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Biomedical subjects

Laura Menchini

Publications and source records attributed to Laura Menchini.

3 recordsLinked to original sources

Magnetic Resonance Enteroclysis imaging of Crohn's.

AIM: The aim of our prospective study was to evaluate the diagnostic accuracy of MR Enteroclysis (MRE) to assess the extension and complications of Crohn's Disease (CD) in comparison with conventional enteroclysis (CE). MATERIALS AND METHODS: The study comprised 30 consecutive patients affected by Crohn's disease (18 women and 12 men; age range 16-76, mean age 40.6 years), who underwent conventional and MR enteroclysis. The MR enteroclysis protocol includes three sequences: coronal and axial FIESTA and ssFSE sequences and T1-3D-FSPGR sequences before and after intravenous injection of gadolinium, acquired after administration of 1.6-2 l of iso-osmolar polyethylene glycol solution via a nasojejunal catheter. Two radiologists blindly scored each sequence for opacification of the lumen, small bowel distension and image quality and evaluated the following parameters: presence of wall ulcers, pseudopolyps, stenoses and fistulae. RESULTS: The accuracy of the FIESTA sequence was significantly higher (p<0.01) than the ssFSE and 3D FSPGR sequences in the evaluation of lumen opacification and bowel distension, and for the overall quality of the images (p<0.01). The sensitivity and specificity of MRE were 82% and 100% for the visualisation of parietal ulcers, 87% and 100% for pseudopolyps, 100% and 88% for stenoses, 75% and 100% for parietal fistulae. High-grade stenoses with prestenotic dilation (n=6) and low-grade stenoses (n=9) were visualised both by MRE and CE. MRE also showed abscesses in two patients, not seen at CE. The FIESTA and ssFSE sequences had higher accuracy in the detection of wall ulcers and fistulae, whereas the 3D FSPGR sequences showed higher accuracy in the evaluation of wall thickening. CONCLUSIONS: MRE is able to demonstrate the spectrum of superficial, intramural and exoenteric alterations in Crohn's disease and closely correlates with CE in demonstrating alterations of the bowel lumen and wall.

Adolescent↗

Computer-aided diagnosis.

The evolution of logic thought in relation to the predominant recent advances in technology is analyzed. In fact, the computer was the prime mover of this major change. At present the use of sophisticated software has allowed to attain increasingly accurate levels of simulation of human reasoning. The computer has determined profound transformations in many sectors of work, study and research. Among these, it is extremely relevant how the computer has completely transformed medicine and the medical role, especially in the field of radiology. Expert systems are the most interesting and futuristic applications of artificial intelligence. These systems are able to reproduce on a computer the behavior of an expert human being. Some of the recent innovations introduced in the field of breast, thoracic and mainly neural pathology are illustrated.

Artificial Intelligence↗

Diagnostic imaging in a case of a cystic lesion of the pancreas.

The case of a patient admitted to hospital for symptoms characterized by upper abdominal pain of pancreatic type associated with vomiting, is discussed. MRI was performed. It documented a focal fluid lesion apparently in communication with the dilated main pancreatic duct showing filling defects. Based on previous radiologic examinations performed elsewhere and MRI findings the diagnostic suspicion was of a cystic lesion. MRI was performed again for re-evaluation and lithotripsy was done; the patient was discharged with the diagnosis of chronic pancreatitis from alcohol abuse.

Abdominal Pain↗