Simultaneous PET and MR imaging
Simultaneous PET and MR imaging
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DOI：
10.1088/0031-9155/42/10/010
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发表时间：
1997-10-01
影响因子：
3.5
通讯作者：
Marsden, PK
中科院分区：
文献类型：
--
作者：
Shao, YP;Cherry, SR;Marsden, PK
我们已经开发了一种原型PET检测器，它与临床MRI系统兼容，可以同时提供PET和MR成像。该单片PET系统由48个2 × 2 × 10毫米(3)LSO晶体组成，其直径为38毫米，可放置在MRI系统的接收器线圈内，通过4米长和2毫米直径的光纤与主磁场外的三个多通道光电倍增管耦合。PET系统的空间分辨率为2mm，能量分辨率为41% (511 keV)，时间分辨率为20 ns。同时获得PET和MR幻象图像。
We have developed a prototype PET detector which is compatible with a clinical MRI system to provide simultaneous PET and MR imaging. This single-slice PET system consists of 48 2 x 2 x 10 mm(3) LSO crystals in a 38 mm diameter ring configuration that can be placed inside the receiver coil of the MRI system, coupled to three multi-channel photomultipliers housed outside the main magnetic field via 4 m long and 2 mm diameter optical fibres. The PET system exhibits 2 mm spatial resolution, 41% energy resolution at 511 keV and 20 ns timing resolution. Simultaneous PET and MR phantom images were successfully acquired.