An integrated PET-SPECT small animal imager: preliminary results

被引：41

作者：

Del Guerra, A

Damiani, C

Di Domenico, G

Motta, A

Giganti, M

Marchesini, R

Piffanelli, A

Sabba, N

Sartori, L

Zavattini, G

机构：

[1] Univ Pisa, Dept Phys, I-56100 Pisa, Italy

[2] Ist Nazl Fis Nucl, Pisa, Italy

[3] Univ Ferrara, Dept Phys, I-44100 Ferrara, Italy

[4] Ist Nazl Fis Nucl, Ferrara, Italy

[5] Univ Ferrara, Dept Clin Expt Med, I-44100 Ferrara, Italy

来源：

IEEE TRANSACTIONS ON NUCLEAR SCIENCE | 2000年 / 47卷 / 04期

关键词：

D O I：

10.1109/23.873012

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

We have successfully built and characterised a small animal PET based on 4 rotating detectors with a spatial resolution < 2 mm over its field of view and a sensitivity of 640 cps/mu Ci at the centre. The scanner is based on four matrices of 400 YAP:Ce finger crystals (2x2x30 mm(3) each) coupled to Position Sensitive PhotoMultipliers (Hamamatsu R2486-06.) We have now applied two high resolution collimators to two opposite detectors, hence realising an integrated PET-SPECT scanner for small animals. The collimators are made of lead with 20 mm long, 0.6 mm hexagonal holes with 0.15mm septa. The read-out and data acquisition system are handled by NIM-CAMAC standard electronics. The Field Of View (FOV) of the tomograph has a diameter of 4 cm and an axial length of 4 cm in both PET and SPECT configuration which is appropriate for mice and rat studies.

引用

页码：1537 / 1540

页数：4

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