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B Lantz

Publications and source records attributed to B Lantz.

50 records · Page 3Linked to original sources

Relative flow measured by roentgen videodensitometry in hydrodynamic model.

The behaviour of injected iodine contrast medium in a pulsative hydrodynamic model was recorded on videotape in television fluoroscopy and measured by roentgen videodensitometry. By a simple relationship between the integrated densitometric area, the amount of injected contrast medium, and the flow at the site of the injection, it was possible to compare the flow in two different cross-sections of the circulatory system with high accuracy.

Absorptiometry, Photon

Three-dimensional reconstruction of the human heart by video technique.

Three-dimensional reconstruction of different plastic phantoms, organic material and beating human heart was achieved by utilizing a standard roentgen-television system. In continuous stabilized fluoroscopy the television images of the object obtained from different projections were digitized in real time and computerized for reconstruction. Despite a cone beam being used, the spatial resolution seems to be quite adequate for evaluation of gross anatomic structures like the cardiac walls without enhancement by contrast medium.

Absorptiometry, Photon