Рентгенология & Радиология, 2010, XLІХ 14-22

Possibilities of the new hybrid technology single photone emmission computer technology/computer tomography (SPECT/CT) and the first impressions of its application
I. Kostadinova

Abstract.

With the help of the new hybrid technique SPECT/CT it is possible, using the only investigation, to acquire acombine image of the investigated organ, visualizing its function and structure. Combining the possibilities of the new multimodality method, which combines the possibilities of the Single Photon Emission Computer Tomography – SPECTand Computer Tomography – CT, it is possible to preciselylocalize the pathologically changed organs function. With the further combination of the tomographic gamma camera with diagnostic CT, a detailed morphological evaluation of the finding was possible. The main clinical application of the new hybrid diagnosticis in the fields of cardiology, oncology, orthopedics with moreand more extension of those, not connected with oncology,such as – thyroid, parathyroid, brain (especially localization of the epileptic foci), visualization of local infection and recently for the purposes of the radiotherapy planning. According tothe literature data, around 35% of SPECT-investigations haveto be combined with CT in order to increase the specifi city ofthe diagnosis, which changes the interpretation of the result in 56% of the cases. After installation of the SPECT/CT camera in the University
hospital „Alexandrovska” in January 2009, the following changes have been done: the number of the investigated patientshave increased, including number of heart, thyroid (especiallyscintigraphy with 131I), bones and parathyroid glands. As aresult of the application of the hybrid technique, a shortage
of the investigated time was realized and a decrease prizein comparison with the individual application of the investigations.Summarizing the literature data and the preliminary impression of the fi rst multimodality scanner in our country in theUniversity hospital ”Alexandrovska” it could be said, that there
is continuously increasing information for the new clinical applications of SPECT/CT. It is now accepted, that its usage willincrease in the next years, because of the received valuableclinical functional and morphological information.

Key words: SPECT/CT. CLINICAL APPLICATION