Cirrhosis echocardiography or ultrasound: Difference between revisions
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***Splenomegaly | ***Splenomegaly | ||
***Hepatic or portal vein thrombosis | ***Hepatic or portal vein thrombosis | ||
*** '''Ultrasonography:''' routinely used during the evaluation of cirrhosis | |||
****First-line investigation of choice. | |||
****The first radiologic study obtained due to easy availability. | |||
****Provides information about : | |||
*****appearance of the liver | |||
*****blood flow within the portal circulation | |||
****less expensive than other imaging modalities | |||
****No exposure to intravenous contrast or radiation | |||
****Noninvasive | |||
****cheap | |||
****safe | |||
****well tolerated | |||
****widely available | |||
**** Ultrasound, particularly with colour Doppler imaging : <ref name="pmid7718281">{{cite journal |vauthors=Zwiebel WJ |title=Sonographic diagnosis of hepatic vascular disorders |journal=Semin. Ultrasound CT MR |volume=16 |issue=1 |pages=34–48 |year=1995 |pmid=7718281 |doi= |url=}}</ref> | |||
*****measures changes in blood flow in the presence of portal hypertension | |||
*****excludes biliary obstruction in patients who present with jaundice | |||
****Early signs of cirrhosis in B-ultrasonography include: | |||
*****inhomogeneity of the hepatic tissue | |||
*****Irregularity of the hepatic surface | |||
*****enlargement of the caudate lobe | |||
*****Splenomegaly due to portal HTN | |||
****The diagnostic evaluation of cirrhosis with ultrasonography is based on the direct relation between the extent of fibrosis and the ultrasonographically determined degree of liver stiffness. | |||
**** ultrasonography can rule cirrhosis in or out in over 90% of cases , its findings are less than 100% specific because of occasional in -correct measurements and false-positive findings | |||
****Findings:<ref name="pmid25263492">{{cite journal |vauthors=Di Lelio A, Cestari C, Lomazzi A, Beretta L |title=Cirrhosis: diagnosis with sonographic study of the liver surface |journal=Radiology |volume=172 |issue=2 |pages=389–92 |year=1989 |pmid=2526349 |doi=10.1148/radiology.172.2.2526349 |url=}}</ref><ref name="pmid11866220">{{cite journal |vauthors=Martínez-Noguera A, Montserrat E, Torrubia S, Villalba J |title=Doppler in hepatic cirrhosis and chronic hepatitis |journal=Semin. Ultrasound CT MR |volume=23 |issue=1 |pages=19–36 |year=2002 |pmid=11866220 |doi= |url=}}</ref><ref name="pmid12216750">{{cite journal |vauthors=Tchelepi H, Ralls PW, Radin R, Grant E |title=Sonography of diffuse liver disease |journal=J Ultrasound Med |volume=21 |issue=9 |pages=1023–32; quiz 1033–4 |year=2002 |pmid=12216750 |doi= |url=}}</ref><ref name="pmid12202712">{{cite journal |vauthors=Awaya H, Mitchell DG, Kamishima T, Holland G, Ito K, Matsumoto T |title=Cirrhosis: modified caudate-right lobe ratio |journal=Radiology |volume=224 |issue=3 |pages=769–74 |year=2002 |pmid=12202712 |doi=10.1148/radiol.2243011495 |url=}}</ref><ref name="pmid10334257">{{cite journal |vauthors=Albrecht T, Blomley MJ, Cosgrove DO, Taylor-Robinson SD, Jayaram V, Eckersley R, Urbank A, Butler-Barnes J, Patel N |title=Non-invasive diagnosis of hepatic cirrhosis by transit-time analysis of an ultrasound contrast agent |journal=Lancet |volume=353 |issue=9164 |pages=1579–83 |year=1999 |pmid=10334257 |doi=10.1016/S0140-6736(98)06373-9 |url=}}</ref> | |||
*****Advanced cirrhosis: liver may appear small and nodular | |||
*****Surface nodularity and increased echogenicity with irregular appearing areas are consistent with cirrhosis | |||
*****Usually atrophy of the right lobe and hypertrophy of the caudate or left lobes. | |||
****Ultrasonography may also be used as a screening test for hepatocellular carcinoma :nodules on ultrasonography warrants further evaluation | |||
****Findings of portal hypertension: | |||
***** increased diameter of the portal vein | |||
***** presence of collateral veins | |||
***** decreased flow within the portal circulation on Doppler imaging | |||
****Ultrasonography is also useful for detecting splenomegaly, ascites, and portal vein thrombosis. | |||
==References== | ==References== | ||
{{reflist|2}} | {{reflist|2}} | ||
Revision as of 01:47, 13 December 2017
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Risk calculators and risk factors for Cirrhosis echocardiography or ultrasound |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1] Associate Editor(s)-in-Chief: Aarti Narayan, M.B.B.S [2]
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Overview
On ultrasonography, changes in liver contours and nodularity may be evident. The echo texture may appear coarsened along with an increase in echogenecity from focal fatty changes and irregular appearing areas. It can also be used to screen for hepatocellular carcinoma, portal hypertension and Budd-Chiari syndrome.
