[Evaluation of total and inflated lung volumes by a quantitative study using computerized tomography in patients with acute noncardiogenic pulmonary edema (ARDS)].

Our study was aimed at developing a method to assess lung volumes and relative percentages of well-inflated lung parenchyma in Adult Respiratory Distress Syndrome (ARDS) patients by processing conventional CT examinations of the lung and at investigating the prognostic value of CT findings. Fourteen patients (5 women and 9 men, age range: 35-79 years) admitted to the intensive care unit January, 1992, to June, 1994, because of severe ARDS, and with lung injury scores exceeding 2.5, were submitted to CT.

[Use of a new type of permanent caval filter in a case of recurrent pulmonary embolism].

We describe a case of postoperative recurrent pulmonary embolism, treated with a percutaneous caval filter ("Double hooks DF 06-Filcard"), that was useful for stemming the tide of venous thromboembolism starting from right leg deep venous thrombosis. We discuss diagnostic protocols, current indications to caval filtration, and the characteristic of an ideal caval filter.

Conflicting aspects of renal leiomyoma with different imaging techniques.

A case with benign renal leiomyoma examined by all the imaging techniques currently available is described. The aspects were conflicting, particularly with regard to sonography and magnetic resonance imaging, and the sole technique which provided more reliable information was the CT scan.

[Preoperative staging of rectal carcinoma by transrectal echography combined with pelvic computerized tomography].

The accurate staging of rectal carcinoma is very important for treatment planning. The histological data obtained from the surgical specimens of 22 patients with rectal carcinoma were compared with pre- and postoperative endorectal US findings and with preoperative CT results. According to an adapted version of the Astler and Coller classification, the different degrees of tumor spread into the rectal wall were represented as follows: stage A: 1 patient; stage B1: 5 patients; stage B2: 6 patients; stage C1: 1 patient; stage C2: 8 patients and stage D: 1 patient.

[Magnetic resonance and computerized tomography in the study of hypophyseal adenomas. Comparative results].

Magnetic resonance evaluation of 28 cases of pituitary adenomas has shown remarkable accuracy. Compared with HR-CT, MR gives comparable results in tumour identification. MR better demonstrates the suprasellar extension of macroadenomas and their relationship to the visual pathway and is more effective in showing direct and indirect signs of microadenomas.