Computerized videodefecography versus defecography: do we need radiographs?
CONTEXT AND OBJECTIVE: Defecography has been recognized as a valuable method for evaluating patients with evacuation disorders. It consists of the use of static radiography and fluoroscopy to record different situations within anorectal dynamics. Conventionally, rectal parameters are measured using radiograms. It is rare for fluoroscopy alone to be used. Computer software has been developed with the specific aim of calculating these measurements from digitized videotaped images obtained during fluoroscopy, without the need for radiographic film, thereby developing a computerized videodefecography method. The objective was thus to compare measurements obtained via computerized videodefecography with conventional measurements and to discuss the advantages of the new method. DESIGN AND SETTING: Prospective study at the radiology service of Hospital das Clínicas, Universidade de São Paulo. METHOD: Ten consecutive normal subjects underwent videodefecography. The anorectal angle, anorectal junction, puborectalis muscle length, anal canal length and degree of anal relaxation were obtained via the conventional method (using radiography film) and via computerized videodefecography using the ANGDIST software. Measurement and analysis of these parameters was performed by two independent physicians. RESULTS: Statistical analysis confirmed that the measurements obtained through direct radiography film assessment and using digital image analysis (computerized videodefecography) were equivalent. CONCLUSIONS: Computerized videodefecography is equivalent to the traditional defecography examination. It has the advantage of offering reduced radiation exposure through saving on the use of radiography.
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Associação Paulista de Medicina - APM
2005
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oai:scielo:S1516-318020050003000032006-01-20Computerized videodefecography versus defecography: do we need radiographs?Sobrado,Carlos WalterPires,Carlos Eduardo FonsecaAraújo,Sergio Eduardo AlonsoAmaro,EdsonHabr-Gama,AngelitaKiss,Desidério Roberto Defecography Physiology Anus Radiation Colorectal surgery CONTEXT AND OBJECTIVE: Defecography has been recognized as a valuable method for evaluating patients with evacuation disorders. It consists of the use of static radiography and fluoroscopy to record different situations within anorectal dynamics. Conventionally, rectal parameters are measured using radiograms. It is rare for fluoroscopy alone to be used. Computer software has been developed with the specific aim of calculating these measurements from digitized videotaped images obtained during fluoroscopy, without the need for radiographic film, thereby developing a computerized videodefecography method. The objective was thus to compare measurements obtained via computerized videodefecography with conventional measurements and to discuss the advantages of the new method. DESIGN AND SETTING: Prospective study at the radiology service of Hospital das Clínicas, Universidade de São Paulo. METHOD: Ten consecutive normal subjects underwent videodefecography. The anorectal angle, anorectal junction, puborectalis muscle length, anal canal length and degree of anal relaxation were obtained via the conventional method (using radiography film) and via computerized videodefecography using the ANGDIST software. Measurement and analysis of these parameters was performed by two independent physicians. RESULTS: Statistical analysis confirmed that the measurements obtained through direct radiography film assessment and using digital image analysis (computerized videodefecography) were equivalent. CONCLUSIONS: Computerized videodefecography is equivalent to the traditional defecography examination. It has the advantage of offering reduced radiation exposure through saving on the use of radiography.info:eu-repo/semantics/openAccessAssociação Paulista de Medicina - APMSao Paulo Medical Journal v.123 n.3 20052005-05-01info:eu-repo/semantics/articletext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-31802005000300003en10.1590/S1516-31802005000300003 |
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Sobrado,Carlos Walter Pires,Carlos Eduardo Fonseca Araújo,Sergio Eduardo Alonso Amaro,Edson Habr-Gama,Angelita Kiss,Desidério Roberto |
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Sobrado,Carlos Walter Pires,Carlos Eduardo Fonseca Araújo,Sergio Eduardo Alonso Amaro,Edson Habr-Gama,Angelita Kiss,Desidério Roberto Computerized videodefecography versus defecography: do we need radiographs? |
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Sobrado,Carlos Walter Pires,Carlos Eduardo Fonseca Araújo,Sergio Eduardo Alonso Amaro,Edson Habr-Gama,Angelita Kiss,Desidério Roberto |
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Sobrado,Carlos Walter |
title |
Computerized videodefecography versus defecography: do we need radiographs? |
title_short |
Computerized videodefecography versus defecography: do we need radiographs? |
title_full |
Computerized videodefecography versus defecography: do we need radiographs? |
title_fullStr |
Computerized videodefecography versus defecography: do we need radiographs? |
title_full_unstemmed |
Computerized videodefecography versus defecography: do we need radiographs? |
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computerized videodefecography versus defecography: do we need radiographs? |
description |
CONTEXT AND OBJECTIVE: Defecography has been recognized as a valuable method for evaluating patients with evacuation disorders. It consists of the use of static radiography and fluoroscopy to record different situations within anorectal dynamics. Conventionally, rectal parameters are measured using radiograms. It is rare for fluoroscopy alone to be used. Computer software has been developed with the specific aim of calculating these measurements from digitized videotaped images obtained during fluoroscopy, without the need for radiographic film, thereby developing a computerized videodefecography method. The objective was thus to compare measurements obtained via computerized videodefecography with conventional measurements and to discuss the advantages of the new method. DESIGN AND SETTING: Prospective study at the radiology service of Hospital das Clínicas, Universidade de São Paulo. METHOD: Ten consecutive normal subjects underwent videodefecography. The anorectal angle, anorectal junction, puborectalis muscle length, anal canal length and degree of anal relaxation were obtained via the conventional method (using radiography film) and via computerized videodefecography using the ANGDIST software. Measurement and analysis of these parameters was performed by two independent physicians. RESULTS: Statistical analysis confirmed that the measurements obtained through direct radiography film assessment and using digital image analysis (computerized videodefecography) were equivalent. CONCLUSIONS: Computerized videodefecography is equivalent to the traditional defecography examination. It has the advantage of offering reduced radiation exposure through saving on the use of radiography. |
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Associação Paulista de Medicina - APM |
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2005 |
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http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-31802005000300003 |
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