Gallstone disease other imaging findings: Difference between revisions

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{{Gallstone disease}}
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==Overview==
==Overview==


== Other Imaging Findings ==
There are other imaging modalities that can be useful in diagnosing [[gallstone disease]], these include; [[endoscopic retrograde cholangiopancreatography]] (ERCP), bile [[microscopy]] and oral cholecystography. It should be noted however, that some of these have been replaced by non-invasive, more advanced and less expensive imaging techniques.
*Magnetic Resonance Cholangiopancreatography (MRCP): diagnostic accuracy equivalent to ERCP, but not therapeutic
 
*Cholescintigraphy (HIDA scan): The patient is injected with a small amount of nonharmful radioactive material that is absorbed by the gallbladder, which is then stimulated to contract. The test is used to diagnose abnormal contraction of the gallbladder or obstruction of the bile ducts.
==Other Imaging Findings==
*Endoscopic retrograde cholangiopancreatography (ERCP): ERCP is used to locate and remove stones in the bile ducts. After lightly sedating you, the doctor inserts an endoscope—a long, flexible, lighted tube with a camera—down the throat and through the stomach and into the small intestine. The endoscope is connected to a computer and video monitor. The doctor guides the endoscope and injects a special dye that helps the bile ducts appear better on the monitor. The endoscope helps the doctor locate the affected bile duct and the gallstone. The stone is captured in a tiny basket and removed with the endoscope.
===Endoscopic retrograde cholangiopancreatography===
 
*[[Endoscopic retrograde cholangiopancreatography|Endoscopic retrograde cholangiopancreaticogram]] (ERCP) is an invasive procedure that requires technical expertise and often performed by inserting a tube into the [[common bile duct]] while the patient is [[Sedation|sedated]].<ref name="pmid8538344">{{cite journal |vauthors=Prat F, Amouyal G, Amouyal P, Pelletier G, Fritsch J, Choury AD, Buffet C, Etienne JP |title=Prospective controlled study of endoscopic ultrasonography and endoscopic retrograde cholangiography in patients with suspected common-bileduct lithiasis |journal=Lancet |volume=347 |issue=8994 |pages=75–9 |year=1996 |pmid=8538344 |doi= |url=}}</ref><ref name="pmid25719222">{{cite journal |vauthors=Gurusamy KS, Giljaca V, Takwoingi Y, Higgie D, Poropat G, Štimac D, Davidson BR |title=Endoscopic retrograde cholangiopancreatography versus intraoperative cholangiography for diagnosis of common bile duct stones |journal=Cochrane Database Syst Rev |volume= |issue=2 |pages=CD010339 |year=2015 |pmid=25719222 |doi=10.1002/14651858.CD010339.pub2 |url=}}</ref><ref name="pmid18226685">{{cite journal |vauthors=Tse F, Liu L, Barkun AN, Armstrong D, Moayyedi P |title=EUS: a meta-analysis of test performance in suspected choledocholithiasis |journal=Gastrointest. Endosc. |volume=67 |issue=2 |pages=235–44 |year=2008 |pmid=18226685 |doi=10.1016/j.gie.2007.09.047 |url=}}</ref>
*[[Contrast medium|Contrast material]] is then injected to allow visualization of the [[biliary tree]].
*Traditionally, [[Endoscopic retrograde cholangiopancreatography|ERCP]] was not only [[Diagnosis|diagnostic]] but is also [[Therapy|therapeutic]], so that if a stone was detected, it could be removed in the same sitting.
*The [[Sensitivity (tests)|sensitivity]] of [[Endoscopic retrograde cholangiopancreatography|ERCP]] for [[choledocholithiasis]] is estimated to be 80 - 93%.
*[[ERCP]] has largely been replaced by [[Magnetic resonance cholangiopancreatography|MRCP]] and is now reserved for patients at a high risk of having a common bile duct stone, particularly with [[cholangitis]].
 
