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Biomedical subjects

M Dujovny

Publications and source records attributed to M Dujovny.

258 records · Page 15Linked to original sources
PubMedDate not supplied

Xenon enhanced CT for analysis of cerebral integrity, perfusion, and blood flow.

Enhancement of the brain substance for CT evaluation using inhaled Xenon is confirmed. This technique was applied to the study of the normal and the embolized adolescent baboon. Healthy cerebral tissue enhances symmetrically, while abnormal areas show significantly diminished enhancement. At maximal enhancement, an indication of gross comparative cerebral perfusion to obtained. By obtaining serial CT scans over a 10 minute time interval, the clearance rate of Xenon (cerebral blood flow) may be evaluated. Xenon-enhanced CT enables a visual and numerical analysis of both brain morphology and physiology.

Animals↗
PubMedDate not supplied

Biomechanical properties of calvarium prosthesis.

There are many materials available for the reconstruction of calvarial defects. Even though their biomaterial properties are well known, the biomechanical properties as part of the calvarium have not been investigated. In this article, calvarial implants are reviewed with their historic development into modern cranioplasty. Materials for trephined skulls are classified by their category. Individual parameters to describe their mechanical properties are collected and revealed in detail. The laboratory testing methodology for cranioplasty material is introduced to understand each parameter. At last, we discuss an engineering technique to look into the implant behavior. Since there is no standard goal for the biomechanical and biomaterial point of view for cranioplasty, this article suggests the finite element method for evaluation of the implant behavior and the degree of damage upon the impact injury.

Biomechanical Phenomena↗
PubMedDate not supplied

Scanning electron microscopic anatomy of the supratentorial basal cisterns.

Arachnoid slips from the canine supratentorial basal cisterns were excised and studied by scanning electron microscopy. The inner face of the arachnoid membrane was examined, and two fundamental surface patterns, fenestrated and embossed, were observed. The remaining fibers and microfibers were anchored to these two surface sheets.

Animals↗