3D Nephrometry Scoring System for Renal Tumours undergoing PN

• 17 Mar 2020 06:10:54 PM
• |Onco Urology

Dear all,

Several nephrometry scoring systems have been developed based on two- dimensional computerized tomography images to quantify anatomical features of renal tumours. Some of them which have been validated are R.E.N.A.L, PADUA, C-index nephrometry, Diameter Axial Polar Nephrometry, Arterial based Complexity Scoring System, the Surface–Intermediate–Base Margin Score (SIB Score), Zonal NephRo Scoring System and MAP Score to Predict Adherent Perinephric Fat (APF, Mayo).

Jingchao Liu, Benkang Shi*, Xianzhou Jiang* et al (2020) have developed an accurate three-dimensional nephrometry scoring system.

https://peerj.com/articles/8637.pdf

This Scoring System quantifies the Anatomical Features accurately and also helps in the prediction of Warm ischaemia time.

All cases underwent contrast-enhanced CT scan preoperatively with multi-slice CT system. The enhanced images (including arterial, venous and excretory phases) were then input into 3D rendering software for post processing. The Image can be rotated in all axes to obtain more accurate informations.

Based on the 3D models, software could automatically calculate tumour volume, endophytic tumour volume and longitudinal distance from tumor to equatorial plane (LDTE). It can also demonstrate the whole anatomical structures from different angles. The 3D score measurements were made directly on 3D models.

This scoring system has been validated only internally at present but it appears that soon we will be hearing more regarding the usefulness of this scoring system. The number of Lap and Robotic PN are on a rise globally and more of technically demanding cases are taken up for such procedures. Hence it has become necessary for a scoring system to accurately predict complexities preoperatively.

With warm regards,

Venu