RESUMEN

The construction, operation and physical characteristics of a single-section multi-detector single-photon-emission scanner are described. The machine has 24 detectors arranged along the sides of a square. Movements and data collection are under the control of a series of distributed microprocessors. Both head and trunk tomograms can be produced. The spatial resolution at the collimator focus is 9 mm in the transverse plane, and the effective slice thickness is 14 mm. The volume sensitivity is 300 counts/s kBq ml with a 20 cm diameter cylindrical phantom filled with 99Tcm solution. The application of this machine to the examination of the brain, liver and heart has been found to be clinically useful.

Asunto(s)

Tomografía Computarizada de Emisión/instrumentación , Encéfalo/diagnóstico por imagen , Corazón/diagnóstico por imagen , Humanos , Hígado/diagnóstico por imagen , Control de Calidad , Tomografía Computarizada de Emisión/métodos , Tomografía Computarizada de Emisión/normas