[Comparative emission tomographic and transmission tomographic studies of cranial and intracranial diseases (author's transl)].

A comparative study was performed in 58 patients with brain lesions using emission computed tomography (ECAT -- single photon, Cleon 710) and transmission computed tomography (TCAT). ECAT better demonstrates vascular functional i.e. physiologic disturbances. A disadvantage of ECAT is that there is no way to produce survey scans of the head. Relatively long scanning times and moderate spatial resolution when compared with TCAT furthermore reduces the value of ECAT. It is expected that the technical development of ECAT will soon alter the situation.