Why the study?
The study aimed to compare left ventricular strain and twist parameters measured by speckle tracking echocardiography between Philips scanners with different software.
Does speckle tracking echocardiography using Philips Affiniti 70 yield comparable left ventricular strain and twist parameters to Philips iE33 in patients with acute coronary syndrome?
Does speckle tracking echocardiography using Philips Affiniti 70 yield comparable left ventricular strain and twist parameters to Philips iE33 in patients with acute coronary syndrome?
There is significant variability in speckle tracking echocardiography measurements, particularly circumferential strain, between different ultrasound scanner models and software versions from the same manufacturer.
Different Philips STE software versions may yield non-interchangeable strain values in ACS; leaves open standardization for clinical tracking and trials.
CĂl: CĂlem tĂŠto studie bylo porovnat parametry napÄtĂ a zkroucenĂ stÄny levĂŠ komory mÄĹenĂŠ metodou speckle tracking echocardiography (STE) se skenery firmy Philips s rĹŻznĂ˝m softwarem. MateriĂĄl a metody: V odstupu 30 minut bylo za stejnĂ˝ch podmĂnek vyĹĄetĹeno 36 pacientĹŻ s akutnĂm koronĂĄrnĂm syndromem (AKS; nestabilnĂ angina pectoris a infarkt myokardu) ultrazvukovĂ˝mi skenery Philips iE33 (Q-lab, verze 7.1, 2009) a Affiniti 70 (aCMQ, 2019). SkenovĂĄnĂ a mÄĹenĂ primĂĄrnĂch parametrĹŻ se provĂĄdÄlo ve stejnĂ˝ch apikĂĄlnĂch Ĺezech a v Ĺezech v krĂĄtkĂŠ ose levĂŠ komory srdeÄnĂ (LK). MÄĹenĂ˝mi parametry byly longitudinĂĄlnĂ napÄtĂ (longitudinal strain, LS), obvodovĂŠ napÄtĂ (circumferential strain, CS), rotace a zkroucenĂ LK. OpakovanĂĄ shoda vĂ˝sledkĹŻ byla hodnocena metodou podle Blanda-Altmana. VĂ˝sledky: NejvÄtĹĄĂ pozitivnĂ vztah LS byl nalezen v bazĂĄlnĂm segmentu spodnĂ stÄny LK (r = 0,79; p < 0,001). U pacientĹŻ bez abnormĂĄlnĂ kinetiky stÄn (wall motion abnormalities, WMA) LK pĹi mÄĹenĂ skenerem Affiniti 70 byly hodnoty podstatnÄ niŞťà neĹž hodnoty deformace namÄĹenĂŠ pĹĂstrojem Philips (-9,1 [-12,5 aĹž -8,0] pro pĹednĂ stÄnu a -10,7 [-13,4 aĹž -7,8] pro spodnĂ stÄnu LK; r < 0,01). Posun hodnot LS u anteroseptĂĄlnĂ stÄny Äinil 3,1 ± 3,6 % a u spodnĂ stÄny 1,46 ± 5,8 %. AnalĂ˝za korelace hodnot CS namÄĹenĂ˝ch rĹŻznĂ˝mi skenery nezjistila statisticky vĂ˝znamnĂŠ vztahy. MĂrnÄ pozitivnĂ vztah byl zaznamenĂĄn mezi zkroucenĂm (r = 0,49; p < 0,01) a narovnĂĄnĂm (r = 0,38; p < 0,05) LK bez statisticky vĂ˝znamnĂŠho rozdĂlu v parametrech. Hodnoty posunu a narovnĂĄnĂm stÄny LK byly 0,14 ± 0,52°/cm, respektive 0,09 ± 0,32°/cm. ZĂĄvÄry: NejshodnÄjĹĄĂ vĂ˝sledky pĹi mÄĹenĂ skenery Philips iE33 (Q-lab) a Affiniti 70 (aCMQ) byly nalezeny u LS bazĂĄlnĂho segmentu spodnĂ stÄny a stĹednĂho segmentu anteroseptĂĄlnĂch stÄn, zkroucenĂ a narovnĂĄnĂ stÄny LK vyĹĄetĹenĂ˝ch pacientĹŻ s AKS. NejvÄtĹĄĂ variabilita mezi hodnotiteli byla zaznamenĂĄna pĹi posuzovĂĄnĂ vĂ˝sledkĹŻ ultrazvukovĂŠho vyĹĄetĹenĂ na ĹĄedĂŠ stupnici v pĹĂpadÄ segmentĂĄlnĂho CS pĹi pouĹžitĂ softwaru skenerĹŻ iE33 a Affiniti 70. © 2021, ÄKS.
No takes yet. Share an insight, caveat, or question.
Швец et al. (2021) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: