CT Imaging Before Transcatheter Aortic Valve Implantation (TAVI) Using Variable Helical Pitch Scanning and Its Diagnostic Performance for Coronary Artery Disease

Overview

Journal Eur Radiol

Specialty Radiology

Date 2016 Aug 27

PMID 27562479

Citations 25

Authors

Shunsuke Matsumoto

Yoshitake Yamada

Masahiro Hashimoto

Teppei Okamura

Minoru Yamada

Fumiaki Yashima

Kentaro Hayashida

Keiichi Fukuda

Masahiro Jinzaki

Affiliations

Soon will be listed here.

Abstract

Objectives: To evaluate the effectiveness of CT before TAVI using variable helical pitch (VHP) scanning and its diagnostic performance for coronary artery disease (CAD).

Methods: Sixty patients (84.4 ± 4.6 years) scheduled for TAVI underwent CT using VHP scanning with the contrast material (CM) volume calculated as scanning time × weight [kg] × 0.06 mL. Retrospective electrocardiography (ECG)-gated scanning was utilized to examine the thorax, and non-ECG-gated scanning of the abdomen immediately followed. We analyzed CT attenuation values of the coronary arteries, aorta, iliac and femoral arteries. The coronary CT angiography images were evaluated for the presence of stenosis (≥50 %); invasive coronary angiography served as a reference standard.

Results: The average attenuations of all of the arteries were greater than 400 HU. We could evaluate the peripheral access vessels and dimensions of the ascending aorta, aortic root, and aortic annulus in all patients. The average volume of CM was 38.7 ± 8.5 mL. On per-patient and vessel analysis, CT showed 91.7 % and 89.5 % sensitivity, and 91.3 % and 97.4 % negative predictive value (NPV).

Conclusions: CT using VHP scanning with an average CM volume of 38.7 mL is useful before TAVI and had a high sensitivity and NPV in excluding obstructive CAD.

Key Points: • TAVI-planning CT using variable helical pitch (VHP) scanning is useful. • The average volume of contrast material was 38.7 ± 8.5 mL. • The average attenuations of all the arteries were >400 HU. • This CT had a high sensitivity and NPV for excluding obstructive CAD.

Citing Articles

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Coronary CTA and CT-FFR in trans-catheter aortic valve implantation candidates: a systematic review and meta-analysis.

Becker L, Peper J, van Ginkel D, Overduin D, van Es H, Rensing B Eur Radiol. 2024; 35(3):1552-1569.

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Saudi Heart Association/National Heart Center/Saudi Arabian Cardiac Interventional Society/Saudi Society for Cardiac Surgeons/Saudi Cardiac Imaging Group 2023 TAVI Guidelines.

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Combined Computed Coronary Tomography Angiography and Transcatheter Aortic Valve Implantation (TAVI) Planning Computed Tomography Reliably Detects Relevant Coronary Artery Disease Pre-TAVI.

Felbel D, Buck C, Riedel N, Paukovitsch M, Stephan T, Krohn-Grimberghe M J Clin Med. 2024; 13(16).

PMID: 39201030 PMC: 11355140. DOI: 10.3390/jcm13164885.

Unravelling the Fate of Coronary Artery Disease in Patients Undergoing Valve Replacement for Severe Aortic Valve Stenosis.

Minten L, Bennett J, McCutcheon K, Dubois C Rev Cardiovasc Med. 2024; 24(3):68.

PMID: 39077476 PMC: 11263999. DOI: 10.31083/j.rcm2403068.

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