title: [A trial of 89Sr bremsstrahlung SPECT].
abstract: OBJECTIVE
  89Sr bremsstrahlung SPECT imaging has been evaluated for detecting the more detailed whole body 89Sr distribution.
  
  
  METHODS
  89Sr bremsstrahlung whole body planar and merged SPECT images were acquired by using two detectors type SPECT system. Energy window A (100 keV +/- 50%) for planar imaging, and energy window A plus adjacent energy window B (300 keV +/- 50%) for SPECT imaging were set on the continuous spectrum. Those images were compared with 99mTc-H-MDP whole body planar and merged SPECT images. To verify the accumulation obtained by bremsstrahlung whole body planar and merged SPECT image, we made original phantom based on the counts of clinical study imaging.
  
  
  RESULTS
  On 89Sr bremsstrahlung merged SPECT image, focal accumulations were recognized in the parts of 99mTc-H-MDP merged SPECT accumulation. Focal accumulations were much clearer on 89Sr bremsstrahlung merged SPECT imaging than those of whole body planar image of 89Sr bremsstrahlung. In phantom study, counts of each concentration linearly increase as acquisition time and number of rotation increase on planar and SPECT images.
  
  
  CONCLUSIONS
  89Sr bremsstrahlung merged SPECT imaging would be useful for detecting the more detailed whole body 89Sr distribution.
authors: Department of Radiology, Fujita Health University School of Medicine.
authors: Seiichiro
authors: S
authors: Ota
authors: Hiroshi
authors: H
authors: Toyama
authors: Masaki
authors: M
authors: Uno
authors: Masaki
authors: M
authors: Kato
authors: Masanobu
authors: M
authors: Ishiguro
authors: Takahiro
authors: T
authors: Natsume
authors: Fumitaka
authors: F
authors: Ito
authors: Kaoru
authors: K
authors: Kikukawa
authors: Masanori
authors: M
authors: Tadokoro
authors: Takashi
authors: T
authors: Ichihara
authors: Kazuhiro
authors: K
authors: Katada
mesh_terms: D000369:Aged, 80 and over; D006801:Humans; D008297:Male; D008875:Middle Aged; D019047:Phantoms, Imaging; D019275:Radiopharmaceuticals; D013324:Strontium; D013669:Technetium Tc 99m Medronate; D015899:Tomography, Emission-Computed, Single-Photon
chemical_list: D019275:Radiopharmaceuticals; C025700:strontium chloride; D013669:Technetium Tc 99m Medronate; D013324:Strontium