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Relaxation Technique

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241. Parallel simulations for QUAntifying RElaxation magnetic resonance constants (SQUAREMR): an example towards accurate MOLLI T1 measurements. Full Text available with Trip Pro

Parallel simulations for QUAntifying RElaxation magnetic resonance constants (SQUAREMR): an example towards accurate MOLLI T1 measurements. T1 mapping is widely used today in CMR, however, it underestimates true T1 values and its measurement error is influenced by several acquisition parameters. The purpose of this study was the extraction of accurate T1 data through the utilization of comprehensive, parallel Simulations for QUAntifying RElaxation Magnetic Resonance constants (SQUAREMR (...) ) of the MOLLI pulse sequence on a large population of spins with physiologically relevant tissue relaxation constants.A CMR protocol consisting of different MOLLI schemes was performed on phantoms and healthy human volunteers. For every MOLLI experiment, the identical pulse sequence was simulated for a large range of physiological combinations of relaxation constants, resulting in a database of all possible outcomes. The unknown relaxation constants were then determined by finding the simulated signals

2015 Journal of Cardiovascular Magnetic Resonance

242. A general model to calculate the spin-lattice (T1) relaxation time of blood, accounting for haematocrit, oxygen saturation and magnetic field strength. Full Text available with Trip Pro

A general model to calculate the spin-lattice (T1) relaxation time of blood, accounting for haematocrit, oxygen saturation and magnetic field strength. Many MRI techniques require prior knowledge of the T1-relaxation time of blood (T1bl). An assumed/fixed value is often used; however, T1bl is sensitive to magnetic field (B0), haematocrit (Hct), and oxygen saturation (Y). We aimed to combine data from previous in vitro measurements into a mathematical model, to estimate T1bl as a function of B0

2015 Journal of Cerebral Blood Flow and Metabolism

243. Effect of modified hold-relax stretching and static stretching on hamstring muscle flexibility. Full Text available with Trip Pro

. There was a significant difference between the static stretching and control groups and between the modified hold-relax stretching and control groups. [Conclusion] The results of this study indicate that both the modified hold-relax stretching technique and static stretching are equally effective, as there was no significant difference in improving the hamstring muscle flexibility between the two groups. (...) Effect of modified hold-relax stretching and static stretching on hamstring muscle flexibility. [Purpose] The aim of present study was to compare the effectiveness of modified hold-relax stretching and static stretching in improving the hamstring muscle flexibility. [Subjects and Methods] Forty-five male subjects with hamstring tightness were included in this study. The subjects were randomly placed into three groups: the modified hold-relax stretching, static stretching and control groups

2015 Journal of physical therapy science Controlled trial quality: uncertain

244. In-vivo T2 Relaxation Times of Asymptomatic Cervical Intervertebral Discs Full Text available with Trip Pro

In-vivo T2 Relaxation Times of Asymptomatic Cervical Intervertebral Discs Limited research exists on T2-mapping techniques for cervical intervertebral discs and its potential clinical utility. The objective of this research was to investigate the in-vivo T2-relaxation times of cervical discs, including C2-C3 through C7-T1. Ten asymptomatic subjects were imaged using a 3.0 T MR scanner and a sagittal multi-slice multi-echo sequence. Using the mid-sagittal image, intervertebral discs were divided (...) discs (discs between C2 and C6). The results also showed spatial homogeneity of T2 values in the C3-C4, C4-C5, and C5-C6 discs, while C2-C3, C6-C7, and C7-T1 showed significant differences between ROIs. The findings indicate there may be inherent differences in T2-relaxation time properties between different cervical discs. Clinical evaluations utilizing T2-mapping techniques in the cervical spine may need to be level-dependent.

