Electrical
Impedance TomographyElectrical
Impedance TomographyCardiac gated images using TIE1sys at 10 images/s averaging 20
cardiac cicles. The reference used is the average of all frames.
Thorax 1988
Cardiac gated images using TIE1sys at 10 images/s. No average is
used. The reference frame is the average of all images in a cardiac
cicle.
Thorax 1990
These images were obtained using TIE2sys and a resistive phantom with three regions showing relaxations at different frequencies. In the last image, obtained using 16 kHz and 250 kHz signal, all three regions appear. Region 1 had a relaxation frequency of 20 kHz, region 2 of 30 kHz and region 3 of 150 kHz, so they appear as a function of the frequencies used.
This is a sequence of images obtained by measuring in a human abdomen, 5 cm below the end of the sternum with TIE2sys. Frequencies of 8, 16, 64, 125 and 250 kHz were used. The right part of the image corresponds to the right side of body (top view). In the first tree images the high frequency was 125 kHz while the low frequency was changed. Dorsal muscles are clearly appreciated in the two first images, while it disappear in the third one. Bowels, in the front, and backbone, in the center appears as region with no dispersion (red color). The blue area at the righ may correspond to the liver. The last two images were taken using 250 kHz as high frequency. Like in the previous images, muscle appears clearly when 16 kHz is the low frequency. Measurement errors, at 250 kHz, are larger than at 125 kHz.
To get the files that contains raw data of some of this images compressed with PKZIP
