CME 11 Session – EANM’12

(2)

Radiological Information in Hybrid Imaging    

Educational objectives:

  1. Define the added contribution of hybrid imaging to PET and SPECT alone
  2. Understand the added value of diagnostic CT, with or without contrast media, to the whole clinical information
  3. Improve the capability to detect and interpret physiological and pathological data at CT, also outside of areas of radiotracer’s concentration

Summary:
One of the most relevant recent contribution to Diagnostic Imaging has been the possibility to obtain a fused image containing together the morphostructural and functional information. A major improvement has been determined by the commercial diffusion of hybrid machines allowing the simultaneous acquisition of PET (or SPECT) and CT or, more recently, of PET and MRI. In the development of hybrid machines, the contribution of CT has been at the beginning secondary, being only related to the attenuation correction and lesion’s localization. At present, the morphostructural information provided by CT has reached an autonomous “diagnostic” role, further increased when using a standard radiological procedure with or without contrast media. This added value may be present both in better defining areas of radiotracer’s concentration and in detecting further alterations, non evident at PET or SPECT. In this scenario is becoming clinically relevant for the nuclear physician to recognize and interpret morphostructural data both to improve the clinical accuracy and to avoid mistakes. In particular, hazards may be present when clinical emergencies only evident at CT are not recognized. 
This CME session is directed primarily towards nuclear physicians who have to learn more about the morphostructural information allowed by CT, also using contrast media. The interactive session is organized on the basis of the presentation of the complementary and/or added contribution of radiological data acquired in the most diffuse PET and SPECT studies.

Key Words:
Hybrid Imaging, PET, SPECT, CT, Contrast Media

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