1,288 results match your criteria: "Dept. of Radiation Oncology; Acharya Tulsi Regional Cancer Treatment & Research Institute[Affiliation]"

Purpose: To train and validate KB prediction models by merging a large multi-institutional cohort of whole breast irradiation (WBI) plans using tangential fields.

Methods: Ten institutions (INST1-INST10, 1481 patients) developed their KB-institutional models for left/right WBI (ten models for right and eight models for left). The transferability of models among centers was assessed based on the overlap of the geometric Principal Component (PC1) of each model when applied to other institutions and/or on the presence of significantly different optimization policies.

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Background: Hippocampal avoidance during prophylactic cranial irradiation (HA-PCI) is proposed to reduce neurocognitive decline, while preserving the benefits of PCI. We evaluated whether (HA-)PCI induces changes in white matter (WM) microstructure and whether sparing the hippocampus has an impact on preserving brain network topology. Additionally, we evaluated associations between topological metrics with hippocampal volume and neuropsychological outcomes.

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Climate change is the greatest threat to human existence. Currently it impacts breast cancer care by disrupting treatment, by food poverty and economic hardship and through fossil fuel pollution which increases breast cancer incidence. These impacts are greatest in those already experiencing deprivation.

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. This study aimed to evaluate two real-time target tracking approaches for magnetic resonance imaging (MRI) guided radiotherapy (MRgRT) based on foundation artificial intelligence models..

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Apoptosis-stimulating proteins of p53 (ASPPs) are a family of proteins that modulate key tumor suppressor pathways via direct interaction with p53. Deregulation of these proteins promotes cancer development and impairs sensitivity to systemic (chemo)therapy and radiation. In this study, we describe that the inhibitor of ASPP (iASPP) is frequently highly expressed in acute myeloid leukemia (AML) and that overexpression correlates with a poor clinical outcome.

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Meningiomas are the most common primary intracranial tumors of adults. For meningiomas that progress or recur despite surgical resection and radiotherapy, additional treatment options are limited due to lack of proven efficacy. Meningiomas show recurring molecular aberrations, which may serve as predictive markers for systemic pharmacotherapies with targeted drugs or immunotherapy, radiotherapy or radioligand therapy.

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Background/aims: Epithelioid hemangioendothelioma (EHE) is an uncommon vascular tumor that commonly affects the liver. Hepatic EHE (HEHE) presents with variable clinical and histopathological features. We describe detailed clinico-histopathological features, differential diagnosis, and treatment outcomes of the cases of HEHE diagnosed in our center.

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Background: Advanced Therapy Medicinal Products (ATMPs) for human use have advanced globally with the rapid adoption of Chimeric Antigen Receptor T-cell (CAR-T) therapies in haemato-oncology. CAR-T cell therapy and ATMPs have unique, significant acute and chronic toxicities, and appropriate patient care is crucial. Significant challenges, including the need for nurse education and training, accompany optimal patient success and benefits.

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Despite early promising results with denosumab treatment in giant cell tumor of bone (GCTB), recent studies have raised concerns about a high local recurrence rate following preoperative denosumab administration and joint preservation surgery. This retrospective study evaluated data from 25 high-risk GCT patients (Campanacci grade II or III with features like soft tissue extension, pathological fracture, minimal periarticular or subarticular bone) treated with five doses of neoadjuvant denosumab injection followed by either curettage and cementing ( = 13) or joint reconstruction with fibular graft/endoprosthesis ( = 12) between 2014 and 2019. With an average follow-up of 40 months, the study found only one patient of local recurrence.

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Background: The European Organization of Research and Treatment of Cancer (EORTC) has recently developed and validated a patient-reported outcome measure (PROM) for sexual health (SH) in cancer patients. Here, we present results from a secondary analysis of the EORTC QLQ-SH22 validation study. The objective was to investigate the impact of cancer treatment on SH over the disease trajectory into survivorship in patients who underwent curative treatment.

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To evaluate the apoptosis-inducing properties of undoped and silver-doped-zinc-oxide nanoparticles (SDZONs) synthesized using against MCF-7 (Luminal-A) and MDA-MB-231 (Triple-negative) breast cancer cell lines. Nanostructures were developed by facile biohydrothermal method and characterized by x-ray diffraction (XRD), Fourier transform infrared (FTIR), and high resolution transmission electron microscopy (HR-TEM). The comparative effect of doping and dose concentration of nanostructures on cytotoxicity was measured using MTT and trypan-blue-exclusion assay.

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In this work, we aim to predict the survival time (ST) of glioblastoma (GBM) patients undergoing different treatments based on preoperative magnetic resonance (MR) scans. The personalized and precise treatment planning can be achieved by comparing the ST of different treatments. It is well established that both the current status of the patient (as represented by the MR scans) and the choice of treatment are the cause of ST.

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Article Synopsis
  • Older patients with advanced hormone receptor-positive/HER2-negative breast cancer benefit from combining CDK4/6 inhibitors with standard endocrine therapy, according to recent studies.
  • There is a higher risk of side effects from these inhibitors in older patients, leading to a trend of starting them on lower doses, although this practice lacks strong evidence.
  • The IMPORTANT-trial aims
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Perfect is the enemy of good: Reply to Struikmans et al.

