Tag Archives: pelvis

Pelvis MRI Protocol
8
Feb

Overview

Pelvic MRI uses high resolution T2 sequences in multiple planes with diffusion and contrast enhanced imaging for staging and local assessment.

Prostate Specific

Include T2 axial and sagittal diffusion and dynamic contrast sequences following PI RADS recommendations for lesion detection and targeted biopsy planning.

Gynecologic and Rectal

Use thin slice T2 and diffusion for tumor staging and add contrast for vascular assessment and treatment planning.

Positioning and Coils

Use pelvic phased array coils and consider endorectal coils for prostate when higher resolution is required and tolerated.

Pelvis AP
4
Feb

Overview

The AP pelvis radiograph evaluates the pelvic ring hips and proximal femora for fractures and degenerative disease. The patient lies supine or stands with legs internally rotated to profile the femoral necks. This view is a cornerstone for trauma and orthopedic assessment.

Technique

Center the detector to the mid pelvis and ensure equal leg rotation to reduce foreshortening. Use appropriate exposure to penetrate the pelvis and include the iliac crests to proximal femora. Immobilize the patient when trauma is suspected.

Clinical Indications

AP pelvis is indicated for trauma hip pain and preoperative planning. It assesses pelvic ring stability and hip joint space. Additional inlet outlet and Judet views may be required for complex pelvic fractures.

Image Assessment

Evaluate pelvic symmetry sacroiliac joints and hip joint spaces. Inspect for cortical disruption and displacement of the pelvic ring. Document fracture patterns and recommend CT for detailed surgical planning.

Pelvis Outlet View
4
Feb

Overview

The outlet view projects the sacrum and pubic rami to evaluate vertical displacement of the pelvic ring. The beam is angled cephalad to visualize the sacral foramina and pubic symphysis. This projection is useful in trauma to assess vertical shear injuries.

Technique

Angle the tube cephalad typically 40 degrees and center to the pubic symphysis. Keep the patient supine and immobilized to avoid motion. Use appropriate exposure to penetrate pelvic structures.

Clinical Indications

Outlet views are indicated for suspected vertical pelvic displacement and sacral fractures. They complement inlet and AP views for comprehensive pelvic trauma evaluation. CT provides detailed assessment for surgical planning.

Image Assessment

Evaluate sacral alignment pubic symphysis height and vertical displacement of hemipelvis. Inspect for sacral fractures and sacroiliac widening. Document measurements and recommend advanced imaging when indicated.