Body physique and heart rate variability determine the occurrence of stair-step artefacts in 64-slice CT coronary angiography with prospective ECG-triggering.
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| Title: | Body physique and heart rate variability determine the occurrence of stair-step artefacts in 64-slice CT coronary angiography with prospective ECG-triggering. |
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| Authors: | Husmann L (AUTHOR), Herzog BA (AUTHOR), Burkhard N (AUTHOR), Tatsugami F (AUTHOR), Valenta I (AUTHOR), Gaemperli O (AUTHOR), Wyss CA (AUTHOR), Landmesser U (AUTHOR), Kaufmann PA (AUTHOR), Husmann, Lars1 (AUTHOR), Herzog, Bernhard A (AUTHOR), Burkhard, Nina (AUTHOR), Tatsugami, Fuminari (AUTHOR), Valenta, Ines (AUTHOR), Gaemperli, Oliver (AUTHOR), Wyss, Christophe A (AUTHOR), Landmesser, Ulf (AUTHOR), Kaufmann, Philipp A (AUTHOR) |
| Source: | European Radiology. Jul2009, Vol. 19 Issue 7, p1698-1703. 6p. |
| Abstract: | The purpose of this study was to describe and characterize the frequency and extent of stair-step artefacts in computed tomography coronary angiography (CTCA) with prospective electrocardiogram (ECG)-triggering and to identify their determinants. One hundred and forty three consecutive patients (55 women, mean age 57 +/- 13 years) underwent 64-slice CTCA using prospective ECG-triggering. Occurrence of stair-step artefacts in CTCA of the thoracic wall and the coronary arteries was determined and maximum offset was measured. If stair-step artefacts occurred in both cases, a difference between thoracic wall and coronary artery offset of 0.6 mm or greater was attributed to additional motion of the heart. Mean effective radiation dose was 2.1 +/- 0.7 mSv (range 1.0-3.5 mSv). Eighty-nine patients (62%) had stair-step artefacts in CTCA of the coronary arteries (mean offset of 1.7 +/- 1.1 mm), while only 77 patients had thoracic wall stair-step artefacts (mean offset of 1.0 +/- 0.3 mm; significantly different, P < 0.001). Stair-step artefacts in CTCA of the thoracic wall were determined by BMI and weight (P < 0.01), while artefacts in CTCA of the coronary arteries were associated with heart rate variability (P < 0.05). Stair-step artefacts in CTCA with prospective ECG-triggering are determined by (a) motion of the entire patient during table travel, particularly in large patients and (b) by motion of the heart, particularly when heart rates are variable. [ABSTRACT FROM AUTHOR] |
| Copyright of European Radiology is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
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| Header | DbId: egs DbLabel: Engineering Source An: 105349673 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Body physique and heart rate variability determine the occurrence of stair-step artefacts in 64-slice CT coronary angiography with prospective ECG-triggering. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Husmann+L%22">Husmann L</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Herzog+BA%22">Herzog BA</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Burkhard+N%22">Burkhard N</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Tatsugami+F%22">Tatsugami F</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Valenta+I%22">Valenta I</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Gaemperli+O%22">Gaemperli O</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Wyss+CA%22">Wyss CA</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Landmesser+U%22">Landmesser U</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Kaufmann+PA%22">Kaufmann PA</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Husmann%2C+Lars%22">Husmann, Lars</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Herzog%2C+Bernhard+A%22">Herzog, Bernhard A</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Burkhard%2C+Nina%22">Burkhard, Nina</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Tatsugami%2C+Fuminari%22">Tatsugami, Fuminari</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Valenta%2C+Ines%22">Valenta, Ines</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Gaemperli%2C+Oliver%22">Gaemperli, Oliver</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Wyss%2C+Christophe+A%22">Wyss, Christophe A</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Landmesser%2C+Ulf%22">Landmesser, Ulf</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Kaufmann%2C+Philipp+A%22">Kaufmann, Philipp A</searchLink> (AUTHOR) – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22European+Radiology%22">European Radiology</searchLink>. Jul2009, Vol. 19 Issue 7, p1698-1703. 6p. – Name: Abstract Label: Abstract Group: Ab Data: The purpose of this study was to describe and characterize the frequency and extent of stair-step artefacts in computed tomography coronary angiography (CTCA) with prospective electrocardiogram (ECG)-triggering and to identify their determinants. One hundred and forty three consecutive patients (55 women, mean age 57 +/- 13 years) underwent 64-slice CTCA using prospective ECG-triggering. Occurrence of stair-step artefacts in CTCA of the thoracic wall and the coronary arteries was determined and maximum offset was measured. If stair-step artefacts occurred in both cases, a difference between thoracic wall and coronary artery offset of 0.6 mm or greater was attributed to additional motion of the heart. Mean effective radiation dose was 2.1 +/- 0.7 mSv (range 1.0-3.5 mSv). Eighty-nine patients (62%) had stair-step artefacts in CTCA of the coronary arteries (mean offset of 1.7 +/- 1.1 mm), while only 77 patients had thoracic wall stair-step artefacts (mean offset of 1.0 +/- 0.3 mm; significantly different, P < 0.001). Stair-step artefacts in CTCA of the thoracic wall were determined by BMI and weight (P < 0.01), while artefacts in CTCA of the coronary arteries were associated with heart rate variability (P < 0.05). Stair-step artefacts in CTCA with prospective ECG-triggering are determined by (a) motion of the entire patient during table travel, particularly in large patients and (b) by motion of the heart, particularly when heart rates are variable. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of European Radiology is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1007/s00330-009-1339-0 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 6 StartPage: 1698 Titles: – TitleFull: Body physique and heart rate variability determine the occurrence of stair-step artefacts in 64-slice CT coronary angiography with prospective ECG-triggering. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Husmann L – PersonEntity: Name: NameFull: Herzog BA – PersonEntity: Name: NameFull: Burkhard N – PersonEntity: Name: NameFull: Tatsugami F – PersonEntity: Name: NameFull: Valenta I – PersonEntity: Name: NameFull: Gaemperli O – PersonEntity: Name: NameFull: Wyss CA – PersonEntity: Name: NameFull: Landmesser U – PersonEntity: Name: NameFull: Kaufmann PA – PersonEntity: Name: NameFull: Husmann, Lars – PersonEntity: Name: NameFull: Herzog, Bernhard A – PersonEntity: Name: NameFull: Burkhard, Nina – PersonEntity: Name: NameFull: Tatsugami, Fuminari – PersonEntity: Name: NameFull: Valenta, Ines – PersonEntity: Name: NameFull: Gaemperli, Oliver – PersonEntity: Name: NameFull: Wyss, Christophe A – PersonEntity: Name: NameFull: Landmesser, Ulf – PersonEntity: Name: NameFull: Kaufmann, Philipp A IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 07 Text: Jul2009 Type: published Y: 2009 Identifiers: – Type: issn-print Value: 09387994 Numbering: – Type: volume Value: 19 – Type: issue Value: 7 Titles: – TitleFull: European Radiology Type: main |
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