To remain magnetized, a superconducting, high field scanner… To remain magnetized, a superconducting, high field scanner must always be plugged into a power source. Read Details
During an MRI scan, what occurs immediately after a 90° RF p… During an MRI scan, what occurs immediately after a 90° RF pulse is applied? Read Details
How is the signal from hydrogen nuclei typically detected in… How is the signal from hydrogen nuclei typically detected in an MRI system? Read Details
The time varying magnetic field is created by the: The time varying magnetic field is created by the: Read Details
A 1.5-3T scanner must have homogeneity of 100 ppm or better. A 1.5-3T scanner must have homogeneity of 100 ppm or better. Read Details
What is the main advantage of using superconductive magnets… What is the main advantage of using superconductive magnets over resistive magnets in MRI? Read Details
What type of shimming uses small ferromagnetic plates? What type of shimming uses small ferromagnetic plates? Read Details
What is the role of bucking coils in active shielding? What is the role of bucking coils in active shielding? Read Details
The polarity of a gradient is determined by the direction of… The polarity of a gradient is determined by the direction of the current flowing through the coil. Read Details
