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Table 1 Summary of R.I.R.S. scoring system

From: The R.I.R.S. scoring system: An innovative scoring system for predicting stone-free rate following retrograde intrarenal surgery

 

Score

 

1

2

3

Renal stone density (Hu)

≤1000

>1000

 

Inferior pole stone

non-inferior

inferior with RIPA > 30°

inferior with RIPA ≤ 30°

RIL (mm)

≤25

>25

 

Stone burden (mm)

≤10

>10 and ≤20

>20

  1. Range = 4~10 points
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BMC Urology

ISSN: 1471-2490

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