What is the main advantage of the MR in-bore biopsy?
Accurate biopsy and target location documentation.
After patient preparation and positioning and acquisition of planning sequences, the suspicious lesion in the right apical/midglandular posterolateral zone (PZpl), as well as the questionable finding in the left mid gland anterior transition zone (TZa), are re-identified on the images, marked and locked with the navigation software.
Two biopsy cores were obtained from the lesion in the right posterolateral zone (PZpl) and one biopsy core from the lesion in the left anterior transition zone (TZa), in both cases with a 150cm 18G biopsy needle.
The images also nicely depict some challenges involved with the MR in-bore biopsy procedure. In this one can see a significant displacement of the prostate, while directing the needle guide. This is probably the result of the needle guide being introduced too deep into the rectum.