RESUMEN
<p><b>OBJECTIVE</b>To study the methods of three-dimensional reconstruction of digitized virtual hepatic.</p><p><b>METHODS</b>Images of DSCF 2511-2520 were taken from the database of digitized Virtual Chinese Human female No. 1 (VCH-F1). Method of insertion value algorithm of three-dimensional reconstruction was used to make three-dimensional block diagram. In ordering to auto-judge the position of hepatic solid and hepatic ducts, these images were shown with different colors according to the character of color and location of every spot.</p><p><b>RESULTS</b>Stereo image of hepatic solid could be shown satisfactorily. Every shape of stereo image and the structure of hepatic duct could be shown by revolving the three-dimensional image with different direction.</p><p><b>CONCLUSIONS</b>The image of hepatic database of digitized Virtual Chinese female No. 1 was exact. The three-dimensional image of the liver and hepatic duct made by insertion value algorithm of three-dimensional reconstruction were distinct, and it was a ideal method of three-dimensional reconstruction.</p>
Asunto(s)
Adulto , Femenino , Humanos , Conducto Hepático Común , Procesamiento de Imagen Asistido por Computador , Imagenología Tridimensional , HígadoRESUMEN
<p><b>OBJECTIVE</b>To establish the modal of perfusing and casting in hepatic duct system and explore the methods of three dimensional reconstruction with CT scanning image after filling hepatic duct.</p><p><b>METHODS</b>All canal of livers with integral porta hepatic were perfused with various filling material after pretreatment, then fixed and casted. Hepatic preparations that had been perfused were put into the model of modelling abdominal cavity and scanned with thin slice. The three dimensional duct structures of hepatic with three methods of MIP, SSD and computerized treatment.</p><p><b>RESULTS</b>Fourteen hepatic samples were filled and casted. Nine hepatic samples were scanned with slice height 1.0 mm, all 2514 slice images and average 279 images. Five hepatic samples were scanned with slice height 3.0 mm, all 512 slice images and average 102 images. Intrahepatic vein and portal vein system of three dimensional reconstruction were seen clearly with MIP method. The three dimensional established three dimensional images with SSD method was shown much stronger than that of MIP method. The three dimensional images of hepatic solid and hepatic vein system were established with method of comperized treatment. Vary three dimensional shape of hepatic solid and hepatic vein was obtained through different direction rotational.</p><p><b>CONCLUSIONS</b>The modal filled and casted hepatic duct system were practise. The images established three dimensional with methods of MIP, SSD and comperized treatment were seen clearly. The modal and images of thin slice CT scanning are a better method for researching hepatic duct system.</p>