9 research outputs found
Local Support Assembly of the ATLAS Pixel Detector
The barrel part of the ATLAS pixel detector will consist of 112 carbon-carbon
structures called "staves" with 13 hybrid detector modules being glued on each
stave. The demands on the glue joints are high, both in terms of mechanical
precision and thermal contact. To achieve this precision a custom-made
semi-automated mounting machine has been constructed in Wuppertal, which
provides a precision in the order of tens of microns. As this is the last stage
of the detector assembly providing an opportunity for stringent tests, a
detailed procedure has been defined for assessing both mechanical and
electrical properties. This note gives an overview of the procedure for
affixation and tests, and summarizes the first results of the production.Comment: 6 pages, 8 figure
Treatment Effect of CT-Guided Periradicular Injections in Context of Different Contrast Agent Distribution Patterns
Acutely manifesting radicular pain syndromes associated with degenerations of the lower
spine are frequent ailments with a high rate of recurrence. Part of the conservative management are
periradicular infiltrations of analgesics and steroids. The purpose of this study is to evaluate the
dependence of the clinical efficacy of CT-guided periradicular injections on the pattern of contrast
distribution and to identify the best distribution pattern that is associated with the most effective pain
relief. Using a prospective study design, 161 patients were included in this study, ensuring ethical
standards. Statistical analysis was performed, with the level of statistical significance set at p = 0.05.
A total of 37.9% of patients experienced significant but not long-lasting (four weeks on average)
complete pain relief. A total of 44.1% of patients experienced prolonged, subjectively satisfying pain
relief of more than four weeks to three months. A total of 18% of patients had complete and sustained
relief for more than six months. A significant correlation exists between circumferential, large area
contrast distribution including the zone of action between the disc and affected nerve root contrast
distribution pattern with excellent pain relief. Our results support the value of CT-guided contrast
injection for achieving a good efficacy, and, if necessary, indicative repositioning of the needle to
ensure a circumferential distribution pattern of corticosteroids for the sufficient treatment of radicular
pain in degenerative spine disease
Die deutsche Volkskunde im Unterricht an höheren Schulen /
Mode of access: Internet
Treatment Effect of CT-Guided Periradicular Injections in Context of Different Contrast Agent Distribution Patterns
Acutely manifesting radicular pain syndromes associated with degenerations of the lower
spine are frequent ailments with a high rate of recurrence. Part of the conservative management are
periradicular infiltrations of analgesics and steroids. The purpose of this study is to evaluate the
dependence of the clinical efficacy of CT-guided periradicular injections on the pattern of contrast
distribution and to identify the best distribution pattern that is associated with the most effective pain
relief. Using a prospective study design, 161 patients were included in this study, ensuring ethical
standards. Statistical analysis was performed, with the level of statistical significance set at p = 0.05.
A total of 37.9% of patients experienced significant but not long-lasting (four weeks on average)
complete pain relief. A total of 44.1% of patients experienced prolonged, subjectively satisfying pain
relief of more than four weeks to three months. A total of 18% of patients had complete and sustained
relief for more than six months. A significant correlation exists between circumferential, large area
contrast distribution including the zone of action between the disc and affected nerve root contrast
distribution pattern with excellent pain relief. Our results support the value of CT-guided contrast
injection for achieving a good efficacy, and, if necessary, indicative repositioning of the needle to
ensure a circumferential distribution pattern of corticosteroids for the sufficient treatment of radicular
pain in degenerative spine disease
Treatment Effect of CT-Guided Periradicular Injections in Context of Different Contrast Agent Distribution Patterns
Acutely manifesting radicular pain syndromes associated with degenerations of the lower
spine are frequent ailments with a high rate of recurrence. Part of the conservative management are
periradicular infiltrations of analgesics and steroids. The purpose of this study is to evaluate the
dependence of the clinical efficacy of CT-guided periradicular injections on the pattern of contrast
distribution and to identify the best distribution pattern that is associated with the most effective pain
relief. Using a prospective study design, 161 patients were included in this study, ensuring ethical
standards. Statistical analysis was performed, with the level of statistical significance set at p = 0.05.
A total of 37.9% of patients experienced significant but not long-lasting (four weeks on average)
complete pain relief. A total of 44.1% of patients experienced prolonged, subjectively satisfying pain
relief of more than four weeks to three months. A total of 18% of patients had complete and sustained
relief for more than six months. A significant correlation exists between circumferential, large area
contrast distribution including the zone of action between the disc and affected nerve root contrast
distribution pattern with excellent pain relief. Our results support the value of CT-guided contrast
injection for achieving a good efficacy, and, if necessary, indicative repositioning of the needle to
ensure a circumferential distribution pattern of corticosteroids for the sufficient treatment of radicular
pain in degenerative spine disease
Treatment Effect of CT-Guided Periradicular Injections in Context of Different Contrast Agent Distribution Patterns
Acutely manifesting radicular pain syndromes associated with degenerations of the lower spine are frequent ailments with a high rate of recurrence. Part of the conservative management are periradicular infiltrations of analgesics and steroids. The purpose of this study is to evaluate the dependence of the clinical efficacy of CT-guided periradicular injections on the pattern of contrast distribution and to identify the best distribution pattern that is associated with the most effective pain relief. Using a prospective study design, 161 patients were included in this study, ensuring ethical standards. Statistical analysis was performed, with the level of statistical significance set at p = 0.05. A total of 37.9% of patients experienced significant but not long-lasting (four weeks on average) complete pain relief. A total of 44.1% of patients experienced prolonged, subjectively satisfying pain relief of more than four weeks to three months. A total of 18% of patients had complete and sustained relief for more than six months. A significant correlation exists between circumferential, large area contrast distribution including the zone of action between the disc and affected nerve root contrast distribution pattern with excellent pain relief. Our results support the value of CT-guided contrast injection for achieving a good efficacy, and, if necessary, indicative repositioning of the needle to ensure a circumferential distribution pattern of corticosteroids for the sufficient treatment of radicular pain in degenerative spine disease