstrated a significant (P = .026) association between rCBVmax and membership of a differently ranked histologic category. Exclusion of intratumoral vessels appears, therefore, preferable when determining rCBVmax in LGGs.