[Functional MR urography in patients with kidney transplantation].
OBJECTIVE
To assess the value of functional magnetic resonance urology for the noninvasive postoperative evaluation of renal transplants.


METHODS
A saturation inversion projection sequence allows the selective imaging of strongly T1 weighted signal from the MR contrast agent. A control slab leads to images comparable to conventional urography which can be acquired as a sequence with four images per minute.


RESULTS
15 patients with urologic questionable findings after renal transplantation were studied. FMRU revealed in 6 patients normal findings, in 6 moderate dilatation of the renal pelvis without any urodynamic relevant obstruction. 3 pathologic findings, ureteral leak, ureteropelvic-junction obstruction and ureteral stenosis were diagnosed and consequently surgically treated. The imaging quality in all studies was diagnostic and urologically relevant.


CONCLUSIONS
FMRU can be used as a noninvasive technique for the assessment of renal transplant in cases with suspicion of complication in the excretory system.
Knopp
M V
MV
Forschungsschwerpunkt Radiologische Diagnostik und Therapie, Deutsches Krebsforschungszentrum, Heidelberg.
Dörsam
J
J
Oesingmann
N
N
Piesche
S
S
Hawighorst
H
H
Wiesel
M
M
Schad
L R
LR
van Kaick
G
G
D000328:Adult; D000714:Anastomosis, Surgical; D005260:Female; D006801:Humans; D007677:Kidney Function Tests; D016030:Kidney Transplantation / Q000502:physiology*; D008279:Magnetic Resonance Imaging / Q000295:instrumentation*; D008297:Male; D008875:Middle Aged; D011183:Postoperative Complications / Q000175:diagnosis* / Q000503:physiopathology; D051437:Renal Insufficiency / Q000175:diagnosis / Q000503:physiopathology; D014517:Ureteral Obstruction / Q000175:diagnosis / Q000503:physiopathology; D014548:Urinary Fistula / Q000175:diagnosis / Q000000981:diagnostic imaging; D014563:Urodynamics / Q000502:physiology*; D014567:Urography / Q000295:instrumentation*