SPECT/CT fusion imaging in radionuclide cisternography for localization of liquor leakage sites.
OBJECTIVE
We report our experience with radionuclide cisternography (RC) with 111In-diethylenthriamine penta-acetic acid (DTPA) using a computed tomography (CT) mounted hybrid gamma camera in patients with cerebrospinal liquor leakage.


METHODS
SPECT/CT fusion imaging was performed in case of suspected tracer egress on planar or SPECT images in order to obtain a detailed correlation of the leakage site.


RESULTS
Leakage was detected in all 3 patients. Using SPECT/CT, the extradural tracer accumulation could be correlated to an anatomical structure, which had not been possible by evaluation of the scintigraphic studies alone.


CONCLUSIONS
Introducing SPECT/CT for radionuclide cisternography seems to be a valuable tool to facilitate the diagnosis of cerebrospinal liquor leakage.
Novotny
Clemens
C
Department of Nuclear Medicine, Medical University of Vienna, Vienna, Austria.
Pötzi
Christian
C
Asenbaum
Susanne
S
Peloschek
Philipp
P
Suess
Erhard
E
Hoffmann
Martha
M
D001921:Brain / Q000000981:diagnostic imaging*; D002555:Cerebrospinal Fluid; D002559:Cerebrospinal Fluid Rhinorrhea / Q000000981:diagnostic imaging; D005260:Female; D006801:Humans; D007205:Indium Radioisotopes; D019585:Intracranial Hypotension / Q000000981:diagnostic imaging; D008297:Male; D016920:Meningitis, Bacterial / Q000000981:diagnostic imaging; D008875:Middle Aged; D009192:Myelography / Q000379:methods*; D004369:Pentetic Acid; D013116:Spinal Cord / Q000000981:diagnostic imaging*; D015899:Tomography, Emission-Computed, Single-Photon / Q000379:methods*; D014057:Tomography, X-Ray Computed / Q000379:methods*; D055815:Young Adult
D007205:Indium Radioisotopes; D004369:Pentetic Acid