Extrahepatic bile duct measurement by using transabdominal ultrasound in Japanese adults: multi-center prospective study

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• 作者：Takao Itoi ; Terumi Kamisawa ; Hideki Fujii ; Kazuo Inui…
• 关键词：Extrahepatic bile duct ; Ultrasound ; Pancreaticobiliary maljunction
• 刊名：Journal of Gastroenterology
• 出版年：2013
• 出版时间：September 2013
• 年：2013
• 卷：48
• 期：9
• 页码：1045-1050
• 全文大小：321KB
• 参考文献：1. Babbit DP. Congenital choledochal cyst: new etiological concept based on anomalous relationships of the common bile duct and pancreatic bulb. Ann Radiol. 1969;12:231-0.
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  3. Tsuchida A, Itoi T, Aoki T, Koyanagi Y. Carcinogenetic process in gallbladder mucosa with pancreaticobiliary maljunction (Review). Oncol Rep. 2003;10:1693-.
  4. Tashiro S, Imaizumi T, Ohkawa H, et al. Overall report on the registration study of the Japanese study group on pancreaticobiliary maljunction for the past 10?years. In: Koyanagi Y, Aoki T, editors. Pancreaticobiliary maljunction. Tokyo: Igaku Tosho; 2002. p. 401-0.
  5. Aoki T, Tsuchida A, Kasuya K, et al. Is preventive resection of the extrahepatic bile duct necessary in cases of pancreaticobiliary maljunction without dilation of the bile duct? Jpn J Clin Oncol. 2001;31:107-1. CrossRef
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• 作者单位：Takao Itoi (1)
  Terumi Kamisawa (2)
  Hideki Fujii (3)
  Kazuo Inui (4)
  Hiroyuki Maguchi (5)
  Yoshinori Hamada (6)
  Toshiaki Nakano (7)
  Hisami Ando (8)
  Tsugumichi Koshinaga (9)
  Keiko Shibagaki (10)
  Taminori Obayashi (11)
  Yasuhiko Miyazawa (12)
  
  1. Department of Gastroenterology and Hepatology, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan
  2. Department of Internal Medicine, Tokyo Metropolitan Komagome Hospital, Tokyo, Japan
  3. First Department of Surgery, University of Yamanashi, Kofu, Japan
  4. Department of Gastroenterology, Second Teaching Hospital, Fujita Health University, Nagoya, Japan
  5. Center for Gastroenterology, Teine-Keijinkai Hospital, Sapporo, Japan
  6. Department of Pediatric Surgery, Kansai Medical University Hirakata Hospital, Osaka, Japan
  7. University Information Center, Kansai Medical University, Osaka, Japan
  8. Department of Pediatric Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan
  9. Department of Pediatric Surgery, Nihon University School of Medicine, Tokyo, Japan
  10. Health Care Center, Tokyo Medical University, Tokyo, Japan
  11. Department of Laboratory Medicine, Tokyo Metropolitan Komagome Hospital, Tokyo, Japan
  12. Yamanashiken Koseiren Health Care Center, Yamanashi, Japan
  
• ISSN：1435-5922

文摘

Background In adults, less than 10-mm bile duct has idiomatically been recognized as “non-dilated bile duct-though there was no obvious evidence. The aim of this study was to prospectively examine the maximum inner diameter of extrahepatic bile duct (MDEBD) in consecutive adults. Methods Transabdominal ultrasound (US) was performed to measure the MDEBD of 8840 cases (4420 male) in five institutions. The frequency of ultrasound probe ranged from 3.5 to 5?MHz. Results The mean diameter of MDEBD was 4.5?±?1.4?mm (range 1-4?mm). The relationship between the MDEBD and age was shown as follows: MDEBD?=?2.83?+?0.03?×?age. Multiple regression analysis was analyzed between 6 groups and significant α level is 0.008 in this analysis. In all age groups but 20s and 30s, there was statistically significant MDEBD among each age group (p?<?0.0001). Mean, mode value and median MDEBD is increasing according to the age as follows: 20s: 3.9?±?1.0?mm, 30s: 3.9?±?1.2?mm, 40s: 4.3?±?1.2?mm, 50s: 4.6?±?1.3?mm, 60s: 4.9?±?1.4?mm, >70s: 5.3?±?1.6?mm. Conclusion The present study revealed that MDEBD positively correlates with age. Therefore, when we examine the presence of dilation of the bile duct, our calculating formula appears to be suitable for accurate evaluation.