30 Result(s)

Article

A method for noninvasive electrical stimulation of the diaphragm

Stimulated contraction of the diaphragm by non-invasive electrical stimulation of the phrenic nerve is demonstrated. A specialized device including a programmable current source and an electrode system has bee...

A. A. Akhmetova, S. V. Shapovalov, R. V. Li, S. S. Smirnov… in Biomedical Engineering (2024)

Article

A device for non-invasive electrical stimulation of the phrenic nerve

Results obtained from studies of the development of a device for non-invasive electrical stimulation of the phrenic nerve are presented. A block diagram of the device and schematics of key functional blocks ar...

R. V. Li, N. N. Potrakhov, A. A. Ukhov, S. V. Shapovalov… in Biomedical Engineering (2024)

Article

An X-ray emitter for medical diagnostics

Results obtained during the development of the first Russian-made emitter for medical diagnostics, based on a domestic X‑ray tube with a rotating anode, are presented. The main technical characteristics of the...

S. É. Ptitsyn, A. S. Logvinenko, A. S. Baklin, V. V. Pavlov… in Biomedical Engineering (2023)

Article

A Method for Evaluating the Signal-to-Noise Ratio in Magnetic Resonance Images

Assessment of the signal-to-noise ratio as a control parameter for magnetic resonance imaging (MRI) systems is addressed. Experimental data were used to run a statistical analysis of noise components. Use of a...

K. A. Sergunova, E. S. Akhmad, N. N. Potrakhov in Biomedical Engineering (2019)

Article

Surgical Stereo X-Ray Navigation

Hardware and software for surgical instrument navigation using stereo X-ray imaging were developed. The developed surgical stereo X-ray navigation system provides 3D imaging in the process of surgery or during...

V. P. Nazaruk, A. I. Nechaev, N. N. Potrakhov, S. E. Chernakova in Biomedical Engineering (2019)

Article

Current X-Ray Diagnosis Technology in Neonatology

The design of current X-ray diagnostic equipment used in neonatology and pediatrics is discussed. The parameters and functional capacities of these devices are analyzed. The technical requirements on the desig...

A. I. Mazurov, N. N. Potrakhov, Yu. N. Potrakhov in Biomedical Engineering (2019)

Article

New Methods for Digital Processing of Microfocus X-Ray Images

Three algorithms for digital processing of X-ray images were considered: correction of X-ray background based on subtraction of the distortion function, locally-adaptive equalization of histogram, and image de...

N. E. Staroverov, A. Yu. Gryaznov, N. N. Potrakhov… in Biomedical Engineering (2019)

Article

Formation of Biomedical Coatings with Complex Compositions Using Vacuum Arc Plasma

One of the most promising methods for biomedical coating formation is based on the use of vacuum arc plasma sources that allow pure metals to be obtained and plasma-chemical synthesis of complex compounds to b...

D. K. Kostrin, A. A. Lisenkov, N. N. Potrakhov in Biomedical Engineering (2017)

Article

Portable X-Ray Diagnostic Devices for Dentistry

Features of the design and main properties of Russian and some non-Russian portable dental devices are described. Results from dosimetric studies of the first Russian portable dental apparatus of the Pardus fa...

N. N. Potrakhov, Yu. N. Potrakhov in Biomedical Engineering (2017)

Article

Diagnostic Capabilities of Microfocus Roentgenography

Physical and technical fundamentals of microfocus roentgenography in medical diagnosis and results of experimental comparison of penetrating abilities of standard and microfocus roentgenography are reviewed.

N. N. Potrakhov in Biomedical Engineering (2015)

Article

Effect of Scattered X-Ray Radiation on Imaging Quality and Techniques for Its Suppression*

Methods for suppression of scattered X-ray radiation and related methods for improvement of X-ray image are discussed. The concept of method selectivity is suggested by analogy with the concept of X-ray raster...

A. I. Mazurov, N. N. Potrakhov in Biomedical Engineering (2015)

Article

Effect of X-Ray Tube Focal Spot Size on Radiovisiograph Resolution

The effect of the X-ray tube focal spot size on radiovisiograph resolution was tested experimentally.

N. N. Blinov, A. Yu. Vasilyev, V. B. Bessonov, A. Yu. Gryaznov… in Biomedical Engineering (2014)

Article

A Microfocus X-Ray Tube with Rotating Anode

The design of the first domestic microfocal X-ray tube with rotating anode is described. The results of tests of a prototype of the tube are given.

A. A. Podymsky, N. N. Potrakhov in Biomedical Engineering (2014)

Article

Three-dimensional Scanning Systems Based on Binocular Stereovision for Medical Diagnosis

The disadvantages of monocular vision scanning systems as tools for constructing object models are discussed. A mathematical model for a laser scanning system based on binocular stereovision is presented. The ...

M. V. Lavreev, A. A. Ukhov, N. N. Potrakhov, V. B. Bessonov… in Biomedical Engineering (2014)

Article

Portable X-Ray Apparatuses for Dentistry and Maxillofacial Surgery

Portable X-ray apparatuses for dentistry and maxillofacial surgery have entered the list of medical X-ray equipment in recent years. The construction of a portable X-ray diagnostic apparatus allows the use of ...

N. N. Potrakhov, E. N. Potrakhov, A. Yu. Gryaznov… in Biomedical Engineering (2013)

Article

A Microfocal Method for Phase-Contrast X-Ray Imaging

A method for detection of phase contrast X-ray images is described. The mechanism of detection of phase-contrast X-ray images is suggested and optimum conditions for detection of the described effect are consi...

N. N. Blinov, A. Yu. Vasil’ev, N. S. Serova, A. Yu. Gryaznov… in Biomedical Engineering (2009)

Article

Specific Features and Physicotechnical Conditions of X-Ray Imaging Using the PARDUS-Stoma Apparatus

The PARDUS-Stoma X-ray system is described. It is intended for diagnosis of various diseases of teeth and para- and periodontium in dentistry and maxillofacial surgery. The device design allows its use under c...

N. N. Potrakhov, E. N. Potrakhov, A. Yu. Gryaznov in Biomedical Engineering (2009)

Article

Method for Assessment of Information Value of Dental X-Ray Images

N. N. Potrakhov, A. Yu. Gryaznov in Biomedical Engineering (2009)

Article

Radiation Load Associated with Target-Oriented and Panoramic X-Ray Examination Using Portable X-Ray Apparatuses

N. N. Potrakhov, E. N. Potrakhov, A. Yu. Gryaznov, B. F. Vorob’ev in Biomedical Engineering (2008)