Bladder cancer diagnosis: the role of CT urography.

Aims And Background: To evaluate the diagnostic performance of computed tomography urography (CTU), we first compared it with cystoscopy and subsequently analyzed which CTU phase of acquisition has the highest diagnostic accuracy in identifying bladder cancer.

Methods: In 2013, 177 patients underwent both cystoscopy and CTU. For all acquisition phases, we calculated sensitivity, specificity, diagnostic accuracy, and positive and negative predictive value (PPV and NPV, respectively).

Evaluation of second cancer induction risk by CT follow-up in oncological long-surviving patients.

The goal of establishing prompt localization of the malignant spread or recurrence of a tumor has found a powerful solution in the definition of follow-up protocols, which include the indication for CT scans on an annual or semiannual basis. In the case of long-surviving patients, however, this approach will lead to a considerable integrated dose level over a period of several years after recovery from the illness. Pathologies treated primarily by surgery and/or chemotherapy have been considered, not taking into account cancers treated with adjuvant or radical radiotherapy.

[Angiographic diagnosis in intestinal angiodysplasia. Series of 13 cases].

The authors report 13 cases of intestinal bleeding; while serials endoscopic and radiological examinations had been negative, arteriography allowed intestinal angiodysplasia to be diagnosed, and detected 18 lesions (12 of the right colon, 6 of the small bowel), confirming the fundamental role of arteriography in the diagnosis the localization and extension of these lesions. The importance of accuracy is emphasized both in the performance and in the evaluation of angiographic findings, in order to avoid missing multiple localizations (colon and small bowel). The authors illustrate and evaluate the different angiographic findings.

[Arrhythmogenic dysplasia of the right ventricle. Evaluation of 7 cases using computerized tomography].

Right ventricular arrhythmogenic dysplasia is a rare cardiomyopathy which involves the right ventricle either totally or partially. Up to now diagnoses have been based on Ecg, hemodynamics, angiography and echocardiography. This paper deals with the first 7 patients examined also by means of Computed Tomography.

[Thrombosis of the false lumen in acute aortic dissection. CT diagnosis].

Three cases are reported of acute aortic dissection with complete thrombosis of the false channel, which is a very uncommon event in De Bakey's I and II type aortic dissections. The 3 patients entered hospital because of severe thoracic pain without any ECG sign of myocardial infarction. Emergency CT showed evidence of pericardial effusion suggesting hemopericardium, enlargement of the ascending aorta and a peripheral semilunar filling defect which caused a slight deformation of the true channel.

[Heart transplants. The value of computerized tomography].

In 9 of 12 patients who underwent cardiac transplantation computed tomography was performed. In 5 of them CT was obtained also before the surgical treatment. In all patients angio-CT technique was performed, while the ECG-gated technique was employed only before surgery.