Comparison Of Radial Research Articles

Investigation of The Effectiveness of Extracorporeal Shock Wave Therapy in Patients Diagnosed with Plantar Fasciitis: Comparison of Radial and Focus Applications

The aim of the study was to investigate the effectiveness of radial and focus (extracorporeal shock wave therapy) ESWT treatment on pain, function and size of the calcaneal spur in patients with clinical and radiological diagnosis of plantar fasciitis. A total of 112 patients aged between 18 and 95 years, were divided into 2 groups; group 1, rESWT (2.4 bar 12 hz 2000 beats), group 2 received fESWT (0.14 bar 14 hz 1000 beats) 3 times a week for 3 weeks. All patients were evaluated using the Visual Analog Scale (VAS)-pain and Foot Function Index before and after the treatment, at 4 week and 12 weeks. Calcaneal spur size was measured radiographically in the patients before and after the treatment at the 12th week follow-up. According to our records, VAS scores were found to be similar between the groups before treatment and at follow-ups (all p > .05). In both groups, a significant decrease in VAS scores was found in the follow-ups compared to before treatment (p < .001). FFI total, pain, activity and disability scores were found to be similar between the groups before treatment and at follow-up (all p > .05). In both groups, a significant decrease in Foot Function Index scores was found in the follow-ups compared to before treatment (p < .001). Both of rESWT and fESWT were effective in plantar fasciitis treatment there were no significant difference between 2 modalities in long term.

Radiation Dose in Coronary Angiogram: A Comparison of Radial and Femoral Approach

Background: Many clinical trials have demonstrated the benefit of trans-radial access (TRA) over trans-femoral access (TFA) in reducing mortality and bleeding events, but there is some concern about radiation exposure with radial access. Objective: To assess the difference in radiation exposure between radial and femoral approach as measured by dose-area product (DAP) and fluoroscopy time. Methods: This cross-sectional study was performed in patients aged 15 years and above who underwent invasive percutaneous coronary angiography at Ramathibodi Hospital between December 2019 and December 2020. Exclusion criteria included previous coronary artery bypass graft, unstable hemodynamic status during procedure, and changing the access site or using access sites other than femoral or radial arteries. Demographic data of patients was collected through medical records. DAP and fluoroscopy time of patients with radial and femoral approach were evaluated. Results: Of 427 patients (49.4% male wtih mean age of 65.7 years), 245 (57.4%) patients underwent TFA. There was no significant difference in the median DAP between the radial and femoral approach (radial 1838 mGy.cm2 vs femoral 1690.7 mGy.cm2, P = .31). However, the fluoroscopy time was significantly higher in radial approach group (radial 4.6 min vs femoral 3.3 min, P &lt; .001). Conclusions: The radiation exposure was not significantly different between trans-radial and trans-femoral coronary angiography.

Comparison of radial, dorsalis pedis, and posterior tibial arteries for ultrasound-guided arterial catheterisation with dynamic needle tip positioning in paediatric patients: a randomised controlled trial

BackgroundArterial catheterisation in children can be challenging and time-consuming. We aimed to compare the success rates of ultrasound-guided arterial catheterisation utilising the short-axis out-of-plane approach with dynamic needle tip positioning in the radial, dorsalis pedis, and posterior tibial arteries in paediatric patients. We also examined the factors influencing the catheterisation success using dynamic needle tip positioning. MethodsPaediatric patients (aged <3 yr) undergoing cardiac surgery were randomly assigned to three groups based on puncture sites: radial artery (Group R), dorsalis pedis artery (Group D), and posterior tibial artery (Group P). The first-attempt and overall success rates of arterial catheterisation were compared, followed by multiple logistic regression analysis (dependent variable: first-attempt success; independent variables: body weight, diameter and depth of the artery, targeted artery, and trisomy 21). ResultsThe study included 270 subjects (n=90 per group). There was no significant difference in the first-attempt (Group R: 82%, Group D: 76%, and Group P: 81%) and overall success rates (Group R: 94%, Group D: 93%, and Group P: 91%) among the three groups. The diameter of the artery (per 0.1 mm) (odds ratio: 1.32, 95% confidence interval: 1.09–1.60) and trisomy 21 (odds ratio: 0.43, 95% confidence interval: 0.20–0.92) were independent predictors of first-attempt success or failure. ConclusionThe first-attempt and overall success rates of arterial catheterisation of the dorsalis pedis and posterior tibial arteries were not inferior to those in the radial artery when using dynamic needle tip positioning. These two lower extremity peripheral arteries present viable alternative catheterisation sites in paediatric patients. Clinical trial registrationUMIN000042847.

