SemiSPECT: A small-animal single-photon emission computed tomography (SPECT) imager based on eight cadmium zinc telluride (CZT) detector arrays

The Cadmium Zinc Telluride (CZT) Detector Array Innovation Pathway

This pathway describes the development of soft gamma-ray/hard x-ray detector arrays at NASA’s Goddard Space Flight Center (GSFC, or Goddard), through a collaboration between the gamma-ray spectroscopy group and the detector branch. The Cadmium Zinc Telluride (CdZnTe, or CZT) detectors which resulted from this decade-long development were first flown on the wildly successful SWIFT mission in 200...

Evaluation of a small cadmium zinc telluride detector for scintimammography.

UNLABELLED The purpose of this study was to evaluate a small semiconductor-based gamma camera that may have applications in scintimammography. METHODS A small cadmium zinc telluride (CZT) detector was evaluated. The detector had a field of view of 20 x 20 cm with detector elements of 2.5 x 2.5 mm in size. Both short-bore (35 mm) and long-bore (50 mm) collimators, matched to the geometry of th...

Single-photon emission computed tomography (SPECT) and intractable epilepsy.

TAPANI TIKKAKOSKI Editor In patients with intractable epilepsy refractory to medication, surgical treatment may be needed. Magnetic resonance imaging (MRI) is an essential neuroimaging tool in assisting the identifi cation of epileptogenic lesions. MRI at 3T has been found to perform better than 1.5T in terms of image quality, detection of structural lesions, and characterization of lesions. Th...

Single Photon Imaging and Instrumentation

Abbreviations 2D, 3D 2-dimensional, 3-dimensional CZT cadmium zinc telluride EKG electric signal from the heart FBP filtered backprojection FOV field-of-view GE General Electric Ge(Li) germanium detector doped with lithium MLEM maximum likelihood expectation maximization NaI(Tl) sodium iodine doped with thallium NM nuclear medicine OSEM ordered subset expectation maximization PET positron emiss...

Single Photon Emission Computed Tomography