7 research outputs found
Chitosan-based biomaterials for closure of dural defects
ΠΠ°ΠΊΡΠΈΡΡΡ Π΄Π΅ΡΠ΅ΠΊΡΡΠ² ΡΠ²Π΅ΡΠ΄ΠΎΡ ΠΌΠΎΠ·ΠΊΠΎΠ²ΠΎΡ ΠΎΠ±ΠΎΠ»ΠΎΠ½ΠΊΠΈ Ρ Π½Π΅ΠΎΠ±Ρ
ΡΠ΄Π½ΡΡΡΡ ΠΏΡΡΠ»Ρ Π½Π΅ΠΉΡΠΎΡ
ΡΡΡΡΠ³ΡΡΠ½ΠΈΡ
ΠΎΠΏΠ΅ΡΠ°ΡΡΠΉ, ΡΠΎΠ± Π·Π°ΠΏΠΎΠ±ΡΠ³ΡΠΈ Π²ΠΈΡΠΎΠΊΡ ΡΠ΅ΡΠ΅Π±ΡΠΎΡΠΏΡΠ½Π°Π»ΡΠ½ΠΎΡ ΡΡΠ΄ΠΈΠ½ΠΈ Ρ Π·ΠΌΠ΅Π½ΡΠΈΡΠΈ ΡΠΈΠ·ΠΈΠΊ ΠΏΡΡΠ»ΡΠΎΠΏΠ΅ΡΠ°ΡΡΠΉΠ½ΠΈΡ
ΡΠ½ΡΠ΅ΠΊΡΡΠΉ. Π Π΅ΠΊΠΎΠ½ΡΡΡΡΠΊΡΡΡ ΡΠ²Π΅ΡΠ΄ΠΎΡ ΠΌΠ°ΡΠ΅ΡΡΡ Π· Π΅Π½Π΄ΠΎΠ³Π΅Π½Π½ΠΎΠ³ΠΎ ΠΌΠ°ΡΠ΅ΡΡΠ°Π»Ρ ΡΡΠ°Ρ Π΄ΡΠΆΠ΅ ΠΏΠΎΡΠΈΡΠ΅Π½ΠΈΠΌ ΡΠ²ΠΈΡΠ΅ΠΌ. Π’ΠΈΠΌ Π½Π΅ ΠΌΠ΅Π½Ρ, ΠΎΠΊΡΡΡΡ Π°Π±ΠΎ ΡΠΈΡΠΎΠΊΠ° ΡΠ°ΡΡΡΡ ΠΌΠΎΠΆΠ΅ ΠΏΡΠΈΠ·Π²Π΅Π·ΡΠΈ Π΄ΠΎ Π΄ΠΎΠ΄Π°ΡΠΊΠΎΠ²ΠΎΡ ΠΎΠΏΠ΅ΡΠ°ΡΡΡ, Π΄ΠΎΠ΄Π°ΡΠΊΠΎΠ²Ρ ΡΠΎΠ·ΡΡΠ·ΠΈ Ρ ΡΠ°Ρ ΡΠ½ΡΠ΅Π½ΡΠΈΠ²Π½ΠΎΠ³ΠΎ Π½Π°ΠΊΠ»Π°Π΄Π΅Π½Π½Ρ ΡΠ²ΡΠ². Π’Π°ΠΊΠΈΠΌ ΡΠΈΠ½ΠΎΠΌ, ΠΌΠ΅ΡΠ° Π½Π°ΡΠΎΠ³ΠΎ Π΄ΠΎΡΠ»ΡΠ΄ΠΆΠ΅Π½Π½Ρ Ρ ΡΡΠ²ΠΎΡΠ΅Π½Π½Ρ Π±ΡΠΎΡΡΠΌΡΡΠ½ΠΎΠ³ΠΎ Ρ Π½Π΅ΡΠΎΠΊΡΠΈΡΠ½ΠΎΠ³ΠΎ ΠΌΠ°ΡΠ΅ΡΡΠ°Π»Ρ Π½Π° ΠΎΡΠ½ΠΎΠ²Ρ Ρ
ΡΡΠΎΠ·Π°Π½Ρ Π΄Π»Ρ Π·Π°ΠΌΡΡΠ΅Π½Π½Ρ Π΄Π΅ΡΠ΅ΠΊΡΡ ΡΠ²Π΅ΡΠ΄ΠΎΡ ΠΌΠΎΠ·ΠΊΠΎΠ²ΠΎΡ ΠΎΠ±ΠΎΠ»ΠΎΠ½ΠΈ. ΠΡΡΠΌ ΡΠΎΠ³ΠΎ, ΠΌΠΈ ΠΎΡΡΠ½ΡΡΠΌΠΎ ΠΉΠΎΠ³ΠΎ Π±ΡΠΎΠ»ΠΎΠ³ΡΡΠ½Ρ Π²Π»Π°ΡΡΠΈΠ²ΠΎΡΡΡ. ΠΠ°ΡΡ ΡΠ΅Π·ΡΠ»ΡΡΠ°ΡΠΈ ΠΏΡΠ΄ΡΠ²Π΅ΡΠ΄ΠΆΡΡΡΡ Π²ΠΈΡΠΎΠΊΡ ΠΌΡΡΠ½ΠΎΡΡΠ½Ρ Π²Π»Π°ΡΡΠΈΠ²ΠΎΡΡΡ, ΡΠΊΡ ΡΡΠΎΡ
ΠΈ Π²ΡΠ΄ΡΡΠ·Π½ΡΡΡΡΡΡ Π²ΡΠ΄ Π½Π°ΡΠΈΠ²Π½ΠΎΡ ΠΎΠ±ΠΎΠ»ΠΎΠ½ΠΈ. Π©ΠΎ ΡΡΠΎΡΡΡΡΡΡΡ ΡΠ²ΠΈΠ΄ΠΊΠΎΡΡΡ Π±ΡΠΎΠ΄Π΅Π³ΡΠ°Π΄Π°ΡΡΡ ΡΠ΅ΠΉ ΠΌΠ°ΡΠ΅ΡΡΠ°Π» ΠΌΠΎΠΆΠ΅ Π±ΡΡΠΈ Π·Π°ΡΡΠΎΡΠΎΠ²Π°Π½ΠΈΠΉ Π² ΡΠΊΠΎΡΡΡ ΠΏΠΎΡΡΡΠΉΠ½ΠΎΠ³ΠΎ ΠΌΠ°ΡΠ΅ΡΡΠ°Π»Ρ Π΄Π»Ρ Π·Π°ΠΌΡΡΠ΅Π½Π½Ρ Π΄Π΅ΡΠ΅ΠΊΡΡ ΡΠ²Π΅ΡΠ΄ΠΎΡ ΠΌΠΎΠ·ΠΊΠΎΠ²ΠΎΡ ΠΎΠ±ΠΎΠ»ΠΎΠ½ΠΈ.ΠΠ°ΠΊΡΡΡΠΈΠ΅ Π΄Π΅ΡΠ΅ΠΊΡΠΎΠ² ΡΠ²Π΅ΡΠ΄ΠΎΠΉ ΠΌΠΎΠ·Π³ΠΎΠ²ΠΎΠΉ ΠΎΠ±ΠΎΠ»ΠΎΡΠΊΠΈ ΡΠ²Π»ΡΠ΅ΡΡΡ Π½Π΅ΠΎΠ±Ρ
