Author/Authors :
Accorsi، نويسنده , , R. and Autiero، نويسنده , , M. and Celentano، نويسنده , , L. and Chmeissani، نويسنده , , Silvia M. F. Cozzolino، نويسنده , , R. and Curion، نويسنده , , A.S. and Frallicciardi، نويسنده , , P. and Laccetti، نويسنده , , P. and Lanza، نويسنده , , R.C. and Lauria، نويسنده , , A. and Maiorino، نويسنده , , Fلtima M. and Marotta، نويسنده , , M. and Mettivier، نويسنده , , G. and Montesi، نويسنده , , M.C. and Riccio، نويسنده , , P. and Roberti، نويسنده , , G. and Russo، نويسنده , , P.، نويسنده ,
Abstract :
We describe MediSPECT, a new scanner developed at University and INFN Napoli, for SPECT studies on small animals with a small field of view (FOV) and high spatial resolution. The CdTe pixel detector (a 256×256 matrix of 55 μm square pixels) operating in single photon counting for detection of gamma-rays with low and medium energy (e.g. 125I, 27–35 keV, 99mTc, 140 keV), is bump bonded to the Medipix2 readout chip. The FOV of the MediSPECT scanner with a coded aperture mask collimator ranges from 6.3 mm (system spatial resolution 110 μm at 27–35 keV) to 24.3 mm. With a 0.30 mm pinhole the FOV ranges from 2.4 to 29 mm (where the system spatial resolution is 1.0 mm at 27–35 keV and 2.0 mm at 140 keV). MediSPECT will be used for in vivo imaging of small organs or tissue structures in mouse, e.g., brain, thyroid, heart or tumor.
Keywords :
SPECT , Small animal imaging , CdTe , Medipix2
