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Comprehensive 4D-flow cardiac magnetic resonance evaluation of the descending thoracic aorta in aortic regurgitation.
Eur Heart J Imaging Methods Pract
January 2025
Cardiology Department, Hospital Universitario Quirónsalud Madrid, Calle Diego de Velázquez, 1, Madrid 28223, Spain.
Aims: To assess the reproducibility of 4D-Flow cardiac magnetic resonance (CMR) parameters in the descending thoracic aorta-DTAo-(regurgitant fraction [RF], end-diastolic reverse flow [EDRF], and holodiastolic flow reversal [HDR]), and the relationship with RF in the sinotubular junction (STJ), and the left ventricular end-diastolic volume index (LVEDVI) in patients with chronic aortic regurgitation (AR).
Methods And Results: A descriptive study of these variables was conducted. A receiver operating characteristic curve was used to determine the optimal cut-off point.
HDR brachytherapy combined with external beam radiotherapy for unfavorable localized prostate cancer: A single center experience from inception to standard of care.
Brachytherapy
January 2025
BC Cancer Kelowna, Kelowna, British Columbia.
Purpose: High dose rate (HDR) brachytherapy is increasingly adopted for dose escalation in prostate cancer treatment. We report the clinical efficacy and toxicity of HDR prostate brachytherapy combined with external beam radiotherapy (EBRT) and evaluate the predictability of the biochemical definition of cure of 4-year PSA ≤0.2 ng/mL for failure free survival (FFS).
View Article and Find Full Text PDFThe influence of time and implants in high-dose rate image-guided adaptive brachytherapy for locally advanced cervical cancer.
Brachytherapy
January 2025
Department of Radiation Oncology, Institut Paoli-Calmettes, Marseille, France.
Purpose: To compare the clinical outcomes of two different schedules of modern image-guided adaptive brachytherapy (IGABT) in patients underwent chemoradiotherapy (CCRT) and high-dose rate (HDR) brachytherapy (BT) for locally advanced cervical cancer treated (LACC) METHODS AND MATERIALS: Data from medical records of all consecutive patients with histologically proven cervical cancer (FIGO 2018 stage IB-IVA) treated by HDR-BT after CCRT at our institution between 2016 and 2021 were reviewed.
Results: Two hundred and 8 patients with LACC FIGO 2018 stages (IB 20.7%; II 26.
In-silico evaluation of the effect of set-up errors on dose delivery during mouse irradiations with a Cs-137 cell irradiator-based collimator system.
Phys Eng Sci Med
January 2025
School of Clinical Sciences, Queensland University of Technology, Brisbane, QLD, Australia.
Set-up errors are a problem for pre-clinical irradiators that lack imaging capabilities. The aim of this study was to investigate the impact of the potential set-up errors on the dose distribution for a mouse with a xenographic tumour irradiated with a standard Cs-137 cell irradiator equipped with an in-house lead collimator with 10 mm diameter apertures. The EGSnrc Monte-Carlo (MC) code was used to simulate the potential errors caused by displacements of the mouse in the irradiation setup.
View Article and Find Full Text PDFInterstitial High-Dose-Rate Brachytherapy Combined with External Beam Radiation Therapy for Dose Escalation in the Primary Treatment of Locally Advanced, Non-Resectable Superior Sulcus (Pancoast) Tumors: Results of a Monocentric Retrospective Study.
J Clin Med
December 2024
Department of Radiotherapy and Radiation Oncology, Faculty of Medicine, University of Augsburg, 86156 Augsburg, Germany.
: To analyze the results of interstitial (IRT) high-dose-rate (HDR) brachytherapy (BT) in the primary treatment of patients with unresectable superior sulcus tumors (SST) combined with external beam radiotherapy (EBRT). : Between 2013 and 2023, seven patients with unresectable SST were treated with combined BT and EBRT with or without concomitant chemotherapy. The patients' median age was 64 years (range, 49-79 years) and median tumor volume was 146.
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