Echocardiography
- Echocardiograms may be helpful in measuring the ejection fraction, and ischemic and hypokinetic areas of the ventricles in establishing a diagnosis of congestive cardiac failure as a cause of liver cirrhosis.
- Contrast echocardiography.
- Useful diagnostic test for hepatopulmonary syndrome.
- Intravenous microbubbles (> 10 micrometers in diameter) from agitated normal saline that are normally obstructed by pulmonary capillaries (normally <8 to 15 micrometers) rapidly transit the lung and appear in the left atrium of the heart within 7 heart beats.
- Similarly, intravenous technetium-99m–labeled albumin may transit the lungs and appear in the kidney and brain.
Ultrasound
Ultrasound findings are as follows:
- Changes in liver contour
- Nodularity
- Increase in echogenecity from focal fatty infiltration
- Vascular changes:
- Flow across both portal and systemic circulation increases
- Resistive index increases in end stage liver disease
- Vessels appear elongated and tortuous, called "corkscrewing" of the vessels
- Doppler ultrasound may show spontaneous shunts
- Splenomegaly and collaterals from portal hypertension may be noted.
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Transient Elastography
A new type of device, the FibroScan (transient elastography), uses elastic waves to determine liver stiffness which theoretically can be converted into a liver score based on the METAVIR scale. The FibroScan produces an ultrasound image of the liver (from 20-80mm) along with a pressure reading (in kPa). The test is much faster than a biopsy (usually lasts 2.5-5 minutes) and is completely painless. It shows reasonable correlation with the severity of cirrhosis.[1] [2]
Radiologic findings:
- Radiologic studies include:[3]
- Abdominal ultrasound
- Computed tomography scan
- Magnetic resonance imaging
- Evidence of Portal HTN:
- varices
- Ascites
DIAGNOSIS —
- Abdominal imaging (typically ultrasound) helps:
- Evaluate the liver parenchyma
- Detects extrahepatic manifestations of cirrhosis
Laboratory tests:
- AST to platelet ratio index
- FibroTest/FibroSure
Imaging studies:
- Findings on abdominal imaging are viewed in light of other signs of cirrhosis, such as physical examination or laboratory test findings.
- In addition to evaluating the liver, abdominal imaging may reveal:
- Hepatocellular carcinoma
- Extrahepatic findings suggestive of cirrhosis:
- Ascites
- Varices
- Splenomegaly
- Hepatic or portal vein thrombosis
- Ultrasonography: routinely used during the evaluation of cirrhosis
- First-line investigation of choice.
- The first radiologic study obtained due to easy availability.
- Provides information about :
- appearance of the liver
- blood flow within the portal circulation
- Provides information about :
- less expensive than other imaging modalities
- No exposure to intravenous contrast or radiation
- Noninvasive
- cheap
- safe
- well tolerated
- widely available
- Ultrasound, particularly with colour Doppler imaging : [11]
- measures changes in blood flow in the presence of portal hypertension
- excludes biliary obstruction in patients who present with jaundice
- Early signs of cirrhosis in B-ultrasonography include:
- inhomogeneity of the hepatic tissue
- Irregularity of the hepatic surface
- enlargement of the caudate lobe
- Splenomegaly due to portal HTN
- Early signs of cirrhosis in B-ultrasonography include:
- The diagnostic evaluation of cirrhosis with ultrasonography is based on the direct relation between the extent of fibrosis and the ultrasonographically determined degree of liver stiffness.
- ultrasonography can rule cirrhosis in or out in over 90% of cases , its findings are less than 100% specific because of occasional in -correct measurements and false-positive findings
- Ultrasonography may also be used as a screening test for hepatocellular carcinoma :nodules on ultrasonography warrants further evaluation
- Findings of portal hypertension:
- increased diameter of the portal vein
- presence of collateral veins
- decreased flow within the portal circulation on Doppler imaging
- Ultrasonography is also useful for detecting splenomegaly, ascites, and portal vein thrombosis.
References
- ↑ Foucher J, Chanteloup E, Vergniol J; et al. (2006). "Diagnosis of cirrhosis by transient elastography (FibroScan): a prospective study". Gut. 55 (3): 403–8. doi:10.1136/gut.2005.069153. PMID 16020491.
