Élastographie par ondes de cisaillement pour prédire les résultats de la lithotripsie extracorporelle par ondes de choc dans les calculs rénaux pédiatriques (SWE-ESWL)

Pediatric patients under 18 years of age diagnosed with renal stones measuring 6-20 mm and scheduled for extracorporeal shock wave lithotripsy (ESWL). Patients will be recruited from the outpatient clinic and followed for 3 months.

Proper history, examination and basic laboratory investigations (CBC, coagulation profile, kidney and Liver functions, urine analysis and urine culture and sensitivity) will be performed for all participants.

Low dose CTUT will be performed as usual for all patient to record stone location, size (maximum longitudinal and transverse dimensions), and HU.

Renal stone elastography values will be measured by a single radiologist using grayscale renal US and SWE.

SWE measurements will be performed once prior to ESWL. A Philips EPİQ7 system (Philips Medical Systems, Bothell, WA) with a 1-5-MHz abdominal probe will be used for the procedure.

Inclusion Criteria:

• Inclusion criteria:

  1. Single Renal stones measured 6- 20 mm in maximal dimension.
  2. ESWL will be planned as the first line of treatment.

Exclusion Criteria:

1. Patients with internal ureteral stent.
2. ureteral stones.
3. abnormal renal anatomies (pelvic kidney, horseshoe kidney, and rotational anomaly).
4. active UTI at time of ESWL.
5. coagulopathy .

Exclusion Criteria:

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