Comprehensive appraisal of cardiac motion artefact in optical coherence tomography

Background: The relation between cardiac motion artefact (CMA) in optical coherence tomography (OCT) and the phases of cardiac cycle is unclear. Methods: Optical coherence tomography pullbacks containing metallic stents were co-registered with angiography and retrospectively analyzed. The beginning of three phases, namely ejection, rapid-inflow and diastasis, was identified in angiography. Rotation, shortening, elongation and repetition were qualitatively labelled as CMA artefacts. Platforms with coaxial longitudinal connectors (ML8 and Magmaris) entered a quantitative sub-study, consisting of measuring the length of their connector at the beginning of each phase. Results: A total of 261 stents (127 patients) were analyzed, including 105 stents for quantitative sus-tudy. CMA was detected in 61 (23.4%) stents: rotation in 6 (2.3%), shortening in 50 (19.2%), elongation in 51 (19.5%) and repetition in 12 (4.6%). Shortening was always observed during ejection phase, while elongation and repetition were always observed during rapid-inflow. Rotation occurred in both ejection and rapid-inflow phases, while no artefact was reported during diastasis. Longitudinal connectors measured in early ejection phase and in early rapid-inflow phase were shorter and longer, respectively, than those measured in diastasis, irrespective of the presence of CMA in the qualitative assessment. Conclusions: Cardiac motion artefact is prevalent in OCT studies, but shortening and elongation of vascular structures occur during early ejection and during early rapid-inflow, respectively, to a greater or lesser extent in all cases. Diastasis is free of CMA and hence the period in which longitudinal measurements can be more accurately quantified

Promoción y desarrollo de competencias transversales y profesionales en estudiantes del grado de Psicología

Depto. de Personalidad, Evaluación y Psicología ClínicaFac. de PsicologíaFALSEsubmitte

Teachers' network and digital repository of educational resources: A history of contemporary capitalism I. The crisis of the liberal State and the first globalization through filmic, literary and aesthetic sources.

Se trata de crear un repositorio digital de apoyo a la docencia virtual, con contribuciones innovadoras en el empleo de fuentes artísticas y culturales para el estudio de la crisis del Estado liberal y de la primera globalización (1920-1930).This project aims to create a digital repository to support virtual teaching, with innovative contributions in the use of artistic and cultural sources for the study of the crisis of the liberal State and the first globalization (1920-1930).Depto. de Filosofía y SociedadFac. de FilosofíaFALSEUCMsubmitte

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Red de docentes y repositorio digital de recursos educativos: Una historia del capitalismo contemporáneo II. La crisis del fordismo a través fuentes fílmicas, literarias y estéticas

Depto. de Filosofía y SociedadFac. de FilosofíaFALSEsubmitte