Sonographic "parallel channel" sign of biliary tree enlargement in mild to moderate obstructive jaundice
The criteria for the diagnosis of minimal obstructive jaundice (i.e., bilirubin less than 11.0 mg/100 ml) using sonography have not been established. A reliable diagnosis of obstructive jaundice with mild dilation of the bile ducts can be made by sonography when the "parallel channel" sign...
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| Veröffentlicht in: | American journal of roentgenology (1976) 1978-02, Vol.130 (2), p.279-286 |
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| container_end_page | 286 |
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| container_issue | 2 |
| container_start_page | 279 |
| container_title | American journal of roentgenology (1976) |
| container_volume | 130 |
| creator | Conrad, MR Landay, MJ Janes, JO |
| description | The criteria for the diagnosis of minimal obstructive jaundice (i.e., bilirubin less than 11.0 mg/100 ml) using sonography have not been established. A reliable diagnosis of obstructive jaundice with mild dilation of the bile ducts can be made by sonography when the "parallel channel" sign is seen. This sign is due to the simultaneous imaging of the dilated right or left main hepatic duct and the adjacent contiguous main portal vein branch. A prospective study of 86 patients showed this to be a highly reliable means of differentiating obstructive from nonobstructive jaundice when minimal duct dilation is present. |
| doi_str_mv | 10.2214/ajr.130.2.279 |
| format | Article |
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A reliable diagnosis of obstructive jaundice with mild dilation of the bile ducts can be made by sonography when the "parallel channel" sign is seen. This sign is due to the simultaneous imaging of the dilated right or left main hepatic duct and the adjacent contiguous main portal vein branch. A prospective study of 86 patients showed this to be a highly reliable means of differentiating obstructive from nonobstructive jaundice when minimal duct dilation is present.</description><identifier>ISSN: 0361-803X</identifier><identifier>EISSN: 1546-3141</identifier><identifier>DOI: 10.2214/ajr.130.2.279</identifier><identifier>PMID: 414579</identifier><language>eng</language><publisher>United States: Am Roentgen Ray Soc</publisher><subject>Adult ; Biliary Tract Diseases - diagnosis ; Bilirubin - blood ; Cholestasis - diagnosis ; Dilatation, Pathologic - diagnosis ; Female ; Hepatic Duct, Common ; Humans ; Infant ; Male ; Middle Aged ; Prospective Studies ; Ultrasonography</subject><ispartof>American journal of roentgenology (1976), 1978-02, Vol.130 (2), p.279-286</ispartof><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c384t-95583264fa78eb8891d932a4b22736bd1800b2bfd183430350952c5600d97ecb3</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,4120,27924,27925</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/414579$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Conrad, MR</creatorcontrib><creatorcontrib>Landay, MJ</creatorcontrib><creatorcontrib>Janes, JO</creatorcontrib><title>Sonographic "parallel channel" sign of biliary tree enlargement in mild to moderate obstructive jaundice</title><title>American journal of roentgenology (1976)</title><addtitle>AJR Am J Roentgenol</addtitle><description>The criteria for the diagnosis of minimal obstructive jaundice (i.e., bilirubin less than 11.0 mg/100 ml) using sonography have not been established. A reliable diagnosis of obstructive jaundice with mild dilation of the bile ducts can be made by sonography when the "parallel channel" sign is seen. This sign is due to the simultaneous imaging of the dilated right or left main hepatic duct and the adjacent contiguous main portal vein branch. A prospective study of 86 patients showed this to be a highly reliable means of differentiating obstructive from nonobstructive jaundice when minimal duct dilation is present.