Hepatic Portal Segmentation Using Reconstructed Three-Dimensional Tomography Images/Segmentación Portal Hepática Mediante Imágenes Tomográficas Tridimensionales Reconstituidas

• Published in: International journal of morphology 2017-09, Vol.35 (3), p.859
• Main Authors: Lopez, Cesar Augusto Durand, Giron, Carlos Alberto Torres, Carrillo, Ademar Cervera
• Format: Article
• Language: Spanish
• ISSN: 0717-9367

The anatomical description of reconstructed three-dimensional images of hepatic CT scans (Three-dimensional computed tomographic volume rendering images) has a high percentage of unexplained anatomical variations, so that they do not definitively orient the radiologist and the surgeon. This study allows to observe and to describe the segmental branches of the Hepatic portal vein (A12.3.12.001), its relation with the hepatic veins (A12.3.09.005) and its parenchymal distribution. The study is descriptive and we used percentage expressions to describe the frequency of anatomical characteristics. For this we randomly took 56 three-dimensional reconstructions of liver CTs from adult patients. Portal segmental branches+ and hepatic veins were always identified; we found seven portal segmental branches in all cases. In addition, the segmental portal branch V (five)+ originated from the right portal (A12.3.12.002) in 75 % of cases and from the left (A12.3.12.005) in 21.4 %. KEY WORDS: Reconstructed tomographic images; Liver; Portal segmentation. La descripcion de las imagenes tridimensionales reconstituidas de tomografias hepaticas (Three-dimensional computed tomographic volume rendering images) tiene alto porcentaje de variaciones anatomicas inexplicables, de tal manera que no orientan en forma definitiva al radiologo y al cirujano. Este estudio permite ver y describir las ramas segmentarias de la vena porta hepatica (A12.3.12.001)*, su relacion con las venas hepaticas (A12.3.09.005) y su distribucion parenquimal. El estudio es descriptivo y usamos expresiones porcentuales para citar la frecuencia de las caracteristicas anatomicas, para esto tomamos al azar 56 reconstrucciones tridimensionales de tomografias hepaticas de pacientes adultos. Las ramas segmentarias portales+ y las venas hepaticas fueron identificadas siempre; hallamos siete ramas segmentarias portales en todos los casos, ademas, que la rama portal segmentaria V (cinco)+ nacio de la porta derecha (A12.3.12.002) en 75 % de casos y de la izquierda (A12.3.12.005) en 21,4 %. PALABRAS CLAVE: Imagenes tomograficas reconstituidas; Higado; Segmentacion portal.