8 research outputs found

    Π”Π˜Π€Π€Π•Π Π•ΠΠ¦Π˜ΠΠ›Π¬ΠΠΠ― Π”Π˜ΠΠ“ΠΠžΠ‘Π’Π˜ΠšΠ ΠΠ•Π’Π ΠΠ’ΠœΠΠ’Π˜Π§Π•Π‘ΠšΠ˜Π₯ Π’ΠΠ£Π’Π Π˜ΠœΠžΠ—Π“ΠžΠ’Π«Π₯ ΠšΠ ΠžΠ’ΠžΠ˜Π—Π›Π˜Π―ΠΠ˜Π™ ПО Π­Π’Π˜ΠžΠŸΠΠ’ΠžΠ€Π˜Π—Π˜ΠžΠ›ΠžΠ“Π˜Π˜ Π›Π£Π§Π•Π’Π«ΠœΠ˜ ΠœΠ•Π’ΠžΠ”ΠΠœΠ˜

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    Differential diagnostics of non-traumatic intracerebral hemorrhages is a critical area of scientific research and development in neuroradiology. In modern clinical practice, diagnostics are often limited to anatomical description of pathology without taking into account its etiology and pathogenesis. This paper analyzes the ethiopathogenetic factors underlying non-traumatic intracranial hemorrhages, as well as the potential of tomography in differential diagnosis of intracerebral non-traumatic hemorrhages with regard to localization and prevalence. Additionally, the paper analyzes the most common misinterpretations in the diagnostics of non-traumatic intracerebral hemorrhages, providing examples of pathologies with different etiologic but similar hallmarks in magnetic resonance imaging (MRI) and computed tomography (CT).Π”ΠΈΡ„Ρ„Π΅Ρ€Π΅Π½Ρ†ΠΈΠ°Π»ΡŒΠ½Π°Ρ диагностика нСтравматичСских Π²Π½ΡƒΡ‚Ρ€ΠΈΠΌΠΎΠ·Π³ΠΎΠ²Ρ‹Ρ… кровоизлияний являСтся Π°ΠΊΡ‚ΡƒΠ°Π»ΡŒΠ½ΠΎΠΉ ΠΏΡ€ΠΎΠ±Π»Π΅ΠΌΠΎΠΉ Π² Π½Π΅ΠΉΡ€ΠΎΡ€Π°Π΄ΠΈΠΎΠ»ΠΎΠ³ΠΈΠΈ Π½Π° настоящий ΠΌΠΎΠΌΠ΅Π½Ρ‚. Π’ ΠΌΠΈΡ€ΠΎΠ²ΠΎΠΉ соврСмСнной ΠΏΡ€Π°ΠΊΡ‚ΠΈΠΊΠ΅ ΠΌΠ΅Ρ‚ΠΎΠ΄Ρ‹ Π»ΡƒΡ‡Π΅Π²ΠΎΠΉ диагностики часто ΠΎΠ³Ρ€Π°Π½ΠΈΡ‡ΠΈΠ²Π°ΡŽΡ‚ΡΡ анатомичСским описаниСм ΠΏΠ°Ρ‚ΠΎΠ»ΠΎΠ³ΠΈΠΈ, Π±Π΅Π· ΡƒΡ‡Π΅Ρ‚Π° особСнностСй этиологии ΠΈ ΠΏΠ°Ρ‚ΠΎΠ³Π΅Π½Π΅Π·Π° выявлСнных ΠΈΠ·ΠΌΠ΅Π½Π΅Π½ΠΈΠΉ. Π’ Ρ€Π°Π±ΠΎΡ‚Π΅ ΠΏΡ€ΠΎΠ°Π½Π°Π»ΠΈΠ·ΠΈΡ€ΠΎΠ²Π°Π½Ρ‹ этиопатогСнСтичСскиС Ρ„Π°ΠΊΡ‚ΠΎΡ€Ρ‹, Π»Π΅ΠΆΠ°Ρ‰ΠΈΠ΅ Π² основС Π²Π½ΡƒΡ‚Ρ€ΠΈΠΌΠΎΠ·Π³ΠΎΠ²Ρ‹Ρ… нСтравматичСских кровоизлияний, рассмотрСны возмоТности Ρ‚ΠΎΠΌΠΎΠ³Ρ€Π°Ρ„ΠΈΠΈ Π²Β  Π΄ΠΈΡ„Ρ„Π΅Ρ€Π΅Π½Ρ†ΠΈΠ°Π»ΡŒΠ½ΠΎΠΉ диагностикС Π²Π½ΡƒΡ‚Ρ€ΠΈΠΌΠΎΠ·Π³ΠΎΠ²Ρ‹Ρ… нСтравматичСских