1. IAEA CN-255 Paper233 PEDIATRIC RADIATION PROTECTION THROUGH 99mTc -DMSA ADMINISTRED ACTIVITY STUDY AT NUCLEAR MEDICINE DEPARTMENT, CONSTANTINE, ALGERIA.
Dr. MANSOURI, Farouk
Nuclear Medicine Department, University Hospital Dr Benbadis,Constantine, Algeria.
International Conference on Radiation Protection in Medicine: Achieving Change in Practice Vienna ,Austria December 2017

2. Methods
The aim of this work is to compare injected and recommended EANM dosimetry and pediatrics committees activities for 99mTc-DMSA renal scintigraphy.
A retrospective study, 118 children, explored for renal nuclear medicine procedure using 99mTc-DMSA.
Injected DMSA activity was compared to the recommended EANM dosimetry and pediatrics committees activities .
The DMSA activities were divided as:
-Equal activity : Recommended activity.
-Lower activity : Recommended activity (<-0,1mCi).
-Higher activity: Recommended activity (>+0,1mCi).

3. Study population Medical indications Under one year old were 21%.
79 % had less than 7 years
Over 10 years 17% (small proportion)
Medical indications
Consequences of congenital urinary diseases.
Ectopic kidney detection.
Renal focal abnormalities detection.
Acute or chronic pyelonephritis.
Nonfunctional kidney confirmation.

4. Administered activities resolts :
Speciality
Number
percent
Pediatric surgeon 86 73
Pediatric physician 20 17
Urologist 4 3
Nephrologist 1
Other
Unknown
Prescriber’s panel: 94% of prescribers presents a high degree of specialization because they are in close relation with: Patient age : Pediatric specialist and Pediatric surgeon. Disease specialists: Pediatric surgeon, Urologist and nephrologist,
Administered activities resolts :
Equal activity : 92 patients (78%),
Low activity (La) (8): 24 patients (20%),
High activity (HA) (9): 2 patients (2%),

5. Conclusion
Local law guide the radiopharmaceutical activities prescriptions helped by the society’s guideline.
Required medical indication prescribed by a medical competence able to use it.
Dosimetry study did not show dose who can reach the critical thresholds.
The implementation of an internal system is necessary and allows to:
Harmonize prescriptions.
Detect the possible abnormalities.
Take decisions (in case)
Obtain the total satisfaction of three rules of the radiation protection especially in pediatric population.