- ↑ Xie L, Chen X, Guo Q, Dong Y, Guang Y, Zhang X (2012). "Real-time elastography for diagnosis of liver fibrosis in chronic hepatitis B". Journal of Ultrasound in Medicine : Official Journal of the American Institute of Ultrasound in Medicine. 31 (7): 1053–60. PMID 22733854. Unknown parameter
|month=ignored (help) - ↑ Udell JA, Wang CS, Tinmouth J, FitzGerald JM, Ayas NT, Simel DL, Schulzer M, Mak E, Yoshida EM (2012). "Does this patient with liver disease have cirrhosis?". JAMA. 307 (8): 832–42. doi:10.1001/jama.2012.186. PMID 22357834.
- ↑ Becker CD, Scheidegger J, Marincek B (1986). "Hepatic vein occlusion: morphologic features on computed tomography and ultrasonography". Gastrointest Radiol. 11 (4): 305–11. PMID 3533689.
- ↑ Di Lelio A, Cestari C, Lomazzi A, Beretta L (1989). "Cirrhosis: diagnosis with sonographic study of the liver surface". Radiology. 172 (2): 389–92. doi:10.1148/radiology.172.2.2526349. PMID 2526349.
- ↑ Sanford NL, Walsh P, Matis C, Baddeley H, Powell LW (1985). "Is ultrasonography useful in the assessment of diffuse parenchymal liver disease?". Gastroenterology. 89 (1): 186–91. PMID 3891495.
- ↑ Giorgio A, Amoroso P, Lettieri G, Fico P, de Stefano G, Finelli L, Scala V, Tarantino L, Pierri P, Pesce G (1986). "Cirrhosis: value of caudate to right lobe ratio in diagnosis with US". Radiology. 161 (2): 443–5. doi:10.1148/radiology.161.2.3532188. PMID 3532188.
- ↑ Simonovský V (1999). "The diagnosis of cirrhosis by high resolution ultrasound of the liver surface". Br J Radiol. 72 (853): 29–34. doi:10.1259/bjr.72.853.10341686. PMID 10341686.
- ↑ Trinchet JC, Chaffaut C, Bourcier V, Degos F, Henrion J, Fontaine H, Roulot D, Mallat A, Hillaire S, Cales P, Ollivier I, Vinel JP, Mathurin P, Bronowicki JP, Vilgrain V, N'Kontchou G, Beaugrand M, Chevret S (2011). "Ultrasonographic surveillance of hepatocellular carcinoma in cirrhosis: a randomized trial comparing 3- and 6-month periodicities". Hepatology. 54 (6): 1987–97. doi:10.1002/hep.24545. PMID 22144108.
- ↑ "EASL-EORTC clinical practice guidelines: management of hepatocellular carcinoma". J. Hepatol. 56 (4): 908–43. 2012. doi:10.1016/j.jhep.2011.12.001. PMID 22424438.
- ↑ Zwiebel WJ (1995). "Sonographic diagnosis of hepatic vascular disorders". Semin. Ultrasound CT MR. 16 (1): 34–48. PMID 7718281.
- ↑ Di Lelio A, Cestari C, Lomazzi A, Beretta L (1989). "Cirrhosis: diagnosis with sonographic study of the liver surface". Radiology. 172 (2): 389–92. doi:10.1148/radiology.172.2.2526349. PMID 2526349.
- ↑ Martínez-Noguera A, Montserrat E, Torrubia S, Villalba J (2002). "Doppler in hepatic cirrhosis and chronic hepatitis". Semin. Ultrasound CT MR. 23 (1): 19–36. PMID 11866220.
- ↑ Tchelepi H, Ralls PW, Radin R, Grant E (2002). "Sonography of diffuse liver disease". J Ultrasound Med. 21 (9): 1023–32, quiz 1033–4. PMID 12216750.
- ↑ Awaya H, Mitchell DG, Kamishima T, Holland G, Ito K, Matsumoto T (2002). "Cirrhosis: modified caudate-right lobe ratio". Radiology. 224 (3): 769–74. doi:10.1148/radiol.2243011495. PMID 12202712.
- ↑ Albrecht T, Blomley MJ, Cosgrove DO, Taylor-Robinson SD, Jayaram V, Eckersley R, Urbank A, Butler-Barnes J, Patel N (1999). "Non-invasive diagnosis of hepatic cirrhosis by transit-time analysis of an ultrasound contrast agent". Lancet. 353 (9164): 1579–83. doi:10.1016/S0140-6736(98)06373-9. PMID 10334257.