Position: Nasal Bones Axial The axial nasal bones projection demonstrates the nasal septum and anterior nasal spine. It evaluates fractures and deviation. Proper beam angulation prevents superimposition. This projection complements lateral nasal views. It is recognized on ARRT exams.
Position: Nasal Bones Tangential The tangential nasal projection demonstrates the nasal bridge and soft tissue contour. It is used for trauma and cosmetic evaluation. Proper positioning prevents distortion. This projection complements AP and lateral views. It is a standard ARRT competency.
Position: Mandible Towne The Towne mandible projection demonstrates the mandibular condyles and rami. The beam is angled caudally to project the condyles below the skull base. This projection evaluates fractures and TMJ pathology. Proper positioning prevents elongation. It is frequently tested on ARRT exams.
Position: Mandible SMV The SMV mandible projection demonstrates the mandibular body and rami. It evaluates fractures and deformities. Proper hyperextension is required for diagnostic quality. This projection complements AP and oblique views. It is a recognized ARRT competency.
Position: Mandible PA Axial The PA axial mandible projection demonstrates the mandibular rami and body with reduced superimposition. The beam is angled caudally to open the TMJs. This projection evaluates fractures and alignment. Proper positioning prevents distortion. It is frequently tested on ARRT exams.
Position: TMJ Schuller The Schuller projection demonstrates the TMJ in open and closed positions. The beam is angled caudally to project the joint below the skull base. This projection evaluates dislocation and degenerative changes. Proper positioning ensures diagnostic quality. It is a recognized ARRT competency.
Position: Skull X Table SMV The cross table SMV projection is used when the patient cannot hyperextend the neck. It demonstrates the cranial base and zygomatic arches. Proper beam angulation is essential for diagnostic quality. This projection is used in trauma and ICU settings. It is recognized on ARRT exams.
Position: TMJ Law The Law projection demonstrates the TMJ with minimal superimposition. The head is rotated 15 degrees while the beam is angled caudally. This projection evaluates joint motion and pathology. Proper positioning is essential. It is frequently tested on ARRT exams.
Position: Facial Bones PA Axial The PA axial facial bones projection demonstrates the orbits, nasal bones, and maxilla. The beam is angled caudally to project petrous ridges below the orbits. This projection evaluates fractures and sinus pathology. Proper positioning prevents orbital distortion. It is a standard ARRT competency.
Position: C Spine Swimmers The Swimmers projection demonstrates the cervicothoracic junction. One arm is raised to clear the shoulder. This projection is essential when C7 is not visible on lateral. Proper positioning prevents rotation. It is a core ARRT competency.