Abstract: A system and method for quantitative determination of density of vasa vasorum in an arterial wall that utilizes a detection of temporal and/or spatial displacement of blood-flow with the use of intravascular ultrasound system. Locations of extrema in the spatial distribution can be identified to detect vascular defects. The system and method support a clinically-useful application for early detection of indicators of diseases, such as coronary atherosclerosis.

Abstract: A system and method for quantitative determination of density of vasa vasorum in an arterial wall that utilizes a detection of temporal and/or spatial displacement of blood-flow with the use of intravascular ultrasound system. Locations of extrema in the spatial distribution can be identified to detect vascular defects. The system and method support a clinically-useful application for early detection of indicators of diseases, such as coronary atherosclerosis.

Abstract: Two x-ray CT images are acquired of arterial plaque using x-rays at two different energy levels. The reconstructed images are normalized by adjusting pixel brightness until pixels depicting a region containing calcium have substantially the same brightness. The normalized images are subtracted to produce an image that depicts iron in the arterial plaque.

Abstract: Two x-ray CT images are acquired of arterial plaque using x-rays at two different energy levels. The reconstructed images are normalized by adjusting pixel brightness until pixels depicting a region containing calcium have substantially the same brightness. The normalized images are subtracted to produce an image that depicts iron in the arterial plaque.

Abstract: This document provides materials and methods related to tissue scaffolds for use in replacing or augmenting various tissues in the body. For example, flexible tissue scaffolds with controlled pore geometry and methods of enhancing solute transport using rhythmic compression (e.g., 1.

Abstract: A method for temporally imaging a cyclic body structure during a predetermined phase of its cycle using a CT scanner of the type having a rotating radiation source. In one embodiment the image or other display is generated using data produced when the radiation source is at a predetermined position when the body structure is in the predetermined phase. The method can be performed by using only data collected when the radiation source is at the predetermined position and the body structure is in the predetermined phase, by stimulating the body structure so the phase of the body structure and location of the radiation source are synchronized, or by controlling the motion of the radiation source so the location of the radiation source and the phase of the body structure are synchronized.