NECK Flashcards
(26 cards)
On the coronal display of the MRA of neck, the vertebral arteries are located
Medial to carotid arteries
For optimal imaging of the thyroid gland, patients are positioned
Supine and local coils are placed on the anterior neck
On a 24 cm FOV, sag T spine image on localizer, the vertebral level can be determined by using
A larger FOV and counting down from C2
In T spine imaging, images acquired directly through intravertebral disc spaces are in the
Oblique axial plane
The conus medullaris in adult patients are best demonstrated by any of the following except
Coronal images of the thoracic spine
What is kyphoplasty
Procedure to fix fracture
On T1 weighted images of the spine, the CSF appears
Hypointense to the spinal cord
To rule out metastatic lesions of the spinal cord, contrast can be used with T1 weighted images because
Metastatic lesions enhance and normal cord does not
When you increase your TR
You increase scan time and increase SNR
On the sagittal display of the MRA of subclavian, the ascending aorta is located
Anterior to descending aorta
On the coronal display of the MRA of neck, the vertebral arteries arise from
Subclavian artery‘s
The technique that is typically used for the evaluating dissection of carotid artery
SE and black blood
STIR sequences can suppress the signal from all of the following except
Fluid (CSF)
When doing an MRA of the carotid artery‘s, a saturation bands should be placed_______to the axial slices
Superior
The MRA sequence that is used to show flow direction is
Phase contrast
In an inversion recovery pulse sequence, image contrast is controlled by
TR, TE, And TI
Reducing NSA will reduce the scan time and
Decrease the SNR
Increasing the phase matrix
Increases scan time
Increasing FOV
Does not affect scan time
Decreasing the receiver bandwidth
Increases SNR
Fat sat being an issue while scanning soft tissue neck, what technique should you implement to accomplish fat sat
Scan thicker and thinner part of the neck separate, use shim volume, scan with Dixon sequence
A short TI inversion recovery (STIR) sequence can suppress the signal from
Fat, gadolinium enhancing lesion
Pre-saturation pulses are often used to
Reduce flow artifacts
In a TOF sequence, flowing blood is hyper intense relative to stationary tissue because of
Flow related enhancement