</description><subject>Adult</subject><subject>Biliary Tract Diseases - diagnosis</subject><subject>Bilirubin - blood</subject><subject>Cholestasis - diagnosis</subject><subject>Dilatation, Pathologic - diagnosis</subject><subject>Female</subject><subject>Hepatic Duct, Common</subject><subject>Humans</subject><subject>Infant</subject><subject>Male</subject><subject>Middle Aged</subject><subject>Prospective Studies</subject><subject>Ultrasonography</subject><issn>0361-803X</issn><issn>1546-3141</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1978</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNpFkE1r3DAQQEXp1zbtsbceRA65easvW_IxhDYJBHJoC70JSR6vtcjSVrKz5N9XYUNy0ggeb5iH0FdKtoxR8d3s85by-tky2b9BG9qKruFU0LdoQ3hHG0X434_oUyl7QohUvfyA3gsqWtlv0PQrxbTL5jB5h88PJpsQIGA3mRghnOPidxGnEVsfvMmPeMkAGGIweQczxAX7iGcfBrwkPKcBslkAJ1uWvLrFPwDemzUO3sFn9G40ocCX5_cM_fn54_fVTXN3f317dXnXOK7E0vRtqzjrxGikAqtUT4eeMyMsY5J3dqCKEMvsWAcuOOEt6Vvm2o6QoZfgLD9DFyfvIad_K5RFz744CMFESGvRile_bGUFmxPociolw6gP2c_1Rk2Jfgqra1hdw2qma9jKf3sWr3aG4YU-lXzdO_nddPQZdJlrywpTfTweXz3_ATjggWY</recordid><startdate>197802</startdate><enddate>197802</enddate><creator>Conrad, MR</creator><creator>Landay, MJ</creator><creator>Janes, JO</creator><general>Am Roentgen Ray Soc</general><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope></search><sort><creationdate>197802</creationdate><title>Sonographic "parallel channel" sign of biliary tree enlargement in mild to moderate obstructive jaundice</title><author>Conrad, MR ; Landay, MJ ; Janes, JO</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c384t-95583264fa78eb8891d932a4b22736bd1800b2bfd183430350952c5600d97ecb3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1978</creationdate><topic>Adult</topic><topic>Biliary Tract Diseases - diagnosis</topic><topic>Bilirubin - blood</topic><topic>Cholestasis - diagnosis</topic><topic>Dilatation, Pathologic - diagnosis</topic><topic>Female</topic><topic>Hepatic Duct, Common</topic><topic>Humans</topic><topic>Infant</topic><topic>Male</topic><topic>Middle Aged</topic><topic>Prospective Studies</topic><topic>Ultrasonography</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Conrad, MR</creatorcontrib><creatorcontrib>Landay, MJ</creatorcontrib><creatorcontrib>Janes, JO</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>American journal of roentgenology (1976)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Conrad, MR</au><au>Landay, MJ</au><au>Janes, JO</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Sonographic "parallel channel" sign of biliary tree enlargement in mild to moderate obstructive jaundice</atitle><jtitle>American journal of roentgenology (1976)</jtitle><addtitle>AJR Am J Roentgenol</addtitle><date>1978-02</date><risdate>1978</risdate><volume>130</volume><issue>2</issue><spage>279</spage><epage>286</epage><pages>279-286</pages><issn>0361-803X</issn><eissn>1546-3141</eissn><abstract>The criteria for the diagnosis of minimal obstructive jaundice (i.e., bilirubin less than 11.0 mg/100 ml) using sonography have not been established. A reliable diagnosis of obstructive jaundice with mild dilation of the bile ducts can be made by sonography when the "parallel channel" sign is seen. This sign is due to the simultaneous imaging of the dilated right or left main hepatic duct and the adjacent contiguous main portal vein branch. A prospective study of 86 patients showed this to be a highly reliable means of differentiating obstructive from nonobstructive jaundice when minimal duct dilation is present.</abstract><cop>United States</cop><pub>Am Roentgen Ray Soc</pub><pmid>414579</pmid><doi>10.2214/ajr.130.2.279</doi><tpages>8</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0361-803X |
| ispartof | American journal of roentgenology (1976), 1978-02, Vol.130 (2), p.279-286 |
| issn | 0361-803X 1546-3141 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_83832757 |
| source | American Roentgen Ray Society; MEDLINE; Alma/SFX Local Collection |
| subjects | Adult Biliary Tract Diseases - diagnosis Bilirubin - blood Cholestasis - diagnosis Dilatation, Pathologic - diagnosis Female Hepatic Duct, Common Humans Infant Male Middle Aged Prospective Studies Ultrasonography |
| title | Sonographic "parallel channel" sign of biliary tree enlargement in mild to moderate obstructive jaundice |
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