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Intrathecal Administration of Gadopentetate Dimeglumine for MR Cisternography of Nasoethmoidal CSF Fistula

Andrés Arbeláez1, Elcy Medina1, Margarita Rodríguez1, Ana C. Londoño1 and Mauricio Castillo2

1 Instituto Neurológico de Antioquia and Universidad de Antioquia, Neuroradiology Department, Calle 55 No. 46–36 Medellín, Antioquia, Colombia.
2 Division of Neuroradiology, Department of Radiology, University of North Carolina, School of Medicine, Chapel Hill, NC.


Figure 1
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  		Fig. 1A —38-year-old woman with definitive diagnosis of sinusitis. Coronal fat-suppressed T1-weighted MR image obtained after intrathecal administration of gadopentetate dimeglumine in normal subarachnoid space.

 

Figure 2
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  		Fig. 1B —38-year-old woman with definitive diagnosis of sinusitis. Parasagittal MR image depicts high signal intensity throughout subarachnoid space.

 

Figure 3
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  		Fig. 2A —36-year-old man with rhinorrhea after trauma. Leak is evident in posterior wall of left frontal sinus. Coronal fat-suppressed T1-weighted MR image shows gadopentetate dimeglumine in subarachnoid space over orbital plate of frontal bone and through frontal sinus (curved arrow).

 

Figure 4
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  		Fig. 2B —36-year-old man with rhinorrhea after trauma. Leak is evident in posterior wall of left frontal sinus. Coronal T1-weighted MR image obtained with patient in prone position shows contrast medium in frontal sinus with fluid–air level (arrow).

 

Figure 5
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  		Fig. 3 —7-year-old boy with meningitis after trauma. Coronal T1-weighted MR image shows contrast medium (arrow) extending from cribriform plate to nasal cavity.

 

Figure 6
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  		Fig. 4A —53-year-old woman with rhinorrhea and sphenoethmoidal CSF leak after trauma. Coronal T1-weighted MR image shows sphenoidal osseous defect (arrow).

 

Figure 7
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  		Fig. 4B —53-year-old woman with rhinorrhea and sphenoethmoidal CSF leak after trauma. Sagittal image shows contrast medium over sphenoethmoidal meatus (arrows).

 

Figure 8
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  		Fig. 4C —53-year-old woman with rhinorrhea and sphenoethmoidal CSF leak after trauma. Axial T1-weighted MR image shows contrast medium (arrow) leaking through sphenoethmoidal junction.

 

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