Radiother Oncol

January 2025

Dept of Oncology, Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark; Dept of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark.

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Article Synopsis
  • Radiomics can effectively analyze features from both tumor and normal tissue to predict clinical outcomes, including the effects of radiation treatments and potential therapeutic benefits of human embryonic stem cell-derived extracellular vesicles (EVs).
  • In a study involving 72 mice, researchers evaluated the impact of X-ray radiation on lung tissue and subsequently injected EVs, while extracting 851 radiomic features to train classification models predicting treatment outcomes.
  • The study found that classification models achieved high accuracy in distinguishing between irradiated versus unirradiated groups and noted specific radiomic features that indicated the effects of radiation and the potential sparing effects of EV treatment.
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Background And Objective: Oral cancer surgery and the associated reconstructive procedures cause mechanical and neurological impairment of swallowing. Despite postoperative rehabilitation, functional impairment of swallowing remains a concern. This study is to investigate the potential benefits of prehabilitation with preoperative swallowing exercises to patients undergoing composite resections and compartmental tongue resections so that it results in better swallowing outcomes and improved quality of life after surgery.

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The EORTC 22922/10925 trial investigating regional nodal irradiation in stage I-III breast cancer: Outcomes according to locoregional and systemic therapies.

Radiother Oncol

December 2024

Department of Radiation Oncology, Institute Verbeeten, Tilburg, the Netherlands; Department of Radiation Oncology, Iridium Netwerk, Wilrijk-Antwerp, Belgium; University of Antwerp, Faculty of Medicine and Health Sciences, Wilrijk-Antwerp, Belgium.

Unlabelled: The EORTC 22922/10925 trial aimed to investigate the impact on overall survival (OS) of elective internal mammary and medial supraclavicular (IM-MS) radiation therapy (RT) in breast cancer stage I-III. Surgery for the primary tumour and axillary lymph nodes, chest wall RT, boost RT after whole breast RT in breast conserving therapy (BCT), RT to operated axilla, and systemic therapy were per physician's preference. The aim of the current analysis is to assess breast cancer outcomes according to different locoregional and systemic therapy used in the trial.

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Purpose/objectives: The indications, techniques, and extent to which proton beam therapy (PBT) is employed for breast cancer are unknown. We seek to determine PBT utilization for breast cancer.

Materials/methods: The Particle Therapy Co-Operative Group (PTCOG) Breast Subcommittee developed an IRB-approved 29-question survey and sent it to breast cancer radiation oncologists at all active PBT centers worldwide in June 2023.

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Selection for proton radiotherapy of grade 1-3 glioma patients.

Clin Transl Radiat Oncol

September 2024

Danish Centre for Particle Therapy, Aarhus University Hospital, Aarhus, Denmark.

Background: For adult patients with grade 1-3 gliomas, identifying patients with an indication for proton therapy (PT) can be challenging due to sparse evidence supporting its benefits. In this study, we aimed to ensure national consensus and develop a decision support tool to aid clinicians in identifying patients with grade 1-3 gliomas eligible for PT.

Methods: Sixty-one historic patients referred for postoperative radiotherapy for glioma grade 1-3 were included in this study and had new photon therapy and PT plans calculated.

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Background: The rate of primary surgery for human papillomavirus-related oropharynx cancer (HPVOPC) has recently declined, while utilization of transoral robotic surgery (TORS) has lagged at community cancer centers (CCs). We hypothesize that differences in overall survival (OS) exist between patients undergoing surgery for HPVOPC at CCs and low (<15 TORS/year; LVACs) and high (≥15 TORS/year; HVACS) TORS volume academic centers.

Methods: Cases from the US National Cancer Database with a diagnosis of HPVOPC from 2010-2019 that underwent primary surgical treatment were included.

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In the era of free flaps, we propose a simple yet effective local flap, the digastric muscle flap, to reconstruct floor of the mouth defects and to repair an orocervical fistula that is created during excision of tongue and/or floor of the mouth malignancies. The digastric muscle flap was used in 15 patients who were diagnosed with oral squamous cell carcinoma of the tongue and/or floor of the mouth. Partial glossectomy was performed in 4 cases, hemiglossectomy in 4 cases, and wide local excision in 7 cases.

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Background And Aims: Proton therapy (PRT) for Head Neck Cancer (HNC), in view of the Bragg peak, spares critical structures like oral mucosa better than IMRT. In PRT, mouth-bites, besides immobilising and separating mucosal surfaces, may also negate the end-of-range effect. We retrospectively analysed the details and dosimetric impact of mouth-bites in PRT for HNC.

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Aims: Multidisciplinary tumor boards (MDTs) are an integral part of ensuring high-quality, evidence-based and personalized cancer care. In this study, we aimed to evaluate the adherence to and implementation of MDT recommendations in patients with oligometastatic disease (OMD).

Methods: We screened all oncologic positron emission tomography (PET) scans conducted at a single comprehensive cancer center in 2020.

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