[Tumors of the nose, paranasal sinuses and facial bones: the role of computerized tomography and MRI in the assessment of the damage]. / Tumori del naso, dei seni paranasali e delle ossa facciali: apporto della tomografia computerizzata e della risonanza magnetica nell'accertamento della estensione della malattia.

The authors examine the use of CT and MR comparatively in tumours of nose, paranasal sinuses and facial bones. Both CT and MR are much more useful to assess the real extent of the pathology than to give specific diagnose. The resolution of the images and the possibility of examining them on many different planes give evident advantage to MR as regards the evaluation of tumors in this region. Nevertheless, CT with bone algoritme gives better details about bone structure.

[Role of CT and MR in the assessment of lumbar degenerative disk disease]. / Ruolo della TC e della RM nella valutazione della patologia degenerativa discale lombare.

The application of CT and MR techniques for the evaluation of degenerative disease of lumbar disk is illustrated in this work. A critical review of the literature was done.

[Tumors of the temporal bone and the cerebellopontine angle. Diagnosis, characterization and assessment of extension by using imaging technics]. / Tumori dell'osso temporale e dell'angolo ponto-cerebellare. Diagnosi, caaratterizzazione e bilancio di estensione con le tecniche ad immagini.

We discuss in this paper the reliability of neuroimaging techniques in the diagnosis of neoplastic masses of the posterior-lateral skull base. We also discuss the role of TC and MRI in the evaluation of the extension pattern of these masses.

Computed tomography for preoperative assessment of T3 and T4 bronchogenic carcinoma.

Between January 1986 and January 1991, 175 patients with suspected T3 or T4 bronchogenic carcinoma underwent computed tomographic (CT) examination of the chest before thoracotomy. We considered two groups of patients: group 1 includes 98 patients with a paramediastinal mass on standard chest X-ray; invasion of hilar and mediastinal structures was preoperatively investigated with CT and then assessed at thoracotomy. The sensitivity, specificity and accuracy were 72%, 75% and 73%, respectively; positive and negative predictive values were 71% and 76%. In group 2 77 patients had a peripheral tumor suspected of invading the parietal pleura and the soft tissues of the chest wall (patients with evident rib or vertebral invasion were not included). Sensitivity, specificity and accuracy of CT were 52%, 86% and 71%, respectively; positive and negative predictive values were 74% and 70%. We conclude that CT with injection of contrast material is indispensable when direct lung cancer infiltration must be ruled out; its accuracy is however not sufficient to be relied upon in all patients.