Acoustic imaging, achieved by focussing the de-Dopplerized signals from an array of microphones, is also described, and results from a Lockheed TriStar graphically illustrate its capability.
Whereas MRI recently brought new possibilities to show the in vivo architecture of the central nervous system, diffusion tensor imaging achieved tracking of white fiber bundles connecting brain areas or projecting sensorimotor pathways.
Ramakrishnan: What are the levels of accuracy of the medical imaging achieved thus far by GE? Hogan: The terms we use to describe accuracy in imaging are sensitivity and specificity.
The practical depth of imaging achieved with multiphoton imaging depends on the objective used, on the tissue and on the exact wavelength that is used for excitation.
Furthermore, UF-CBCT imaging achieved a reduction of radiation dose due to reduction of total number of acquired frames during imaging.
The recent introduction of MDCT in cardiovascular imaging achieved advantages such as rapid acquisition time, high spatial resolution, and acceptable temporal resolution.
Multi-marker imaging, achieved during the same imaging session, indicated a significant increase of VEGFR-2 and αvβ3 integrin expression during tumor angiogenesis, as well as a considerable decrease in the density of both markers after treatment.
Importantly, region of interest (ROI) analysis of the UC luminescence signal in vivo showed that UC imaging achieved a high signal-to-noise ratio (SNR) of ∼24 between the tumor and the background, which generally cannot be obtained in single-photon or two-photon fluorescence imaging.
Spaepen et al.[ 80 ] evaluated 70 patients with aggressive NHL after 3 4 cycles of therapy and demonstrated that none of 33 patients with abnormal PET imaging achieved a durable complete response whereas 31/37 with a normal PET scan remained in complete response (median follow-up 1107 days).
Spaepen et al. evaluated 70 patients with aggressive NHL after 3 4 cycles of therapy and demonstrated that none of 33 patients with abnormal PET imaging achieved a durable complete response whereas 31/37 with a normal PET scan remained in complete response (median follow-up 1107 days) [ 48].
