Abstract:
PURPOSE:To develop an ultrasound (US) extended-field-of-view scanning technique that combines the convenience of a real-time scanner with the spatial advantages of a static B-mode scanner and provides a panoramic image in real time without position sensors or cumbersome articulated arms. MATERIALS AND METHODS:An image-registration-based position-sensing technique was used to track probe motion and reconstruct a large composite image during real-time scanning. The probe motion (translation and rotation) was estimated by combining multiple local motion vectors. This computationally intensive process required a special programmable image processor. RESULTS:Large, resolution-preserved composite images up to 60 cm long were obtained. Measurement accuracy as determined with phantom experiments was better than 5%. The method could be applied to any probe or image format. CONCLUSION:In addition to providing a panoramic image to expand diagnostic capabilities, extended-field-of-view US provides a more easily interpretable image and is an effective cross-specialty communication tool.
journal_name
Radiologyjournal_title
Radiologyauthors
Weng L,Tirumalai AP,Lowery CM,Nock LF,Gustafson DE,Von Behren PL,Kim JHdoi
10.1148/radiology.203.3.9169720subject
Has Abstractpub_date
1997-06-01 00:00:00pages
877-80issue
3eissn
0033-8419issn
1527-1315journal_volume
203pub_type
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