Categorías: Todo - renal - interpretation - function - imaging

por alyssa lopez hace 11 años

234

Diuretic Renal Imaging

Diuretic renal imaging is utilized to differentiate between obstructive hydronephrosis and non-obstructive collecting system dilation while also assessing renal function and urodynamics.

Diuretic Renal Imaging

Diuretic Renal Imaging

ABNORMAL RESULTS

HETEROGENEOUS UPTAKE
ONE OR NO KIDNEY VISUAL
CLEARANCE HALF TIME OF <8 MIN OR >12 MIN

NORMAL RESULTS

BOTH KIDNEYS VISUAL
HOMOGENEOUS UPTAKE
CLEARANCE HALF TIME OF 8-12 MIN THUS SHOWING NORMAL RENOGRAM

IMAGING

IMAGE FOR AN ADDITIONAL 20 MIN AFTER FUROSEMIDE INJ.
POSTERIOR
STARTS IMMEDIATELY, 2 MIN FLOW FOLLOWED BY 18 MIN OF DYNAMICS (USUALLY)

FUROSEMIDE (LASIX)

USUALLY ADMINISTERED 15-20 MIN AFTER RPH INJECTION OR WHEN PELVIS IS DIALTED
1 mg/kg FOR CHILDREN
40 mg FOR ADULTS

INTERPRETATION

RENOGRAM
SHOWS TIME ACTIVITY CURVE
FINAL IMAGES
VISUAL UPTAKE

RADIOPHARMACEUTICALS

TC99m-DTPA (10-20 mCi)
TC99m-MAG3 (10-20 mCi)

INDICATIONS

EVALUTION OF RENAL FUNCTION AND URODYNAMICS
DISTINGUISH BETWEEN OBSTRUCTIVE HYDRONEPHROSIS AND NON-OBSTUCTIVE COLLECTING SYSTEM DIALATION

CONTRAINDICATIONS

MEDICATIONS THAT BLOCK TUBULAR SECRETION
RENAL ARTERIOGRAM USING IV IODINATED CONTRAST

PATIENT PREP

OFF ANY DIURETICS
WELL HYDRATED
OFF ACE INHIBITORS FOR 1 WEEK