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
UT WoS
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.