An economical dual-modality small animal imaging system with application to studies of diabetes

Author

Welsh, R.E. ; Brewer, P. ; Bradley, E.L. ; Gleason, K.K. ; Kross, B. ; Majewski, S. ; Popov, V. ; Qian, J. ; Ranck, A. ; Saha, M.S. ; Smith, K. ; Smith, M.F. ; Weisenberger, A.G. ; Wojcik, R.

Author_Institution

Dept. of Phys., Coll. of William & Mary, Williamsburg, VA, USA

Volume

3

fYear

2001

fDate

6/23/1905 12:00:00 AM

Firstpage

1845

Lastpage

1848

Abstract

We have developed an economical dual-modality nuclear imaging system comprised of two Hamamatsu 125 mm diameter position sensitive photomultiplier tubes (PSPMT) viewing pixelated scintillators and a small fluoroscopic X-ray system (Lixi, Inc.). Collimators placed between the animal and the scintillators can be readily interchanged and include CuBe parallel-hole collimators with a range of resolution/sensitivity combinations as well as brass pinhole collimators with various pinhole diameters. The small X-ray fluoroscope provides 5 cm diameter images, several of which can readily be combined to provide structural information from the animal under study. The system has been used to follow the metabolism of compounds tagged with ¹²⁵I. Biological information has been obtained on the uptake of tagged insulin and tumor necrosis factor-alpha (TNFα) thus demonstrating the applicability of this system for in vivo analysis of diseases such as diabetes

Keywords

diagnostic radiography; diseases; iodine; radioisotope imaging; solid scintillation detectors; veterinary medicine; ¹²⁵I; CuBe parallel-hole collimators; I; brass pinhole collimators; diabetes; economical dual-modality nuclear imaging system; economical dual-modality small animal imaging system; metabolism; pixelated scintillators; position sensitive photomultiplier tubes; small X-ray fluoroscope; small fluoroscopic X-ray system; structural information; tagged insulin; tumor necrosis factor-alpha; Animals; Biochemistry; Collimators; Insulin; Neoplasms; Nuclear imaging; Optical imaging; Photomultipliers; Pixel; X-ray imaging;

fLanguage

English

Publisher

ieee

Conference_Titel

Nuclear Science Symposium Conference Record, 2001 IEEE

Conference_Location

San Diego, CA

ISSN

1082-3654

Print_ISBN

0-7803-7324-3

Type

conf

DOI

10.1109/NSSMIC.2001.1008701

Filename

1008701