Colonoscopy aided by magnetic 3D imaging : assessing the routine use of a stiffening sigmoid overtube to speed up the procedure
There are not enough trained colonoscopists to cope with the present recommended number of examinations required for diagnostic and surveillance purposes. If colorectal cancer screening is to be introduced, endoscopic examination of the large bowel needs to be easier to learn and significantly quick...
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| Veröffentlicht in: | Medical & biological engineering & computing 1999-09, Vol.37 (5), p.605-611 |
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| creator | BELL, G. D ROWLAND, R. S RUTTER, M ABU-SADA, M DOGRAMADZI, S ALLEN, C |
| description | There are not enough trained colonoscopists to cope with the present recommended number of examinations required for diagnostic and surveillance purposes. If colorectal cancer screening is to be introduced, endoscopic examination of the large bowel needs to be easier to learn and significantly quicker to carry out. The 'Bladen system', first described in 1993, is a non-radiological method of visualising the path of the endoscope, using magnetic drive coils under the patient and a chain of sensors along the biopsy channel of the instrument. In 1998, results were published using a novel computer graphics system (the RMR system), in which a much more realistic image of the endoscope could be produced using the stored positional data from the Bladen system. The RMR system has been further refined to allow, for the first time ever, accurate measurement of the effect of the passage of a colonoscope along the bowel on the lengths of different segments of the large intestine. The results obtained in 232 patients undergoing colonoscopy are analysed. In 77 of the patients, a stiffening overtube is used to splint the sigmoid colon once the endoscope is at or beyond the splenic flexure. The mean time taken to pass the colonoscope across the transverse colon is significantly shorter (p < 0.001) when an overtube is used, despite it resulting in significant lengthening of the transverse colon. The routine use of a stiffening overtube can be expected to reduce the total procedure time by between 10 and 20%. |
| doi_str_mv | 10.1007/BF02513355 |
| format | Article |
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D ; ROWLAND, R. S ; RUTTER, M ; ABU-SADA, M ; DOGRAMADZI, S ; ALLEN, C</creator><creatorcontrib>BELL, G. D ; ROWLAND, R. S ; RUTTER, M ; ABU-SADA, M ; DOGRAMADZI, S ; ALLEN, C</creatorcontrib><description>There are not enough trained colonoscopists to cope with the present recommended number of examinations required for diagnostic and surveillance purposes. If colorectal cancer screening is to be introduced, endoscopic examination of the large bowel needs to be easier to learn and significantly quicker to carry out. The 'Bladen system', first described in 1993, is a non-radiological method of visualising the path of the endoscope, using magnetic drive coils under the patient and a chain of sensors along the biopsy channel of the instrument. In 1998, results were published using a novel computer graphics system (the RMR system), in which a much more realistic image of the endoscope could be produced using the stored positional data from the Bladen system. The RMR system has been further refined to allow, for the first time ever, accurate measurement of the effect of the passage of a colonoscope along the bowel on the lengths of different segments of the large intestine. The results obtained in 232 patients undergoing colonoscopy are analysed. In 77 of the patients, a stiffening overtube is used to splint the sigmoid colon once the endoscope is at or beyond the splenic flexure. The mean time taken to pass the colonoscope across the transverse colon is significantly shorter (p < 0.001) when an overtube is used, despite it resulting in significant lengthening of the transverse colon. The routine use of a stiffening overtube can be expected to reduce the total procedure time by between 10 and 20%.</description><identifier>ISSN: 0140-0118</identifier><identifier>EISSN: 1741-0444</identifier><identifier>DOI: 10.1007/BF02513355</identifier><identifier>PMID: 10723898</identifier><language>eng</language><publisher>Heidelberg: Springer</publisher><subject>Adult ; Aged ; Biological and medical sciences ; Colon ; Colonoscopes ; Colonoscopy ; Colonoscopy - methods ; Colorectal cancer ; Colorectal Neoplasms - diagnosis ; Computer aided diagnosis ; Digestive system. 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D</creatorcontrib><creatorcontrib>ROWLAND, R. S</creatorcontrib><creatorcontrib>RUTTER, M</creatorcontrib><creatorcontrib>ABU-SADA, M</creatorcontrib><creatorcontrib>DOGRAMADZI, S</creatorcontrib><creatorcontrib>ALLEN, C</creatorcontrib><title>Colonoscopy aided by magnetic 3D imaging : assessing the routine use of a stiffening sigmoid overtube to speed up the procedure</title><title>Medical & biological engineering & computing</title><addtitle>Med Biol Eng Comput</addtitle><description>There are not enough trained colonoscopists to cope with the present recommended number of examinations required for diagnostic and surveillance purposes. If colorectal cancer screening is to be introduced, endoscopic examination of the large bowel needs to be easier to learn and significantly quicker to carry out. 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The mean time taken to pass the colonoscope across the transverse colon is significantly shorter (p < 0.001) when an overtube is used, despite it resulting in significant lengthening of the transverse colon. The routine use of a stiffening overtube can be expected to reduce the total procedure time by between 10 and 20%.</description><subject>Adult</subject><subject>Aged</subject><subject>Biological and medical sciences</subject><subject>Colon</subject><subject>Colonoscopes</subject><subject>Colonoscopy</subject><subject>Colonoscopy - methods</subject><subject>Colorectal cancer</subject><subject>Colorectal Neoplasms - diagnosis</subject><subject>Computer aided diagnosis</subject><subject>Digestive system. 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D</au><au>ROWLAND, R. S</au><au>RUTTER, M</au><au>ABU-SADA, M</au><au>DOGRAMADZI, S</au><au>ALLEN, C</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Colonoscopy aided by magnetic 3D imaging : assessing the routine use of a stiffening sigmoid overtube to speed up the procedure</atitle><jtitle>Medical & biological engineering & computing</jtitle><addtitle>Med Biol Eng Comput</addtitle><date>1999-09-01</date><risdate>1999</risdate><volume>37</volume><issue>5</issue><spage>605</spage><epage>611</epage><pages>605-611</pages><issn>0140-0118</issn><eissn>1741-0444</eissn><abstract>There are not enough trained colonoscopists to cope with the present recommended number of examinations required for diagnostic and surveillance purposes. If colorectal cancer screening is to be introduced, endoscopic examination of the large bowel needs to be easier to learn and significantly quicker to carry out. 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The mean time taken to pass the colonoscope across the transverse colon is significantly shorter (p < 0.001) when an overtube is used, despite it resulting in significant lengthening of the transverse colon. The routine use of a stiffening overtube can be expected to reduce the total procedure time by between 10 and 20%.</abstract><cop>Heidelberg</cop><pub>Springer</pub><pmid>10723898</pmid><doi>10.1007/BF02513355</doi><tpages>7</tpages></addata></record> |
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| ispartof | Medical & biological engineering & computing, 1999-09, Vol.37 (5), p.605-611 |
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| source | MEDLINE; Springer Nature - Complete Springer Journals |
| subjects | Adult Aged Biological and medical sciences Colon Colonoscopes Colonoscopy Colonoscopy - methods Colorectal cancer Colorectal Neoplasms - diagnosis Computer aided diagnosis Digestive system. Abdomen Endoscopy Female Humans Investigative techniques, diagnostic techniques (general aspects) Magnetic devices Magnetics Male Medical sciences Medical screening Middle Aged Splints Time Factors |
| title | Colonoscopy aided by magnetic 3D imaging : assessing the routine use of a stiffening sigmoid overtube to speed up the procedure |
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