Evaluation of chronic periapical lesions by digital subtraction radiography by using adobe photoshop CS: A technical report

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Data

2007-04-01

Autores

Carvalho, Fabiola B.
Gonçalves, Marcelo [UNESP]
Tanomaru-Filho, Mdrio

Título da Revista

ISSN da Revista

Título de Volume

Editor

Elsevier B.V.

Resumo

The purpose of this study was to describe a new technique by using Adobe Photoshop CS (San Jose, CA) image-analysis software to evaluate the radiographic changes of chronic periapical lesions after root canal treatment by digital subtraction radiography. Thirteen upper anterior human teeth with pulp necrosis and radiographic image of chronic periapical lesion were endodontically treated and radiographed 0, 2, 4, and 6 months after root canal treatment by using a film holder. The radiographic films were automatically developed and digitized. The radiographic images taken 0, 2, 4, and 6 months after root canal therapy were submitted to digital subtraction in pairs (0 and 2 months, 2 and 4 months, and 4 and 6 months) choosing image, calculation, subtract, and new document tools from Adobe Photoshop CS image-analysis software toolbar. The resulting images showed areas of periapical healing in all cases. According to this methodology, the healing or expansion of periapical lesions can be evaluated by means of digital subtraction radiography by using Adobe Photoshop CS software.

Descrição

Palavras-chave

digital subtraction, periapical lesion, radiograph

Como citar

Journal of Endodontics. New York: Elsevier B.V., v. 33, n. 4, p. 493-497, 2007.