[MR-guided biopsies with high-resolution ultrafast T2-weighted turbo spin-echo sequence LoLo: initial clinical experience].
OBJECTIVE
The feasibility of the "LoLo"-technique for MR guidance of biopsy procedures was tested.


METHODS
MR-guided biopsies were performed on 10 patients employing a 1.5 T system. The "LoLo"-technique used is a single shot turbo spin echo technique. Only a small field of view is covered in order to yield images with a resolution of 1 mm2 in 600 ms. The orthogonal orientation of the slice selective radio frequency pulses to each other prevents foldover artifacts.


RESULTS
No complications occurred. All biopsy procedures yielded sufficient material to diagnose the underlying disease. The "LoLo"-technique enabled good depiction of the needle tip in all cases. T2-weighted contrast typical for turbo spin echo images was observed. No foldover artifacts were detectable.


CONCLUSIONS
MR-guided biopsies are possible with the "LoLo"technique. Compared to gradient echo sequences T2-weighting and smaller susceptibility artifacts proved to be advantageous.
Bücker
A
A
Klinik für Radiologische Diagnostik, Medizinische Fakultät der Rheinisch-Westfälischen Technischen Hochschule Aachen.
Adam
G
G
Neuerburg
J M
JM
Glowinski
A
A
van Vaals
J J
JJ
Günther
R W
RW
D000328:Adult; D000368:Aged; D016477:Artifacts; D001707:Biopsy, Needle / Q000379:methods*; D005069:Evaluation Studies as Topic; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging / Q000379:methods*; D008297:Male; D008875:Middle Aged