кровоизлияний с ΡƒΡ‡Π΅Ρ‚ΠΎΠΌ Π»ΠΎΠΊΠ°Π»ΠΈΠ·Π°Ρ†ΠΈΠΈ кровоизлияния ΠΈ частоты выявлСния. Помимо этого, Π² Ρ€Π°Π±ΠΎΡ‚Π΅ проводится Ρ€Π°Π·Π±ΠΎΡ€ Π½Π°ΠΈΠ±ΠΎΠ»Π΅Π΅ часто Π²ΡΡ‚Ρ€Π΅Ρ‡Π°ΡŽΡ‰ΠΈΡ…ΡΡ Π·Π°Π±Π»ΡƒΠΆΠ΄Π΅Π½ΠΈΠΉ с Π°Π½Π°Π»ΠΈΠ·ΠΎΠΌ ΠΏΠ°Ρ‚ΠΎΠ»ΠΎΠ³ΠΈΠΉ, ΠΊΠΎΡ‚ΠΎΡ€Ρ‹Π΅ ΠΊΡ€Π°ΠΉΠ½Π΅ Ρ€Π΅Π΄ΠΊΠΎ ΠΌΠΎΠ³ΡƒΡ‚ ΡΠ²Π»ΡΡ‚ΡŒΡΡ ΠΏΡ€ΠΈΡ‡ΠΈΠ½ΠΎΠΉ Π²Π½ΡƒΡ‚Ρ€ΠΈΠΌΠΎΠ·Π³ΠΎΠ²ΠΎΠ³ΠΎ нСтравматичСского кровоизлияния. Π’ Ρ€Π°Π±ΠΎΡ‚Π΅ ΠΏΡ€ΠΈΠ²Π΅Π΄Π΅Π½Ρ‹ Ρ‚ΠΈΠΏΡ‹ ΠΏΠ°Ρ‚ΠΎΠ»ΠΎΠ³ΠΈΠΉ, ΠΊΠΎΡ‚ΠΎΡ€Ρ‹Π΅ ΠΌΠΎΠ³ΡƒΡ‚ ΠΈΠΌΠ΅Ρ‚ΡŒ сходныС ΡΠΈΠ³Π½Π°Π»ΡŒΠ½Ρ‹Π΅ характСристики с кровоизлияниСм ΠΏΡ€ΠΈ ΠΌΠ°Π³Π½ΠΈΡ‚Π½ΠΎ-рСзонансной Ρ‚ΠΎΠΌΠΎΠ³Ρ€Π°Ρ„ΠΈΠΈ (МРВ) ΠΈ ΠΊΠΎΠΌΠΏΡŒΡŽΡ‚Π΅Ρ€Π½ΠΎΠΉ Ρ‚ΠΎΠΌΠΎΠ³Ρ€Π°Ρ„ΠΈΠΈ (КВ)

    The indicators of optical density of the alveolar bone of patients with chronic generalized parodontitis and bruxism

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    The article is devoted to the study of optical density of patients with paradentium diseases. The aim of the study was the evaluation of indicators of optical density of bone tissue of jaws using dental computerized tomography in patients with chronic generalized parodontitis. Materials and methods: in the research following methods were used: dental computerized tomography, densitometry, index estimation of paradentium tissues. The characteristics of clinical, functional features of patients were given. The method of treatment was developed. The effectiveness of this method was evaluated. The positive dynamics of clinical symptoms is more pronounced in patients that received the offered method of treatment, than in patients that received basic therapy. This revealed in the reduction of time of the treatment on 10 days in average. The disappearance of edema, hyperemia of the gingiva, pain and bleeding during the probing and during eating, the restoration of densely elastic consistency of the gingiva, correct configuration of marginal papillae and full gingival edge are clinically revealed. Complex use of basic therapy, laserphoresis with Kanalgat gel in patients with chronic generalized parodontitis of mild severity caused to significant increase in the clinical effectiveness of treatment.