肺功能MRI

The open nuclear medicine journal Pub Date : 2010-10-12 DOI:10.2174/1876388X01002010125

Y. Berthezène

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摘要

肺实质成像对MRI来说是一个独特的挑战。有限的信号是由低质子密度、敏感性伪影和生理运动(心脏搏动、呼吸)引起的。MRI技术的改进扩大了肺实质疾病的潜在调查与肺灌注的评估。最近吸入非质子核磁共振，如超极化气体(3He或129Xe)可以提供功能通气图像。

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Functional MRI of the Lung

Imaging of the pulmonary parenchyma represents a unique challenge for MRI. Limited signal is caused by low proton density, susceptibility artefacts, and physiological motion (cardiac pulsation, respiration). Improvements in MRI techniques have extended the potential for investigations of pulmonary parenchymal disease with the evaluation of lung perfusion. More recently inhalation of non proton-MRI nuclei such as hyperpolarized gases (3He or 129Xe) can provide functional ventilation images.

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The open nuclear medicine journal

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