Comparison of Radial and Zonal DC Distribution System for Hybrid-Powered Trimaran Vessels Power Flow Analysis

Two types of power grid structures have been applied to the shipboard, namely the radial and the zonal networks. These two distribution systems have different power characteristics transmitted to the bus panel. The power characteristics affect the power density of each bus at each level. This paper explores the power characteristics of the radial type and the zonal type power grid structures in a DC distribution system. The power flow of both distribution system types has been determined by the Adaptive Newton-Raphson method and simulated based on ship operation conditions using Electrical Power System Analysis Software (ETAP). In determining the power flow for the DC distribution system, one-line diagram modelling is developed in radial type and zonal type. The simulation parameters are adjusted to the operating conditions of the ship, namely sailing, manoeuvring, loading-unloading, and at the port. After that, a power flow simulation has been carried out using ETAP and has showed what had successfully implemented the power flow in the DC distribution system for radial and zonal types. The capacity of Power generation is adequate all through a ship operation. The characteristics of the transmitted power show that the zonal type has a higher efficiency rate than the radial type. The zonal type has a backup bus so that the electrical system's reliability is higher than the radial type. However, the power distributed to the equipment bus from the load bus, both the radial type and the zone type, has the exact power requirements.

Quantitative software project management with mixed data: A comparison of radial, nonradial, and ensemble data envelopment analysis models

AbstractData envelopment analysis (DEA) models are often used for benchmarking software projects, and traditional DEA models only allow for the use of continuous variables. This study considers the use of DEA for datasets with mixed continuous and discrete variables to ranking software projects. It uses the existing radial DEA model and extends the nonradial DEA model to allow for the use of mixed variables. Further efficiency scores from the two DEA models are averaged in an ensemble DEA score. Using three real‐world software engineering datasets, this study finds that the nonradial DEA and the ensemble DEA models have better discriminating power (lower tied efficiency scores) to rank software projects, and the radial DEA model generates more general ranking distribution (higher entropy) of normalized efficiency scores. The choice between selecting radial and nonradial DEA models for ranking software projects appears to depend on the extent to which managers want to introduce bias into the efficiency score ranking distribution. Radial models appear to have a lower bias than nonradial models. The ensemble DEA model appears to be the best performing DEA model for datasets containing two or more discrete and continuous variables.

A Comparison of Radial and Horizontal Macular Optical Coherence Tomography on Detection of Macular Pathology: A Prospective Study at an Academic Institution.

Optical coherence tomography (OCT) is useful in diagnosing and monitoring retinal pathology such as age-related macular degeneration, diabetic macular edema (DME), central serous chorioretinopathy, and epiretinal membrane, among others. This study compared the ability of horizontal (H) 25-, 13-, and 7-cut macular OCT vs 24-, 12-, and 6-cut radial (R) macular OCT in identifying various macular pathology. This was a prospective study of 161 established patients evaluated at Wilford Hall Eye Center Retina Clinic between September and October of 2019. Pathology included age-related macular degeneration, central serous chorioretinopathy, DME, and epiretinal membrane, among others. Patients obtained 25-, 13-, and 7-cut H raster OCT as well as 24-, 12-, and 6-cut R OCT. Primary outcomes were sensitivity in detecting macular fluid and each macular abnormality. The 24-cut radial (R24) OCT equally or out-performed the H25 (horizontal 25-cut OCT) in detecting macular fluid across all pathological groups. Generally, a higher number of cuts correlated with better detection of fluid. In detecting any macular abnormalities, H25, R24, and R12 had 100% sensitivity. R6 OCT had near 100% sensitivity across all groups, except for DME (95%). Overall, R OCT had better sensitivity (0.960) than H OCT (0.907) in detecting macular pathology. R outperformed H macular OCT in detecting fluid and other abnormalities. Clinically, both scanning patterns can be used by ophthalmologists in diagnosis and management of commonly encountered macular diseases. Technicians may be able to use a variety of these scans to screen for pathology prior to physician evaluation.

