Cervical Spine - Lateral (Grandy)

How is the patient placed for a C-Spine Lateral (Grandy) projection?

• upright, seated or standing

• top of IR is about 1” above EAM

• C4 in center of IR

• shoulders in same horizontal plane, relaxed down

• chin elevated and mandible protruded

Where is the central ray placed for a C-Spine Lateral (Grandy) projection?

horizontal and perpendicular to C4

What is the collimation size for a C-Spine Lateral (Grandy) projection?

radiation field 10 × 12 inches

What is the SID for a C-Spine Lateral (Grandy) projection?

a 60-72” SID is recommended to compensate for the increased OID

What is the breathing instructions for a C-Spine Lateral (Grandy) projection?

suspend respiration at the end of full expiration to obtain maximum depression of the shoulders

What is the Evaluation Criteria for a C-Spine Lateral (Grandy) projection?

• all seven cervical vertebrae and at least one-third of the T1

• C4 in the center of the radiograph

• superimposed zygapophyseal joints and open intervertebral disk spaces

• spinous processes shown in profile

If top third of T1 is not demonstrated, what is required projection?

a lateral of the cervicothoracic (swimmers)

The C-Spine Lateral (Grandy) projection is a specific lateral view of the cervical spine used to evaluate the:

cervical vertebrae from C1 to C7

The Cervical Lateral projection primarily visualizes the:

• cervical vertebra

• zygapophyseal joints

• intervertebral disk space

• spinous process