ΠΎΠ΄ΠΈΠΌΠΎΡΡΡΡ ΠΏΠΎΡΠ»Π΅ Π½Π΅ΠΉΡΠΎΡ
ΠΈΡΡΡΠ³ΠΈΡΠ΅ΡΠΊΠΈΡ
ΠΎΠΏΠ΅ΡΠ°ΡΠΈΠΉ, ΡΡΠΎΠ±Ρ ΠΏΡΠ΅Π΄ΠΎΡΠ²ΡΠ°ΡΠΈΡΡ ΡΡΠ΅ΡΠΊΡ ΡΠ΅ΡΠ΅Π±ΡΠΎΡΠΏΠΈΠ½Π°Π»ΡΠ½ΠΎΠΉ ΠΆΠΈΠ΄ΠΊΠΎΡΡΠΈ ΠΈ ΡΠΌΠ΅Π½ΡΡΠΈΡΡ ΡΠΈΡΠΊ ΠΏΠΎΡΠ»Π΅ΠΎΠΏΠ΅ΡΠ°ΡΠΈΠΎΠ½Π½ΡΡ
ΠΈΠ½ΡΠ΅ΠΊΡΠΈΠΉ. Π Π΅ΠΊΠΎΠ½ΡΡΡΡΠΊΡΠΈΡ ΡΠ²Π΅ΡΠ΄ΠΎΠΉ ΠΌΠ°ΡΠ΅ΡΠΈΠΈ Ρ ΡΠ½Π΄ΠΎΠ³Π΅Π½Π½ΠΎΠ³ΠΎ ΠΌΠ°ΡΠ΅ΡΠΈΠ°Π»Π° ΡΡΠ°Π½ΠΎΠ²ΠΈΡΡΡ ΠΎΡΠ΅Π½Ρ ΡΠ°ΡΠΏΡΠΎΡΡΡΠ°Π½Π΅Π½Π½ΡΠΌ ΡΠ²Π»Π΅Π½ΠΈΠ΅ΠΌ. Π’Π΅ΠΌ Π½Π΅ ΠΌΠ΅Π½Π΅Π΅, Π½Π°Π΄ΠΊΠΎΡΡΠ½ΠΈΡΡ ΠΈΠ»ΠΈ ΡΠΈΡΠΎΠΊΠ°Ρ ΡΠ°ΡΡΠΈΡ ΠΌΠΎΠΆΠ΅Ρ ΠΏΡΠΈΠ²Π΅Π·ΡΠΈ ΠΊ Π΄ΠΎΠΏΠΎΠ»Π½ΠΈΡΠ΅Π»ΡΠ½ΠΎΠΉ ΠΎΠΏΠ΅ΡΠ°ΡΠΈΠΈ, Π΄ΠΎΠΏΠΎΠ»Π½ΠΈΡΠ΅Π»ΡΠ½ΡΠ΅ ΡΠ°Π·ΡΠ΅Π·Ρ ΠΈ Π²ΡΠ΅ΠΌΡ ΠΈΠ½ΡΠ΅Π½ΡΠΈΠ²Π½ΠΎΠ³ΠΎ Π½Π°Π»ΠΎΠΆΠ΅Π½ΠΈΡ ΡΠ²ΠΎΠ². Π’Π°ΠΊΠΈΠΌ ΠΎΠ±ΡΠ°Π·ΠΎΠΌ, ΡΠ΅Π»Ρ Π½Π°ΡΠ΅Π³ΠΎ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΡ ΡΠ²Π»ΡΠ΅ΡΡΡ ΡΠΎΠ·Π΄Π°Π½ΠΈΠ΅ Π±ΠΈΠΎΡΠΎΠ²ΠΌΠ΅ΡΡΠΈΠΌΠΎΠ³ΠΎ ΠΈ Π½Π΅ΡΠΎΠΊΡΠΈΡΠ½ΠΎΠ³ΠΎ ΠΌΠ°ΡΠ΅ΡΠΈΠ°Π»Π° Π½Π° ΠΎΡΠ½ΠΎΠ²Π΅ Ρ
ΠΈΡΠΎΠ·Π°Π½Π° Π΄Π»Ρ Π·Π°ΠΌΠ΅ΡΠ΅Π½ΠΈΡ Π΄Π΅ΡΠ΅ΠΊΡΠ° ΡΠ²Π΅ΡΠ΄ΠΎΠΉ ΠΌΠΎΠ·Π³ΠΎΠ²ΠΎΠΉ ΠΎΠ±ΠΎΠ»ΠΎΡΠΊΠΈ. ΠΡΠΎΠΌΠ΅ ΡΠΎΠ³ΠΎ, ΠΌΡ ΠΎΡΠ΅Π½ΠΈΠ²Π°Π΅ΠΌ Π΅Π³ΠΎ Π±ΠΈΠΎΠ»ΠΎΠ³ΠΈΡΠ΅ΡΠΊΠΈΠ΅ ΡΠ²ΠΎΠΉΡΡΠ²Π°. ΠΠ°ΡΠΈ ΡΠ΅Π·ΡΠ»ΡΡΠ°ΡΡ ΠΏΠΎΠ΄ΡΠ²Π΅ΡΠΆΠ΄Π°ΡΡ Π²ΡΡΠΎΠΊΠΈΠ΅ ΠΏΡΠΎΡΠ½ΠΎΡΡΠ½ΡΠ΅ ΡΠ²ΠΎΠΉΡΡΠ²Π°, ΠΊΠΎΡΠΎΡΡΠ΅ Π½Π΅ΠΌΠ½ΠΎΠ³ΠΎ ΠΎΡΠ»ΠΈΡΠ°Π΅ΡΡΡ ΠΎΡ Π½Π°ΡΠΈΠ²Π½ΠΎΠΉ ΠΎΠ±ΠΎΠ»ΠΎΡΠΊΠΈ. Π§ΡΠΎ ΠΊΠ°ΡΠ°Π΅ΡΡΡ ΡΠΊΠΎΡΠΎΡΡΠΈ Π±ΠΈΠΎΠ΄Π΅Π³ΡΠ°Π΄Π°ΡΠΈΠΈ ΡΡΠΎΡ ΠΌΠ°ΡΠ΅ΡΠΈΠ°Π» ΠΌΠΎΠΆΠ΅Ρ Π±ΡΡΡ ΠΏΡΠΈΠΌΠ΅Π½Π΅Π½ Π² ΠΊΠ°ΡΠ΅ΡΡΠ²Π΅ ΠΏΠΎΡΡΠΎΡΠ½Π½ΠΎΠ³ΠΎ ΠΌΠ°ΡΠ΅ΡΠΈΠ°Π»Π° Π΄Π»Ρ Π·Π°ΠΌΠ΅ΡΠ΅Π½ΠΈΡ Π΄Π΅ΡΠ΅ΠΊΡΠ° ΡΠ²Π΅ΡΠ΄ΠΎΠΉ ΠΌΠΎΠ·Π³ΠΎΠ²ΠΎΠΉ ΠΎΠ±ΠΎΠ»ΠΎΡΠΊΠΈ.Closure of dural defects is a necessity after neurosurgical procedures to prevent cerebrospinal fluid leakage and to reduce the risk of perioperative infections. Reconstruction of the dura matter with endogenous material becomes very common. However, harvesting of periosteum or fascia lata may require extended surgical approach, additional incisions and time intensive suturing. A wide range of biomaterials, both of natural and synthetic origin, are being investigated for potential applications in dural defect repair. Thus, the aim of our research is to create a biocompatible and nontoxic chitosan-based material to repair dural defects. Besides, we evaluate its biological properties. Our results appeared to confirm high strength properties that were slightly different from those of the native dura. Regarding to the rate of biodegradation this material can be applied as a permanent material to repair dural defects
EAS array of the NEVOD Experimental Complex
