Table 2.

Recommendations for insulin pump and CGM usage during common inpatient imaging studies and procedures [2, 25–27]

Type of imaging/procedure	Insulin pump	Dexcom G6	Medtronic Guardian	Abbott Freestyle Libre	Senseonics Eversense
X-ray Bone density Ultrasound	Cover pump by a lead apron	Remove sensor and transmitter; new sensor to be placed after the procedure is complete	Remove sensor and transmitter; new sensor to be placed after the procedure is complete	Cover sensor with a lead shield, or remove if it will be directly exposed to the X-ray beam	Implantable CGM sensor itself is compatible; the transmitter must be removed prior, and can be worn after
Ultrasound	Cover pump by a lead apron	Sensor and transmitter can remain in place	Sensor and transmitter can remain in place	Sensor can remain in place	Implantable CGM sensor itself is compatible; the transmitter must be removed prior, and can be worn after
CT scan	Cover pump by a lead apron	Remove sensor and transmitter; new sensor to be placed after the procedure is complete	Remove sensor and transmitter; new sensor to be placed after the procedure is complete	Remove sensor; new sensor to be placed after the procedure is complete	Implantable CGM sensor itself is compatible; the transmitter must be removed prior, and can be worn after
MRI	Remove pump and infusion set;patient will need new infusion set available to resume pump	Remove sensor and transmitter; new sensor to be placed after the procedure is complete	Remove sensor and transmitter; new sensor to be placed after the procedure is complete	Remove sensor; new sensor to be placed after the procedure is complete	Implantable CGM sensor itself is MRI compatible; the transmitter must be removed prior, and can be worn after
PET scan	Pump needs to be off for at least 1 h prior to the study (no bolus insulin < 4 h prior)	Remove sensor and transmitter; new sensor to be placed after the procedure is complete	Remove sensor and transmitter; new sensor to be placed after the procedure is complete	Remove sensor; new sensor to be placed after the procedure is complete	Implantable CGM sensor itself is compatible; the transmitter must be removed prior, and can be worn after
High-frequency electrical heat (diathermy) treatment	Pump needs to be distal from surgical site; plastic infusion set may be preferred if possible	Remove sensor and transmitter; new sensor to be placed after the procedure is complete	Remove sensor and transmitter; new sensor to be placed after the procedure is complete	Remove sensor; new sensor to be placed after the procedure is complete	Implantable CGM sensor itself is compatible; the transmitter may be removed prior, and can be worn after
Colonoscopy/endoscopy	Pump can remain in place and continue to run	Sensor and transmitter can remain in place	Sensor and transmitter can remain in place	Sensor can remain in place	Implantable CGM sensor itself is compatible; the transmitter may be removed prior, and can be worn after
Cardiac catheterization Pacemaker/AICD placement	Cover pump by a lead apron	Sensor and transmitter can remain in place	Sensor and transmitter can remain in place	Sensor can remain in place	Implantable CGM sensor itself is compatible; the transmitter may be removed prior, and can be worn after