Extended High Efficiency Computed Tomography with Optimized Recursions

High Resolution Computed Tomography

High-resolution computed tomography

This paper investigates high-resolution reconstructions from eeciently sampled data in parallel-beam tomography, in particular local tomography. A class of sampling schemes is deened and characterized, and it is shown that the standard scheme and the interlaced scheme of Cormack are most promising. An error analysis for the ltered backprojection algorithm for both global and local tomography is...

High Resolution Computed Tomography

Advanced NDT with high resolution Computed Tomography

In today’s quality market, achieving the smallest feature recognition possible in the inspection process has become a higher priority than ever before. Due to complex geometries and miniaturization of many high reliability components in the automotive, electronics and aerospace industries, achieving this level of feature recognition has also become increasingly difficult. Due to inherent limita...

Should all high-risk patients be screened with computed tomography angiography? Screening High-Risk Patients With Computed Tomography Angiography

Earlier this year, among the usual menu of worrisome daily news, Americans woke up to learn that for the first time in the nation’s history, annual mortality caused by cancer had declined significantly.1 Cancer experts told us in addition that such decline resulted mainly from a reduction in smoking among American men but also as a consequence of successful screening programs for breast and col...