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High-pitch dual-source CT angiography of the whole aorta without ECG synchronisation: initial experience.

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Title: High-pitch dual-source CT angiography of the whole aorta without ECG synchronisation: initial experience.
Authors: Beeres M (AUTHOR), Schell B (AUTHOR), Mastragelopoulos A (AUTHOR), Herrmann E (AUTHOR), Kerl JM (AUTHOR), Gruber-Rouh T (AUTHOR), Lee C (AUTHOR), Siebenhandl P (AUTHOR), Bodelle B (AUTHOR), Zangos S (AUTHOR), Vogl TJ (AUTHOR), Jacobi V (AUTHOR), Bauer RW (AUTHOR), Beeres, Martin1 (AUTHOR), Schell, Boris (AUTHOR), Mastragelopoulos, Aristidis (AUTHOR), Herrmann, Eva (AUTHOR), Kerl, Josef Matthias (AUTHOR), Gruber-Rouh, Tatjana (AUTHOR), Lee, Clara (AUTHOR)
Source: European Radiology. Jan2012, Vol. 22 Issue 1, p129-137. 9p.
Abstract: Objective: To investigate the feasibility, image quality and radiation dose for high-pitch dual-source CT angiography (CTA) of the whole aorta without ECG synchronisation.Methods: Each group of 40 patients underwent CTA either on a 16-slice (group 1) or dual-source CT device with conventional single-source (group 2) or high-pitch mode with a pitch of 3.0 (group 3). The presence of motion or stair-step artefacts of the thoracic aorta was independently assessed by two readers.Results: Subjective and objective scoring of motion and artefacts were significantly reduced in the high-pitch examination protocol (p < 0.05). The imaging length was not significantly different, but the imaging time was significantly (p < 0.001) shorter in the high-pitch group (12.2 vs. 7.4 vs. 1.7 s for groups 1, 2 and 3). The ascending aorta and the coronary ostia were reliably evaluable in all patients of group 3 without motion artefacts as well.Conclusion: High-pitch dual-source CT angiography of the whole aorta is feasible in unselected patients. As a significant advantage over regular pitch protocols, motion-free imaging of the aorta is possible without ECG synchronisation. Thus, this CT mode bears potential to become a standard CT protocol before trans-catheter aortic valve implantation (TAVI). [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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  Data: High-pitch dual-source CT angiography of the whole aorta without ECG synchronisation: initial experience.
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  Data: &lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Beeres+M%22&quot;&gt;Beeres M&lt;/searchLink&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Schell+B%22&quot;&gt;Schell B&lt;/searchLink&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Mastragelopoulos+A%22&quot;&gt;Mastragelopoulos A&lt;/searchLink&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Herrmann+E%22&quot;&gt;Herrmann E&lt;/searchLink&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Kerl+JM%22&quot;&gt;Kerl JM&lt;/searchLink&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Gruber-Rouh+T%22&quot;&gt;Gruber-Rouh T&lt;/searchLink&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Lee+C%22&quot;&gt;Lee C&lt;/searchLink&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Siebenhandl+P%22&quot;&gt;Siebenhandl P&lt;/searchLink&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Bodelle+B%22&quot;&gt;Bodelle B&lt;/searchLink&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Zangos+S%22&quot;&gt;Zangos S&lt;/searchLink&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Vogl+TJ%22&quot;&gt;Vogl TJ&lt;/searchLink&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Jacobi+V%22&quot;&gt;Jacobi V&lt;/searchLink&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Bauer+RW%22&quot;&gt;Bauer RW&lt;/searchLink&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Beeres%2C+Martin%22&quot;&gt;Beeres, Martin&lt;/searchLink&gt;&lt;relatesTo&gt;1&lt;/relatesTo&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Schell%2C+Boris%22&quot;&gt;Schell, Boris&lt;/searchLink&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Mastragelopoulos%2C+Aristidis%22&quot;&gt;Mastragelopoulos, Aristidis&lt;/searchLink&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Herrmann%2C+Eva%22&quot;&gt;Herrmann, Eva&lt;/searchLink&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Kerl%2C+Josef+Matthias%22&quot;&gt;Kerl, Josef Matthias&lt;/searchLink&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Gruber-Rouh%2C+Tatjana%22&quot;&gt;Gruber-Rouh, Tatjana&lt;/searchLink&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Lee%2C+Clara%22&quot;&gt;Lee, Clara&lt;/searchLink&gt; (AUTHOR)
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  Data: &lt;searchLink fieldCode=&quot;JN&quot; term=&quot;%22European+Radiology%22&quot;&gt;European Radiology&lt;/searchLink&gt;. Jan2012, Vol. 22 Issue 1, p129-137. 9p.
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  Data: &lt;bold&gt;Objective: &lt;/bold&gt;To investigate the feasibility, image quality and radiation dose for high-pitch dual-source CT angiography (CTA) of the whole aorta without ECG synchronisation.&lt;bold&gt;Methods: &lt;/bold&gt;Each group of 40 patients underwent CTA either on a 16-slice (group 1) or dual-source CT device with conventional single-source (group 2) or high-pitch mode with a pitch of 3.0 (group 3). The presence of motion or stair-step artefacts of the thoracic aorta was independently assessed by two readers.&lt;bold&gt;Results: &lt;/bold&gt;Subjective and objective scoring of motion and artefacts were significantly reduced in the high-pitch examination protocol (p &lt; 0.05). The imaging length was not significantly different, but the imaging time was significantly (p &lt; 0.001) shorter in the high-pitch group (12.2 vs. 7.4 vs. 1.7 s for groups 1, 2 and 3). The ascending aorta and the coronary ostia were reliably evaluable in all patients of group 3 without motion artefacts as well.&lt;bold&gt;Conclusion: &lt;/bold&gt;High-pitch dual-source CT angiography of the whole aorta is feasible in unselected patients. As a significant advantage over regular pitch protocols, motion-free imaging of the aorta is possible without ECG synchronisation. Thus, this CT mode bears potential to become a standard CT protocol before trans-catheter aortic valve implantation (TAVI). [ABSTRACT FROM AUTHOR]
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  Data: &lt;i&gt;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&#39;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.&lt;/i&gt; (Copyright applies to all Abstracts.)
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