Pharmacotherapy Safety 360°: NOLI NOCERE!

Safety of ultrasound contrast agents: "Primum non nocere"?

Diagnostic ultrasound contrast agents (UCA) are mainly indicated to enhance endocardial border delineation in patients with technically difficult echocardiographic examinations1. They have proven to increase the accuracy and reproducibility of regional and global left ventricular (LV) function assessment at rest2-4 and during stress5,6. UCA are also used for qualitative or quantitative determin...

360 x 360 Mosaics

Current mosaicing methods use narrow field of view cameras to acquire image data. This poses problems when computing a complete spherical mosaic. First, a large number of images are needed to capture a sphere. Second, errors in mosaicing make it difficult to complete the spherical mosaic without seams. Third, with a hand-held camera it is hard for the user to ensure complete coverage of the sph...

Primum non nocere.

The attending surgeon, still dressed in his tuxedo, was clearly drunk; the patient, dressed in a revealing party gown, had also had a few drinks. I was the junior resident on surgical call. I never dared to ask how the diagnosis was made but, somehow, during the party, the surgeon learned that she had an inflamed superficial varicosity of her upper thigh. He told her that she needed to have thi...

3d Reconstruction from 360 X 360 Mosaics 1 3d Reconstruction from 360 X 360 Mosaics

We are studying the geometry of a 360 x 360 mosaic image formation. A 360 x 360 mosaic camera model and a calibration procedure are proposed. It is shown that only one point correspondence is needed in order to acquire epipolarily rectified images. The 360 x 360 mosaic camera model is therefore determined by only one intrinsic parameter. It is shown that the relation between coordinates estimat...

Primum non nocere.