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Zero-filling Interpolation Processing Technique Can Efficiently Suppress Segmental Stenosis Artifact on Small Artery of Anatomical Phantoms

Author: LinRui
Tutor: WuRenHua
School: Shantou University
Course: Internal Medicine
Keywords: Magnetic resonance angiography Contrast enhancement High spatial resolution Zero filling Digital subtraction angiography
CLC: R318.0
Type: Master's thesis
Year: 2005
Downloads: 10
Quote: 0
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Abstract


The purpose of the conventional enhanced magnetic resonance angiography (contrast-enhanced MR angiographyCE-MRA) as a non-invasive vascular imaging technology has been widely used in clinical practice , but there is still a lack of spatial resolution and image artifacts serious problem . The purpose of this experiment is a comparative study fluid circulation through the application of in vitro vascular model 0:00 Filling (Zero-fillingInterpolation Processing ZIP) technology , trying a more comprehensive assessment of ZIP technology in to improve enhanced magnetic resonance angiography spatial resolution and reduce image artifacts aspects of the value. Materials and methods using different size cavity diameter plastic pipe and electric water pump production in vitro fluid vascular model , the vessel model enhanced magnetic resonance angiography study two ZIP technology through the combination of four kinds of different ways : Ⅰ. ZIP1024 ZIP × 4 technology ; Ⅱ use only ZIP1024 technology ; Ⅲ. only use ZIP × 4 technology ; Ⅳ. not use ZIP technical . Maximum intensity projection image reconstruction after acquisition original image , and using the same method to measure the vessel diameter and signal - to - noise ratio in each group of images , the measurement results of the model blood vessel diameter , the edge sharpness of the model vascular image SNR , artifacts to assess and compare . Use the same model of vascular X-ray digital subtraction angiography (Digital Subtraction Angiography DSA) , CE-MRA

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