Results 31 to 40 of about 521,076 (209)

Is High Temporal Resolution Achievable for Paediatric Cardiac Acquisitions during Several Heart Beats? Illustration with Cardiac Phase Contrast Cine-MRI. [PDF]

PLoS ONE, 2015
During paediatric cardiac Cine-MRI, data acquired during cycles of different lengths must be combined. Most of the time, Feinstein's model is used to project multiple cardiac cycles of variable lengths into a mean cycle.To assess the effect of Feinstein ...
Laurent Bonnemains, Freddy Odille, Christophe Meyer, Gabriella Hossu, Jacques Felblinger, Pierre-André Vuissoz   +5 more
doaj   +1 more source

Role of Cine-Magnetic Resonance Imaging in the Assessment of Mediastinal Masses with Uncertain/Equivocal Findings from Pre-Operative Computed Tomography Scanning

Diagnostics
Background: Malignant neoplasms originating from or involving the mediastinum represent a diagnostic and therapeutic challenge when they are in contact with nearby cardiovascular structures.
Umberto Cariboni, Lorenzo Monti, Emanuele Voulaz, Efrem Civilini, Enrico Citterio, Costanza Lisi, Giuseppe Marulli   +6 more
doaj   +1 more source

Neural Fields for Highly Accelerated 2D Cine Phase Contrast MRI

Advanced Science, EarlyView.
ABSTRACT 2D cine phase contrast (CPC) MRI provides quantitative information on blood velocity and flow within the human vasculature. However, data acquisition is time‐consuming, motivating the reconstruction of the velocity field from undersampled measurements to reduce scan times. In this work, neural fields are proposed as a continuous spatiotemporal
Pablo Arratia, Martin J. Graves, Mary McLean, Carolin Pirkl, Carola‐Bibiane Schönlieb, Timo Schirmer, Florian Wiesinger, Matthias J. Ehrhardt   +7 more
wiley   +1 more source

Real-time target localization on 1.5 T magnetic resonance imaging linac orthogonal cine images using transfer learning

Physics and Imaging in Radiation Oncology
Background and purpose: Deep learning-based tumor tracking is promising for real-time magnetic-resonance-imaging (MRI)-guided radiotherapy. We investigate the applicability of a tumor tracking model developed for 0.35 T MRI-linac sagittal cine-MRI for 1 ...
Yiling Wang, Elia Lombardo, Jie Wang, Yu Fan, Yue Zhao, Stefanie Corradini, Claus Belka, Marco Riboldi, Christopher Kurz, Guillaume Landry   +9 more
doaj   +1 more source

Long-Term Neuropsychological Sequelae in HIV-Seronegative Cryptococcal Meningoencephalitis Patients with and without Ventriculoperitoneal Shunts: A Cine MRI Study

Behavioural Neurology, 2015
Background. Hydrocephalus in cryptococcal meningoencephalitis is most commonly managed with a ventriculoperitoneal shunt. This study applied cine magnetic resonance imaging (MRI) to evaluate initial disease severity on long-term cerebrospinal fluid (CSF)
Meng-Hsiang Chen, Cheng-Hsien Lu, Hung-Chen Wang, Hsiu-Ling Chen, Nai-Wen Tsai, Shau-Hsuan Li, Nai-Wen Hsu, Wei-Ming Lin, Chia-Te Kung, Wei-Che Lin   +9 more
doaj   +1 more source

A Large Retrospective Study to Evaluate Utility of Zephyr Covered Stent in Transcatheter Closure of Sinus Venosus Defects

Catheterization and Cardiovascular Interventions, EarlyView.
ABSTRACT Background Transcatheter closure (TCC) of sinus venosus defects (SVD) using balloon‐expandable covered stents is an emerging alternative to surgery. ZephyrCS (Sahajanand Laser Technologies, Gandhinagar, India) is available in long lengths to suit SVD closure.
Pramod Sagar, Puthiyedath Thejaswi, Kothandam Sivakumar, Praveen Ashok Kumar   +3 more
wiley   +1 more source

Sacubitril/valsartan preserves regional cardiac function following myocardial infarction in rats

ESC Heart Failure, Volume 12, Issue 2, Page 1304-1315, April 2025.
Parts of the figure were drawn by using pictures from Servier Medical Art. Servier Medical Art by Servier is licensed under a Creative Commons Attribution 3.0 Unported License (https://creativecommons.org/licenses/by/3.0/). Abstract Aims Sacubitril/valsartan (Sac/Val) is used for treatment of heart failure. The effect of Sac/Val on regional dysfunction
Einar Sjaastad Nordén, Bård Andre Bendiksen, Kaja Knudsen Bergo, Emil Knut Stenersen Espe, Gary McGinley, Almira Hasic, Ida Marie Hauge‐Iversen, Hege Katrin Ugland, Xin Shen, Michael Frisk, Nishani S. Mabotuwana, William E. Louch, Rizwan I. Hussain, Lili Zhang, Ivar Sjaastad, Alessandro Cataliotti, Geir Christensen   +16 more
wiley   +1 more source

First experimental demonstration of magnetic resonance-guided multileaf collimator tracking for (ultra-)hypofractionated prostate radiotherapy

Physics and Imaging in Radiation Oncology
Background and purpose:: (Ultra-)hypofractionated radiotherapy is an effective treatment for localized prostate cancer, but intrafraction motion can increase toxicity and/or reduce treatment efficacy. Therefore, motion management is essential. This study
Prescilla Uijtewaal, Pim T.S. Borman, Peter L. Woodhead, Hans C.J. de Boer, Bas W. Raaymakers, Martin F. Fast   +5 more
doaj   +1 more source

Variations of MRI-assessed peristaltic motions during radiation therapy. [PDF]

PLoS ONE, 2018
PURPOSE:Understanding complex abdominal organ motion is essential for motion management in radiation therapy (RT) of abdominal tumors. This study investigates abdominal motion induced by respiration and peristalsis, during various time durations relevant
Farshad Mostafaei, An Tai, Eenas Omari, Yingqiu Song, James Christian, Eric Paulson, William Hall, Beth Erickson, X Allen Li   +8 more
doaj   +1 more source

SPARCL1 and NT‐proBNP as biomarkers of right ventricular‐to‐pulmonary artery uncoupling in pulmonary hypertension

ESC Heart Failure, Volume 12, Issue 2, Page 1416-1426, April 2025.
Abstract Aims SPARCL1 was recently identified as a biomarker of right ventricular (RV) maladaptation in patients with pulmonary hypertension (PH), and N‐terminal pro‐brain natriuretic protein (NT‐proBNP) is an established biomarker of RV failure in PH. The present study investigated whether NT‐proBNP and SPARCL1 concentrations are associated with load ...
Oliver Dörr, Stanislav Keranov, Paulina van Wickern, Holger Nef, Christian Hamm, Pascal Bauer, Christian Troidl, Samuel Sossalla, Sandra Voss, Christoph Liebetrau, Manuel J. Richter, Henning Gall, Werner Seeger, Ardeschir Ghofrani, Athiththan Yogeswaran, Khodr Tello   +15 more
wiley   +1 more source