2015 Skeletal radiology

245. COPD Patients Have Short Lung Magnetic Resonance T<sub>1</sub> Relaxation Time. Full Text available with Trip Pro

COPD Patients Have Short Lung Magnetic Resonance T1 Relaxation Time. Magnetic resonance imaging (MRI) may provide attractive biomarkers for assessment of pulmonary disease in clinical trials as it is free from ionizing radiation, minimally invasive and allows regional information. The aim of this study was to characterize lung MRI T1 relaxation time as a biomarker of chronic obstructive pulmonary disease (COPD); and specifically its relationship to smoking history, computed (...) as a repeatable, radiation free, non-invasive imaging technique in the evaluation of COPD.

2015 COPD

246. Comparison of the effectiveness of low pressure pneumoperitoneum with profound muscle relaxation during laparoscopic donor nephrectomy to optimize the quality of recovery during the early post-operative phase: study protocol for a randomized controlled cl Full Text available with Trip Pro

Comparison of the effectiveness of low pressure pneumoperitoneum with profound muscle relaxation during laparoscopic donor nephrectomy to optimize the quality of recovery during the early post-operative phase: study protocol for a randomized controlled cl Since technique modifications of laparoscopic donor nephrectomy, e.g. retroperitoneoscopic donor nephrectomy or hand-assistance, have not shown significant benefit regarding safety or improvement of recovery, further research should focus

2015 Trials Controlled trial quality: predicted high

247. Rotating Frame Relaxation Imaging in Patients With Multiple Sclerosis

: December 2017 Estimated Study Completion Date : May 2018 Resource links provided by the National Library of Medicine related topics: related topics: Groups and Cohorts Go to Group/Cohort Intervention/treatment Multiple Sclerosis Brain MRI using advanced MR techniques Other: Brain MRI Outcome Measures Go to Primary Outcome Measures : MR relaxation values 0 [ Time Frame: Baseline ] Aim is to measure different quantitative MR relaxation values (e.g. Traff, T1rho) in different brain areas of patients (...) Rotating Frame Relaxation Imaging in Patients With Multiple Sclerosis Rotating Frame Relaxation Imaging in Patients With Multiple Sclerosis - Full Text View - ClinicalTrials.gov Hide glossary Glossary Study record managers: refer to the if submitting registration or results information. Search for terms x × Study Record Detail Saved Studies Save this study Warning You have reached the maximum number of saved studies (100). Please remove one or more studies before adding more. Rotating Frame

2015 Clinical Trials

248. Fentanyl and Propofol for Tracheal Intubation During Sevoflurane Induction Without Muscle Relaxants in Children

Fentanyl and Propofol for Tracheal Intubation During Sevoflurane Induction Without Muscle Relaxants in Children Fentanyl and Propofol for Tracheal Intubation During Sevoflurane Induction Without Muscle Relaxants in Children - Full Text View - ClinicalTrials.gov Hide glossary Glossary Study record managers: refer to the if submitting registration or results information. Search for terms x × Study Record Detail Saved Studies Save this study Warning You have reached the maximum number of saved (...) studies (100). Please remove one or more studies before adding more. Fentanyl and Propofol for Tracheal Intubation During Sevoflurane Induction Without Muscle Relaxants in Children The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our for details. ClinicalTrials.gov Identifier: NCT02442128 Recruitment Status : Completed First Posted : May 13, 2015 Last

2015 Clinical Trials

249. Preoperative Relaxation and Intensified Patient Surgery Education in Patients Undergoing Cholecystectomy

relaxation program preoperative relaxation program Behavioral: relaxation program relaxation and mindfulness techniques such as body scan, breathing meditation or imagination exercises 1 week program, one introductory session and daily home practice Experimental: preoperative surgery education single education unit to understand the complete surgical procedures Behavioral: surgery education intensified education unit to reduce anxiety and stress, by using pictures and videos of rooms, and procedures (...) of the planned surgery 1 single unit in the week before the surgery Experimental: preoperative relaxation program+preoperative surgery education preoperative relaxation program AND single education unit Behavioral: relaxation program relaxation and mindfulness techniques such as body scan, breathing meditation or imagination exercises 1 week program, one introductory session and daily home practice Behavioral: surgery education intensified education unit to reduce anxiety and stress, by using pictures

