J 2015

MDCT evaluation of aortic root and aortic valve prior to TAVI. What is the optimal imaging time point in the cardiac cycle?

JURENCAK, Tomas; Jakub TUREK; Bastiaan L.J.H. KIETSELAER; Casper MIHL; Madeleine KOK et al.

Základní údaje

Originální název

MDCT evaluation of aortic root and aortic valve prior to TAVI. What is the optimal imaging time point in the cardiac cycle?

Autoři

JURENCAK, Tomas; Jakub TUREK; Bastiaan L.J.H. KIETSELAER; Casper MIHL; Madeleine KOK; Vincenc G.V.A. van OMMEN; Leen A.F.M. van GARSSE; Estelle C. NIJSSEN; Joachim E. WILDBERGER a Marco DAS

Vydání

European Radiology, New York, Springer, 2015, 0938-7994

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

30000 3. Medical and Health Sciences

Stát vydavatele

Spojené státy

Utajení

není předmětem státního či obchodního tajemství

Impakt faktor

Impact factor: 3.640

Označené pro přenos do RIV

Ano

Kód RIV

RIV/00216224:14110/15:00085179

Organizační jednotka

Lékařská fakulta

EID Scopus

Klíčová slova anglicky

Aortic valve; Aortic valve stenosis; Multidetector computed tomography; Cardiac gated imaging technique; Heart valve prosthesis implantation

Štítky

Příznaky

Mezinárodní význam, Recenzováno
Změněno: 20. 1. 2016 15:37, Ing. Mgr. Věra Pospíšilíková

Anotace

V originále

To determine the optimal imaging time point for transcatheter aortic valve implantation (TAVI) therapy planning by comprehensive evaluation of the aortic root. Multidetector-row CT (MDCT) examination with retrospective ECG gating was retrospectively performed in 64 consecutive patients referred for pre-TAVI assessment. Eighteen different parameters of the aortic root were evaluated at 11 different time points in the cardiac cycle. Time points at which maximal (or minimal) sizes were determined, and dimension differences to other time points were evaluated. Theoretical prosthesis sizing based on different measurements was compared. Largest dimensions were found between 10 and 20 % of the cardiac cycle for annular short diameter (10 %); mean diameter (10 %); effective diameter and circumference-derived diameter (20 %); distance from the annulus to right coronary artery ostium (10 %); aortic root at the left coronary artery level (20 %); aortic root at the widest portion of coronary sinuses (20 %); and right leaflet length (20 %). Prosthesis size selection differed depending on the chosen measurements in 25-75 % of cases. Significant changes in anatomical structures of the aortic root during the cardiac cycle are crucial for TAVI planning. Imaging in systole is mandatory to obtain maximal dimensions. aEuro cent Most aortic root structures undergo significant dimensional changes throughout the cardiac cycle. aEuro cent The largest dimensions of aortic parameters should be determined to optimize TAVI. aEuro cent Circumference-derived diameter showed maximum dimension at 20 % of the cardiac cycle.