Digital image ratio: A new radiographic method for quantifying changes in alveolar bone .1. Theory and methodology

被引：10

作者：

Jean, A ^{[1
]}

Epelboin, Y ^{[1
]}

Rimsky, A ^{[1
]}

Soyer, A ^{[1
]}

Ouhayoun, JP ^{[1
]}

机构：

[1] UNIV PARIS 07, DEPT PARODONTOL, PARIS, FRANCE

来源：

JOURNAL OF PERIODONTAL RESEARCH | 1996年 / 31卷 / 03期

关键词：

image filtering; image analysis; image ratio; bone radiography; quantitative digital radiography; quantification of bone changes;

D O I：

10.1111/j.1600-0765.1996.tb00479.x

中图分类号：

R78 [口腔科学];

学科分类号：

1003 ;

摘要：

A new method, digital image ratio (DIR), has been developed for directly measuring changes in alveolar bone. The image on the computer monitor represents the relative mass change between two radiographs. Fourier filtering is used to reduce noise artefacts. This method is validated through an experiment with a step wedge. DIR needs only a preliminary calibration of the experimental conditions of operation and avoids tedious calibrations for each measurement as in the case of digital image substraction. Low-voltage X-ray techniques are suggested for long-term quantitative studies of patients to minimize irradiation doses.

引用

页码：161 / 167

页数：7

共 26 条

[1] COMPUTER-ASSISTED DENSITOMETRIC IMAGE-ANALYSIS IN PERIODONTAL RADIOGRAPHY - A METHODOLOGICAL STUDY [J].

BRAGGER, D ;

PASQUALI, L ;

RYLANDER, H ;

CARNES, D ;

KORNMAN, KS .

JOURNAL OF CLINICAL PERIODONTOLOGY, 1988, 15 (01) :27-37

[2] SIGNAL-PROCESSING OF HIGH-RESOLUTION TRANSMISSION ELECTRON-MICROSCOPE IMAGES USING FOURIER-TRANSFORMS [J].

BUSECK, PR ;

EPELBOIN, Y ;

RIMSKY, A .

ACTA CRYSTALLOGRAPHICA A-FOUNDATION AND ADVANCES, 1988, 44 :975-986

[3] USE OF NUCLEAR-EMULSIONS IN X-RAY TOPOGRAPHY - IMPROVEMENT OF THE DEVELOPMENT METHODS [J].

EPELBOIN, Y ;

JEANNEMICHAUD, A ;

ZARKA, A .

JOURNAL OF APPLIED CRYSTALLOGRAPHY, 1979, 12 (APR) :201-204

[4] DIGITAL IMAGE-PROCESSING .1. EVALUATION OF GRAY-LEVEL CORRECTION METHODS IN-VITRO [J].

FOURMOUSIS, I ;

BRAGGER, U ;

BURGIN, W ;

TONETTI, M ;

LANG, NP .

CLINICAL ORAL IMPLANTS RESEARCH, 1994, 5 (01) :37-47

[5]

GONZALEZ RC, 1987, DIGITAL IMAGE PROCES, P61

[6] SUBTRACTION RADIOGRAPHY FOR THE DIAGNOSIS OF PERIODONTAL BONE-LESIONS [J].

GRONDAHL, HG ;

GRONDAHL, K .

ORAL SURGERY ORAL MEDICINE ORAL PATHOLOGY ORAL RADIOLOGY AND ENDODONTOLOGY, 1983, 55 (02) :208-213

[7]

GRONDAHL K, 1984, J CLIN PERIODONTOL, V11, P411

[8] EXAMINER AGREEMENT IN ESTIMATING CHANGES IN PERIODONTAL BONE FROM CONVENTIONAL AND SUBTRACTION RADIOGRAPHS [J].

GRONDAHL, K ;

GRONDAHL, HG ;

WENNSTROM, J ;

HEIJL, L .

JOURNAL OF CLINICAL PERIODONTOLOGY, 1987, 14 (02) :74-79

[9]

Hausmann E, 1985, J Periodontol, V56 Suppl 11S, P4, DOI 10.1902/jop.1985.56.11s.4

[10] PROGRESSION OF UNTREATED PERIODONTITIS AS ASSESSED BY SUBTRACTION RADIOGRAPHY [J].

HAUSMANN, E ;

DUNFORD, R ;

WIKESJO, U ;

CHRISTERSSON, L ;

MCHENRY, K .

JOURNAL OF PERIODONTAL RESEARCH, 1986, 21 (06) :716-721

← 1 2 3 →