3D contrast MR angiography
Non-invasive, high resolution contrast arteriography without arterial catheterization or nephrotoxicity is possible using Gadolinium contrast and an MR scanner. The success of this technique is reflected by its incorporation into clinical practice in centers throughout the world. It has been applied to multiple vascular territories, using a variety of magnets, and imaging strategies. A thorough understanding of the underlying mechanisms and proper technique are essential to fully exploit the diagnostic potential of this new form of angiography. This book will familiarize the reader with the basic principles of 3D Contrast MRA. All relevant technical aspects are addressed, imaging protocols are provided, and tailored imaging strategies are described for different vascular regions. The book also includes a glossary.
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3D Contrast MRA 3D data set 3D MR DSA 3D volume abdominal aorta abdominal aortic aneurysms acquired anatomy angiogram angiography aortic dissection arterial phase artery stenosis assessment atherosclerotic axial blood bolus branch vessels cardiac carotid artery clinical contrast agent contrast bolus contrast dose contrast injection Contrast MRA images Contrast MRA method contrast travel contrast-enhanced coronal plane data acquisition descending aorta diagnostic distal echo enhancement evaluation false lumen field-of-view Figure flip angle Fourier gadolinium Gadolinium-enhanced Gd-DTPA gradient graft iliac arteries image data image quality image subtraction injection rate k-space Magn Reson Imaging magnetic resonance matrix mesenteric artery mesenteric ischemia MIP projection mmol/kg MRA acquisition MRA data set MRA techniques msec occlusion paramagnetic patients performed phase encoding portal vein portal venous pulmonary arteries pulse sequence Radiology reduce sagittal scan second breath-hold slice test bolus thoracic aorta time-resolved tion Tl relaxation transplant trast venous phase voxel zero-filling