Results 71 to 80 of about 4,390 (171)

Free‐Breathing 3D Whole Heart and Aorta Cine MRI Without Contrast Agent—Comparison to Clinical Standard

Journal of Magnetic Resonance Imaging, Volume 64, Issue 2, Page 524-535, August 2026.
ABSTRACT Background The demand for cardiac MRI is increasing with the growing burden of cardiovascular disease. However, conventional protocols require sequential acquisitions for multi‐breath‐hold 2D cine and 3D MR angiography (MRA), which is time‐consuming.
Ruixin Chen, Huangling Lu, Alexandru Cernicanu, Jos Westenberg, Merlijn Sevenster, Jochen Keupp, Jakob Meineke, Hildo J. Lamb   +7 more
wiley   +1 more source

Raman Line Scan Analyses and a New Hypothesis for the Formation of Anatase‐Hosting Microbialites: Study of the Stromatolites From Saint‐Jean‐de‐la‐Rivière, Cotentin, France

Journal of Raman Spectroscopy, Volume 57, Issue 8, Page 1463-1480, August 2026.
Micrometer analysis of millimeter lines of Raman spectra concludes in the association of anatase and graphitized organic matter (graphogen). The photosynthetic microorganisms at the origin of the microbialites produce O2, which is transformed by TiO2 into reactive species that, in turn, decompose the organic matter of the microorganisms. ABSTRACT Raman
Marie‐Paule Bassez
wiley   +1 more source

A multidisciplinary experimental and methodological investigation of electron and proton minibeams in the framework of the INFN MIRO project

Medical Physics, Volume 53, Issue 8, August 2026.
Abstract Background The clinical translation of Minibeam RT (MBRT) has recently started thanks to the first human treatments recently performed. However, despite experimental evidence, the impact of the dose distribution parameters involved on the magnitude of the effect itself and the underlying radiobiological mechanisms are still only partially ...
Francesco Romano, Francesca Cella Zanacchi, Esther Ciarrocchi, Gaia Franciosini, Giuliana Milluzzo, Emanuele Scifoni, Anna Vignati, Said Ahmad, Silvia Arezzini, Andrea Attili, Marco Battestini, Jacopo Bernardini, Matteo Bettanin, Alessandra Bisio, Maria Giuseppina Bisogni, Igor Bodrenko, Giulio Bordieri, Valentina Bravatà, Alberto Burattini, Massimo Camarda, Francesco Paolo Cammarata, Simone Capaccioli, Lorenzo Castelli, Andrea Cavalieri, Mariagrazia Celentano, Enrica Chiadroni, Francesco Giuseppe Cordoni, Elena Corvaia, Mario Costa, Alessandro Curcio, Eleonora Da Pozzo, Martina De Felice, Francesca Del Debbio, Francesco D'Errico, Maria Cristina D'Oca, Beatrice D'Orsi, Umberto Deut, Elisabetta Durisi, Maria Evelina Fantacci, Stefano Farina, Giuseppe Felici, Arianna Ferro, Luca Ficcadenti, Antonino Formuso, Giusi Irma Forte, Simona Giordanengo, Alessia Giuliano, Lucia Giuliano, Luca Lanzanò, Stefania Linsalata, Simone Lossano, Margherita Maffei, Michela Marafini, Maurizio Marrale, Maurizio Massa, Luigi Masturzo, Enrico Mazzoni, Mauro Migliorati, Felix Mas Milian, Luigi Minafra, Andrea Moggi, Diango Montalvan Olivares, Marco Montefiori, Matteo Morrocchi, Andrea Mostacci, Franco Mostardi, Chinonso Okpuwe, Fabiola Paiar, Luigi Palumbo, Vincenzo Patera, Jake Harold Pensavalle, Gaia Pucci, Flaminia Quattrini, Alessandra Retico, Valeria Rosso, Giorgio Russo, Roberto Sacchi, Alessio Sarti, Silvia Scalisi, Camilla Scapicchio, Angelo Schiavi, Paolo Stochino, Enrica Strettoi, Francesco Tommasino, Valentina Tozzini, Giacomo Traini, Gabriele Trovato, Alice Usai, Francesco Urso, Fabio Di Martino   +89 more
wiley   +1 more source