ЦСлью Ρ€Π°Π±ΠΎΡ‚Ρ‹ явилось ΠΎΠΏΡ€Π΅Π΄Π΅Π»Π΅Π½ΠΈΠ΅ ΠΏΠΎΠΊΠ°Π·Π°Ρ‚Π΅Π»Π΅ΠΉ оптичСской плотности костной Ρ‚ΠΊΠ°Π½ΠΈ Ρ‡Π΅Π»ΡŽΡΡ‚Π΅ΠΉ с ΠΏΠΎΠΌΠΎΡ‰ΡŒΡŽ ΠΌΠ΅Ρ‚ΠΎΠ΄Π° Π΄Π΅Π½Ρ‚Π°Π»ΡŒΠ½ΠΎΠΉ ΠΊΠΎΠΌΠΏΡŒΡŽΡ‚Π΅Ρ€Π½ΠΎΠΉ Ρ‚ΠΎΠΌΠΎΠ³Ρ€Π°Ρ„ΠΈΠΈ Ρƒ ΠΏΠ°Ρ†ΠΈΠ΅Π½Ρ‚ΠΎΠ² с хроничСским Π³Π΅Π½Π΅Ρ€Π°Π»ΠΈΠ·ΠΎΠ²Π°Π½Π½Ρ‹ΠΌ ΠΏΠ°Ρ€ΠΎΠ΄ΠΎΠ½Ρ‚ΠΈΡ‚ΠΎΠΌ. ΠœΠ°Ρ‚Π΅Ρ€ΠΈΠ°Π»Ρ‹ ΠΈ ΠΌΠ΅Ρ‚ΠΎΠ΄Ρ‹: Π² исслСдовании использовались ΡΠ»Π΅Π΄ΡƒΡŽΡ‰ΠΈΠ΅ ΠΌΠ΅Ρ‚ΠΎΠ΄Ρ‹ диагностики: Π΄Π΅Π½Ρ‚Π°Π»ΡŒΠ½Π°Ρ ΠΊΠΎΠΌΠΏΡŒΡŽΡ‚Π΅Ρ€Π½Π°Ρ томография, дСнситомСтрия, индСксная ΠΎΡ†Π΅Π½ΠΊΠ° Ρ‚ΠΊΠ°Π½Π΅ΠΉ ΠΏΠ°Ρ€ΠΎΠ΄ΠΎΠ½Ρ‚Π°. ΠŸΡ€ΠΎΠ²ΠΎΠ΄ΠΈΠ»ΠΎΡΡŒ Π»Π΅Ρ‡Π΅Π½ΠΈΠ΅ с использованиСм Π»Π°Π·Π΅Ρ€ΠΎΡ„ΠΎΡ€Π΅Π·Π° с Π³Π΅Π»Π΅ΠΌ ΠΊΠ°Π½Π°Π»ΡŒΠ³Π°Ρ‚. ΠŸΡ€Π΅Π΄ΡΡ‚Π°Π²Π»Π΅Π½Ρ‹ Ρ€Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚Ρ‹ комплСксного обслСдования, диагностики ΠΈ лСчСния 95 ΠΏΠ°Ρ†ΠΈΠ΅Π½Ρ‚ΠΎΠ² с хроничСским Π³Π΅Π½Π΅Ρ€Π°Π»ΠΈΠ·ΠΎΠ²Π°Π½Π½Ρ‹ΠΌ ΠΏΠ°Ρ€ΠΎΠ΄ΠΎΠ½Ρ‚ΠΈΡ‚ΠΎΠΌ Π»Π΅Π³ΠΊΠΎΠΉ стСпСни тяТСсти. Π”Π°Π½Π° характСристика клиничСским, Ρ„ΡƒΠ½ΠΊΡ†ΠΈΠΎΠ½Π°Π»ΡŒΠ½Ρ‹ΠΌ особСнностям этих Π±ΠΎΠ»ΡŒΠ½Ρ‹Ρ…. Π Π°Π·Ρ€Π°Π±ΠΎΡ‚Π°Π½ ΠΌΠ΅Ρ‚ΠΎΠ΄ лСчСния. ΠžΠΏΡ€Π΅Π΄Π΅Π»Π΅Π½Π° Π΅Π³ΠΎ ΡΡ„Ρ„Π΅ΠΊΡ‚ΠΈΠ²Π½ΠΎΡΡ‚ΡŒ. ΠŸΠΎΠ»ΠΎΠΆΠΈΡ‚Π΅Π»ΡŒΠ½Π°Ρ Π΄ΠΈΠ½Π°ΠΌΠΈΠΊΠ° клиничСской симптоматики ΠΈΠΌΠ΅Π»Π° Π±ΠΎΠ»Π΅Π΅ Π²Ρ‹Ρ€Π°ΠΆΠ΅Π½Π½Ρ‹ΠΉ Ρ…Π°Ρ€Π°ΠΊΡ‚Π΅Ρ€ Ρƒ ΠΏΠ°Ρ†ΠΈΠ΅Π½Ρ‚ΠΎΠ², ΠΏΠΎΠ»ΡƒΡ‡Π°Π²ΡˆΠΈΡ… ΠΏΡ€Π΅Π΄Π»ΠΎΠΆΠ΅Π½Π½Ρ‹ΠΉ ΠΌΠ΅Ρ‚ΠΎΠ΄ лСчСния, Ρ‡Π΅ΠΌ Ρƒ ΠΏΠ°Ρ†ΠΈΠ΅Π½Ρ‚ΠΎΠ², ΠΏΠΎΠ»ΡƒΡ‡Π°Π²ΡˆΠΈΡ… Π±Π°Π·ΠΎΠ²ΡƒΡŽ Ρ‚Π΅Ρ€Π°ΠΏΠΈΡŽ. Π­Ρ‚ΠΎ ΠΏΡ€ΠΎΡΠ²Π»ΡΠ»ΠΎΡΡŒ Π² сокращСнии сроков лСчСния Π² срСднСм Π½Π° 10 Π΄Π½Π΅ΠΉ. ΠšΠ»ΠΈΠ½ΠΈΡ‡Π΅ΡΠΊΠΈ ΠΏΡ€ΠΎΡΠ²Π»ΡΠ»ΠΎΡΡŒ исчСзновСниСм ΠΎΡ‚Π΅ΠΊΠ°, Π³ΠΈΠΏΠ΅Ρ€Π΅ΠΌΠΈΠΈ дСсны, Π±ΠΎΠ»ΠΈ ΠΈ кровоточивости ΠΏΡ€ΠΈ Π·ΠΎΠ½Π΄ΠΈΡ€ΠΎΠ²Π°Π½ΠΈΠΈ ΠΈ ΠΏΡ€ΠΈ ΠΏΡ€ΠΈΠ΅ΠΌΠ΅ ΠΏΠΈΡ‰ΠΈ, восстановлСниСм плотноэластичСской консистСнции дСсны, ΠΏΡ€Π°Π²ΠΈΠ»ΡŒΠ½ΠΎΠΉ ΠΊΠΎΠ½Ρ„ΠΈΠ³ΡƒΡ€Π°Ρ†ΠΈΠΈ ΠΌΠ°Ρ€Π³ΠΈΠ½Π°Π»ΡŒΠ½Ρ‹Ρ… сосочков ΠΈ всСго дСснСвого края. КомплСксноС ΠΏΡ€ΠΈΠΌΠ΅Π½Π΅Π½ΠΈΠ΅ Π±Π°Π·ΠΎΠ²ΠΎΠΉ Ρ‚Π΅Ρ€Π°ΠΏΠΈΠΈ, Π»Π°Π·Π΅Ρ€ΠΎΡ„ΠΎΡ€Π΅Π·Π° с Π³Π΅Π»Π΅ΠΌ ΠΊΠ°Π½Π°Π»ΡŒΠ³Π°Ρ‚ Ρƒ ΠΏΠ°Ρ†ΠΈΠ΅Π½Ρ‚ΠΎΠ² с хроничСским Π³Π΅Π½Π΅Ρ€Π°Π»ΠΈΠ·ΠΎΠ²Π°Π½Π½Ρ‹ΠΌ ΠΏΠ°Ρ€ΠΎΠ΄ΠΎΠ½Ρ‚ΠΈΡ‚ΠΎΠΌ Π»Π΅Π³ΠΊΠΎΠΉ стСпСни тяТСсти, Π²Ρ‹Π·Π²Π°Π»ΠΎ достовСрноС ΠΏΠΎΠ²Ρ‹ΡˆΠ΅Π½ΠΈΠ΅ клиничСской эффСктивности лСчСния

    Π”Π˜Π€Π€Π•Π Π•ΠΠ¦Π˜ΠΠ›Π¬ΠΠΠ― Π”Π˜ΠΠ“ΠΠžΠ‘Π’Π˜ΠšΠ ΠΠ•Π’Π ΠΠ’ΠœΠΠ’Π˜Π§Π•Π‘ΠšΠ˜Π₯ Π’ΠΠ£Π’Π Π˜ΠœΠžΠ—Π“ΠžΠ’Π«Π₯ ΠšΠ ΠžΠ’ΠžΠ˜Π—Π›Π˜Π―ΠΠ˜Π™ ПО Π­Π’Π˜ΠžΠŸΠΠ’ΠžΠ€Π˜Π—Π˜ΠžΠ›ΠžΠ“Π˜Π˜ Π›Π£Π§Π•Π’Π«ΠœΠ˜ ΠœΠ•Π’ΠžΠ”ΠΠœΠ˜

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    Differential diagnostics of non-traumatic intracerebral hemorrhages is a critical area of scientific research and development in neuroradiology. In modern clinical practice, diagnostics are often limited to anatomical description of pathology without taking into account its etiology and pathogenesis. This paper analyzes the ethiopathogenetic factors underlying non-traumatic intracranial hemorrhages, as well as the potential of tomography in differential diagnosis of intracerebral non-traumatic hemorrhages with regard to localization and prevalence. Additionally, the paper analyzes the most common misinterpretations in the diagnostics of non-traumatic intracerebral hemorrhages, providing examples of pathologies with different etiologic but similar hallmarks in magnetic resonance imaging (MRI) and computed tomography (CT).