2015 Clinical Trials

250. Effects of Preoperative Relaxation and Intensified Surgery Education in Patients Undergoing Herniotomy

: preoperative relaxation program preoperative relaxation program Behavioral: relaxation program relaxation and mindfulness techniques such as body scan, breathing meditation or imagination exercises 1 week programm, one introductory session and daily home practice Experimental: preoperative surgery education single education unit to understand the complete surgical procedures Behavioral: surgery education intensified education unit to reduce anxiety and stress, by using pictures and videos of rooms (...) , and procedures of the planned surgery 1 single unit in the week before the surgery Experimental: preoperative relaxation program+preoperative surgery education preoperative relaxation program AND single education unit Behavioral: relaxation program relaxation and mindfulness techniques such as body scan, breathing meditation or imagination exercises 1 week programm, one introductory session and daily home practice Behavioral: surgery education intensified education unit to reduce anxiety and stress, by using

2015 Clinical Trials

251. Efficacy of progressive muscle relaxation, mental imagery, and phantom exercise training on phantom limb: a randomized controlled trial. (Abstract)

of PLS at follow-up evaluation, 1 month after the end of the treatment.Combined training of progressive muscle relaxation, mental imagery, and modified phantom exercises should be taken into account as a valuable technique to reduce phantom limb pain and sensation.Copyright © 2015 American Congress of Rehabilitation Medicine. Published by Elsevier Inc. All rights reserved. (...) Efficacy of progressive muscle relaxation, mental imagery, and phantom exercise training on phantom limb: a randomized controlled trial. To evaluate the reduction in phantom pain and sensation with combined training of progressive muscle relaxation, mental imagery, and phantom exercises.Randomized controlled prospective trial with 2 parallel groups.Amputee unit of a rehabilitation hospital.Subjects with unilateral lower limb amputation (N=51) with phantom limb pain (PLP) and/or phantom limb

2015 Archives of physical medicine and rehabilitation Controlled trial quality: uncertain

252. Do sleep hygiene measures and progressive muscle relaxation influence sleep bruxism? Report of a randomised controlled trial. (Abstract)

Do sleep hygiene measures and progressive muscle relaxation influence sleep bruxism? Report of a randomised controlled trial. The aim of this study was to assess the effects of sleep hygiene measures combined with relaxation techniques in the management of sleep bruxism (SB) in a double-blind, parallel, controlled, randomised clinical trial design. Sixteen participants (mean ± s.d. age = 39·9 ± 10·8 years) were randomly assigned to a control group (n = 8) or to the experimental treatment group (...) (n = 8). Participants belonging to the latter group were instructed to perform sleep hygiene measures and progressive muscle relaxation techniques for a 4-week period. Two polysomnographic recordings, including bilateral masseter electromyographic activity, were made: one prior to the treatment and the other after the treatment period. The number of bruxism episodes per hour, the number of burst per hour and the bruxism time index (i.e. the percentage of total sleep time spent bruxing) were

2015 Journal of oral rehabilitation Controlled trial quality: uncertain

253. Relaxation and guided imagery do not reduce stress, pain and unpleasantness for 11 to 12-year-old girls during vaccinations. Full Text available with Trip Pro

Relaxation and guided imagery do not reduce stress, pain and unpleasantness for 11 to 12-year-old girls during vaccinations. Relaxation and guided imagery is a distraction technique known to reduce discomfort during paediatric medical procedures. We examined whether its use decreased the stress experienced by 11- to 12-year-old girls receiving the human papilloma virus vaccination, as well as the intensity and unpleasantness of any pain.A randomised crossover trial was conducted with 37 girls (...) . During the first vaccination, each girl was randomised to receive either relaxation and guided imagery or standard care. They then received the other form of care during the second vaccination. Salivary cortisol was measured before each vaccination, and 30 minutes after it was administered. The girls reported pain intensity and pain unpleasantness before and directly after each vaccination and stress after each vaccination.On a group level, relaxation and guided imagery did not decrease cortisol