A new setup for registration of the electromagnetic component of the EAS at the βkneeβ region of the energy spectrum of primary cosmic rays (PCR) is now under construction on the basis of the experimental complex NEVOD-DECOR (Moscow, Russia). The EAS array detecting system has a cluster organization. Clusters are located in the MEPhI campus. The specific features of the array registering system that provides particle detection, data acquisition, cluster synchronization and events selection are discussed. The results of counter characteristics study are also presented
ΠΠΎΡΠ²ΡΠ΄ ΠΏΡΠΎΠ²Π΅Π΄Π΅Π½Π½Ρ ΡΡΠ΅ΡΠ΅ΠΎΡΠ°ΠΊΡΠΈΡΠ½ΠΈΡ ΠΎΠ±ΡΠΈΡΠ»Π΅Π½Ρ Π· Π²ΠΈΠΊΠΎΡΠΈΡΡΠ°Π½Π½ΡΠΌ ΡΠ½ΡΡΠ°ΠΎΠΏΠ΅ΡΠ°ΡΡΠΉΠ½ΠΎΡ ΠΊΠΎΠΌΠΏβΡΡΠ΅ΡΠ½ΠΎΡ ΡΠΎΠΌΠΎΠ³ΡΠ°ΡΡΡ
Stereotaxical computation method with intraoperative CT is described. Capabilities of recent stereotaxical guide with intraoperative CT and digital image segmentation are adduced and analysed.Π Π°ΡΡΠΌΠΎΡΡΠ΅Π½Π° ΠΌΠ΅ΡΠΎΠ΄ΠΈΠΊΠ° ΠΏΡΠΎΠ²Π΅Π΄Π΅Π½ΠΈΡ ΡΡΠ΅ΡΠ΅ΠΎΡΠ°ΠΊΡΠΈΡΠ΅ΡΠΊΠΈΡ
ΡΠ°ΡΡΠ΅ΡΠΎΠ² ΠΏΡΠΈ ΠΈΠ½ΡΡΠ°ΠΎΠΏΠ΅ΡΠ°ΡΠΈΠΎΠ½Π½ΠΎΠΌ ΠΏΡΠΈΠΌΠ΅Π½Π΅Π½ΠΈΠΈ ΡΠ΅Π½ΡΠ³Π΅Π½ΠΎΠ²ΡΠΊΠΎΠ³ΠΎ ΠΊΠΎΠΌΠΏΡΡΡΠ΅ΡΠ½ΠΎΠ³ΠΎ ΡΠΎΠΌΠΎΠ³ΡΠ°ΡΠ°. ΠΡΠΈΠ²Π΅Π΄Π΅Π½Π° ΠΌΠ΅ΡΠΎΠ΄ΠΈΠΊΠ° ΠΈΡΠΏΠΎΠ»ΡΠ·ΠΎΠ²Π°Π½ΠΈΡ ΡΡΠ°Π½Π΄Π°ΡΡΠ½ΡΡ
ΡΡΠ΅ΡΠ΅ΠΎΡΠ°ΠΊΡΠΈΡΠ΅ΡΠΊΠΈΡ
ΠΎΡΠΈΠ΅Π½ΡΠΈΡΠΎΠ² ΠΏΡΠΈ ΠΏΡΠΎΠ²Π΅Π΄Π΅Π½ΠΈΠΈ ΠΈΠ½ΡΡΠ°ΠΎΠΏΠ΅ΡΠ°ΡΠΈΠΎΠ½Π½ΠΎΠΉ ΠΊΠΎΠΌΠΏΡΡΡΠ΅ΡΠ½ΠΎΠΉ ΡΠΎΠΌΠΎΠ³ΡΠ°ΡΠΈΠΈ.Π ΠΎΠ·Π³Π»ΡΠ½ΡΡΠΎ ΠΌΠ΅ΡΠΎΠ΄ΠΈΠΊΡ ΠΏΡΠΎΠ²Π΅Π΄Π΅Π½Π½Ρ ΡΡΠ΅ΡΠ΅ΠΎΡΠ°ΠΊΡΠΈΡΠ½ΠΈΡ
ΡΠΎΠ·ΡΠ°Ρ
