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Understanding the Thoracic Spine: Anatomy and Imaging Techniques

This chapter delves into the anatomy of the thoracic spine (T-spine) and its unique characteristics compared to the cervical and lumbar regions. It covers the awareness of the vertebrae sizes, the costovertebral joints, and articulations with ribs. Critical landmarks for C & T-spine topography are addressed, including specific measurements and their clinical relevance. The imaging routines for the T-spine, including AP, lateral, and swimmer’s views, are outlined, detailing positioning, radiation settings, and techniques to obtain clear images while enhancing patient comfort.

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Understanding the Thoracic Spine: Anatomy and Imaging Techniques

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  1. Chapter 9 T-Spine

  2. T-Spine Vertebrae • _________ smaller (Cervical like) • _________ typical Thoracic • _________ larger (Lumbar like) • Facets for ribs

  3. Costovertebral Joints • _______________– Each vertebra. Accepts head of rib • _______________ – Where rib articulates with 2 vertebrae.

  4. Costotransverse joints • Facets on _________________ • Articulates with rib tubercles • T1-10 • T11-12 ______________

  5. T-spine characteristics • Spinous process _________________ • Zygapophyseal joints ________________. Seen on obliques • Intervertebral foramina - ____________________________

  6. C&T-spine topographic landmarks • Mastoid tip __________ • 1” below EAM – C1 • Gonion ___________ • Jugular notch – T2-3 • Sternal angle _____________ • Xiphoid tip – T9-10

  7. T-Spine Imaging Routine • AP • Lateral • Swimmers • 40” SID • 80-85kVp • Recumbent

  8. AP T-Spine • Supine • Have pt ____________________ • CR to T7 – _______________________ • Midsagittal • Collimate to 4-5” • Suspend respiration on _____________

  9. Lateral T-Spine • Supine • Can place small sponge in small of back for support • Flex knees • CR to ____________________ from spinous process • _____________________can help blur ribs and pulmonary markings

  10. Swimmers • __________________well on lateral • Place pt in lateral • Arm closest to ____________ • Arm farthest from ______________ • CR _______________notch • May put slight __________________if needed.

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