Artifacts associated with MR neuroangiography.
Artifacts associated with MR neuroangiography.
复制标题
与 MR 神经血管造影相关的伪影。
DOI:
--
复制
发表时间:
1992
期刊:
影响因子:
--
通讯作者:
David Norman
中科院分区:
文献类型:
--
作者:
J. Tsuruda;D. Saloner;David Norman
Neurovascular MR angiography (MRA) is rapidly gaining greater clinical acceptance. To provide functional information, novel techniques of acquisition, information processing, and display are used, generating a new set of artifacts. The purpose of this paper is to outline the causes, provide examples, and note clinical problems associated with MRA artifacts by grouping them into six common types: 1) poor visualization of small vessels, 2) overestimation of stenosis, 3) view-to-view variations, 4) false positives, 5) false negatives, and 6) vessel overlap. This in turn will lead to four generalized solutions: 1) optimize acquisition parameters, 2) edit volume boundaries before performing maximum intensity projection reconstructions, 3) refer to the individual source images, and 4) use alternative image processing. By organizing and simplifying both clinical problems and solutions into major categories, a greater understanding of the current clinical indications and the overall goals of MRA can be achieved.
影响因子:
19.7
作者:
Masaryk,AM;Ross,JS;DiCello,MC;Modic,MT;Paranandi,L;Masaryk,TJ
通讯作者:
Masaryk,TJ
影响因子:
19.7
作者:
Spritzer,CE;Pelc,NJ;Lee,JN;Evans,AJ;Sostman,HD;Riederer,SJ
通讯作者:
Riederer,SJ