| Conventional and predicted perceptibility curves for contrast-enhanced direct digital intraoral radiographs. | |
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MedLine Citation:
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PMID: 11681484 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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OBJECTIVES: To construct Perceptibility Curves (PCs) for contrast-enhanced digital intraoral radiographs. METHODS: Radiographs of a test object having holes of increasing depths were exposed using three digital systems, the CDR (Schick Technologies, Long Island, NY, USA), the Dixel (J Morita MFG, Kyoto, Japan) and the Sens-A-Ray (Regam Medical Systems, Sundsvall, Sweden). The radiographs were contrast-enhanced and PCs constructed in the conventional way using 10 observers. Predicted PCs were calculated and compared with observer data. RESULTS: The PCs showed that contrast enhancement is effective for the perception of small contrast details, especially in the low exposure range. Predicted PCs demonstrated excellent agreement with observer data. CONCLUSIONS: Contrast enhancement should be advantageous in digital radiography. The effects of contrast enhancement on PCs may be predicted without previous knowledge of observer performance. |
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Authors:
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K Yoshiura; U Welander; X Q Shi; G Li; T Kawazu; M Tatsumi; K Okamura; W D McDavid; S Kanda |
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Publication Detail:
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Type: Comparative Study; Journal Article |
Journal Detail:
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Title: Dento maxillo facial radiology Volume: 30 ISSN: 0250-832X ISO Abbreviation: Dentomaxillofac Radiol Publication Date: 2001 Jul |
Date Detail:
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Created Date: 2001-10-29 Completed Date: 2001-12-04 Revised Date: 2007-11-15 |
Medline Journal Info:
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Nlm Unique ID: 7609576 Medline TA: Dentomaxillofac Radiol Country: England |
Other Details:
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Languages: eng Pagination: 219-25 Citation Subset: D |
Affiliation:
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Department of Oral and Maxillofacial Radiology, Graduate School of Dental Science, Kyushu University, Fukuoka, Japan. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Algorithms Contrast Media* Forecasting Humans Linear Models Observer Variation Phantoms, Imaging Radiographic Image Enhancement / methods* Radiography, Dental, Digital* / instrumentation, methods Statistics as Topic Surface Properties Visual Perception |
| Chemical | |
Reg. No./Substance:
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0/Contrast Media |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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