Comparison of Radial and Femoral Percutaneous Coronary Intervention.

The use of radial access for percutaneous coronary intervention is increasing in Nepal. However, there is limited study on the comparison of radial and femoral access in Nepal. This is the study comparing net adverse clinical events of radial with femoral access for intervention. This prospective study was conducted at Shahid Gangalal National Heart Center from January 2014 to June 2015 among 849 participations who underwent percutaneous coronary interventions, and 418 radial interventions were compared with 418 femoral interventions. A comparison was done in terms of 30- day rate of net adverse clinical events defined as the composite of death, myocardial infarction, stroke, target lesion revascularization and major bleeding. Incidence of net adverse clinical events was significantly lower in radial compared to femoral approach 18(4.30%) vs. 51 (12.2%), p= <0.001). Mortality observed in the radial approach was significantly lower (p=<0.001) compared to femoral. Procedure success was not significantly different p=0.629. The trans-radial approach had significantly higher crossover rate (p=0.001). Observed vascular access site complications (p=0.026) and hospital stay (p=<0.0001) were lower in the radial group. Radiation exposure measured by fluoroscopy exposure time was not significantly different between the two groups (p=0.290). Radial access is associated with a lower rate of net adverse clinical events at 30 days compared to femoral access. Radial access is safer and equally effective compared to femoral access in the context of Nepal.

Excess pressure as an analogue of blood flow velocity.

Derivation of blood flow velocity from a blood pressure waveform is a novel technique, which could have potential clinical importance. Excess pressure, calculated from the blood pressure waveform via the reservoir-excess pressure model, is purported to be an analogue of blood flow velocity but this has never been examined in detail, which was the aim of this study. Intra-arterial blood pressure was measured sequentially at the brachial and radial arteries via fluid-filled catheter simultaneously with blood flow velocity waveforms recorded via Doppler ultrasound on the contralateral arm (n = 98, aged 61 ± 10 years, 72% men). Excess pressure was derived from intra-arterial blood pressure waveforms using pressure-only reservoir-excess pressure analysis. Brachial and radial blood flow velocity waveform morphology were closely approximated by excess pressure derived from their respective sites of measurement (median cross-correlation coefficient r = 0.96 and r = 0.95 for brachial and radial comparisons, respectively). In frequency analyses, coherence between blood flow velocity and excess pressure was similar for brachial and radial artery comparisons (brachial and radial median coherence = 0.93 and 0.92, respectively). Brachial and radial blood flow velocity pulse heights were correlated with their respective excess pressure pulse heights (r = 0.53, P < 0.001 and r = 0.43, P < 0.001, respectively). Excess pressure is an analogue of blood flow velocity, thus affording the opportunity to derive potentially important information related to arterial blood flow using only the blood pressure waveform.

Comparison of Radial and Ulnar Artery Intervention in Patients With ST Elevated Myocardial Infarction

Comparison of Radial and Ulnar Artery Intervention in Patients With ST Elevated Myocardial Infarction

TCT-789 Comparison of Radial With Femoral Access Coronary Angiography in Patients With Previous Coronary Artery Bypass Surgery

TCT-789 Comparison of Radial With Femoral Access Coronary Angiography in Patients With Previous Coronary Artery Bypass Surgery

