[Reassessment of a combination of cerebrospinal fluid scintigraphy and nasal pledget counts in patients with suspected rhinorrhea].
A combination study of cerebrospinal fluid scintigraphy and nasal pledget counts was performed using 37 MBq of 111In-DTPA in 12 patients with suspected rhinorrhea. A pledget was inserted and dwelled in each nasal cavity for 6 hours, with the patient prone during at least 30 minutes. A total of 18 studies was implemented and nasal pledget counting method successfully diagnosed all of CSF rhinorrhea. Diagnosis was possible when pledget counts were greater than 1 kcpm. In patients with persistent, intermittent and occult/no nasal discharge, rhinorrhea was found in 100% (5/5), 60% (3/5), 25% (2/8), respectively. Two cases only exhibited positive scintigraphy. MRI or CT cisternography should be first performed in patients with persistent discharge, but in patients with intermittent/occult discharge pledget counting method might take priority of other diagnostic modalities. In conclusion, nasal pledget counting method is a simple and useful tool for detecting rhinorrhea.
Kosuda
S
S
Department of Radiology, National Defense Medical College.
Arai
S
S
Hohshito
Y
Y
Tokumitsu
H
H
Kusano
S
S
Ishihara
S
S
Shima
K
K
D000293:Adolescent; D000328:Adult; D000368:Aged; D002555:Cerebrospinal Fluid / Q000000981:diagnostic imaging*; D002559:Cerebrospinal Fluid Rhinorrhea / Q000175:diagnosis* / Q000000981:diagnostic imaging; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007205:Indium Radioisotopes; D008297:Male; D008875:Middle Aged; D017817:Nasal Lavage Fluid / Q000166:cytology; D004369:Pentetic Acid; D011877:Radionuclide Imaging; D019275:Radiopharmaceuticals; D012680:Sensitivity and Specificity
D007205:Indium Radioisotopes; D019275:Radiopharmaceuticals; D004369:Pentetic Acid