We determined tumor volume on T2-weighted images by manually outlining the enhancing portion of the mass, excluding congested CSF signal in ventricles, on each image by using standard "browser" software provided with the Varian Inova imaging system.
Additional preprocessing may allow improved quantitation of the enhancing portion of the tumor.
Histopathologically, the peripheral enhancing portion of the mass corresponds to fibroblastic proliferation, whereas the central poorly enhancing area corresponds to chronic inflammatory infiltrates.
Standard deviations of the voxel-wise Ktrans, ve, and vp measurements were calculated for the enhancing portion of each tumour.
Standard deviations of the voxel-wise K trans, v e, and v p measurements were calculated for the enhancing portion of each tumour.
This was followed by application of the PT algorithm, in which a region of normal parenchyma and the enhancing portion or necrotic nonenhancing portion of the tumor were included in separate regions of interest.
Nonetheless, low-grade gliomas usually show no increase in tumor rCBV while high-grade gliomas may demonstrate high rCBV that in some cases extends outside the contrast-enhancing portion of the tumor.
However, it appears that the current available approaches only enhance a portion of the vast available spectral efficiency rather than potentially being long-term approaches for the next wireless generation systems.
More advanced visualization approaches include dermoscopes; handheld devices that exploit polarization to reject superficially scattered light and specular reflection, enhancing appreciation of deeper portions of the epidermis [ 14].
Enhancing a portion of chemoreception is not the end of the story for losing eyes, however.
In layered material systems, crack growth may be enhanced or delayed over portions of the crack front as the latter approaches a dissimilar layer.
