Interactive MR-guided biopsies of the thyroid gland: validation of a new method
| Autor: | A. W. Schönenberger, G. K. von Schulthess, I. Bicik, Benjamin J. Romanowski, G. M. Kacl, Jörg F. Debatin, Paul Steiner |
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| Rok vydání: | 1998 |
| Předmět: |
Male
endocrine system medicine.medical_specialty endocrine system diseases Adenoma Thyroid Gland Thyroiditis Stereotaxic Techniques Biopsy medicine Humans Radiology Nuclear Medicine and imaging Ultrasonography Neuroradiology medicine.diagnostic_test business.industry Biopsy Needle Ultrasound Thyroid Interventional radiology General Medicine Middle Aged medicine.disease Magnetic Resonance Imaging Thyroid Diseases medicine.anatomical_structure Feasibility Studies Female Radiology business Mri guided |
| Zdroj: | European Radiology. 8:1173-1178 |
| ISSN: | 1432-1084 0938-7994 |
| DOI: | 10.1007/s003300050529 |
| Popis: | The aim of this study was to demonstrate the clinical feasibility and utility of an interactive MR-guidance system to target and biopsy thyroid lesions, and to compare resolution between ultrasound and interventional MR imaging in the evaluation of thyroid lesions. Twenty thyroid lesions of 18 patients were interactively biopsied using a 0.5-T superconducting open magnet system. Stereotactic localization of the needle and imaging was accomplished using T1-weighted gradient-recalled-echo (GRE) images. Representative cytological material was retrieved in 16 of 20 lesions (benign cystic or colloid goiter: n = 14; one de Quervain's thyroiditis and one follicular neoplasia). Lesions smaller than 1.5 cm detected by ultrasound could not be visualized adequately on GRE images. Lesions smaller than 1.5 cm were successfully biopsied by ultrasound (three colloid and haemorrhagic goiters and one adenoma). Magnetic-resonance-guided interactive biopsies and positioning of non-ferromagnetic needles in the thyroid gland are technically feasible and safe. Compared with high-resolution ultrasound, lesions larger than 1.5 cm can be adequately visualized and biopsied. Magnetic-resonance-guided placement of non-ferromagnetic needles is no substitute for high-resolution ultrasound in clinical work-up of thyroid lesions. |
| Databáze: | OpenAIRE |
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