Publication: Análisis de la cuantifiación tridimensional de las vías lagrimales en tomografía computarizada
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2017-08-22
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Universidad Complutense de Madrid
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Abstract
La descripción de la anatomía del sistema de drenaje lagrimal en la literatura es poco precisa. Se han realizado mediciones del canal nasolagrimal óseo (CNLO) en cadáver, radiografía y tomografía computarizada (TC). JUSTIFICACIÓN, HIPÓTESIS DE TRABAJO Y OBJETIVOS Hasta ahora, todas las mediciones realizadas sobre imágenes tienen al menos un paso manual, lo que inevitablemente degrada la fiabilidad de los datos obtenidos. La mayoría de las mediciones realizadas en TC son bidimensionales y únicamente en unos pocos niveles del canal; y las que son tridimensionales presentan algún paso manual. Se han publicado resultados contradictorios sobre la relación entre las dimensiones en TC del canal nasolagrimal óseo y la patología obstructiva del sistema de drenaje lagrimal, que obligan a revisar la calidad de las mediciones en las que se basan...
Anatomical descriptions of the lacrimal drainage system in the literature have been largely inaccurate. Such descriptions have been based on measurements taken of the bony nasolacrimal canal (BNLC) in cadaver, radiography and computed tomography (CT) studies. JUSTIFICATION, HYPOTHESES AND OBJECTIVES The procedures used so far to make measurements on images including 3-D CT have involved a manual step, which reduces the reliability of the data obtained. Most CT measurements are 2-D and only taken at a few levels of the canal. The relationship between the dimensions of the healthy and obstructed BNLC has also been disputed determining a need to review the quality of measurements...
Anatomical descriptions of the lacrimal drainage system in the literature have been largely inaccurate. Such descriptions have been based on measurements taken of the bony nasolacrimal canal (BNLC) in cadaver, radiography and computed tomography (CT) studies. JUSTIFICATION, HYPOTHESES AND OBJECTIVES The procedures used so far to make measurements on images including 3-D CT have involved a manual step, which reduces the reliability of the data obtained. Most CT measurements are 2-D and only taken at a few levels of the canal. The relationship between the dimensions of the healthy and obstructed BNLC has also been disputed determining a need to review the quality of measurements...
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Tesis inédita de la Universidad Complutense de Madrid, Facultad de Medicina, Departamento de Oftalmología y Otorrinolaringología, leída el 11-01-2016