Document Details

Document Type : Article In Journal 
Document Title :
EFFECT OF IMAGE ENHANCEMENT AND COLOUR CONVERSIONON LESION DETECT ABILITY FROM CONVENTIONAL
EFFECT OF IMAGE ENHANCEMENT AND COLOUR CONVERSIONON LESION DETECT ABILITY FROM CONVENTIONAL
 
Document Language : English 
Abstract : Validity of image enhancement and colour conversion on bone lesion detectability from periapical radiographs was investigated. A comparison was made between conventional and digitized radiographs before and after contrast enhancement and colour conversion from one side and digitized non-enhanced and contrast enhanced, colour converted radiographs from the other side. A total of 150 defects were made in 10 well preserved, dry human mandibles with 15 defects randomly distributed at the premolar-molar region of each mandible. Defects were made of different sizes using different sized round burs. Each site was radiographed 10 times at a different exposure time ranging from 0.10 to 1.0 second to obtain radiographs of varying densities. The radiographs were developed and scanned on a flat-bed full colour scanner with automatic transparency adapter. The digitized radiographs were loaded into computer memory, enhanced and colour converted using Saudi enhancer program. The images were displayed on a flat 15" colour monitor. Conventional radiographs and digitized images before and after enhancement and colour conversion were examined by ten trained observers to detect the number of defects in each radiograph. The results showed that contrast enhanced and colour converted digitized radiographs significantly improved lesion detectability compared to conventional and digitized non-enhanced radiographs. It was concluded that the application of digital radiography with contrast enhancement is a sensitive method for detecting subtle tissue changes, with a possibility of improving existing images of low quality instead of taking another exposure. 
ISSN : 6786-1110 
Journal Name : CAIRO DENTAL JOURNAL 
Volume : 13 
Issue Number : 2 
Publishing Year : 1417 AH
1997 AD 
Article Type : Article 
Added Date : Wednesday, October 28, 2009 

Researchers

Researcher Name (Arabic)Researcher Name (English)Researcher TypeDr GradeEmail
منى عبدالرزاقAbdulrazak, mona InvestigatorDoctorate 

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