Comparison of Radial and Panel Menus in Virtual Reality

Although selection menus are widely used for interaction, their use on 3D virtual reality applications needs to be objectively assessed. The focus of this study is to evaluate a traditional panel and a radial menu in two distinct virtual environment placements (i.e. fixed on the wall and following the users' hands). Fifty-one participants used two different menus of the four possible combinations. To evaluate the menus' effectiveness and efficiency, we measured usability (System Usability Scale Questionnaire), user satisfaction (After-Scenario Questionnaire), time to finish the tasks (in seconds) and the number of unnecessary steps (errors) performed by the users. Overall results showed a clear preference for the traditional panel menu type and the fixed wall placement of the menu. We conclude that all menu types perform well, despite different user preferences, and that fixing the menu to the wall gives users a better overview of both the menu and the virtual environment, improving their ability to perceive their actions on the menu.

A Comparison of Radial and Linear Charts for Visualizing Daily Patterns.

Radial charts are generally considered less effective than linear charts. Perhaps the only exception is in visualizing periodical time-dependent data, which is believed to be naturally supported by the radial layout. It has been demonstrated that the drawbacks of radial charts outweigh the benefits of this natural mapping. Visualization of daily patterns, as a special case, has not been systematically evaluated using radial charts. In contrast to yearly or weekly recurrent trends, the analysis of daily patterns on a radial chart may benefit from our trained skill on reading radial clocks that are ubiquitous in our culture. In a crowd-sourced experiment with 92 non-expert users, we evaluated the accuracy, efficiency, and subjective ratings of radial and linear charts for visualizing daily traffic accident patterns. We systematically compared juxtaposed 12-hours variants and single 24-hours variants for both layouts in four low-level tasks and one high-level interpretation task. Our results show that over all tasks, the most elementary 24-hours linear bar chart is most accurate and efficient and is also preferred by the users. This provides strong evidence for the use of linear layouts - even for visualizing periodical daily patterns.

A Comparison of Radial and Rotational Plaid Speed Judgments

A Comparison of Radial and Rotational Plaid Speed Judgments

Experimental Validation of 3-D Reconstructed Pin Power Distributions in Full-Scale BWR Fuel Assemblies with Partial-Length Rods

Total fission rate measurements have been performed on full-size boiling water reactor fuel assemblies of type SVEA-96 Optima2 in the framework of phase III of the light water reactor (LWR)-PROTEUS experimental program at Paul Scherrer Institute. This paper presents comparisons of calculated, nodal reconstructed, pinwise total fission rate distributions with experimental results. Radial comparisons have been performed for the three axial sections of the assembly (96, 92, and 84 fuel pins), while three-dimensional (3-D) effects have been investigated at pellet level for the two transition regions, i.e., the tips of the short (one-third) and long (two-thirds) partial-length rods. The test zone has been modeled using two different code systems: HELIOS/PRESTO-2 and CASMO-5/SIMULATE-5. The former is presently used for core monitoring and design at the Leibstadt Nuclear Power Plant (KKL). The latter represents the most recent generation of codes constituting the widely applied CASMO/SIMULATE system. For representing the PROTEUS test zone boundaries, partial current ratios—derived from a 3-D Monte Carlo (MCNPX) model of the entire reactor—have been applied to the PRESTO-2 and SIMULATE-5 models in the form of two-group and five-group diagonal albedo matrices, respectively. The MCNPX results have also served as a reference high-order transport solution in the calculation-to-experiment (C/E) comparisons.It is shown that the performance of the nodal methodologies in predicting the global distribution of the total fission rate is very satisfactory. Considering the various radial comparisons, the standard deviations of the C/E distributions do not exceed 1.9% for any of the three methodologies—PRESTO-2, SIMULATE-5, and MCNPX. For the 3-D comparisons at pellet level, the corresponding standard deviations are 2.7%, 2.0%, and 2.1%, respectively.

