CT guided non-focal renal biopsy for assessment of intrinsic renal pathology.

Ultrasound is most commonly used as truly dynamic and non-radiation required.

In larger patients CT guidance is required.

Note the angulated approach from the lateral position to prevent traversing paraspinal muscle.

As two cores are required, a co-axial needle - usually 18G - is used.

The other cortex is particularly targeted to acquire a large number of glomeruli.