[Clinical importance of emission-computed tomography of the skull in bone scintigraphy].

Sixty-five ECT examinations were carried out in patients with abnormalities of the skull base and paranasal sinuses and the results were compared with ordinary scintigraphy and CT. ECT provides additional information as compared with scintigraphy by its images in three planes, which are free of superimposition. This is of value in the localisation of the lesion and for determining its extent and activity. It is a functional tomographic method which is complementary to the morphological information provided by CT. The indications and value of the method in inflammatory, metastatic and neoplastic diseases are discussed.