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This chapter provides an overview of fundamental principles and terminology associated with anatomic position and radiographic projections. Key terms such as superior, inferior, anterior, posterior, and various angles are defined within the context of human anatomy. The chapter explores different body positions, including supine, prone, and upright, and details how they affect the direction of X-ray projections. Understanding these concepts is essential for accurately positioning patients during imaging procedures to ensure effective diagnosis.
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Chapter 1 Principles and Terminology
Anatomic Position • ________________ • Arms to the side • _______________ • Head straight • ______________
Important Terminology • ___________Plane • Right and left • __________ Plane • Anterior (front) and posterior (back) • _________ Plane • Superior (top) and inferior (bottom) • _________Plane • Any angled plane
___________ An angle toward the head. _________ An angle away from the head (toward the feet) Cephalad vs. CaudadReferring to the angle of an ________
Radiographic Projections • Describes the path of the _____________
PA The CR travels __________________ PA Oblique AP The CR travels ________________ AP oblique Posteroanterior and Anteroposterior
Mediolateral The CR travels from the _________________ Lateromedial The CR travels from the ____________________ Mediolateral and Lateromedial
Basic Rule • There is a minimum of ____________ • __________ from each other • For joints try __________ (2) 90⁰ from each other (1) Oblique
Body Positions • Describes the way the __________ is to be placed.
General Positions • _________ • On their back • ___________ – On their stomach • __________ - Upright • __________ – Lay down (Any way)
Specific Positions • ____________ – Side closest to the IR • _____________ – In between AP or PA and Lateral • ___________ Oblique • Oblique with a specific posterior side closest to the IR • ___________ Oblique • Oblique with a specific anterior side closest to the IR
Decubitus • _____________ • Having a horizontal CR to detect fluid levels • Right or Left _________ (AP or PA) Decubitus • The patient lies on right or left side with the CR traveling AP or PA • ___________Decubitus – Patient lies on their back and the CR travels horizontal (Lateral) • ___________ Decubitus – Patient lies on their stomach and the CR travels horizontal (Lateral)