2018
Quantitative 3D Analysis of Coronary Wall Morphology in Heart Transplant Patients: OCT-Assessed Cardiac Allograft Vasculopathy Progression
CHEN, Zhi, Michal PAZDERNIK, Honghai ZHANG, Andreas WAHLE, Zhihui GUO et. al.Základní údaje
Originální název
Quantitative 3D Analysis of Coronary Wall Morphology in Heart Transplant Patients: OCT-Assessed Cardiac Allograft Vasculopathy Progression
Autoři
CHEN, Zhi (840 Spojené státy), Michal PAZDERNIK (840 Spojené státy), Honghai ZHANG (840 Spojené státy), Andreas WAHLE (840 Spojené státy), Zhihui GUO (840 Spojené státy), Helena BEDÁŇOVÁ (203 Česká republika, domácí), Josef KAUTZNER (203 Česká republika), Vojtech MELENOVSKY (203 Česká republika), Tomas KOVARNIK (203 Česká republika) a Milan SONKA (840 Spojené státy, garant)
Vydání
Medical Image Analysis, AMSTERDAM, ELSEVIER SCIENCE BV, 2018, 1361-8415
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
30224 Radiology, nuclear medicine and medical imaging
Stát vydavatele
Nizozemské království
Utajení
není předmětem státního či obchodního tajemství
Impakt faktor
Impact factor: 8.880
Kód RIV
RIV/00216224:14110/18:00105793
Organizační jednotka
Lékařská fakulta
UT WoS
000449896900007
Klíčová slova anglicky
Cardiac allograft vasculopathy (CAV); optical coherence tomography (OCT); LOGISMOS; CAV progression; CAV prediction
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 10. 2. 2019 18:25, Soňa Böhmová
Anotace
V originále
Cardiac allograft vasculopathy (CAV) accounts for about 30% of all heart-transplant (HTx) patient deaths. For patients at high risk for CAV complications after HTx, therapy must be initiated early to be effective. Therefore, new phenotyping approaches are needed to identify such HTx patients at the earliest possible time. Coronary optical coherence tomography (OCT) images were acquired from 50 HTx patients 1 and 12 months after HTx. Quantitative analysis of coronary wall morphology used LOGISMOS segmentation strategy to simultaneously identify three wall-layer surfaces for the entire pullback length in 3D: luminal, outer intimal, and outer medial surfaces. To quantify changes of coronary wall morphology between 1 and 12 months after HTx, the two pullbacks were mutually co-registered. Validation of layer thickness measurements showed high accuracy of performed layer analyses with layer thickness measures correlating well with manually-defined independent standard (R-automated(2) = 0.93, y = 1.0x - 6.2 mu m), average intimal+medial thickness errors were 4.98 +/- 31.24 mu m, comparable with inter-observer variability. Quantitative indices of coronary wall morphology 1 month and 12 months after HTx showed significant local as well as regional changes associated with CAV progression. Some of the newly available fully-3D baseline indices (intimal layer brightness, medial layer brightness, medial thickness, and intimal+medial thickness) were associated with CAV-related progression of intimal thickness showing promise of identifying patients subjected to rapid intimal thickening at 12 months after FITx from OCTimage data obtained just 1 month after HTx. Our approach allows quantification of location-specific alterations of coronary wall morphology over time and is sensitive even to very small changes of wall layer thicknesses that occur in patients following heart transplant.