NEX Mode

Use NEX Mode when the NEX value is greater than or equal to 2 for the following scans:

• LAVA (mode: 3D, Family: Gradient Echo, Pulse: LAVA
• Application: LAVA-Flex

There are two NEX Mode options. Note that the scan time is the same for both options.

• Long term = 1, which acquires data first in an phase loop and then in an excitation loop. This data acquisition technique can reduce ghost-like artifacts induced from patient motion.
• Short term = 0, which acquires data first in an excitation loop and then in a phase loop. This is how data is acquired in previous software versions. Typically use this option if your site has an on-going clinical study with LAVA or LAVA-Flex images and you do not want to change any scan parameters or User CVs that would effect image appearance.

Table 1. Image legend

Number	Description
1	Image acquired with NEX Mode User CV set to 1 or Long term. Note the reduced motion artifact.
2	Image acquired with NEX Mode User CV set to 0 or Short term.