ACE Inhibitor
Renal Scintigraphy
Optional manuevers
2 day study may be employed
If ACE Inhibited Study
is abnormal, basline
may be performed next
day
If it is normal,
then no baseline
is necessary
Patient Prep
Pt should be well hydrated
NPO 4 hrs
ACE Inhibitors should
be held
Enaliprat/Lisinopril
1 week
48 hrs
Imaging Protocol
Post-void
Upright
500k counts
Dynamic
10-30 sec/frame->30minutes
Flow
1-3 sec/frame->30frames
Contraindications
Patient Motion
Pregnant/Breastfeeding
Indications
Renal Hypertension
Critical Organ
Bladder wall
Instrumentation
128x128 matrix
Dynamic/Flow
LEHR
LFOV
Imaging Techniques
Kidneys near top of FOV
Patient Supine
Image Posterior
Analysis
Abnormal Study:
Lingering Uptake after
administration of ACE
inhibitor
RPH not washing out
Normal Study:
RPH should wash out
regardless of ACE
inhibitor
Captopril
imaging begins 1 hour after
25-50mg taken orally
Radiopharmaceuticals
99mTc-MAG3
1-10 mCi
(1mCi if doing
1day baseline
study)
99mTC-DTPA
1-10mCi
