Abstract
A four-view brain SPECT (single photon emission computed tomography) detector design which addresses the volume sensitivity and resolution needed for effective SPECT imaging of the total brain volume is described. This design has the sensitivity advantages of an array of four discrete cameras but functions essentially like a single camera head. Four separate flat crystals are surrounded with PMTs (photomultiplier tubes) which perform as a single array for photon event detection. Unique windows on adjoining crystal edges are coupled to corner light pipe/PMT assemblies. Reduced edge packing range and sharing of corner PMTs allow a compact assembly volume, even with 3-in PMTs. The imaging volume is approximately a 23-cm cube, and the imaging electronics are nearly the same as used in a single 64-PMT gamma camera. >
Published Version
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