Comparison of Radial and Femoral Access for Coronary Angiography Within South Australian Public Cardiac Catheterisation Facilities

analysed using the Ilumein offline review station (St Jude Medical) at 1mm intervals throughout the OCT pullback. Struts were classified as embedded, protruding or malapposed by measuring the distance from the endoluminal strut surface to the intimal wall using standard definitions. Results: A total of 12,853 struts were analysed in 60 patients. No significant difference in baseline charcterstics betweengroups. Therewere 83.3%males (n= 50)with a mean age of 61.86± 10.88, 25% of patients were diabetic. The Promus (n= 13) and Xience (n= 15) stents (each 90 m) contained similar rates of embedded struts, 45% and 57.8%, respectively. The thicker Cypher stent 160 m (n= 15) and BioMatrix 130 m (n= 17) stents had a total of 37.5% and 30.94% embeddedstruts, respectively.Cypher stentshad themost malapposition 10.7% compared with the thinner stents. Conclusion: Stent protrusion is more frequent in stents with thicker strut profiles compared with the thinner stents which are more embedded. How this translates to clinical outcomes remains to be seen. http://dx.doi.org/10.1016/j.hlc.2013.05.313

TCT-392 Silent Cerebral Infarcts Following Cardiac Catheterization: A Randomized Comparison Of Radial And Femoral Approaches

TCT-392 Silent Cerebral Infarcts Following Cardiac Catheterization: A Randomized Comparison Of Radial And Femoral Approaches

The Comparison of Radial and Axial Flow Porous Burners from Viewpoint of Output Radiative Heat Transfer and Emissions

In this paper, two types of porous burners with radial and axial flow have been modeled numerically and compared. For this purpose, governing equations were solved one-dimensionally for methane-air premix gas. The mechanism used in simulating combustion phenomenon was 15 stage reduced mechanism based on GRI3.0. In order to compare the two burners, the inlet flow rate and fuel-air ratio have been assumed equal for the two burners. The results of the study indicated that reduction in speed and increase in cross-section area in the direction of flow have a considerable influence on the behavior of radial burner in comparison to axial burner. Regarding temperature distribution inside the burner, it was observed that the two above mentioned factors can be influential in temperature of flame propagation region. Also, regarding distribution of CO and NO emission, the results indicate that the porous radial burner has lower emissions in comparison to the axial once. The output radiative heat transfer efficiency of the two burners was also compared and in this case also even the radial porous burner was found to be preferable.

Comparison of Radial and Femoral approaches in Primary and Rescue PCI

Comparison of Radial and Femoral approaches in Primary and Rescue PCI

Angioplastia coronária nas indicações off-label: comparação das vias radial vs. femoral

ABSTRACT Coronary Angioplasty in Off-Label Indications:Comparison of Radial vs. Femoral Approach Background: There is increasing interest in the use of theradial approach in diagnostic and therapeutic proceduresdue to several advantages such as patient comfort in theimmediate post-procedure with early return to daily routineactivities, decreased hospitalization time and consequentreduction of hospital costs and low puncture site complicationrates when compared with the femoral approach, reducingthe rate of major bleeding, which is in turn related toincreased risk of death and ischemic events. Method: Retrospective analysis of 1,807 consecutive patients under-going off-label percutaneous transluminal coronary angio-plasty (PTCA) from September 2006 to December 2009.The outcome of patients undergoing PTCA using the radialand femoral approaches during hospitalization and latefollow-up were compared. Results: The radial approachprevailed in younger, male patients with lower angiographiccomplexity, which was due to the learning curve. Majoradverse cardiac events (MACE), death and target-vesselrevascularization rates were lower when the radial approachwas used, both during hospitalization and in the late fol-low-up due to a more favorable clinical-angiographic pro-file. The femoral approach was an independent predictorof hospital MACE. The adjusted survival curve, however,showed that the access route did not have a significantimpact on long-term clinical events.

MRI of the Coronary Vessel Wall at 3 T: Comparison of Radial and Cartesian k-Space Sampling

The purpose of our study was to compare the quality of 3D gradient-echo images obtained using radial versus cartesian k-space sampling at 3 T. This study shows that the quality of coronary vessel wall imaging of the right coronary artery with radial k-space sampling in 3D turbo field-echo sequences is superior to cartesian k-space sampling at 3 T. Radial k-space sampling at 3 T makes it possible to combine low motion artifact susceptibility with high signal-to-noise ratio.