Bibliogr. s. 74

Background: The aim of the study is to evaluate the CT and MR visualization of the sinusitis. The second focus is to investigate usefulness of digital fusion of these examinations. Material/Methods: 28 patients with suspicion of the sinusitis underwent the CT and MR exams. Finally the CT/MR digital fusion of all the examinations, using the own program, was performed. Evaluation of the quality of imaging the bones, soft tissues and mucosa was applied in all the techniques. Results: Both the modalities well depicted the soft and mucosal elements with a slight superiority of MR in imaging the discrete mucosal thickening. The small bones were better presented in CT. The fused images correctly depicted even the discrete mucosal changes on the background of small bony structures. Conclusions: CT better presented bone elements of sinuses; MR is slightly superior in imaging the mucosal thickening. Their digital fusion unified the advantages of both.