Position the patient in dorsal recumbency ( Figure 2). The radiographic marker is placed along the dorsal and cranial aspect of the collimated FOV. The caudal projection FOV is centered just dorsal to the humeral scapular joint and first rib it should extend cranially to the mid cervical spine and caudally to approximately the third rib.The cranial projection FOV should include the caudal portion of the skull to just cranial to the level of the scapulohumeral joint.For larger patients (cranial and caudal images):.For smaller patients, collimate the FOV to include the caudal portion of the skull (cranial limit) to just caudal of the scapulohumeral joint (caudal limit).Palpate the vertebrae of the cervical spine and place the horizontal line of the FOV at this plane.The collimated lateral image is centered over the cervicothoracic spine, and extends from the mid cervical spine (cranial limit of field of view ) to just caudal to the scapulohumeral joint.įor the lateral projection, the FOV excludes the ventral and dorsal soft tissues of the neck, only including the cervical vertebral bodies and immediate soft tissues adjacent to the spine. The sponge elevates the cranial portion of the cervical spine, making it level and lateral with the caudal portion of the cervical spine.Ĭollimated Projection: Cervicothoracic Spine If the patient is a large-breed dog, place a sponge under the cervical spine and skull cranial to the shoulder. Place the skull in lateral position then extend the skull and spine naturally and pull them straight cranially.Move the lumbar area of the dog dorsally, allowing the cervical spine to align with the horizontal collimation light. ![]() ![]() There will always be some degree of superimposition of the scapula.
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