Bone equivalent liquid solution to assess accuracy of transmission measurements in SPECT and PET

被引：25

作者：

deDreuille, O ^{[1
]}

Strijckmans, V ^{[1
]}

Almeida, P ^{[1
]}

Loch, C ^{[1
]}

Bendriem, B ^{[1
]}

机构：

[1] CEA,SERV HOSP FREDERIC JOLIOT,F-91406 ORSAY,FRANCE

来源：

IEEE TRANSACTIONS ON NUCLEAR SCIENCE | 1997年 / 44卷 / 03期

关键词：

D O I：

10.1109/23.596985

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：

Quantitation in Emission Tomography (PET and SPECT) requires that several physical factors are taken into account. Attenuation, which can be determined on SPECT and PET devices, can be corrected using transmission tomography. Here we quantitatively compared the relative performance of transmission scans in SPECT and PET using a calibrated liquid solution with a linear attenuation coefficient (mu) nearly equivalent to that of skeletal cranium bone over the range of energies 50 to 600 keV. We showed that contrast recovery are similar in PET and SPECT for large structures (> 30 mm), but higher in PET as object size decreases.

引用

页码：1186 / 1190

页数：5