Cardiac Cycle is a Major Contributor to Variability in Size Measurements of Abdominal Aortic Aneurysms by Ultrasound

Vascular Laboratory and Imaging


The Cardiac Cycle is a Major Contributor to Variability in Size Measurements of Abdominal Aortic Aneurysms by Ultrasound


Grøndal N, Bramsen MB, Thomsen MD, et al (Viborg Hosp, Denmark) Eur J Vasc Endovasc Surg 43:30–33, 2012§



G.L. Moneta, MD



Evidence Ranking


• C



Expert Rating


• 1



Abstract



Aim


The objective of the study was to evaluate the impact of the cardiac cycle on ultrasound measurements of abdominal aortic aneurysm (AAA) diameters.



Methods


In total, 603 AAAs detected by screening were investigated with respect to the maximal systolic and diastolic anterior–posterior aortic diameters during the cardiac cycle using recorded ultrasound video sequences.



Results


On average, the systolic AAA diameter was 41.60 mm, and the diastolic AAA diameter was 39.63 mm with a paired mean difference at 1.94 mm (p < 0.0001). No association between aneurysmal size and difference in systolic and diastolic size was noted.


The mean difference and variability between two observers, one measured during peak-systole and the other measured during end-diastole, was 2.65 and 2.21 mm, respectively, as compared with 0.86 and 1.52 mm, respectively, when both were measured during the peak of systole. The intraobserver variability was 0.94 during systole, 1.18 during diastole and 1.94 mm when systole and diastole measurements were combined.

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Apr 1, 2017 | Posted by in CARDIOLOGY | Comments Off on Cardiac Cycle is a Major Contributor to Variability in Size Measurements of Abdominal Aortic Aneurysms by Ultrasound

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