动脉瘤夹闭术后非螺旋采集CT血管造影：体外测试显示伪影减少。
Nonhelical acquisition CT angiogram after aneurysmal clipping: in vitro testing shows diminished artifact.
作者信息
Mamourian A C, Erkmen K, Pluta D J
机构信息
Department of Radiology, Dartmouth-Hitchcock Medical Center, Lebanon, NH 03756, USA.
出版信息
AJNR Am J Neuroradiol. 2008 Apr;29(4):660-2. doi: 10.3174/ajnr.A0893. Epub 2008 Jan 9.
Abstract
Imaging of the cerebral vessels with use of CT angiogram (CTA) after placement of aneurysmal clips is often limited by clip artifacts. We used a phantom to demonstrate a visible reduction in metal artifact when using the axial technique, compared with the usual CTA helical acquisition. This approach may have some advantage when used for CTA with 64-section scanners in the specific circumstance of immediate postoperative imaging after placement of cerebral aneurysmal clips.
摘要
动脉瘤夹置入后使用CT血管造影（CTA）对脑血管进行成像时，往往会受到夹子伪影的限制。我们使用了一个模型来证明，与常规CTA螺旋采集相比，采用轴向技术时金属伪影明显减少。在使用64层扫描仪进行CTA检查时，这种方法在脑动脉瘤夹置入术后立即成像的特定情况下可能具有一些优势。
相似文献
1
Nonhelical acquisition CT angiogram after aneurysmal clipping: in vitro testing shows diminished artifact.
AJNR Am J Neuroradiol. 2008 Apr;29(4):660-2. doi: 10.3174/ajnr.A0893. Epub 2008 Jan 9.
2
Computed tomographic angiography in the evaluation of clip placement for intracranial aneurysm.
Acta Neurochir (Wien). 2008 Jul;150(7):669-76. doi: 10.1007/s00701-008-1515-z. Epub 2008 May 21.
3
Minimizing clip artifacts in multi CT angiography of clipped patients.
AJNR Am J Neuroradiol. 2006 Jan;27(1):60-6.
4
Optimizing computed tomography to reduce artifacts from titanium aneurysm clips: an in vitro study. Technical note.
J Neurosurg. 2007 Dec;107(6):1238-43. doi: 10.3171/JNS-07/12/1238.
5
Vascular assessment after clipping surgery using four-dimensional CT angiography.
Neurosurg Rev. 2019 Mar;42(1):107-114. doi: 10.1007/s10143-018-0962-0. Epub 2018 Mar 3.
6
Subtraction 3D CT angiography with the orbital synchronized helical scan technique for the evaluation of postoperative cerebral aneurysms treated with cobalt-alloy clips.
AJNR Am J Neuroradiol. 2008 Jun;29(6):1071-5. doi: 10.3174/ajnr.A1040. Epub 2008 Mar 27.
7
Prototypical metal/polymer hybrid cerebral aneurysm clip: in vitro testing for closing force, slippage, and computed tomography artifact. Laboratory investigation.
J Neurosurg. 2007 Dec;107(6):1198-204. doi: 10.3171/JNS-07/12/1198.
8
Impact of metal artifact reduction software on image quality of gemstone spectral imaging dual-energy cerebral CT angiography after intracranial aneurysm clipping.
Neuroradiology. 2017 Sep;59(9):845-852. doi: 10.1007/s00234-017-1871-6. Epub 2017 Jul 27.
9
Multislice computed tomography angiography screening for new aneurysms in patients with previously clip-treated intracranial aneurysms: Feasibility, positive predictive value, and interobserver agreement.
J Neurosurg. 2006 Nov;105(5):682-8. doi: 10.3171/jns.2006.105.5.682.
10
Image quality and artefact generation post-cerebral aneurysm clipping using a 64-row multislice computer tomography angiography (MSCTA) technology: A retrospective study and review of the literature.
Clin Neurol Neurosurg. 2010 Jun;112(5):386-91. doi: 10.1016/j.clineuro.2010.02.001. Epub 2010 Mar 1.
引用本文的文献
1
Improved image quality in abdominal CT in patients who underwent treatment for hepatocellular carcinoma with small metal implants using a raw data-based metal artifact reduction algorithm.
Eur Radiol. 2017 Jul;27(7):2978-2988. doi: 10.1007/s00330-016-4660-4. Epub 2016 Dec 2.
2
Reduction of metallic coil artefacts in computed tomography body imaging: effects of a new single-energy metal artefact reduction algorithm.
Eur Radiol. 2016 May;26(5):1378-86. doi: 10.1007/s00330-015-3950-6. Epub 2015 Aug 14.
3
Quantitative analysis of factors affecting cobalt alloy clip artifacts in computed tomography.
J Korean Neurosurg Soc. 2014 Nov;56(5):400-4. doi: 10.3340/jkns.2014.56.5.400. Epub 2014 Nov 30.
4
The value of dual-energy CTA for control of surgically clipped aneurysms.
Eur Radiol. 2011 Oct;21(10):2193-201. doi: 10.1007/s00330-011-2147-x. Epub 2011 May 10.
5
[Modern cross-sectional imaging of head and neck vessels].
Radiologe. 2010 Apr;50(4):377-98. doi: 10.1007/s00117-009-1974-0.
本文引用的文献
1
Comparison of multislice computerized tomography angiography and digital subtraction angiography in the postoperative evaluation of patients with clipped aneurysms.
J Neurosurg. 2006 Mar;104(3):395-403. doi: 10.3171/jns.2006.104.3.395.
2
Minimizing clip artifacts in multi CT angiography of clipped patients.
AJNR Am J Neuroradiol. 2006 Jan;27(1):60-6.
3
Artifacts in CT: recognition and avoidance.
Radiographics. 2004 Nov-Dec;24(6):1679-91. doi: 10.1148/rg.246045065.
4
Intraoperative angiography during aneurysm surgery: a prospective evaluation of efficacy.
J Neurosurg. 2002 Jun;96(6):993-9. doi: 10.3171/jns.2002.96.6.0993.
5
Late angiographic follow-up review of surgically treated aneurysms.
J Neurosurg. 1999 Sep;91(3):396-401. doi: 10.3171/jns.1999.91.3.0396.
6
Titanium aneurysm clips: Part I--Mechanical, radiological, and biocompatibility testing.
Neurosurgery. 1996 Jun;38(6):1158-63; discussion 1164. doi: 10.1097/00006123-199606000-00022.
Zotero 插件