[Measurement of hematocrit of brain tumor using SPECT].
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.
Tomura
N
N
Department of Radiology, School of Medicine, Akita University.
Kobayashi
M
M
Seino
Y
Y
Hirata
K
K
Shindo
M
M
Watarai
J
J
Kato
T
T
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
D013668:Technetium Tc 99m Aggregated Albumin; D013667:Technetium