scholarly journals Is ECG triggering for motion artefact reduction in dual-source CT angiography of the ascending aorta still required with high-pitch scanning? The role of ECG-gating in high-pitch dual-source CT of the ascending aorta

2016 ◽  
Vol 89 (1064) ◽  
pp. 20160174 ◽  
Author(s):  
Alice Wielandner ◽  
Dietrich Beitzke ◽  
Ruediger Schernthaner ◽  
Florian Wolf ◽  
Christina Langenberger ◽  
...  
Keyword(s):  
Ct Angiography ◽  
Ascending Aorta ◽  
Dual Source Ct ◽  
High Pitch ◽  
Ecg Gating ◽  
Motion Artefact ◽  
Dual Source ◽  
Artefact Reduction

High-pitch Dual-source CT Angiography before TAVI - the Value of ECG Gating

2019 ◽  
Vol 15 (4) ◽  
pp. 373-379
Author(s):  
Andreas Michael Bucher ◽  
Moritz Hans Albrecht ◽  
Jan Erik Scholtz ◽  
Eva Herrmann ◽  
Moritz Kaup ◽  
...  
Keyword(s):  
Image Quality ◽  
Aortic Valve ◽  
Ct Angiography ◽  
Aortic Annulus ◽  
Dual Source Ct ◽  
Single Source ◽  
High Pitch ◽  
Ecg Gating ◽  
Dual Source ◽  
Coronary Ostia

<P>Purpose: To investigate image quality, and radiation dose between ECG-gated singlesource and dual-source CT Angiography (CTA) protocols for planning of Trans-catheter Aortic Valve Implantation (TAVI) with a reference non ECG-gated single-source protocol. Methods: A total of 120 patients were included in four groups: Non ECG-gated single-source (SS), ECG-gated single-source (SSECG), ECG-gated dual-source high-pitch (DSECG), or non-ECG-gated dual-source high-pitch mode (DS). Qualitative image quality of the aortic annulus, aortic valve, and coronary ostia as well as presence of motion or stair-step artefacts of the thoracic aorta were independently assessed by two readers. Quantitative image quality was assessed to calculate contrast to noise ratio. Results: Subjective and objective scoring of motion artefacts was significantly reduced in SSECG, DSECG and DS (p= 0.010). The imaging length was comparable between groups. Aortic annulus, aortic valve, and coronary ostia were reliably evaluable in all patients with SSECG, DSECG and DS protocols. Conclusion: High-pitch, dual-source CT angiography of the whole aorta with or without ECG gating is a dose-efficient and time-saving examination strategy before TAVI. However acquisition timing within the cardiac cycle needs to be taken into account.</P>

Diagnostic performance and radiation dose of lower extremity CT angiography using a 128-slice dual source CT at 80 kVp and high pitch

2015 ◽  
Vol 57 (7) ◽  
pp. 822-828 ◽  
Author(s):  
Jin Woo Kim ◽  
Ki Seok Choo ◽  
Ung Bae Jeon ◽  
Tae Un Kim ◽  
Jae Yeon Hwang ◽  
...  
Keyword(s):  
Radiation Dose ◽  
Lower Extremity ◽  
Ct Angiography ◽  
Diagnostic Performance ◽  
Dual Source Ct ◽  
High Pitch ◽  
Dual Source

High-pitch coronary CT angiography in dual-source CT during free breathing vs. breath holding in patients with low heart rates

2013 ◽  
Vol 82 (12) ◽  
pp. 2217-2221 ◽  
Author(s):  
Bernhard Bischoff ◽  
Felix G. Meinel ◽  
Alessandra Del Prete ◽  
Maximilian F. Reiser ◽  
Hans-Christoph Becker
Keyword(s):  
Ct Angiography ◽  
Coronary Ct Angiography ◽  
Free Breathing ◽  
Breath Holding ◽  
Dual Source Ct ◽  
High Pitch ◽  
Heart Rates ◽  
Coronary Ct ◽  
Dual Source

scholarly journals Image Quality and Radiation Dose of Lower Extremity CT Angiography in 128 Slice Dual-Source CT: Comparison of High Pitch and Low Pitch

2014 ◽  
Vol 71 (3) ◽  
pp. 120 ◽  
Author(s):  
Jung Hwan Park ◽  
Ki Seok Choo ◽  
Ung Bae Jeon ◽  
Seung Kug Baik ◽  
Yong Woo Kim ◽  
...  
Keyword(s):  
Image Quality ◽  
Radiation Dose ◽  
Lower Extremity ◽  
Ct Angiography ◽  
Dual Source Ct ◽  
High Pitch ◽  
Dual Source

scholarly journals Performance of turbo high-pitch dual-source CT for coronary CT angiography: first ex vivo and patient experience

2014 ◽  
Vol 24 (8) ◽  
pp. 1889-1895 ◽  
Author(s):  
Fabian Morsbach ◽  
Sonja Gordic ◽  
Lotus Desbiolles ◽  
Daniela Husarik ◽  
Thomas Frauenfelder ◽  
...  
Keyword(s):  
Ct Angiography ◽  
Patient Experience ◽  
Coronary Ct Angiography ◽  
Ex Vivo ◽  
Dual Source Ct ◽  
High Pitch ◽  
Coronary Ct ◽  
Dual Source
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