1990 IEEE Nuclear Science Symposium Conference Record
DOI: 10.1109/nssmic.1990.693555
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Physical Characteristics Of The Ecat 953b/31: A New High Resolution Brain Positron Tomograph

Abstract: We present a new high spatial resolution brain positron tomograph the ECAT 953B/31. The machine consists of two 76.5 cm diameter rings (patient port diameter : 36 cm) made of 24 8x8 BGO detector blocks each, each block being coupled to four 1 incha Hammamatsu phototubes. The machine has fifteen 9 cm x 1 mm motorized removable septa which allows reconstruction of 31 slices 3.375 mm apart.The transaxial resolution (FWHM) in the reconstructed image (with wobbling) is 4.5 mm at center, 5.2 mm (tangential) and 5.6 … Show more

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Cited by 6 publications
(4 citation statements)
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“…PET data were acquired with a Siemens ECAT 953b camera in the 2D wobble mode. The spatial characteristics of this instrument have been extensively documented [18] , [19] . In the 2D wobble mode it produces 31 2D images with an intrinsic resolution of approximately 5.4 mm (full width half maximum; FWHM) in plane and 4.2 mm axially.…”
Section: Methodsmentioning
confidence: 99%
“…PET data were acquired with a Siemens ECAT 953b camera in the 2D wobble mode. The spatial characteristics of this instrument have been extensively documented [18] , [19] . In the 2D wobble mode it produces 31 2D images with an intrinsic resolution of approximately 5.4 mm (full width half maximum; FWHM) in plane and 4.2 mm axially.…”
Section: Methodsmentioning
confidence: 99%
“…Subjects were examined using an ECAT 953B/31 (CTI‐Siemens) tomograph that collects 31 simultaneous 3.4‐mm–thick planes, with a transaxial resolution of 6 mm 9. Subjects were positioned in the tomograph using a three‐dimensional laser alignment, and a thermoplastic mask molded to each patient's face restrained head movements.…”
Section: Methodsmentioning
confidence: 99%
“…PET. PET studies were done with the Siemens 953b in the twodimensional mode with 31 simultaneous slices with 3.4 mm center-tocenter slice separation (Spinks et al, 1988;Mazoyer et al, 1991). Attenuation factors were measured for each subject by using rotating rod sources of [ 68 Ge]/[ 68 Ga].…”
Section: Methodsmentioning
confidence: 99%