9. KIDNEY FOUR PHASE (r/o mass)

Scan Acquisition  Native
 (abd / pelvis w/o)
 Arterial
 (kidneys only)
 Venous
 (abd / pelvis)
  Delay
 (abd / pelvis)
KV / effective mAs / rotation time  120 / 200 / 0.5  120 / 200 / 0.5  120 / 200 / 0.5  120 / 200 / 0.5
Detector collimation  1.5 mm  1.5 mm  1.5 mm  1.5 mm 
Slice Thickness  3.0 mm  3.0 mm  3.0 mm  3.0 mm 
Pitch  0.75  0.75  0.75   0.75 
Kernel  B30f  B30  B30  B30 
Increment   2.0 mm  2.0 mm  2.0 mm  2.0 mm  
Image order  Cranial to caudad
Oral Contrast  INPATIENTS: 250 cc’s of water mixed with 7cc of Gastroview = 1 dose. 1 Dose given
    orally every ½ hour for two hours prior to exam
 OUTPATIENTS: 1 bottle of Redicat taken orally two hours before exam. ½ bottle of
    Redicat given 45 minutes prior to exam. Last ½ of 2nd Redicat bottle given on
    the CT table
Intravenous Contrast  100 cc Isovue 300 at 3 cc/sec 18 - 22 ga IV needed preferably in the AC.
Scan Delay  Initial/25 sec arterial/ 50 sec venous / 240 sec excretory  *(break into columns?)*