Study of Patients Self-Training Influence on Peripheral Neuropathies Diseases Diagnosis through D.I.T.A Device.

In our daily life, the sight and the sense of touch play a fundamental role in objects recognitions. This process is helped by the experience: if a subject has already seen or already touched an object in the past, he will recognize it more easily in the future. Following this assumption, the authors of this paper wanted to investigate if the experience can influence the results of a clinical examination where the subject has an active role.

Density discrimination with occlusions in 3D clutter.

We examined how well human observers can discriminate the density of surfaces in two halves of a rotating three-dimensional cluttered sphere. The observer's task was to compare the density of the front versus back half or the left versus right half. We measured how the bias and sensitivity in judging the denser half depended on the level of occlusion and on the area and density of the surfaces in the clutter.

Signs of depth-luminance covariance in 3-D cluttered scenes.

In three-dimensional (3-D) cluttered scenes such as foliage, deeper surfaces often are more shadowed and hence darker, and so depth and luminance often have negative covariance. We examined whether the sign of depth-luminance covariance plays a role in depth perception in 3-D clutter. We compared scenes rendered with negative and positive depth-luminance covariance where positive covariance means that deeper surfaces are brighter and negative covariance means deeper surfaces are darker.

Double synchronous occluding tumors of the large bowel: a report of three cases.

The development of acute large bowel obstruction secondary to colorectal cancer is very common and, while right hemicolectomy with a primary anastomosis is the accepted procedure for right-sided obstructing tumors, the different strategies performed for left-sided tumors, including staged procedures, Hartmann's procedure, and resection with anastomosis, remain a subject of controversy. We present herein the case reports of three patients who developed two synchronous occlusive tumors of the large bowel. Complete exploration of the entire colon is highly recommended to assess the most feasible therapeutic option in such cases, as the second occlusive tumor, often hidden within the bowel segments, can cause failure of limited resection or intestinal decompression.

[Diagnostic accuracy of computerized tomography. Preoperative staging of gastric cancer].

"Imaging techniques" have assumed greater clinical value in the further assessment of an endoscopically or radiologically verified neoplastic lesion of the stomach through the ability to evaluate its extent of invasion, metastatic involvement of lymphnodes and/or distant organs. US, CT, and more recently NMR are non-invasive modalities that provide an accurate preoperative assessment of potential surgery decision making. Common current practice of preoperative CT in gastric cancer and relevant results documented in letterature, have inclined many clinicians in its use in staging this disease.