ΡΠ½ΠΊΡΠ² ΠΏΡΠΈ ΡΠ½ΡΡΠ°ΠΎΠΏΠ΅ΡΠ°ΡΡΠΉΠ½ΠΎΠΌΡ Π²ΠΈΠΊΠΎΡΠΈΡΡΠ°Π½Π½Ρ ΡΠ΅Π½ΡΠ³Π΅Π½ΡΠ²ΡΡΠΊΠΎΠ³ΠΎ ΠΊΠΎΠΌΠΏβΡΡΠ΅ΡΠ½ΠΎΠ³ΠΎ ΡΠΎΠΌΠΎΠ³ΡΠ°ΡΠ°. ΠΠ°Π²Π΅Π΄Π΅Π½ΠΎ ΠΌΠ΅ΡΠΎΠ΄ΠΈΠΊΡ Π²ΠΈΠΊΠΎΡΠΈΡΡΠ°Π½Π½Ρ ΡΡΠ°Π½Π΄Π°ΡΡΠ½ΠΈΡ
ΡΡΠ΅ΡΠ΅ΠΎΡΠ°ΠΊΡΠΈΡΠ½ΠΈΡ
ΠΎΡΡΡΠ½ΡΠΈΡΡΠ² ΠΏΡΠΈ ΠΏΡΠΎΠ²Π΅Π΄Π΅Π½Π½Ρ ΡΠ½ΡΡΠ°ΠΎΠΏΠ΅ΡΠ°ΡΡΠΉΠ½ΠΎΡ ΠΊΠΎΠΌΠΏβΡΡΠ΅ΡΠ½ΠΎΡ ΡΠΎΠΌΠΎΠ³ΡΠ°ΡΡΡ.
An experience of applying stereotaxical computations with an intra-operative computer tomography
Stereotaxical computation method with intraoperative CT is described. Capabilities of recent stereotaxical guide with intraoperative CT and digital image segmentation are adduced and analysed
CT-stereotactic hyperkinetic disorders treatment
This work is dedicated to the diagnostics and surgical treatment of different kinds of extrapyramidal discinesions. Nearest and further of 38 patients treatment results, using different methods of stereotactic operations were learned and analyzed. The findings indicated high effectiveness of CT-stereotactical embryonic tissue neurotransplantation in combination with palydostimulation. It was defined, that the evidence for combined treatment of patients with extrapyramidal dysfunctions depends on discinesions form. This method is characterized by high accuracy of stereotactical calculations, non-invasive surgical operation, and negative consequences for patients absence. The proposed method needs future studding and improvement