Comprehensive definition of a giant ascending aortic pseudoaneurysm

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Diagnostic performance of ultrasound in patients with suspected brachial plexus lesions in adults: a multicenter retrospective study with MRI, surgical findings and clinical follow-up as reference standard.

PURPOSE: To evaluate brachial plexus ultrasound (US) performance in a large multicenter study. MATERIALS AND METHODS: The research was approved by the Institutional Review Boards, and all patients gave written informed consent. A multicenter retrospective trial including three centers was performed between March, 2006 and April, 2011. A total of 204 patients who received a brachial plexus ultrasound requested by the referring physician were enrolled: magnetic resonance imaging, surgical findings and clinical follow-up of at least 12\ua0months were used as the reference standard. Sensitivity, specificity with 95\ua0\% confidence intervals (CIs), positive predictive value (PPV), pre-test-probability (the prevalence), negative predictive value (NPV), pre- and post- test odds (OR), likelihood ratio for positive results (LH+), likelihood ratio for negative results (LH-), accuracy and post-test probability (post-P) were reported on a per-patient basis. RESULTS: The overall sensitivity and specificity with 95\ua0\% CIs were: 0.76 (0.75-0.97); 0.96 (0.77-0.89). Overall PPV, pre-test probability, NPV, pre-OR, post-OR, LH+, LH-, Accuracy and post-P were: 0.93/0.43/0.84/0.75/0.75/13.4/17.6/0.25/0.88/0.93, respectively. CONCLUSIONS: The specificity of brachial plexus US in patients suspected of having a brachial plexus lesion is very high

Diagnostic accuracy of MRI in adults with suspect brachial plexus lesions: A multicentre retrospective study with surgical findings and clinical follow-up as reference standard.

OBJECTIVE: To evaluate brachial plexus MRI accuracy with surgical findings and clinical follow-up as reference standard in a large multicentre study. MATERIALS AND METHODS: The research was approved by the Institutional Review Boards, and all patients provided their written informed consent. A multicentre retrospective trial that included three centres was performed between March 2006 and April 2011. A total of 157 patients (men/women: 81/76; age range, 18-84 years) were evaluated: surgical findings and clinical follow-up of at least 12 months were used as the reference standard. MR imaging was performed with different equipment at 1.5T and 3.0T. The patient group was divided in five subgroups: mass lesion, traumatic injury, entrapment syndromes, post-treatment evaluation, and other. Sensitivity, specificity with 95\% confidence intervals (CIs), positive predictive value (PPV), pre-test-probability (the prevalence), negative predictive value (NPV), pre- and post-test odds (OR), likelihood ratio for positive results (LH+), likelihood ratio for negative results (LH-), accuracy and post-test probability (post-P) were reported on a per-patient basis. RESULTS: The overall sensitivity and specificity with 95\% CIs were: 0.810/0.914; (0.697-0.904). Overall PPV, pre-test probability, NPV, LH+, LH-, and accuracy: 0.823, 0.331, 0.905, 9.432, 0.210, 0.878. CONCLUSIONS: The overall diagnostic accuracy of brachial plexus MRI calculated on a per-patient base is relatively high. The specificity of brachial plexus MRI in patients suspected of having a space-occupying mass is very high. The sensitivity is also high, but there are false-positive interpretations as well

Relazione sui metodi di localizzazione delle emissioni acustiche

Interreg IIIA Project Alcotra n.196 PERMAdataROC - Rapporto POLITO-DISTR/CNR 06/200

Relazione su installazione e analisi dati sistema di monitoraggio Matterhorn

Interreg IIIA Project Alcotra n.196 PERMAdataROC - Rapporto POLITO-DISTR/CNR 07/200

Relazione su installazione e analisi dati sistema di monitoraggio Matterhorn

Interreg IIIA Project Alcotra n.196 PERMAdataROC - Rapporto POLITO-DISTR/CNR 07/200