Π”ΠΈΡ„Ρ„Π΅Ρ€Π΅Π½Ρ†ΠΈΠ°Π»ΡŒΠ½Π°Ρ диагностика нСтравматичСских Π²Π½ΡƒΡ‚Ρ€ΠΈΠΌΠΎΠ·Π³ΠΎΠ²Ρ‹Ρ… кровоизлияний являСтся Π°ΠΊΡ‚ΡƒΠ°Π»ΡŒΠ½ΠΎΠΉ ΠΏΡ€ΠΎΠ±Π»Π΅ΠΌΠΎΠΉ Π² Π½Π΅ΠΉΡ€ΠΎΡ€Π°Π΄ΠΈΠΎΠ»ΠΎΠ³ΠΈΠΈ Π½Π° настоящий ΠΌΠΎΠΌΠ΅Π½Ρ‚. Π’ ΠΌΠΈΡ€ΠΎΠ²ΠΎΠΉ соврСмСнной ΠΏΡ€Π°ΠΊΡ‚ΠΈΠΊΠ΅ ΠΌΠ΅Ρ‚ΠΎΠ΄Ρ‹ Π»ΡƒΡ‡Π΅Π²ΠΎΠΉ диагностики часто ΠΎΠ³Ρ€Π°Π½ΠΈΡ‡ΠΈΠ²Π°ΡŽΡ‚ΡΡ анатомичСским описаниСм ΠΏΠ°Ρ‚ΠΎΠ»ΠΎΠ³ΠΈΠΈ, Π±Π΅Π· ΡƒΡ‡Π΅Ρ‚Π° особСнностСй этиологии ΠΈ ΠΏΠ°Ρ‚ΠΎΠ³Π΅Π½Π΅Π·Π° выявлСнных ΠΈΠ·ΠΌΠ΅Π½Π΅Π½ΠΈΠΉ. Π’ Ρ€Π°Π±ΠΎΡ‚Π΅ ΠΏΡ€ΠΎΠ°Π½Π°Π»ΠΈΠ·ΠΈΡ€ΠΎΠ²Π°Π½Ρ‹ этиопатогСнСтичСскиС Ρ„Π°ΠΊΡ‚ΠΎΡ€Ρ‹, Π»Π΅ΠΆΠ°Ρ‰ΠΈΠ΅ Π² основС Π²Π½ΡƒΡ‚Ρ€ΠΈΠΌΠΎΠ·Π³ΠΎΠ²Ρ‹Ρ… нСтравматичСских кровоизлияний, рассмотрСны возмоТности Ρ‚ΠΎΠΌΠΎΠ³Ρ€Π°Ρ„ΠΈΠΈ Π²Β  Π΄ΠΈΡ„Ρ„Π΅Ρ€Π΅Π½Ρ†ΠΈΠ°Π»ΡŒΠ½ΠΎΠΉ диагностикС Π²Π½ΡƒΡ‚Ρ€ΠΈΠΌΠΎΠ·Π³ΠΎΠ²Ρ‹Ρ… нСтравматичСских кровоизлияний с ΡƒΡ‡Π΅Ρ‚ΠΎΠΌ Π»ΠΎΠΊΠ°Π»ΠΈΠ·Π°Ρ†ΠΈΠΈ кровоизлияния ΠΈ частоты выявлСния. Помимо этого, Π² Ρ€Π°Π±ΠΎΡ‚Π΅ проводится Ρ€Π°Π·Π±ΠΎΡ€ Π½Π°ΠΈΠ±ΠΎΠ»Π΅Π΅ часто Π²ΡΡ‚Ρ€Π΅Ρ‡Π°ΡŽΡ‰ΠΈΡ…ΡΡ Π·Π°Π±Π»ΡƒΠΆΠ΄Π΅Π½ΠΈΠΉ с Π°Π½Π°Π»ΠΈΠ·ΠΎΠΌ ΠΏΠ°Ρ‚ΠΎΠ»ΠΎΠ³ΠΈΠΉ, ΠΊΠΎΡ‚ΠΎΡ€Ρ‹Π΅ ΠΊΡ€Π°ΠΉΠ½Π΅ Ρ€Π΅Π΄ΠΊΠΎ ΠΌΠΎΠ³ΡƒΡ‚ ΡΠ²Π»ΡΡ‚ΡŒΡΡ ΠΏΡ€ΠΈΡ‡ΠΈΠ½ΠΎΠΉ Π²Π½ΡƒΡ‚Ρ€ΠΈΠΌΠΎΠ·Π³ΠΎΠ²ΠΎΠ³ΠΎ нСтравматичСского кровоизлияния. Π’ Ρ€Π°Π±ΠΎΡ‚Π΅ ΠΏΡ€ΠΈΠ²Π΅Π΄Π΅Π½Ρ‹ Ρ‚ΠΈΠΏΡ‹ ΠΏΠ°Ρ‚ΠΎΠ»ΠΎΠ³ΠΈΠΉ, ΠΊΠΎΡ‚ΠΎΡ€Ρ‹Π΅ ΠΌΠΎΠ³ΡƒΡ‚ ΠΈΠΌΠ΅Ρ‚ΡŒ сходныС ΡΠΈΠ³Π½Π°Π»ΡŒΠ½Ρ‹Π΅ характСристики с кровоизлияниСм ΠΏΡ€ΠΈ ΠΌΠ°Π³Π½ΠΈΡ‚Π½ΠΎ-рСзонансной Ρ‚ΠΎΠΌΠΎΠ³Ρ€Π°Ρ„ΠΈΠΈ (МРВ) ΠΈ ΠΊΠΎΠΌΠΏΡŒΡŽΡ‚Π΅Ρ€Π½ΠΎΠΉ Ρ‚ΠΎΠΌΠΎΠ³Ρ€Π°Ρ„ΠΈΠΈ (КВ).</p

    USE OF PHASE-CONTRAST MAGNETIC RESONANCE IMAGING TO QUANTIFY CEREBROSPINAL FLUID DYNAMICS IN PATIENTS WITH COMMUNICATING HYDROCEPHALUS

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    Objective: to determine differences in cerebrospinal fluid (CSF) flow velocities in patients with varying degrees of communicating hydrocephalus (CH) versus a group of healthy volunteers without hydrodynamic disorders. Material and methods. The investigation enrolled 27 CH patients (17 and 10 patients with an Evans index of 0.31 and 0.46, respectively) and 62 healthy volunteers. Average, volumetric, and peak flow velocities were determined at different intracranial levels. Results. Analysis of differences