Bildqualität von CT-Angiografien der Koronararterien in Abhängigkeit vom Ausmaß der Koronarverkalkungen bei Einsatz eines Dual-Source-CTs

Artmann, A.; Enayati, S.; Ratzenböck, M.; Schwarz, Marc; Weber, T.; Eber, B

doi:10.1055/s-0028-1109489

Cited by 4 publications

(1 citation statement)

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“…Neben dem Gesamtkalziumscore muss natürlich die Verteilung der Koronarverkalkungen berücksichtigt werden (bei diffuser Verteilung sind die Kalk-Bloomingartefakte geringer als bei einzelnen umschriebenen groben Verkalkungen). Bei über den angegebenen Richtwerten liegendem Kalziumscore muss individuell entschieden werden, ob die CTA noch sinnvoll ist, da neben der Möglichkeit einer eingeschränkten Beurteilbarkeit auch die Wahrscheinlichkeit einer hämodynamisch wirksamen Stenose höher ist [34].…”

Section: Intolerance T O S T a N D A Rd H E A R T F A I L U Re T H E unclassified

Aktueller Stellenwert der MSCTA in der Koronargefäßdiagnostik (2011): Klinischer Leitfaden der Österreichischen Gesellschaften für Kardiologie und Radiologie

Hergan

Globits²,

Loewe³

et al. 2011

Fortschr Röntgenstr

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Section: Intolerance T O S T a N D A Rd H E A R T F A I L U Re T H E unclassified

Aktueller Stellenwert der MSCTA in der Koronargefäßdiagnostik (2011): Klinischer Leitfaden der Österreichischen Gesellschaften für Kardiologie und Radiologie

Hergan

Globits²,

Loewe³

et al. 2011

Fortschr Röntgenstr

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Impact of PVCs noted during coronary calcium scan on image quality and accuracy in subsequent coronary dual-source CT angiography

Eicher

Kau

Niedermayer

et al. 2010

Int J Cardiovasc Imaging

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The purpose of this study was to investigate the impact of the presence of one or more premature ventricular contractions (PVCs) during coronary calcium score scan (CS) on image quality and accuracy of subsequent dual-source coronary CT angiography (DS CCTA). Fifty-three out of 502 patients showed one or more PVCs during CS and built the study group. Sixty consecutively registered patients with sinus rhythm formed the control group. Two independent, blinded readers classified 1,723 coronary artery segments as being of diagnostic or non-diagnostic image quality. All segments with diagnostic image quality were assessed for the presence for significant coronary artery stenosis. Accuracy was calculated using conventional angiography as standard of reference. The percentage of DS CCTA data sets with diagnostic image quality was significantly lower in the study group (79.2%) compared to the control group (90.6%, P < 0.05). The rate of coronary segment with diagnostic image quality was highly significant lower in the study group (89.5%; n = 723/808) compared to the control group (99.4%; n = 908/915; P < 0.001). However, accuracy did not differ in both groups. Significant correlation between non-diagnostic image quality and mean HR was only found in the study group (P = 0.019). The presence of one or more PVCs during CS does not affect accuracy but impairs image quality of subsequent DS CCTA. Mean HR is a predictor of non-diagnostic data sets only in the study group, suggesting more aggressive HR control could be beneficial.

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Coronary Artery Calcium Score: Influence of the Reconstruction Interval on Cardiac Risk Stratification in Asymptomatic Patients using Dual-Source Computed Tomography

Jensen¹,

Jochims²,

Eberle³

et al. 2010

Fortschr Röntgenstr

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Despite the increased temporal resolution of DSCT examinations, the Agatston and volumetric scores depend on the reconstruction time within the cardiac cycle. The fact that the greatest relative variability for both the Agatston score and the volumetric score was found in young patients with small amounts of coronary calcium may result in different treatment strategies for young patients depending on the reconstruction used. Therefore, more accurate risk stratification may require the analysis of multiple reconstruction intervals.

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Bildqualität von CT-Angiografien der Koronararterien in Abhängigkeit vom Ausmaß der Koronarverkalkungen bei Einsatz eines Dual-Source-CTs

Abstract: CTA of coronary arteries performed with dual source CT in spiral mode provides good image quality even in patients with higher calcification scores. The reduction of heart rates > 75 bpm improves the image quality significantly in patients with higher calcification scores.

Cited by 4 publications

References 0 publications

Aktueller Stellenwert der MSCTA in der Koronargefäßdiagnostik (2011): Klinischer Leitfaden der Österreichischen Gesellschaften für Kardiologie und Radiologie

Aktueller Stellenwert der MSCTA in der Koronargefäßdiagnostik (2011): Klinischer Leitfaden der Österreichischen Gesellschaften für Kardiologie und Radiologie

Impact of PVCs noted during coronary calcium scan on image quality and accuracy in subsequent coronary dual-source CT angiography

Coronary Artery Calcium Score: Influence of the Reconstruction Interval on Cardiac Risk Stratification in Asymptomatic Patients using Dual-Source Computed Tomography

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