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磁共振成像中的固有对比度及对比度增强的潜力。1984年L. 亨利·加兰讲座。

Inherent contrast in magnetic resonance imaging and the potential for contrast enhancement. The 1984 L. Henry Garland lecture.

作者信息

Brasch R C

出版信息

West J Med. 1985 Jun;142(6):847-53.

PMID:2992172
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC1306213/
Abstract

Magnetic resonance (MR) imaging is emerging as a powerful new diagnostic tool valued for its apparent lack of adverse effects. The excellent inherent contrast between biologic tissues and fluids afforded by MR imaging is one of the foremost characteristics of this technique and depends on physicochemical properties such as hydrogen density and T1 and T2 relaxation rates, on magnetic field strength and on operator-chosen factors for acquiring the MR imaging signal. Pharmaceutical contrast-enhancing agents shorten the MR imaging process and improve sensitivity and diagnostic accuracy.

摘要

磁共振（MR）成像正成为一种强大的新型诊断工具，因其明显没有不良反应而受到重视。MR成像所提供的生物组织与液体之间出色的固有对比度是该技术的首要特征之一，它取决于诸如氢密度、T1和T2弛豫率等物理化学性质、磁场强度以及操作员选择的用于获取MR成像信号的因素。药物性对比增强剂可缩短MR成像过程并提高敏感性和诊断准确性。

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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e4a2/1306213/2d5e0bf825c1/westjmed00178-0115-a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e4a2/1306213/96698bce7929/westjmed00178-0115-b.jpg
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West J Med. 1985 Jun;142(6):847-53.
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