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84 results for “holmium”
Specific Heat of Holmium in Gold and Silver at Low Temperatures - Data
<p>Data from measurements on the specific heat of a variety of Au:Ho and Ag:Ho alloys. This data is associated with the manuscript:</p> <p>Herbst, M., Reifenberger, A., Velte, C. <em>et al.</em> Specific Heat of Holmium in Gold and Silver at Low Temperatures. <em>J Low Temp Phys</em> <strong>202, </strong>106–120 (2021). https://doi.org/10.1007/s10909-020-02531-1</p> <p>For information on the motivation, measurement techniques, equipment, and data processing, please refer to this manuscript.</p>
Optimization of SPECT/CT based lung dose calculation for Holmium-166 hepatic radioembolization
<p><strong>Background</strong>: Quantitative SPECT of the lungs after intra-arterial hepatic radioembolization using Holmium-166 (<sup>166</sup>Ho)microspheres is essential to assess therapy safety. A SPECT estimated lung absorbed dose resulting from radioembolization of more than 30 Gy is a contra-indication for therapy. Earlier we showed the superiority of Monte Carlo-based iterative reconstructions over conventional reconstructions due to its quantitative nature, required for dosimetry, at the cost of substantial computation times. In clinical routine, however, the limited available time between scout imaging and therapy constrains its application. To reduce computation times, we investigated the minimum number of iterations required to guarantee a clinical acceptable accuracy in lung dose estimation using patient and phantom data.</p> <p><strong>Methods</strong>: <sup>166</sup>Ho scout SPECT data (range: 222-283 MBq) were used from 9 patients. SPECT images were Monte Carlo-based OSEM reconstructed (iterations: 30, subsets: 8). Additionally, the 4D XCAT anthropomorphic phantom was used to mimic SPECT studies with an injected scout activity of 250 MBq and with varying lung doses ranging from 0 to 15.6 mGy/MBq. These studies were reconstructed in the same way as the patient data.</p> <p><strong>Results: </strong>In all patients the lung absorbed dose upon OSEM convergence ranged from 0 to 0.025 mGy/MBq, and ranged from 0.002 to 0.078 mGy/MBq after five iterations, still well below the allowed 30 Gy in case treatment was proceeded. In the phantom data, the estimated lung dose ranged from 0.004 to 15 mGy/MBq upon convergence and from 0.03 to 13.9 mGy/MBq after five iterations, simulating situations well below and above an estimated treatment lung dose of 30 Gy. Importantly, the lung absorbed dose upon OSEM convergence was underestimated by 15% as compared to the actual simulated lung dose, and the dose after five OSEM iterations was underestimated by 9% as compared to the dose upon convergence. Both underestimations were irrespective of the magnitude of the lung dose and thus can be easily corrected for.</p> <p><strong>Conclusions</strong>: The number of OSEM iterations necessary for a quantitative estimate of the lung dose can be reduced from 30 to 5. The resulting six fold reduction in calculation time enables data processing of the scout images before therapy administration.</p>
Dataset for "Nanoparticle doping as a way to enhance holmium fiber lasers efficiency"
<p>This dataset contains the specific numerical values of fiber properties used in Figures 2-4.</p>
Tranexamic Acid to Improve Same-day Discharge Rates After Holmium Laser Enucleation of the Prostate (HoLEP)
ClinicalTrials.gov study NCT05082142. IPD Sharing: Not stated. Countries: 1. Publications: 1.
Holmium-166-radioembolization in NET After Lutetium-177-dotatate; an Efficacy Study
ClinicalTrials.gov study NCT02067988. IPD Sharing: UNDECIDED. Countries: 1. Publications: 6.
Comparison of Safety and Efficiency of 20w 30w Holmium Laser Device in Treatment of 1-2 cm Diameter Kidney Stones With RIRS
ClinicalTrials.gov study NCT02451319. IPD Sharing: Not stated. Countries: 1. Publications: 1.
Radioactive Holmium Microspheres for the Treatment of Liver Metastases
ClinicalTrials.gov study NCT01031784. IPD Sharing: Not stated. Countries: 1. Publications: 6.
Pelvic Floor Physical Therapy to Reduce Stress Urinary Incontinence After Holmium Laser Enucleation of the Prostate
ClinicalTrials.gov study NCT06209307. IPD Sharing: NO. Countries: 1. Publications: 11.
Effect of Laser Settings on Postoperative Voiding Symptoms in Patients Undergoing Holmium Laser Enucleation of the Prostate
ClinicalTrials.gov study NCT04699552. IPD Sharing: NO. Countries: 1. Publications: 15.
Surefire Infusion System vs. Standard Microcatheter Use During Holmium-166 Radioembolization
ClinicalTrials.gov study NCT02208804. IPD Sharing: Not stated. Countries: 1. Publications: 2.
Outcomes and Complications of Holmium Laser Enucleation of the Prostate in Expert Hands
ClinicalTrials.gov study NCT03583034. IPD Sharing: Not stated. Countries: 1. Publications: 1.
A Prospective, Multicenter, Open-label Study of the Beacon Platform for Holmium Laser Enucleation of the Prostate (HoLEP)
ClinicalTrials.gov study NCT06668142. IPD Sharing: NO. Countries: 2. Publications: 4.
Aquablation vs. Holmium Laser Enucleation of the Prostate in the Treatment of Benign Prostatic Hyperplasia in Medium to Large Size Prostates
ClinicalTrials.gov study NCT04560907. IPD Sharing: UNDECIDED. Countries: 1. Publications: 1.
Holmium Radioembolization as Adjuvant Treatment to RFA for Early Stage HCC: Dose Finding Study
ClinicalTrials.gov study NCT03437382. IPD Sharing: UNDECIDED. Countries: 1. Publications: 2.
Feasibility of Holmium-166 Micro Brachytherapy in Head and Neck Tumors
ClinicalTrials.gov study NCT02975739. IPD Sharing: UNDECIDED. Countries: 1. Publications: 4.
Comparison of Holmium Laser and Thulium Laser for Mini PCNL
ClinicalTrials.gov study NCT06266793. IPD Sharing: NO. Countries: 1. Publications: 21.
Holmium Laser vs Bipolar Enucleation of a Large Volume BPH: a Randomised Controlled Study
ClinicalTrials.gov study NCT03998150. IPD Sharing: NO. Countries: 1. Publications: 1.
Comparison Between Bipolar Transurethral Resection of the Prostate and Moses Assisted Holmium Laser Enucleation of the Prostate
ClinicalTrials.gov study NCT06649357. IPD Sharing: YES. Countries: 1. Publications: 9.
Super-Pulsed Thulium Fiber Laser Versus Holmium:YAG Laser in Retrograde Intrarenal Surgery for Upper Ureteral and Renal Stones
ClinicalTrials.gov study NCT07012941. IPD Sharing: NO. Countries: 1. Publications: 13.
Radioactive Holmium Microspheres for the Treatment of Unresectable Liver Metastases
ClinicalTrials.gov study NCT01612325. IPD Sharing: Not stated. Countries: 1. Publications: 3.
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International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.