Abstract
Coronary artery disease (CAD) begins with asymptomatic atherosclerotic changes in the vessel wall. Gradual or abrupt progression of some of these early lesions eventually leads to symptomatic luminal narrowing. Coronary computed tomography angiography (CTA) allows for a minimally invasive assessment of these wall changes and of the severity of luminal narrowing, and is thus an attractive method for assessing progression/regression. However, because of the associated radiation exposure and concern about false-positive findings, CTA is not recommended as a clinical screening test. Owing to the significantly lower spatial resolution compared with invasive modalities, its application as a tool for clinical progression/regression trials is limited. Therefore, while there are extensive data from both CT coronary artery calcium scoring and CTA studies demonstrating the prognostic value of luminal stenosis as well as the extent and characteristics of plaque, data describing progression/regression are limited.
Zusammenfassung
Eine koronare Herzerkrankung beginnt mit asymptomatischen Ablagerungen in der Gefäßwand. Die graduelle oder plötzliche Progression dieser Läsionen führt schließlich zu symptomatischer Verengung des Gefäßlumens. Die koronare computertomographische Angiographie (CTA) erlaubt die minimalinvasive Untersuchung dieser Ablagerungen und Engstellen und ist theoretisch ein attraktives Verfahren für die Untersuchung der Progression/Regression. Wegen der Strahlenbelastung wird die CTA allerdings nicht als Screeninguntersuchung empfohlen, und die geringere räumliche Auflösung limitiert die Anwendung in klinischen Progressions-Regressions-Studien. Aus diesen Gründen gibt es zwar viel Erfahrung mit der koronaren CT-Untersuchung des „Kalziumscores“ (CAC) und der CTA in Bezug auf den prognostischen Wert von Engstellen sowie dem Ausmaß und den Kennzeichen von Plaque, aber es bestehen nur begrenzt Daten zur Progression/Regression.
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P. Schoenhagen and F. Yan state that there are no conflicts of interest. The accompanying manuscript does not include studies on humans or animals.
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Schoenhagen, P., Yan, F. Progression of coronary artery disease. Herz 40, 869–874 (2015). https://doi.org/10.1007/s00059-015-4344-x
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DOI: https://doi.org/10.1007/s00059-015-4344-x