2017 Imaging for Physicists Coursebook

Image aqusition

Imaging Procedure

• Localizer

• Anatomic sequences T1, T2 weighted imaging

• Variable Flip angle (VFA) T1 weighted imaging (T1 fitting) (a)

• 3D Gradient echo volumetric imaging (dynamic imaging) (b)

(a) A variable flip angle series, for pre-contrast agent native tissue T

1,0

mapping.

•

Ensure TR and TE values stay constant for all flip angles,

•

Flip angles: The range of # of flip angles supported in the literature varies from 2-7.

•

Number of signal averages (NSA or NEX) > 2.

(b). DCE-MRI Protocol: Pulse Sequence:

•

Pulse Sequence:

3D fast spoiled gradient recalled echo or equivalent

•

Coils:

Transmit: Body coil; Receive: Body coil or phased array receive coil

No parallel imaging options??????

No magnetization preparation schemes