between the mean values indicated that the patients with CH were observed to have progressive cranial cavity CSF outflow obstruction that depended on the degree of dilation of the ventricular system and, probably, on impaired CSF reabsorption. These changes can provide an explanation for the clinical symptoms present in the patients and also serve as diagnostic criteria. Conclusion. The investigation showed that phase-contrast magnetic resonance imaging might be used to estimate the quantitative indicators of CSF in health and in varying degrees of CH. The velocity characteristics of antegrade and retrograde CSF flows are significantly different in health and in disease, which mayΒ be relevant to neurologists and neurosurgeons when planning therapy and surgery options

    Electron Beam Loss Monitor of Areal Accelerator Based on Pin-Photodiodes

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    A prototype PIN-photodiode-based electron system for flux measurement of the AREAL accelerator electron beam (energy up to 5 MeV) was developed and tested. The system can be eventually used to measure beam losses from the vacuum chamber of the SASE100 undulator, which is intended for the generation of radiation in the terahertz range and will be installed in the AREAL accelerator tract during its modernization. The method of using the PIN-photodiodes as a beam loss monitor is based on the effect of electron-hole pairs formation when ionizing particles pass through the photodiode barrier layer. Calculations of the interaction of electrons with the substance of the barrier layer are performed using the PCLab program. The experiments carried out on the accelerator electron beam showed that the developed system can effectively register the electron fluxes of both the main beam of the AREAL accelerator and its dark current
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