VIP会员
Two breast cavities, “comparable side” and “diffusion side”, are equipped with general chestboards, horizontal instruments and handles。
Side, four floors:
- Fbg and fat simulations are surrounded by fbg。
- Fbg and adc analogue (25% pvp) are surrounded by fat。
- Fat simulation is surrounded by fbg。
- Fbg simulations are surrounded by fat。
Proliferation side:
- Fbg surrounded adc simulator*: pvp 10% (~1. 5x10° mm's), pvp 14% (~1. 4x10° mm/s), pvp 18% (~1. 3x10° mms), pvp 20% (~1. 2x10° mm? S) pvp 25% (~1. 0)X10-3 mm2/s, pvp 40% (~0. 5x103mm's)
- 4x fat vials。
- 1x pure water reference vials
- Space aberration array: "10 mm hole on 15 mm grid"
- Resolution arrays: 0. 5 mm to 1. 25 mm hole in ismrm diagrams; 1 mm, 2 mm, 4 mm, 6 mm, 8 mm, 010 mm hole。
There are about 6 mm fat layers between the outer casings of the two walls, which are used to suppress fat。
Compatible with qcal-mr qa/qc software。
Calibermri 207 double-wall breast model, calibermri 207 mammogram mri quantitative model used for assessment of mri performance as follows:
B1 and b0 evenness, geometric linearity, gradient rangeSystem centre frequency drift (short duration)
Resolution and snr
T1 survey accuracy
Observed proliferation factor (adc) precision