Brain MR venogram without contrast MRI protocol

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 Indications: evaluate for sinus thrombosis.

Sequences:

·        Sagittal T1 spin echo

·        Coronal 2-D time-of-flight with inferior saturation band

·        Rotating 3-D MIP reformats of venous structures

Comments:

·        Suggested 2D TOF parameters: TR/TE = 32-40/8-12; flip angle 50-70 degrees, slice thickness 1.5-3.0 mm, 144 x 256 matrix, NEX 1-2. 

Dictation template:

Sagittal T1 spin echo through the brain.  Coronal 2D time-of-flight MR venogram, with 3-dimensional maximum-intensity-projection (MIP) reformats of the intracranial veins then performed.