Position: Lumbar Spine AP The AP lumbar spine projection demonstrates vertebral bodies and disk spaces. Proper centering ensures visualization of L1 through L5. This projection evaluates fractures, degenerative changes, and alignment. It is a core ARRT competency. It complements oblique and lateral views.
Position: Patella Sunrise The sunrise projection demonstrates the patellofemoral joint. The knee is flexed while the beam is angled to visualize the patella. This projection evaluates subluxation and cartilage defects. Proper positioning prevents distortion. It is a recognized ARRT special projection.
Position: Lumbar Spine Lateral The lateral lumbar spine projection demonstrates vertebral alignment and intervertebral foramina. It is essential for evaluating spondylolisthesis. Proper positioning prevents rotation. This projection is heavily tested on ARRT exams. It is foundational for spine imaging.
Position: Patella Lateral The lateral patella projection demonstrates the patella in profile. It evaluates fractures and alignment. Proper positioning prevents rotation. This projection complements the sunrise view. It is a core ARRT requirement.
Position: Lumbar Spine Oblique Oblique lumbar projections demonstrate the pars interarticularis. The Scottie dog appearance helps identify defects. This projection evaluates spondylolysis. Proper rotation is essential for accurate visualization. It is a standard ARRT competency.
Position: Sacrum AP Axial The AP axial sacrum projection demonstrates the sacrum free of foreshortening. The beam is angled cephalad to open sacral foramina. This projection evaluates fractures and congenital anomalies. Proper centering ensures full sacral visualization. It is a core ARRT requirement.
Position: Coccyx AP The AP coccyx projection demonstrates the coccyx with minimal superimposition. The beam is angled caudally to reduce overlap. This projection evaluates fractures and dislocations. Proper centering ensures diagnostic quality. It is a standard ARRT competency.
Position: Coccyx Lateral The lateral coccyx projection demonstrates the coccyx in profile. It is essential for evaluating trauma. Proper positioning prevents superimposition of the femur. This projection complements the AP view. It is frequently tested on ARRT exams.
Position: SI Joints AP Axial The AP axial SI joint projection demonstrates the sacroiliac joints symmetrically. The beam is angled cephalad to open joint spaces. This projection evaluates inflammation and degenerative changes. Proper positioning prevents pelvic rotation. It is a core ARRT competency.
Position: SI Joints Oblique Oblique SI joint projections rotate the patient 25 to 30 degrees. This view demonstrates the elevated SI joint. It is essential for evaluating joint pathology. Proper rotation ensures accurate visualization. It is a recognized ARRT special projection.