Results 61 to 70 of about 521,076 (209)

Active contours based on weighted gradient vector flow and balloon forces for medical image segmentation [PDF]

, 2014
Active contours, or snakes, have been widely used for image segmentation purposes. However, high noise sensitivity and poor performance over weak edges are the most acute issues that hinder the segmentation accuracy of these curves, particularly in ...
Victor Sanchez, Khadidos, Alaa, Sanchez Silva, Victor, Chang-Tsun Li, Alaa Khadidos, Li, Chang-Tsun   +5 more
core   +1 more source

Comparative Performance Analysis of an Open Source Motion‐Compensated Cardiac Diffusion Sequence Across Different MRI Systems and Gradient Strengths—A Pilot Study

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose To validate the performance of an open‐source cardiac diffusion sequence framework and to investigate hardware‐based performance differences. Methods Three second order motion compensated sequence files were compiled using Pulseq and applied across different MRI systems to image five volunteers.
Eric Arbes, Ariel Hannum, Johannes Fischer, Qingping Chen, Sebastian Littin, Alexander Maier, Michael Bock, Simon Reiss   +7 more
wiley   +1 more source

Cine español 1975-1992 [PDF]

, 1992
Vertigo. Revista de cine (1992). Cine español 1975-1992. Ateneo da Coruña.
Vertigo. Revista de cine
core  

Radiological assessment of effectiveness of soluble RAGE in attenuating Angiotensin II-induced LVH mouse model using in vivo 9.4T MRI

Scientific Reports, 2019
We investigated the effectiveness of soluble Receptor for Advanced Glycation Endproducts (sRAGE) in attenuating angiotensin II (AngII)-induced left ventricular hypertrophy (LVH) using in vivo 9.4T cine-magnetic resonance imaging (CINE-MRI).
Dan Heo, Soyeon Lim, Jiye Lee, Myung Eun Lee, Soyoung Cho, Jisu Jeong, Miran Seo, Sungha Park, Jaemoon Yang   +8 more
doaj   +1 more source

Evaluation of cerebrospinal fluid flow dynamic changes in patients with idiopathic intracranial hypertension using phase contrast cine MR imaging

The Egyptian Journal of Neurology, Psychiatry and Neurosurgery, 2020
Background Idiopathic intracranial hypertension (IIH) mainly affects overweight women in the middle age period. The pathophysiology of IIH stays unclear, but suggested mechanisms include excess CSF production, reduced CSF absorption, increased brain ...
Tamer Belal, Abd-Elhalim Al Tantawy, Fatema Mohamed Sherif, Alshaimaa Ramadan   +3 more
doaj   +1 more source

Motion‐Robust Approach for 4D Cardiac Cine Using 2D Real‐Time Acquisitions and Slice‐to‐Volume Reconstruction

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose 4D cardiac cine is a powerful tool for comprehensive cardiac function assessment; however, current methods rely on regular breathing and are sensitive to bulk motion and arrhythmia. We aim to develop a 4D cardiac cine approach that requires no patient cooperation and is robust to irregular breathing, bulk motion, and cardiac arrhythmia.
Ye Tian, Anand A. Joshi, Jon A. Detterich, John C. Wood, Krishna S. Nayak   +4 more
wiley   +1 more source

The Impact of Water Exchange on Estimates of Myocardial Blood Flow and Extracellular Volume Fraction Using Dynamic Contrast‐Enhanced MRI in Patients Treated for Severe Aortic Stenosis

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose To investigate the impact of intra/extracellular water exchange (WX) on quantitative dynamic contrast‐enhanced (DCE) MRI in patients with severe aortic stenosis (AS). The aims were to compare low‐dose (WX insensitive) and high‐dose (WX sensitive) DCE‐MRI measurements, and to compare data acquired before and after aortic valve ...
Alex Makins, John D. Biglands, Noor Sharrack, Peter Kellman, Sven Plein, David L. Buckley   +5 more
wiley   +1 more source

Cine y Geografía: espacio geográfico, paisaje y territorio en las producciones cinematográficas [PDF]

, 2007
Resumen: El trabajo presenta una aproximación teórica y analítica sobre las relaciones entre cine y espacio geográfico. En primer lugar se señalan las cualidades del cine frente a otros soportes de representación del territorio a la vez que se ...
Gámir Orueta, Agustín, Manuel Valdés, Carlos   +1 more
core   +1 more source

Towards Faster Fetal 3D CINE Cardiac MRI Reconstruction Using Region‐Optimized Virtual Coils (ROVir)

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose To develop and evaluate, in a feasibility study, a computationally efficient image‐reconstruction pipeline for 3D balanced steady state free precession (bSSFP) CINE fetal cardiac MRI that reduces radial streaking artifacts, increases effective temporal resolution, and improves diagnostic image quality compared with previous work ...
Marjolein Piek, Johannes Töger, Einar Heiberg, Katrin Fricke, Erik Hedström, Anthony H. Aletras   +5 more
wiley   +1 more source

Standardized Reporting of Cardiac Magnetic Resonance Examinations in Children With Cardiac Diseases and Adults With Congenital Heart Disease: A Scientific Statement From the Association for European Pediatric and Congenital Cardiology (AEPC) and the International Society for Magnetic Resonance in Medicine (ISMRM)

Journal of Magnetic Resonance Imaging, EarlyView.
Francesca Raimondi, Inga Voges, Lamia Ait‐Ali, Sonya Babu‐Narayan, Rene Botnar, Barbara Burkhardt, Adrienne Campbell‐Washburn, Dominik Daniel Gabbert, Georg Hansmann, Willem A. Helbing, Hasan Hosan, Sylvia Krupickova, Heiner Latus, Duarte Martins, Colin McMahon, Christian Meierhofer, Vivek Muthurangu, Tiina Ojala, Pim van Ooij, Claudia Prieto, Milan Prsa, Kuberan Pushparajah, José F. Rodríguez Palomares, Samir Sarikouch, Lars Grosse‐Wortman, F. Gerald Greil, Heynric Grotenhuis   +26 more
wiley   +1 more source