title: [Testing performance of the improved pinhole collimator and its application to small animals].
abstract: Testing performance of the improved pinhole collimator of 1.5 mm aperture attached to the gamma camera was carried out with three kinds of radionuclides, 99mTc, 67Ga and 131I, using a hand-made phantom. The results obtained in this experiment were compared to those obtained with a human pinhole collimator of 4 mm aperture. Those were nearly understood by taking account of the effective aperture of a pinhole collimator for each effective photon energy. And all scintigrams obtained from rats with various scintigraphy showed high resolution images.
authors.affiliation: Department of Dental Radiology, Higashi-Nippon-Gakuen University School of Dentistry, Hokkaido, Japan.
authors.forename: H
authors.initials: H
authors.lastname: Takano
authors.forename: T
authors.initials: T
authors.lastname: Kaku
authors.forename: T
authors.initials: T
authors.lastname: Sano
authors.forename: S
authors.initials: S
authors.lastname: Maeda
authors.forename: K
authors.initials: K
authors.lastname: Goto
authors.forename: M
authors.initials: M
authors.lastname: Kaneko
mesh_terms: D000818:Animals; D005710:Gallium Radioisotopes; D007457:Iodine Radioisotopes; D011877:Radionuclide Imaging / Q000295:instrumentation*; D051381:Rats; D013667:Technetium
chemical_list: D005710:Gallium Radioisotopes; D007457:Iodine Radioisotopes; D013667:Technetium