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Proton radiotherapy significantly reduces pneumonia in oesophageal cancer patients.
Int J Radiat Oncol Biol Phys
January 2025
Department of Radiation Oncology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands. Electronic address:
Background: Neoadjuvant chemoradiotherapy (nCRT) followed by surgical resection is the current standard of care for oesophageal cancer (EC) patients. This treatment is associated with a variety of complications, with pneumonia being the most common. We hypothesize that proton radiotherapy (PRT) can significantly reduce the incidence of pneumonia compared to photon radiotherapy (PhRT).
View Article and Find Full Text PDFEvaluating Neoadjuvant Immunochemotherapeutic Response for Bladder Carcinoma Using Amide Proton Transfer-Weighted MRI.
Acad Radiol
January 2025
Department of Radiology, The First Affiliated Hospital, Sun Yat-Sen University, 58 Zhongshan Road 2, Guangzhou, 510080, Guangdong, PR China (L.K., B.W., Q.C., L.M., W.C., Y.C., Y.G., H.W.). Electronic address:
Rationale And Objectives: To investigate the feasibility of amide proton transfer-weighted (APTw) and diffusion-weighted MRI in evaluating the response of bladder cancer (BCa) to neoadjuvant immunochemotherapy.
Materials And Methods: From June 2021 to July 2023, participants with pathologically confirmed BCa were prospectively recruited to undergo MRI examinations, including APTw and diffusion-weighted MRI before and after neoadjuvant immunochemotherapy. Histogram analysis features (mean, median, and entropy) were extracted from pre- and post-treatment APTw and apparent diffusion coefficient (ADC) maps, respectively.
Characterization and dosimetric predictors for absolute lymphocyte count changes during neoadjuvant chemoradiotherapy with or without pembrolizumab for esophageal squamous cell carcinoma: an analysis of a prospective cohort.
Radiat Oncol
January 2025
Department of Radiation Oncology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, 200025, P.R. China.
Aim: To characterize the differences of dynamic changes for absolute lymphocyte count (ALC) among esophageal squamous cell carcinoma (ESCC) patients treated with neoadjuvant chemoradiotherapy (nCRT) with or without pembrolizumab, as well as to investigate the clinical and lymphocyte-related organs dosimetric parameters that would impact ALC nadir during nCRT.
Materials And Methods: A total of 216 ESCC patients who received nCRT (with pembrolizumab 144; without pembrolizumab: 72) were identified from a prospective cohort. Weekly and 1-month post-nCRT ALC were identified.
Prognostic Relevance of Immunosuppressive CD155/TIGIT Signaling in Locally Advanced Rectal Cancer Patients With Neoadjuvant Chemoradiotherapy.
Anticancer Res
January 2025
Department of Biomedical Imaging and Radiological Science, China Medical University, Taichung, Taiwan, R.O.C.;
Background/aim: The CD155/TIGIT axis has recently emerged as a promising immunotherapeutic target in several malignancies. However, its prognostic relevance within the tumor microenvironment (TME) in patients with locally advanced rectal cancer (LARC) who have received neo-adjuvant chemoradiotherapy (neoCRT) remains unclarified.
Materials And Methods: The levels of tumor CD155 and TIGIT T cells in pair-matched pre-neoCRT biopsies and post-neoCRT surgical tissues were evaluated in 110 LARC tissues using immunohistochemistry.
Cancer outcomes and cardiopulmonary toxicities for black patients with breast cancer treated with proton therapy.
JNCI Cancer Spectr
December 2024
Department of Radiation Oncology, University of Maryland School of Medicine, Baltimore, MD, United States.
Background: Black women have a 40% higher breast cancer (BC) mortality rate than White women and are at a higher risk of acquiring cardiovascular disease. Proton therapy (PT) can be used to mitigate cardiac radiation exposure; however, PT remains a scarce resource in the United States. We report on the cardiovascular profiles of patients undergoing PT to determine the potential benefit of PT for Black women when compared to non-Black patients.
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