title: [Measurement of hematocrit of brain tumor using SPECT].
abstract: The cerebral-to-large vessel hematocrit ratio (alpha) was measured using single-photon emission computed tomography (SPECT) in patients with brain tumors. SPECT was performed following intravenous injection of 99mTc-labelled red blood cell and 99mTc-labelled human serum albumin with an interval of 72 hr. In a series of seven subjects, the mean value of "alpha" in tumor (0.74 +/- 0.13) was lower than that (0.83 +/- 0.14) in normal brain tissue. This result may be due to the increased flow of red blood cells in tumor.
authors.affiliation: Department of Radiology, School of Medicine, Akita University.
authors.forename: N
authors.initials: N
authors.lastname: Tomura
authors.forename: M
authors.initials: M
authors.lastname: Kobayashi
authors.forename: Y
authors.initials: Y
authors.lastname: Seino
authors.forename: K
authors.initials: K
authors.lastname: Hirata
authors.forename: M
authors.initials: M
authors.lastname: Shindo
authors.forename: J
authors.initials: J
authors.lastname: Watarai
authors.forename: T
authors.initials: T
authors.lastname: Kato
mesh_terms: D000328:Adult; D000368:Aged; D001932:Brain Neoplasms / Q000000981:diagnostic imaging*; D004912:Erythrocytes; D005260:Female; D006400:Hematocrit / Q000379:methods*; D006801:Humans; D008297:Male; D008875:Middle Aged; D013667:Technetium; D013668:Technetium Tc 99m Aggregated Albumin; D015899:Tomography, Emission-Computed, Single-Photon
chemical_list: D013668:Technetium Tc 99m Aggregated Albumin; D013667:Technetium