2015 Acta paediatrica (Oslo, Norway : 1992) Controlled trial quality: uncertain

254. Reducing Irrational Beliefs and Pain Severity in Patients Suffering from Non-Cardiac Chest Pain (NCCP): A Comparison of Relaxation Training and Metaphor Therapy. Full Text available with Trip Pro

controlled trial, 33 participants were randomly divided into a relaxation training group (n= 13), a metaphor therapy group (n = 10), and a control group (n = 10), and were studied for 4 weeks. The two tools used in this research were the Brief Pain Inventory (BPI) index for determining the degree of pain and the short version of the Jones Irrational Belief Test. Metaphor therapy and a relaxation technique based on Öst's treatment were used as the interventions. The collected data were analyzed (...) Reducing Irrational Beliefs and Pain Severity in Patients Suffering from Non-Cardiac Chest Pain (NCCP): A Comparison of Relaxation Training and Metaphor Therapy. Patients suffering from non-cardiac chest pain (NCCP) can interpret their chest pain wrongly despite having received a correct diagnosis. The objective of this study was to compare the efficacy of the relaxation method with metaphor therapy for reducing irrational beliefs and pain severity in patients with NCCP.Using a randomized

2015 The Korean journal of pain Controlled trial quality: uncertain

255. Effects of contract-relax vs static stretching on stretch-induced strength loss and length-tension relationship. (Abstract)

Effects of contract-relax vs static stretching on stretch-induced strength loss and length-tension relationship. The purpose of this study was to determine the acute effects of contract-relax stretching (CRS) vs static stretching (SS) on strength loss and the length-tension relationship. We hypothesized that there would be a greater muscle length-specific effect of CRS vs SS. Isometric hamstring strength was measured in 20 healthy people at four knee joint angles (90°, 70°, 50°, 30°) before (...) and after stretching. One leg received SS, the contralateral received CRS. Both stretching techniques resulted in significant strength loss, which was most apparent at short muscle lengths [SS: P = 0.025; stretching × angle P < 0.001; 11.7% at 90° P < 0.01; 5.6% at 70° nonsignificant (ns); 1.3% at 50° ns; -3.7% at 30° ns. CRS: P < 0.001; stretching × angle P < 0.001; 17.7% at 90°, 13.4% at 70°, 11.4% at 50°, all P < 0.01, 4.3% at 30° ns]. The overall stretch-induced strength loss was greater (P = 0.015

2015 Scandinavian journal of medicine & science in sports Controlled trial quality: uncertain

256. Diazepam and Jacobson's progressive relaxation show similar attenuating short-term effects on stress-related brain glucose consumption. (Abstract)

to reference control subjects, the PR and diazepam groups showed a statistically significant, bilateral and generalized cortical hypometabolism. Regions showing the most prominent changes were the prefrontal cortex and anterior cingulate cortex. No significant differences were identified in the direct comparison between relaxation technique and sublingual diazepam. Our findings suggest that relaxation induced by a physical/psychological procedure can be as effective as a reference anxiolytic in reducing (...) Diazepam and Jacobson's progressive relaxation show similar attenuating short-term effects on stress-related brain glucose consumption. A non-pharmacological method to reduce anxiety is "progressive relaxation" (PR). The aim of the method is to reduce mental stress and associated mental processes by means of progressive suppression of muscle tension. The study was addressed to evaluate changes in brain glucose metabolism induced by PR in patients under a stressing state generated

2015 European psychiatry : the journal of the Association of European Psychiatrists Controlled trial quality: uncertain

257. Curcumin Relaxes Precontracted Guinea Pig Gallbladder Strips via Multiple Signaling Pathways Full Text available with Trip Pro

