3D-visualization by MRI for surgical planning of Wilms tumors

RöFo : Fortschritte auf dem Gebiete der Röntgenstrahlen und der Nuklearmedizin
J P SchenkP Günther

Abstract

To improve surgical planning of kidney tumors in childhood (Wilms tumor, mesoblastic nephroma) after radiologic verification of the presumptive diagnosis with interactive colored 3D-animation in MRI. In 7 children (1 boy, 6 girls) with a mean age of 3 years (1 month to 11 years), the MRI database (DICOM) was processed with a raycasting-based 3D-volume-rendering software (VG Studio Max 1.1/Volume Graphics). The abdominal MRI-sequences (coronal STIR, coronal T1 TSE, transverse T1/T2 TSE, sagittal T2 TSE, transverse and coronal T1 TSE post contrast) were obtained with a 0.5T unit in 4 - 6 mm slices. Additionally, a phase-contrast-MR-angiography was applied to delineate the large abdominal and retroperitoneal vessels. A notebook was used to demonstrate the 3D-visualization for surgical planning before surgery and during the surgical procedure. In all 7 cases, the surgical approach was influenced by interactive 3D-animation and the information found useful for surgical planning. Above all, the 3D-visualization demonstrates the mass effect of the Wilms tumor and its anatomical relationship to the renal hilum and to the rest of the kidney as well as the topographic relationship of the tumor to the critical vessels. One rupture of the ...Continue Reading

Citations

Sep 10, 2005·Der Radiologe·J-P SchenkJ Tröger
Aug 26, 2006·Der Urologe. Ausg. A·F SesekeB Kremens
Jan 15, 2008·European Radiology·Jens-Peter SchenkJochen Tröger
Mar 23, 2020·Journal of X-ray Science and Technology·Guoliang SunXiaoping Chen

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