Author/Authors :
Loudos، نويسنده , , G.K and Giokaris، نويسنده , , N.D and Mainta، نويسنده , , K and Sakelios، نويسنده , , N and Stiliaris، نويسنده , , E and Karabarbounis، نويسنده , , A and Papanicolas، نويسنده , , C.N and Spanoudaki، نويسنده , , V and Nikita، نويسنده , , K.S. and Uzunoglu، نويسنده , , N.K and Archimandritis، نويسنده , , S.C. and Varvarigou، نويسنده , , A.D. and Stefanis، نويسنده , , K.N and Majewski، نويسنده , , S and Weisenberger، نويسنده , , A and Pani، نويسنده , , R and Maintas، نويسنده , , D، نويسنده ,
Abstract :
A small field of view gamma camera based on a Position Sensitive Photomultiplier Tube has been used for tomoscintigraphic imaging of breast phantoms. The breast phantoms consist of small hot quantities of 99mTc placed in a plastic pot filled with a lower concentration 99mTc solution. The volume of the hot quantities varied from 0.5 to 0.25 ml and the target to background activity ratio varied from 3:1 to 5:1. The impact of the acquisition time per projection and the number of projections on image quality has been investigated.
Keywords :
?-camera , high-resolution , Breast phantom , SPECT , PSPMT
