Mechatronic system for in-bore MRI-guided insertion of needles to the prostate: An in vivo needle guidance accuracy study.
J Magn Reson Imaging
; 42(1): 48-55, 2015 Jul.
Article
in En
| MEDLINE
| ID: mdl-25195664
ABSTRACT
BACKGROUND:
To present our experiences in initial clinical evaluation of a novel mechatronic system for in-bore guidance of needles to the prostate for MRI-guided prostate interventions in 10 patients. We report accuracy of this device in the context of focal laser ablation therapy for localized prostate cancer.METHODS:
An MRI-compatible needle guidance device was developed for transperineal prostate interventions. Ten patients underwent MRI-guided focal laser ablation therapy with device-mediated laser fiber delivery. We recorded needle guidance error and needle delivery time.RESULTS:
A total of 37 needle insertions were evaluated. Median needle guidance error was 3.5 mm (interquartile range, 2.1-5.4 mm), and median needle delivery time was 9 min (interquartile range, 6.5-12 min).CONCLUSION:
This system provides a reliable method of accurately aligning needle guides for in-bore transperineal needle delivery to the prostate.Key words
Full text:
1
Database:
MEDLINE
Main subject:
Prostatic Neoplasms
/
Catheter Ablation
/
Magnetic Resonance Imaging, Interventional
/
Micro-Electrical-Mechanical Systems
/
Needles
Type of study:
Diagnostic_studies
/
Guideline
Limits:
Aged
/
Humans
/
Male
/
Middle aged
Language:
En
Journal:
J Magn Reson Imaging
Journal subject:
DIAGNOSTICO POR IMAGEM
Year:
2015
Type:
Article
Affiliation country:
Canada