Position: Skull PA The PA skull projection demonstrates frontal bones and orbits. It reduces radiation to the eyes compared to AP. This projection evaluates fractures and sinus pathology. Proper positioning prevents rotation. It is a standard ARRT requirement.
Position: Skull PA Axial Caldwell The Caldwell projection uses a caudal angle to project the petrous ridges into the lower third of the orbits. This view evaluates frontal sinuses and orbital margins. It is essential for trauma and sinus imaging. Proper positioning ensures accurate ridge placement. It is frequently tested on ARRT exams.
Position: Skull SMV The submentovertex projection demonstrates the base of the skull, zygomatic arches, and sphenoid sinuses. The neck is hyperextended to place the vertex against the detector. This projection evaluates fractures and cranial base pathology. Proper positioning is challenging but essential. It is a recognized ARRT special projection.
Position: Facial Bones Waters The Waters projection demonstrates the maxillary sinuses and orbital floors. The chin is elevated to project the petrous ridges below the maxillary sinuses. This projection evaluates facial fractures and sinus disease. Proper positioning prevents orbital distortion. It is a core ARRT competency.
Position: Facial Bones Modified Waters The modified Waters projection reduces chin extension to better visualize the orbital floors. It is essential for evaluating blowout fractures. Proper positioning prevents excessive elongation. This projection complements standard Waters. It is frequently tested on ARRT exams.
Position: Facial Bones Lateral The lateral facial bones projection demonstrates nasal bones, maxilla, and zygoma. It is essential for evaluating fractures and soft tissue injuries. Proper positioning ensures superimposition of facial structures. This projection complements Waters and Caldwell views. It is a standard ARRT requirement.
Position: Nasal Bones Lateral The lateral nasal bones projection demonstrates the nasal bones in profile. It is essential for evaluating fractures. Proper positioning prevents superimposition of the maxilla. This projection is simple but clinically important. It is a core ARRT competency.
Position: Nasal Bones Waters The Waters projection for nasal bones demonstrates the nasal septum and maxillary sinuses. It evaluates fractures and deviation. Proper chin elevation is essential. This projection complements the lateral view. It is frequently tested on ARRT exams.
Position: Zygomatic Arches SMV The SMV projection demonstrates the zygomatic arches without superimposition. It is essential for evaluating fractures. Proper hyperextension of the neck is required. This projection is a recognized ARRT special view. It complements oblique arch views.
Position: Zygomatic Arches Oblique Tangential The tangential projection rotates the head to isolate one zygomatic arch. It is essential for evaluating depressed fractures. Proper rotation and tilt prevent superimposition. This projection complements the SMV view. It is frequently tested on ARRT exams.