Cisternogram Flashcards
RP
Dose
Admin
0.5 - 1.5 mCi In111 DTPA
Intrathecal injection
Indications
Evaluate CSF flow
Detection of CSF leak
Evaluation and detection of hydrocephalus
Contraindications
None
Patient Prep
Utilize sterile field
Prepare patient for spinal injection from physician
Patient to remain supine for 2 hours post injection to reduce headache
Positioning
Images
Supine
ANT, POS, LLAT, RLAT, LAT Marker, Injection site
Target organ
Critical organ
Route of excretion
Localization
Target - Brain and spinal cord
Critical - Brain and spinal cord
Excretion - Urinary
Localization - Compartmentalization
Normal Pressure Cisternogram
Inject RP then place pledgets Image at 2, 4, 6 hours post injection Possible 24, 48 Image Injection site Pledgets removed after last image Blood is drawn after last image If pledgets 2x background - positive
High Pressure Cisternogram
Place pledgets then inject RP Image at 1 - 2 hours post injection Image injection site Remove pledgets at time of imaging Blood is drawn after last image If pledgets 2x background - positive
Computer Set Up
TIME STAMP ALL IMAGES MEGP Collimator 256 x 256 Statics - 5 minutes/image *Peak in for Indium*
Processing
JetStream - Donna Wright Marie
Xeleris - Cisternogram