title: Grade II astrocytoma visualized by technetium-99m-ECD SPECT.
abstract: We present a case of primary brain tumor demonstrating increased uptake of 99mTc-ECD. Astrocytoma (Grade II) showed significantly increased cerebral blood perfusion on dynamic images and homogeneously increased uptake on static images with 99mTc-ECD brain SPECT. There seems to be some difference in perfusion and mechanism of tumor uptake among the cerebral blood flow imaging agents (99mTc-ECD, 99mTc-HMPAO and [123I]-IMP) and 201TI-chloride.
authors.affiliation: Department of Nuclear Medicine, Gunma University, School of Medicine, Japan.
authors.forename: T
authors.initials: T
authors.lastname: Hirano
authors.forename: H
authors.initials: H
authors.lastname: Suzuki
authors.forename: T
authors.initials: T
authors.lastname: Higuchi
authors.forename: N
authors.initials: N
authors.lastname: Watanabe
authors.forename: N
authors.initials: N
authors.lastname: Oriuchi
authors.forename: T
authors.initials: T
authors.lastname: Shibazaki
authors.forename: M
authors.initials: M
authors.lastname: Tamura
authors.forename: K
authors.initials: K
authors.lastname: Endo
mesh_terms: D000328:Adult; D001254:Astrocytoma / Q000175:diagnosis / Q000000981:diagnostic imaging*; D001932:Brain Neoplasms / Q000175:diagnosis / Q000000981:diagnostic imaging*; D002560:Cerebrovascular Circulation; D003545:Cysteine / Q000031:analogs & derivatives*; D005625:Frontal Lobe / Q000000981:diagnostic imaging; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D015609:Organotechnetium Compounds; D013793:Thallium; D013794:Thallium Radioisotopes; D015899:Tomography, Emission-Computed, Single-Photon; D014057:Tomography, X-Ray Computed
chemical_list: D015609:Organotechnetium Compounds; D013794:Thallium Radioisotopes; C027549:thallium chloride; D013793:Thallium; C059659:technetium Tc 99m bicisate; D003545:Cysteine