Method for visualization of MRI-guided interventional instrument e.g. biopsy needle, involves triggering direct current signal through imaging sequence that is applied only at times in which no disturbance of spatial coding occurs

摘要

The instruments made of material with tissue-equivalent magnetic susceptibility are provided with suitable current paths. The direct current (DC) signal is triggered through the imaging sequence that is applied only at times in which no disturbance of the spatial coding occurs. The strength of the magnetic field associated with the current, is controlled.