 
[[Image:fu.jpg|thumb|center|500px|Gallstones are seen as filling defects in the gallbladder. Source:wikiwand<ref name="urlwww.wikiwand.com">{{cite web |url=http://www.wikiwand.com/en/Common_bile_duct_stone |title=www.wikiwand.com |format= |work= |accessdate=}}</ref> ]]
 
===Oral cholecystography===
 
*Oral cholecystography is rarely done since being replaced by the transabdominal [[ultrasound]].<ref name="pmid7979854">{{cite journal |vauthors=Shea JA, Berlin JA, Escarce JJ, Clarke JR, Kinosian BP, Cabana MD, Tsai WW, Horangic N, Malet PF, Schwartz JS |title=Revised estimates of diagnostic test sensitivity and specificity in suspected biliary tract disease |journal=Arch. Intern. Med. |volume=154 |issue=22 |pages=2573–81 |year=1994 |pmid=7979854 |doi= |url=}}</ref>
*It is still occasionally used prognostically to evaluate [[Gallbladder|gall bladder]] function in obese patients on medical dissolution therapy such as [[Ursodiol|ursodeoxycholic acid]] where a high quality ultrasound cannot be obtained.


==References==
==References==
{{Reflist|2}}
{{Reflist|2}}
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[[Category:Gastroenterology]]
[[Category:Gastroenterology]]
[[Category:Hepatology]]
[[Category:Hepatology]]
[[Category:Surgery]]
[[Category:Surgery]]
[[Category:Primary care]]
[[Category:Disease]]
[[Category:Needs overview]]
[[Category:Radiology]]
 
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Latest revision as of 21:59, 22 December 2020

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Hadeel Maksoud M.D.[2]

Overview

There are other imaging modalities that can be useful in diagnosing gallstone disease, these include; endoscopic retrograde cholangiopancreatography (ERCP), bile microscopy and oral cholecystography. It should be noted however, that some of these have been replaced by non-invasive, more advanced and less expensive imaging techniques.

Other Imaging Findings

Endoscopic retrograde cholangiopancreatography


Gallstones are seen as filling defects in the gallbladder. Source:wikiwand[4]

Oral cholecystography

  • Oral cholecystography is rarely done since being replaced by the transabdominal ultrasound.[5]
  • It is still occasionally used prognostically to evaluate gall bladder function in obese patients on medical dissolution therapy such as ursodeoxycholic acid where a high quality ultrasound cannot be obtained.

References

  1. Prat F, Amouyal G, Amouyal P, Pelletier G, Fritsch J, Choury AD, Buffet C, Etienne JP (1996). "Prospective controlled study of endoscopic ultrasonography and endoscopic retrograde cholangiography in patients with suspected common-bileduct lithiasis". Lancet. 347 (8994): 75–9. PMID 8538344.
  2. Gurusamy KS, Giljaca V, Takwoingi Y, Higgie D, Poropat G, Štimac D, Davidson BR (2015). "Endoscopic retrograde cholangiopancreatography versus intraoperative cholangiography for diagnosis of common bile duct stones". Cochrane Database Syst Rev (2): CD010339. doi:10.1002/14651858.CD010339.pub2. PMID 25719222.
  3. Tse F, Liu L, Barkun AN, Armstrong D, Moayyedi P (2008). "EUS: a meta-analysis of test performance in suspected choledocholithiasis". Gastrointest. Endosc. 67 (2): 235–44. doi:10.1016/j.gie.2007.09.047. PMID 18226685.
  4. "www.wikiwand.com".
  5. Shea JA, Berlin JA, Escarce JJ, Clarke JR, Kinosian BP, Cabana MD, Tsai WW, Horangic N, Malet PF, Schwartz JS (1994). "Revised estimates of diagnostic test sensitivity and specificity in suspected biliary tract disease". Arch. Intern. Med. 154 (22): 2573–81. PMID 7979854.

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