TCT-792 Direct 3D Quantitative Measurements and Optimal View Determination for TAVR Procedure by Computed Tomography

Determination of optimal view angles for quantitative facial image analysis.

In quantitative evaluation of facial skin chromophore content using color imaging, several factors such as view angle and facial curvature affect the accuracy of measured values. To determine the influence of view angle and facial curvature on the accuracy of quantitative image analysis, we acquire cross-polarized diffuse reflectance color images of a white-patched mannequin head model and huma...

Limitations of peripheral quantitative computed tomography metaphyseal bone density measurements.

CONTEXT Peripheral quantitative computed tomography (pQCT) measurements are frequently obtained to assess cancellous bone density in the appendicular skeleton. Large variations in bone morphology associated with skeletal development may limit the interpretation of pediatric pQCT studies based on a single slice. OBJECTIVE The objective of the study was to characterize the variability in trabec...

Computed tomography and pulmonary measurements.

Computed tomography (CT) was first developed to measure accurately radiographic density, rather than as a method of imaging. Although subsequent development concentrated on the imaging potential of the method, some recent studies have used the ability of the method to quantify radiographic density, to provide precise measurements of lung regions and infer differences in regional properties. CT ...

Quantitative Computed Tomography

Computed Tomography (CT) is a wide-spread medical imaging modality. Traditional CT yields information on a patient’s anatomy in form of slice images or volume data. Hounsfield Units (HU) are used to quantify the imaged tissue properties. Due to the polychromatic nature of X-rays in CT, the HU values for a specific tissue depend on its density and composition but also on CT system parameters and...

Quantitative Determination Of Optimal Fiscal And Monetary Policies: A Stochastic Optimal Control Analysis For Iran