How does a xeromammogram differ from mammogram?

A xeromammogram is a traditional, film-based mammogram technique that uses X-rays to produce images of the breast tissue. On the other hand, digital mammograms are created using computers and digital detectors to capture and display breast images in real time.

Here are the key differences between a xeromammogram and a mammogram:

1. Film vs. Digital:

Xeromammography utilizes traditional film to record the X-ray images of the breast tissue. The X-rays are captured on a film plate placed behind the breast, and the exposed film is then processed and viewed using lightboxes.

Digital mammography, in contrast, uses digital detectors or sensors instead of film. These detectors convert X-rays directly into electrical signals, which are then processed and displayed on computer monitors in real time.

2. Image Quality:

Digital mammography offers improved image quality compared to xeromammography. With digital technology, the captured images can be enhanced, manipulated, and optimized to provide clearer and more detailed views of the breast tissue. Digital mammography also allows for the use of advanced imaging techniques such as breast tomosynthesis (3D mammography), which provides three-dimensional images of the breast.

3. Dose of Radiation:

Both xeromammography and digital mammograms use X-rays, which involve exposure to a low does of ionizing radiation. However, digital mammography may offer a slight advantage in terms of radiation dose. The digital detectors used in digital mammography are more sensitive to X-rays, allowing for the use of lower radiation doses while maintaining image quality.

4. Convenience and Storage:

Xeromammograms are stored as physical films, requiring special handling, careful storage, and maintenance. Digital mammograms, on the other hand, are stored electronically, which makes them easier to manage and retrieve. This also allows for efficient sharing and transmission of images for consultations or second opinions.

5. Cost and Availability:

The cost of xeromammography and digital mammography may vary depending on several factors such as the location, facility, and reimbursement policies. In general, digital mammography has become more widely adopted due to its advantages in image quality and convenience, making it more readily available than xeromammography.

It's worth noting that both xeromammography and digital mammography are effective tools for breast cancer screening. However, due to the advancements in technology and image quality, digital mammography is the preferred method in many healthcare settings.