Nuclear magnetic resonance imaging of the abnormal live rat and correlations with tissue characteristics.
Nuclear magnetic resonance imaging of the abnormal live rat and correlations with tissue characteristics.
复制标题
异常活体大鼠的核磁共振成像及其与组织特征的相关性。
DOI：
10.1148/radiology.141.1.7197379
复制
发表时间：
1981
期刊：
影响因子：
19.7
通讯作者：
McRee,R
中科院分区：
文献类型：
--
作者：
Herfkens,R;Davis,P;Crooks,L;Kaufman,L;Price,D;Miller,T;Margulis,AR;Watts,J;Hoenninger,J;Arakawa,M;McRee,R
无菌和化脓性脓肿，血肿和各种植入和自发性肿瘤的活体大鼠的核磁共振（NMR）图像显示病理组织和周围正常组织之间具有良好的对比度区分。当T1和T2组织弛豫时间都用作标准时，这种分化是最大的。新生血管瘤的T1和T2值范围很广，可能与脑出血或血肿混淆。组织速率常数（1/T1和1/T2）主要取决于总含水量，但脂肪除外，其1/T2值远短于仅基于含水量的预期值。
Nuclear magnetic resonance (NMR) images of live rats with sterile and pyogenic abscesses, hematomas, and various implanted and spontaneous neoplasms demonstrated good contrast differentiation between pathologic and surrounding normal tissues. This differentiation was maximal when both the T1 and T2 tissue relaxation times were used as criteria. Neoplasms have a broad range of T1 and T2 values and may be confused with abscesses or hematomas. Tissue rate constants (1/T1 and 1/T2) are mainly dependent on total water content, the exception being fat, which has a 1/T2 value much shorter than that expected on the basis of water content alone.