Local Radiation Complications Following Proton Therapy for Uveal Melanoma

Oftalʹmologiâ
Purpose: to study the frequency and clinical symptoms of local radiation complications that occur after proton therapy in patients with uveal melanoma using pencil beam scanning technology.
I. E. Panova, E. M. Svistunova, N. A. Vorobyev, N. I. Martynova, I. A.I. Al-Mousa   +4 more
doaj   +1 more source

Modelling dose and dose‐averaged linear energy transfer to predict high‐grade temporal lobe necrosis following skull‐base proton therapy

Medical Physics, Volume 53, Issue 8, August 2026.
Abstract Background In skull‐base proton therapy (PT), severe toxicity outcomes such as temporal lobe necrosis (TLN) may be associated with inadequate management of the actual radiobiological effectiveness (RBE) of proton beams. Combining dose‐averaged linear energy transfer (LETd) and dose may be crucial in treatment plan optimization and evaluation ...
Giulia Fontana, Elisa Fiorina, Sara Lillo, Lucia Pia Ciccone, Giulia Riva, Alessandro Vai, Mario Ciocca, Alberto Iannalfi, Silvia Molinelli, Ester Orlandi   +9 more
wiley   +1 more source

Towards automated dose‐guided patient positioning at clinical timescale in head‐and‐neck cancer proton radiotherapy

Medical Physics, Volume 53, Issue 8, August 2026.
Abstract Background In intensity modulated proton therapy (IMPT) accurate patient positioning prior to treatment delivery is important to ensure that the prescribed dose is delivered as intended. Typically, in‐room 3D imaging is utilized to position the patient based on anatomical features, which can be challenging due to interfractional anatomical ...
Femke Oosterhof, Gabriel Guterres Marmitt, Alexander M. Kamerbeek, Jeffrey Free, Gerolf Meulman, Zohreh Shahpouri, Pietro Pisciotta, Johannes A. Langendijk, Stefan Both   +8 more
wiley   +1 more source

Navigator‐Based Slice Tracking for Multiband Accelerated Liver DWI

Magnetic Resonance in Medicine, Volume 96, Issue 2, Page 852-861, August 2026.
ABSTRACT Purpose Clinical liver diffusion‐weighted imaging (DWI) suffers from long measurement time and respiratory motion. In this study, we employ a navigator‐based slice tracking technique (NAV) to prospectively compensate for respiratory motion in multiband (MB) accelerated liver DWI.
Ke Zhang, Simon M. F. Triphan, Congcong Fu, Na Zhang, Christian H. Ziener, Mark E. Ladd, Heinz‐Peter Schlemmer, Hans‐Ulrich Kauczor, Oliver Sedlaczek   +8 more
wiley   +1 more source

Proton beam therapy in paediatric radiation oncology: Defining the limitations, uncertainties and optimisation of treatment plans

EJC Paediatric Oncology
Proton Beam Therapy (PBT) is an increasingly utilised modality for treating tumours by utilising the physical properties of accelerated proton beams. This review explores the development of PBT, its dosimetric advantages over conventional x-ray-based ...
C.S.M. Gillies, P. Lim, C. Dunlea, B. Timmermann, C. Alapetite, S. Bolle, I.F. Kristensen, K. Seiersen, Y. Lassen-Ramshad   +8 more
doaj   +1 more source

Dual X-ray absorptiometry: a comparison between fan beam and pencil beam scans

The British Journal of Radiology, 1993
Abstract The recent introduction of dual X-ray absorptiometry (DXA) systems with fan beam instead of conventional pencil beam scanning geometry represents a significant technical advance in bone densitometry. This report describes phantom and in-vivo studies of the effect of the change in beam configuration on DXA measurements.
Blake, G M, Parker, J C, Buxton, F M, Fogelman, I   +3 more
openaire   +2 more sources

Dose comparison of proton beam therapy with and without a multileaf collimator in the treatment of multiple hepatocellular carcinoma

Physics and Imaging in Radiation Oncology
Background and purpose: Proton beam therapy (PBT) offers dosimetric advantages over conventional photon-based radiation therapy in treating hepatocellular carcinoma (HCC) because it more effectively spares normal liver tissue. This study investigated the
Fang-Jing Li, Jen-Yu Cheng, Yu-Ming Wang, Meng-Wei Ho, Bing-Shen Huang   +4 more
doaj   +1 more source