Specific anatomic region Kidney
Application Hematuria
Author Elliot K Fishman, MD
Reference Source JHU Protocol
Scanner Used Siemens Sensation 64
KV/Effective mAs/ Rotation time (sec) 120 / 250/ 0.33
Detector Collimation (mm) 0.6
Slice thickness (mm) 0.75mm
Pitch 0.75
Kernel 30
Reconstruction interval 0.5mm
Image order (acquisition) Cr-ca
Oral contrast 1000 cc water 15-20 minutes prior to study
IV contrast volume and type 100-120 cc Omnipaque 350
Injection rate 3-4cc/sec
Scan delay (sec) 25 sec (arterial)/ 60 sev (venous)/ 4-5 min (excretory)
3D technique used VRT & MIP
The question is to maximize the information yet minimize the phases used. Non contrast is done with 5 mm thick sections at 5 mm intervals. The venous phase can be eliminated in many cases but an excretory phase is mandatory to exclude infection by TCC.