High-resolution and high-sensitivity SPECT imaging of breast phantoms
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- 作者：Loudos ; G.K. ; Giokaris ; N.D. ; Mainta ; K. ; Sakelios ; N. ; Stiliaris ; E. ; Karabarbounis ; A. ; Papanicolas ; C.N. ; et. al.
- 关键词：87.58.Ce ; 87.57.Ce ; 29.40.Gx ; γ ; -Camera ; High-resolution ; Breast phantom ; SPECT ; PSPMT
- 刊名：Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
- 出版年：2004
- 出版时间：July 11, 2004
- 年：2004
- 卷：527
- 期：1-2
- 页码：97-101
- 全文大小：532 K
文摘
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 0.25ml 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.