SAMS Questions

Session: Advances in Breast imaging: Digital Breast Tomosynthesis

QC Requirements for the Hologic Dimensions 3D and GE SenoClaire Digital Breast Tomosynthesis Units -Michael S. Glaser, M.S. DABR, Alliance Medical Physics, Alpharetta, Georgia

  1. The HologicSelenia Dimensions 3D Physicist QC protocol includes which of the following test requirements for artifact evaluation:
  1. Test in 2D mode + 3D Tomo mode + Dicom printer
  2. Test in 2D mode only
  3. Test in 3D Tomo mode only
  4. Test in 2D mode using Large focal spot only
  5. Test in 2D mode using Small focal spot only

The correct answer is

A. Test in 2D mode + 3D Tomomode + Dicom printer

Source: HologicSelenia Dimensions QC Manual:MAN-01965, Rev. 008 (July/2014)

  1. The HologicSelenia Dimensions 3D Technologist QC protocol includes which of the following set of comprehensive test requirements:
  1. Weekly artifact evaluation + phantom image
  2. Weekly artifact evaluation + phantom image + semiannual geometry calibration
  3. Weekly SNR + CNR in the 3D Tomo mode
  4. Annual Breast entrance exposure in the 3D Tomo mode
  5. Annual Collimation assessment in the 3D Tomo mode

The correct answer is

B. Weekly artifact evaluation + phantom image + semiannual geometry calibration

Source: HologicSelenia Dimensions QC Manual:MAN-01965, Rev. 008 (July/2014)

  1. When scoring the ACR mammo phantom on both the HologicSelenia Dimensions 3D Tomo and GE SenoClaire3D Tomo, the minimum passing score for the 3DTomo mode is:
  1. 5 fibers, 4 speck groups, 4 masses
  2. 4 fibers, 3 speck groups, 3 masses
  3. 6 fibers, 5 speck groups, 5 masses
  4. 3 fibers, 3 speck groups, 3 masses
  5. 1 fibers, 1 speck groups, 1 masses

The correct answer is

B. 4 fibers, 3 speck groups, 3 masses

Source: HologicSelenia Dimensions QC Manual:MAN-01965, Rev. 008 (July/2014) GE SenoClaire QC Manual: 5415892-4-1-EN, Rev 1, 2013-14

  1. The Average Glandular Dose ( AGD)per view for both the Hologic Dimensions 3D Tomo unit and the GE SenoClaire 3D Tomo unit must meet the following performance criteria:
  1. AGD < 1.5mGy for 2D mode mode
  2. AGD < 1.5mGy for 3D mode mode
  3. AGD < 3.0 mGy for 2D mode + 3D Combo mode
  4. AGD < 6.0 mGy for 2D mode + 3D Combo mode
  5. AGD < 6.0 mGy for 3D mode mode

The correct answer is

C. AGD < 3.0 mGy for 2D mode + 3D mode

Source: HologicSelenia Dimensions QC Manual:MAN-01965, Rev. 008 (July/2014)

GE SenoClaire QC Manual: 5415892-4-1-EN, Rev 1, 2013-14

  1. The GE SenoClaire 3D TomoPhysicist QC protocol includes which of the following annual test requirements:
  1. AOP 2D + 3D SNR test only
  2. Phantom IQ 3D test only
  3. Flatfield 3D test only
  4. AOP 2D + 3D SNR + Phantom IQ 3D
  5. AOP 2D + 3D SNR + Phantom IQ 3D + Flatfield 3D

The correct answer is

E: AOP 2D + 3D SNR + Phantom IQ 3D + Flatfield 3D

Source: GE SenoClaire QC Manual: 5415892-4-1-EN, Rev 1, 2013-14