Pediatric case: low dose localization CT

Clinical Case

Patient History

Girl aged 10, spontaneous pain while running in the 1st metatarsal bone of the R foot.

SPECT/CT Acquisition:

740 MBq 99mTc   age and weight adjusted
LEHR collimator
360° tomo 60 steps of 15 sec 128x128 zoom 1.0
CT 120 kv, 15 mA, 
DLP=40 mGy*cm, CTDI=1,5 mGy


Courtesy of Dr. Ph. Declerck Clinic St Jean, Belgium


Dynamic study showed decreased perfusion in the R foot due to disuse.
Normal aspect of the R foot, negative bone scan.