| The use of deblurring technique for improving the longitudinal resolution in helical CT of the head and neck region. | |
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MedLine Citation:
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PMID: 9258593 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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We evaluated the use of deblurring technique by digital deconvolution for improving the longitudinal resolution in helical CT in a phantom and CT images of head and neck patients. After performing the helical scanning, overlapped axial images were reconstructed at 1/10 of the actual collimation. Then, the deblurring technique was performed. Results revealed that the resolution of slice profiles was improved after deblurring. Further, the longitudinal resolution increased as the strength of the deconvolution increased, at the expense of an increase in helical artifacts. The sharpness and visualization of horizontally running structures were improved in the reconstructed MPR, MPVR, MIP and 3D images in both the phantom and the images of all patients. Also, visualization of the peripheral vessels in CTAs was improved. |
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Authors:
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O Sakai; Y Shen; Y Takata; M Furuse |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Computerized medical imaging and graphics : the official journal of the Computerized Medical Imaging Society Volume: 21 ISSN: 0895-6111 ISO Abbreviation: Comput Med Imaging Graph Publication Date: 1997 May-Jun |
Date Detail:
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Created Date: 1997-09-18 Completed Date: 1997-09-18 Revised Date: 2004-11-17 |
Medline Journal Info:
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Nlm Unique ID: 8806104 Medline TA: Comput Med Imaging Graph Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 153-64 Citation Subset: IM |
Affiliation:
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Department of Radiology, Jichi Medical School and Hospital, Tochigi, Japan. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Angiography
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methods Head / radiography* Humans Neck / radiography* Phantoms, Imaging Programming Languages Radiographic Image Enhancement / methods* Tomography, X-Ray Computed* |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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