Abstract:
RATIONALE AND OBJECTIVES:The purpose of this study was to develop and test new assistive devices to aid in the performance of safe, easy, and accurate microwave thermocoagulation therapy guided by magnetic resonance (MR) imaging. MATERIALS AND METHODS:An open-configuration MR imager with an optical tracking system for image plane control and a microwave coagulator operating at 2.45 GHz were used. Liver tumors were percutaneously punctured under the guidance of MR images and ablated. Handpiece adapters were then prepared for the optical tracking system. An MR-compatible endoscopic system also was used. Navigation software was installed and customized. These devices were combined to provide near-real-time MR image-guided navigation during thermocoagulation therapy for liver tumors. RESULTS:The handpiece adapters improved the flexibility of approaches for percutaneous puncture of tumors. The MR-compatible endoscope was used as a thoracoscope, and tumors just below the diaphragm were safely and easily punctured through the diaphragm. The customized navigation software displayed near-real-time MR images together with two reformatted images (on the same plane and on a perpendicular plane) from the registered high-resolution three-dimensional data, enabling accurate MR imaging navigation. CONCLUSION:These new assistive devices made it easier to perform safe, easy, and accurate MR-guided thermocoagulation therapy of liver tumors.
journal_name
Acad Radioljournal_title
Academic radiologyauthors
Morikawa S,Inubushi T,Kurumi Y,Naka S,Sato K,Tani T,Haque HA,Tokuda J,Hata Ndoi
10.1016/s1076-6332(03)80043-0keywords:
subject
Has Abstractpub_date
2003-02-01 00:00:00pages
180-8issue
2eissn
1076-6332issn
1878-4046journal_volume
10pub_type
杂志文章abstract:RATIONALE AND OBJECTIVES:Describe new interactive digital teaching methods for medical student education in radiology and evaluate student responses. MATERIALS AND METHODS:Third- and fourth-year medical students on radiology clerkship were taught using either film-based "hot seat" format, digital "hot seat," or didact...
journal_title:Academic radiology
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pub_type: 杂志文章
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更新日期:2009-02-01 00:00:00
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更新日期:2002-07-01 00:00:00
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pub_type: 杂志文章,多中心研究
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journal_title:Academic radiology
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journal_title:Academic radiology
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更新日期:2003-08-01 00:00:00
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journal_title:Academic radiology
pub_type: 杂志文章
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journal_title:Academic radiology
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