From paddles, x-ray tubes, collimators to computers, the Hologic Selenia mammography system is made up of multiple parts. Like any other device, the system may need some parts to be replaced after certain years of usage to optimize its performance.

Here is a closer look at the top five Hologic Selenia replacement parts that can help optimize your system’s function and imaging quality.


Selenia Dimensions Mammography System


A mammogram is an indispensable tool when it comes to breast cancer screening. While 3D mammograms are used along with conventional 2D mammograms to get a holistic view of the breasts, this procedure is not without its share of challenges.

While healthcare professionals rely on this test to detect breast lesions or lumps and stage tumors, the challenges with standard mammograms include:

false positive or false negatives,

high recall rate, and

unnecessary biopsies.

For patients, the added concerns include the discomfort and pain they feel due to repeated compression of breasts during 2D and 3D imaging apart from the radiation exposure.

Obtaining high-quality images is the key to improving the accuracy of diagnosis and reducing false positives, recall rates, and biopsies. For patient-centric facilities and providers, the top priority is also to reduce radiation exposure and minimize the patient’s discomfort during the procedure.

The Selenia® Dimensions® mammography system developed by Hologic provides superior image quality and is suitable for various advanced applications.

Its GeniusTM 3D mammography sets new standards in breast cancer detection with:

clearer lesion images,

fewer false-positive recalls

fewer unnecessary biopsies.

This translates to higher business efficiency, more diagnostic confidence, and cost savings for providers. The mammography system is beneficial to women who have higher breast densities that give the system a clear advantage over conventional 2D mammography.

Hologic’s C-view software has further streamlined breast cancer screening by using 3D imaging data to synthesize 2D images. The mammography system:

enhances patient comfort with a rapid scan time of 3.7 seconds and an ergonomic design

minimizes radiation exposure by eliminating the 2D imaging step

provides comparable imaging clarity with 3D mammograms

yields exceptionally sharp images.

offers seamless transition between different imaging modes.

simplifies the operation with sophisticated user tools.

 is proven to find up to 65 percent more breast cancers as compared to 2D

Reduces callbacks by 40 percent in comparison with 2D

FDA approved for women who have dense breasts

Whether one of the parts in the system is not functioning or you are adding the system to your facility, you may be in need of information on the replacement parts.

Top Five Hologic Selenia Replacement Parts

While operating budget on replacement parts, but the need will arise sooner or later. Fortunately, when it does, independent parts suppliers like Block Imaging are ready to get your Selenia up and running again for less.

Detector (Array)

The detector is one of the defining aspects of the Selenia mammography system. It produces an electronic signal to depict the spatial arrangement of x-rays that are transmitted by breasts being screened. Hologic Selenia uses two types of detectors:

Standard cycle detector (RM-ASY-00834, the standard cycle detector) – Standard cycle detectors require 60 seconds between exposures to “reset.”

Fast cycle detector (RM-ASY-01389, the fast cycle detector.) -These detectors need just 11 seconds to reset.

While the detectors typically last between 5 to 9 years, the ones manufactured before 2009 may have a lifespan of 3 years. When looking to replace your detector, ensure that you check your existing detector’s part number with these part numbers:

Type of Detector        Part Number Price Range

Standard cycle       RM-ASY-00834       $20,000 – $40,000

Fast cycle         RM-ASY-01389       $35,000 – $50,000

X-Ray Tube

The x-ray tube produces x-ray photons by converting the electric energy from the x-ray generator. In conventional mammography, the x-ray tube is stationary and captures one image from the top and one from the side of the breast. In 3D mammograms such as the Selenia Dimensions Mammography system, the x-ray tube moves over the breast to capture several images from various angles.

The Selenia Dimensions Mammography system may be fitted with either of these two types of X-ray tubes.

Rhodium Tube (Rh) 2-425-0037 $5,000 – $10,000

Tungsten Tube (W) M-113 T $5,000 – $10,0000

Collimator Assembly

Replacing the collimator assembly may be necessary if the collimator leaves are sluggish or are visible on the edges of the mammogram image. Compared to other parts, the collimator assembly is not expensive.

Part Number: 4-000-0040

Price Range: $2,800 – $3,600 

Red Brick”

As a crucial component of the Selenia Dimensions Mammography system’s imaging change, the ‘Red Brick,’ is the hub of communication between the viewing workstation and the detector.

Part Number: MEL-00596

Price Range: $2,000 – $3,000 


There are two types of computers used in the Selenia Dimensions Mammography system:

Sun Microsystems Sun Blade 1500 RM-ASY-04169 $2,500 – $4,500

Sun Microsystems Ultra 45 CMP-00308 $2,500 – $4,500


Before ordering a replacement part, it is important to check the existing system’s part number.

How Much Does It Cost to Lease a Hologic Selenia?

If your budget does not permit you to purchase the Hologic Selenia outright, you may want to consider leasing the equipment.

The cost of leasing depends on the length of time you want to lease. A 36 months lease can cost $3,925, while for 60 months, the cost comes up to $3,500. The charges include delivery, installation, and 3 or 5-year parts and service coverage.

OEM Support Ended for Selenia with Sun Ultra 45: What’s Next?

If your Hologic Selenia was manufactured between January 2007 and December 2012, you might be concerned that it will no longer be supported after May 3rd, 2019.

You can still get all the parts required for the Selenia system, including Sun Ultra 45 workstation, tubes, detectors, consoles, boards, and paddles.

High-quality replacement parts such as the ones listed below can help you keep your Selenia Dimensions system in top shape:

Selenia M113-T X-ray tube

Selenia RM-ASY-01389 fast cycle detector

Selenia collimator assembly: 4-000-0040