[Automatic map tracer for study of the origin and diffusion of excitation in cardiac structures in vitro].
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Electrophysiology↗
Biomedical subjects
V Tagliasco
Publications and source records attributed to V Tagliasco.
[Use of pseudo-random visual sequence in the study of evoked cortical potentials].
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Cerebral Cortex↗
[The role of digital storage in radiological studies based on fluoroscopic technics].
In recording radiological images obtained by fluoroscopic techniques on permanent support, digital storage, when compared with other methods, shows several interesting features, especially in order to reduce the X-ray dose and to allow for using economical hard copies. In the paper a system is described, for which it is possible to predict competitive cost in the near future; such system is based on a 512 X 512 X 6 bits digital memory, continuosly refreshed and on a software package oriented to handle radiological images. Examples of images referring to typical body segments (stomach, skull, chest) are reported.
Analog-Digital Conversion↗
[Radiologist-pattern interaction in the processing of fluoroscopic images].
The great complexity of interactions among radiologist, patient and radiological apparatus, when performing radiological tests, is perhaps the main cause of difficulties in the development of automatic systems, both for classification and quantification of radiological images, and for documentation and retrieval of radiological images. The result of such interactions is not a "plate", but a diagnosis, very often the "plate" does not even coincide with the radiological investigation, if this term implies a linkage with the perceptual mechanisms of the radiologist. In other words, the "plate" provides the radiologist with the elements to achieve an interpretation of the image, which will then lead to the diagnosis. In view of a foreseeable spreading of economical medical informatics methodologies, an aim of the present work is stressing the importance of the interactions between medical operators and information processing systems, to select relevant parameters for diagnosis. Sequences of images (originally taken by a movie camera) are presented, which relate to the motor activity of digestive apparatus segments. Processing stresses some of their morpho-dynamic features.
Humans↗