Curcumin Relaxes Precontracted Guinea Pig Gallbladder Strips via Multiple Signaling Pathways Curcumin (diferuloymethane) is the active ingredient of the dietary spice turmeric. Curcumin modulates various signalling molecules, including inflammatory agents, transcription factors, protein kinases and cell cycle regulatory proteins. The purpose of this study was to determine if curcumin had an effect on gallbladder motility.A pharmacologic in vitro technique was used. Since curcumin relaxed both (...) cholecystokinin octapeptide- (CCK) and KCl-induced tension of guinea pig gallbladder strips in a concentration dependent manner, an in vitro technique was used to determine which second messenger system(s) mediated the observed relaxation. Paired t-tests, t-tests and analysis of variance were used for statistical analysis. Differences between mean values of P < 0.05 were considered significant.To determine if protein kinase A (PKA) mediated the curcumin-induced relaxation, PKA inhibitor 14-22 amide

2015 Gastroenterology research

258. Impact of the Relaxation Response Resiliency Program on Patients With Atrial Fibrillation

. iii. Weeks 1 - 8: subjects will meet with the clinician/staff member as a group once a week for 1.5 hours each where they will be taught a variety of techniques to elicit the relaxation response as well as other cognitive skills. At the end of the 4th (mid-point) and 8th (last) weekly session, subjects will answer questionnaires. iv. 6 month follow up: 3 months after the final 3RP session to answer questionnaires. v. Subjects will be asked to keep track of their AF episodes during the course (...) therapy for AF and willing to continue on the same treatment regimen for 8 weeks while participating in the study. No current or prior practice of yoga, meditation, guided imagery or other techniques that elicit relaxation response (RR). Able to provide informed consent and to understand written and spoken English. Exclusion Criteria: End Stage renal failure or heart failure, severe unstable medical or psychiatric disease Patients deemed unable to complete protocol due to cognitive or other reasons

2015 Clinical Trials

259. Preoperative Relaxation and Intensified Patient Surgery Education in Patients Undergoing Colorectal Surgery

and mindfulness techniques such as body scan, breathing meditation or imagination exercises 1 week program, one introductory session and daily home practice Experimental: preoperative surgery education single education unit to understand the complete surgical procedures Behavioral: surgery education intensified education unit to reduce anxiety and stress, by using pictures and videos of rooms, and procedures of the planned surgery 1 single unit in the week before the surgery Experimental: preop relaxation (...) and surgery education preoperative relaxation program AND single education unit Behavioral: relaxation program relaxation and mindfulness techniques such as body scan, breathing meditation or imagination exercises 1 week program, one introductory session and daily home practice Behavioral: surgery education intensified education unit to reduce anxiety and stress, by using pictures and videos of rooms, and procedures of the planned surgery 1 single unit in the week before the surgery Outcome Measures Go

2015 Clinical Trials

260. Relaxed Linearized Algorithms for Faster X-Ray CT Image Reconstruction Full Text available with Trip Pro

Relaxed Linearized Algorithms for Faster X-Ray CT Image Reconstruction Statistical image reconstruction (SIR) methods are studied extensively for X-ray computed tomography (CT) due to the potential of acquiring CT scans with reduced X-ray dose while maintaining image quality. However, the longer reconstruction time of SIR methods hinders their use in X-ray CT in practice. To accelerate statistical methods, many optimization techniques have been investigated. Over-relaxation is a common (...) technique to speed up convergence of iterative algorithms. For instance, using a relaxation parameter that is close to two in alternating direction method of multipliers (ADMM) has been shown to speed up convergence significantly. This paper proposes a relaxed linearized augmented Lagrangian (AL) method that shows theoretical faster convergence rate with over-relaxation and applies the proposed relaxed linearized AL method to X-ray CT image reconstruction problems. Experimental results with both

2015 IEEE transactions on medical imaging

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