How Mammography is Performed: Imaging and Positioning
- Brief Overview of Mammography
- Mediolateral Oblique View (MLO)
- Cranio-Caudal View (CC)
- Medio-Lateral View (ML)
The latero-medial view (LM) images the breast from its outer side toward the center of the chest. When physicians want to include as much of the medial portion of the breast, the LM view may be used.
This illustration shows how the LM view is taken, from the outer side of the breast inward.
#1: For the LM view, the mammography technologist will set the tube in a 90-degree projection, ensuring that the correct slide marker is used. She will set the height to the uppermost point of the sternum, positioning the patient with the object table between her breasts.
#2: The technologist will ask the patient to lift her arm and place her hand on the handle while keeping the elbow lifted. She will then ask the patient to place the point of her chin as far forward as possible on the edge of the object table. Grasping her breast from below and drawing it outwards, the technologist will apply compression, pressing the patient toward the table (taking care to ensure that the patientâ€™s arm is not squeezed).
#3: The technologist will ensure that nothing blocks the x-ray field and that the patient is at ease. After instructing the patient to stand absolutely still, the technologist will leave to make the exposure.
Follow the links below for in-depth information on mammography.
- General Information on Mammography
- Screening Mammography
- Diagnostic Mammography
- Benefits of Receiving a Mammogram
- Key Steps for an Optimal Mammogram
- Mammogram Preparation and What to Expect During Mammography
- Find a Mammography Facility
- Mammography on Small Breasts
- Mammogram Interpretation: ACR/BI-RADS System
- Understanding the Mammogram Report
- Frequently Asked Questions About Mammography
- Mammography Quality Standards (MQSA)
- Advances in Mammography and Breast Imaging
- Digital Mammography
- "Mammography Applications," is a publication of Siemens Medical Systems, Siemens-Elema AB, Division SPS: Feb. 1999; Solna, Sweden.
Updated: November 28, 2008