Role of Multislice Computed Tomography in Transcatheter Aortic Valve Replacement

Wood, David; Tops, Laurens F.; Mayo, John R.; Pasupati, Sanjeevan; Schalij, Martin J.; Humphries, Karin H.; Lee, May; Ali, Abdullah Al; Munt, Brad; Moss, R.; Thompson, Christopher R.; Bax, Jeroen J.; Webb, John G.

doi:10.1016/j.amjcard.2009.01.034

Cited by 162 publications

(97 citation statements)

References 18 publications

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“…A virtual ring passing the three nadirs of the insertion of the aortic valve leaflets can be drawn. We agree with the investigators [4][5][6][7][8] who described this virtual ring itself is the aortic annulus. In this paper, we use the term 'aortic annulus' as the virtual ring.…”

Section: Discussionsupporting

confidence: 28%

“…Smid M et al 21) had described that magnetic resonance imaging had been found to be a most precise technique to measure the aortic valve annulus diameter. Others 6,12,14,19,20) describe the other view from MDCT as useful to measure the diameter. And they reported that the annulus diameter measured on the coronal view was larger than that on the sagittal view because of its elliptical shape.…”

Section: Discussionmentioning

confidence: 99%

“…5,6,[13][14][15][16][17][18][19] Severe calcification, 9,13,14) three dimension structure of the aortic annulus, 9,13) and so on has been proposed concerning the reason why the echocardiography underestimated the aortic annulus diameter. Recently, the elliptical shape of the aortic annulus [4][5][6]13,[15][16][17]19,20) or left ventricular outflow tract has been pointed out, and it may be one of the reasons for the underestimation of the aortic annulus by TTE, however, there may be others. Schultz CJ 4) or Tzikas A 19) advocated that the measured distance using echocardiography might decline to the true diameter.…”

Section: Discussionmentioning

confidence: 99%

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Aortic Annulus Diameter Measurement: What Is the Best Modality?

Yano

Nakamura

Nagahama

et al. 2012

ATCS

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Purpose: The purpose of this study was to clarify the most suitable method to measure the aortic annulus diameter. Patients and Methods: Fifty-five patients, who had undergone aortic valve replacement at Miyazaki University Hospital between April 2008 and May 2011, were included in this study. The maximum diameter of the sizing tool that could be inserted into the left ventricle through the annulus had been predicted, based on the diameter measured by each modality. Agreement with surgery and each imaging modality, namely transthoracic echocardiography, multidetector computed tomography and contrast angiography, were compared using Bland-Altman analysis. Results: The predicted aortic annulus diameter, based on the diameter measured by transthoracic echocardiography, multidetector computed tomography and contrast angiography, was 20.3 ± 2.50, 23.9 ± 3.19, and 23.5 ± 3.55 mm, respectively, whereas, the diameter measured at surgery was 23.7 ± 2.99 mm. Predicted aortic annulus diameter measured by multidetector computed tomography best agreed with that measured at surgery. Conclusion: We conclude that the aortic annulus diameter, measured by multidetector computed tomography, is the best modality to measure the aortic annulus diameter.

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Section: Discussionsupporting

confidence: 28%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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Aortic Annulus Diameter Measurement: What Is the Best Modality?

Yano

Nakamura

Nagahama

et al. 2012

ATCS

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“…[20][21][22][23][24] Dimension changes have been reported by animal studies; [17][18][19] however, results from human studies have been inconsistent. Although a few studies have not observed significant changes in systolic and diastolic dimensions, 20,21 a recent study reported significant changes to the aortic annulus during the cardiac cycle.…”

Section: Discussionmentioning

confidence: 99%

Comparison of Aortic Annulus Dimension After Aortic Valve Neocuspidization With Valve Replacement and Normal Valve

Yamamoto

Iino

Shintani

et al. 2017

Seminars in Thoracic and Cardiovascular Surgery

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“…(Kapadia Sr et al,. 2009;Wood D et al,. 2009) Atriventricular block: Atrioventricular block and need for pacemaker implantation has shown to be related to a low positioning of the valve that leads to His bundle conduction system injury.…”

Section: Trends Inmentioning

confidence: 99%