منابع مشابه
Utility of Cardiac Gating for Pulmonary Perfusion MRI
INTRODUCTION Cardiac motion is a common source of artifacts when imaging the chest with methods such as pulmonary perfusion MRI and pulmonary MR angiography (MRA). To minimize these artifacts, the MR sequence is often ECG-gated such that data are only acquired during a portion of the cardiac cycle when the heart is relatively quiescent; typically during diastole. However, this reduces scan effi...
متن کاملSingle breathhold three-dimensional cardiac cine MRI with whole ventricular coverage and retrospective cardiac gating using kat ARC
Background For quantitative volumetric assessments of cardiac function, 3D cine images depicting motion of the entire ventricle in a complete cardiac cycle are needed. However, due to limited acceleration capability, breathheld 3D cine MRI is not obtainable using conventional parallel imaging. Several kt-acceleration methods have demonstrated high-acceleration capability for dynamic MRI by expl...
متن کاملRetrospective CINE MRI of the mouse heart
E. Heijman, W. de Graaf, C. Diekmann, A. Nauerth, G. Strijkers, K. Nicolay Biomedical NMR, Department of Biomedical Engineering, Eindhoven University of Technology, Eindhoven, Netherlands, Bruker BioSpin MRI GmbH, Ettlingen, Germany Introduction In cardiac research in vivo studies of mice are indispensable to gain an improved understanding of cardiovascular disease mechanisms and to develop nov...
متن کاملkt SPIRiT for Ultra-Fast Cardiac Cine Imaging with Prospective or Retrospective Cardiac Gating
Introduction: Cardiac cine imaging requires ultra-fast acquisition of high spatiotemporal resolution images within a short breathhold, which is difficult for conventional parallel imaging (PI). Recent progress has increased the achievable acceleration mainly from two perspectives. First, various kt methods [1,2,3] have proven capable of providing reasonable image quality at high acceleration fa...
متن کاملA statistical method for retrospective cardiac and respiratory motion gating of interventional cardiac x-ray images.
PURPOSE Image-guided cardiac interventions involve the use of fluoroscopic images to guide the insertion and movement of interventional devices. Cardiorespiratory gating can be useful for 3D reconstruction from multiple x-ray views and for reducing misalignments between 3D anatomical models overlaid onto fluoroscopy. METHODS The authors propose a novel and potentially clinically useful retros...
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ژورنال
عنوان ژورنال: Magnetic Resonance in Medicine
سال: 2006
ISSN: 0740-3194,1522-2594
DOI: 10.1002/mrm.20794