Abstract:
:A method for cardio-thoracic multislice spiral CT imaging with ECG gating for suppression of heart pulsation artifacts is introduced. The proposed technique offers extended volume coverage compared with standard ECG-gated spiral scan and reconstruction approaches for cardiac applications: Thin-slice data of the entire thorax can be acquired within one breath-hold period using a four-slice CT system. The extended volume coverage is enabled by a modified approach for ECG-gated image reconstruction. For a CT system with 0.5-s gantry rotation time, images are reconstructed with 250-ms image temporal resolution. Instead of selecting scan data acquired in exactly the same phase of the cardiac cycle for each image as in standard ECG-gated reconstruction techniques, the patient's ECG signal is used to omit scan data acquired during the systolic phase of highest cardiac motion. With this approach cardiac pulsation artifacts in CT studies of the aorta, of paracardiac lung segments, and of coronary bypass grafts can be effectively reduced.
journal_name
Eur Radioljournal_title
European radiologyauthors
Flohr T,Prokop M,Becker C,Schoepf UJ,Kopp AF,White RD,Schaller S,Ohnesorge Bdoi
10.1007/s00330-002-1388-0subject
Has Abstractpub_date
2002-06-01 00:00:00pages
1497-503issue
6eissn
0938-7994issn
1432-1084journal_volume
12pub_type
杂志文章abstract:OBJECTIVES:To retrospectively assess the utility of semi-automated measurements by stratification of CT values of tumour size, CT value and doubling time (DT) using thin-section computed tomography (CT) images. The post-surgical outcomes of favourable and problematic tumours (more advanced p stage than IA, post-surgica...
journal_title:European radiology
pub_type: 杂志文章,多中心研究
doi:10.1007/s00330-011-2241-0
更新日期:2012-01-01 00:00:00
abstract::Coincidence of dorsal defect on a multipartite patella constitutes a rare cause of anterior knee pain in the first decades of life. Imaging findings of this uncommon symptomatic skeletal variant are discussed, with emphasis on MR features. ...
journal_title:European radiology
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pub_type: 临床试验,杂志文章
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journal_title:European radiology
pub_type: 临床试验,杂志文章,多中心研究
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pub_type: 杂志文章
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pub_type: 已发布勘误
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更新日期:2006-06-01 00:00:00
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pub_type: 杂志文章
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journal_title:European radiology
pub_type: 杂志文章,meta分析
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更新日期:2018-12-01 00:00:00
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journal_title:European radiology
pub_type: 杂志文章,评审
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journal_title:European radiology
pub_type: 杂志文章,评审
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更新日期:2021-01-07 00:00:00
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journal_title:European radiology
pub_type: 杂志文章
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更新日期:1996-01-01 00:00:00
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journal_title:European radiology
pub_type: 杂志文章,评审
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journal_title:European radiology
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pub_type: 杂志文章
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更新日期:2015-07-01 00:00:00
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