In February 2011, FDA approved the first digital breast tomosynthesis (DBT) system, from the manufacturer Hologic, for use in the United States. In August 2014, FDA approved the second DBT system, manufactured by GE. Due to the technological differences between the DBT units, as well as their different FDA-approved Indications for Use (IFU), each manufacturer's DBT system is currently a new mammographic modality. Under MQSA, personnel need to receive 8 hours of initial new-modality training prior to using any new mammographic modality.
DMQS recognizes that there are many features which are common to different DBT systems, so, to clarify:
- Personnel who have received 8 hours of general new-modality training in DBT need to receive training on the unique features of a specific manufacturer's DBT system before beginning to independently use that system.
- Personnel who have received 8 hours of new-modality training on one DBT system need only receive training on the unique features of another system before beginning to independently use that other system.
The training in the unique features of the particular DBT system the personnel will use may be included in the 8 hours of new-modality training, or this training in the unique features may be obtained separately. For documentation of training in the unique features of a particular DBT system, DMQS will accept a course certificate or letter that clearly indicates that the training included the unique features of the particular system, or a signed attestation, using DMQS's recommended form1 or a form with similar elements, to document training in the unique features. If 8 hours of new-modality training in DBT were obtained prior to August 26, 2014, when Hologic was the only DBT system approved for marketing in the United States, we will accept that the training included the unique features of the Hologic system, even if that is not stated explicitly on the training certificate.
We have included the following Frequently Asked Questions (FAQs) regarding DBT, and the answers to those questions, which you should use to answer facility questions regarding training, and also to assist you with any inspections you conduct at facilities using DBT systems.
- How does the MQSA definition of a new mammographic modality apply to DBT?
Due to the technological differences between DBT systems, and differences in their FDA-approved Indications for Use (IFU), each manufacturer's DBT system is currently a new mammographic modality under the MQSA definition. Under MQSA, personnel need to receive 8 hours of initial new-modality training prior to using any new mammographic modality. For clarification of eligible training, please see Questions 2 and 3 below.
- Do personnel with 8 hours of DBT training specific to one manufacturer's system meet the requirements for the initial 8 hours of DBT training for another manufacturer's system?
DMQS recognizes that there are many features which are common to different DBT systems, so personnel who have already received 8 hours of general training in DBT need documentation of training in the unique features of the particular DBT system they will use, while personnel who have received 8 hours of training on any one DBT unit also need documentation of training on the unique features of another DBT system prior to using that other system independently.
- Must the training be provided by the manufacturer?
No. Under MQSA, the new-modality training, including the training on the unique features (technological differences and IFU) of a particular DBT system, does not need to be provided by the manufacturer. Each of the currently approved manufacturers, Hologic and GE, offers formal training on its own system; however, third-party training courses as well as informal training can also provide new mammographic modality training under MQSA. The individual providing the training must be a qualified instructor, defined as an individual whose training and experience adequately prepare him or her to carry out specified training assignments. For example, peer training by a qualified peer who has previously met the training requirement is permitted. DMQS will accept signed attestation, using DMQS's recommended form1 or a form with similar elements, to document that personnel received training in the new unique features of a particular manufacturer's DBT system.
- What is the status of training received prior to this clarification?
Such training counts toward the 8 hours of new-modality training for any approved DBT system, but personnel also need to document that they received training in the unique features of whichever DBT system they will use. For documentation of training in the unique features of a particular manufacturer's DBT system, DMQS will accept a course certificate or letter that clearly indicates that the training included the unique features of a particular system, or a signed attestation, using DMQS's recommended form1 or a form with similar elements, to document training in the unique features. If the 8 hours of new modality training in DBT were obtained between February 18, 2011, and August 26, 2014, when Hologic was the only DBT system approved for marketing in the U.S., DMQS will accept that such training included the unique features of the Hologic system, even if that is not stated explicitly on the training certificate.
- What documentation should MQSA inspectors look for in order to determine that a facility is in compliance with new mammographic modality training?
Personnel need to have acceptable documentation of a total of 8 hours of training in the new mammographic modality, defined as the specific manufacturer's DBT system used by the personnel. The training in the unique features of the particular DBT system the personnel will use may be included in the 8 hours of new-modality training, or this training in the unique features may be obtained separately. Thus, personnel may receive:
- 8 hours of training in general DBT topics, plus training in the unique features of the specific DBT system they will use; or
- 8 hours of training in one specific DBT system they will use; or
- 8 hours of training in one DBT system, plus training in the unique features of another DBT system prior to independent use of that other system
Signed attestation is acceptable for documentation of the training in the unique features of a particular DBT system. Also, if 8 hours of new-modality training in DBT were obtained prior to August 26, 2014, when Hologic was the only DBT system approved for marketing in the United States, we will accept that the training included the unique features of the Hologic system, even if that is not stated explicitly on the training certificate.
- Our GE DBT MEE was performed prior to this clarification. Must it be done again after manufacturer specific training is completed?
MQSA-certified facilities which have already had their certificate extended to include the GE DBT system and whose MEE was performed prior to this clarification can continue using the equipment if they make arrangements to obtain training in the unique features of GE DBT as soon as possible.
- Will a facility be cited if proper training for the GE system is not documented?
Due to the confusion that has arisen since the approval of the second DBT system, DMQS does not intend to cite facilities if they demonstrate that their personnel obtained or are obtaining the required training as soon as possible. Mammography Quality Standards Act and Program | FDA