Full-Body Eligible - During The Mri Scan - Medtronic 97702 Instrucciones De Uso

▪
Avoid using the body receive coil if possible. Use a local receive-only coil instead.
▪
Use imaging sequences with stronger gradients for both slice and read encoding
directions. Use higher bandwidth for both radio-frequency pulse and data sampling.
▪
Choose an orientation for the read-out axis that minimizes the appearance of in-plane
distortion.
▪
Use spin echo or gradient echo MR imaging sequences with a relatively high data
sampling bandwidth.
▪
Use a shorter echo time for gradient echo technique, whenever possible.
▪
Be aware that the actual imaging slice shape can be curved in space due to the
presence of the field disturbance of the neurostimulator.
▪
Identify the location of the implant in the patient, and when possible, orient all imaging
slices away from the implanted neurostimulator.
w
Warnings:
▪
If the MRI targeted image area is near the neurostimulator, it may be necessary to
move the neurostimulator to obtain an image, or use alternate imaging techniques.
MRI images may be severely distorted or image target areas can be completely
blocked from view near the implanted neurostimulation system components,
especially near the neurostimulator.
▪
If the neurostimulator is removed, remove the entire neurostimulation system. Do
not remove the neurostimulator and leave the lead system implanted as this can
result in higher than expected lead heating. Excessive heating can result in tissue
damage or serious patient injury.
Full-body eligible – During the MRI scan
Keep track of active scan
time
Monitor the patient
Patient comfort
16 English MRI guidelines for Medtronic neurostimulation systems for chronic pain
Table 4. Full-body eligible – During the MRI scan
Keep track that the active scan time is within a 90-minute
window. See "Active scan time limits" in Table 1.
Monitor the patient both visually and audibly. Check the patient
between each imaging sequence. Discontinue the MRI
examination immediately if the patient is unable to respond to
questions or reports any problems.
Heating may be felt at the neurostimulator site during the MRI
scan. If the patient is uncomfortable, consider applying an ice
pack or cold compress to the location. If the heating causes the
patient considerable discomfort, stop the MRI scan.