Difference between revisions of "Ultrasonography of cirrhosis"

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:*[[Splenomegaly]]<ref name=Radiopaedia-Cirrhosis/>
 
:*[[Splenomegaly]]<ref name=Radiopaedia-Cirrhosis/>
 
:*Ascites<ref name=Radiopaedia-Cirrhosis/>
 
:*Ascites<ref name=Radiopaedia-Cirrhosis/>
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[[File:Doppler ultrasonography of the portal vein in cirrhosis.jpg|thumb|Doppler ultrasonography of the portal vein over 5 seconds, showing peaks of '''max'''imal velocity, as well as points of '''min'''imal velocity.]]
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*Portal flow pulsatility: An increased portal vein pulsatility is an indicator of cirrhosis, but may also be caused by an increased right atrial pressure.<ref name="IranpourLall2016">{{cite journal|last1=Iranpour|first1=Pooya|last2=Lall|first2=Chandana|last3=Houshyar|first3=Roozbeh|last4=Helmy|first4=Mohammad|last5=Yang|first5=Albert|last6=Choi|first6=Joon-Il|last7=Ward|first7=Garrett|last8=Goodwin|first8=Scott C|title=Altered Doppler flow patterns in cirrhosis patients: an overview|journal=Ultrasonography|volume=35|issue=1|year=2016|pages=3–12|issn=2288-5919|doi=10.14366/usg.15020}}</ref> Portal vein pulsatility can be quantified by pulsatility indices (PI), where an index above a certain cutoff indicates pathology:
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{|class="wikitable"
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|+Pulsatility indices (PI)
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! Index !! Calculation !! Cutoff
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|-
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| Average-based || (Max - Min) / Average<ref name="IranpourLall2016"/> || 0.5<ref name="IranpourLall2016"/>
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|-
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| Max-relative || (Max - Min) / Max<ref name="GoncalvesovaVarga2013">{{cite journal|last1=Goncalvesova|first1=E.|last2=Varga|first2=I.|last3=Tavacova|first3=M.|last4=Lesny|first4=P.|title=Changes of portal vein flow in heart failure patients with liver congestion|journal=European Heart Journal|volume=34|issue=suppl 1|year=2013|pages=P627–P627|issn=0195-668X|doi=10.1093/eurheartj/eht307.P627}}</ref> || 0.5<ref name="GoncalvesovaVarga2013"/><ref name=Dancygier2009>[https://books.google.se/books?id=ZfJN6NS0ZY4C&pg=PA367 Page 367] in: {{cite book|title=Clinical Hepatology: Principles and Practice of Hepatobiliary Diseases|volume=1|author=Henryk Dancygier|publisher=Springer Science & Business Media|year=2009|isbn=9783540938422}}</ref> - 0.54<ref name=Dancygier2009/>
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==Surveillance==
 
==Surveillance==

Revision as of 00:36, 30 November 2018

Author: Mikael Häggström [notes 1]

Planning

Need of investigation

The diagnosis of cirrhosis can be made by physical examination and blood testing alone,[1] but ultrasonography is very helpful as an additional diagnostic tool at least in subtle disease.

Choice of modality

Ultrasonography is the first-line modality of medical imaging in patients with suspected cirrhosis and/or portal hypertension.[2] US is also typically the initial, first-line modality choice for the diagnosis and follow-up of portal hypertension.[3]

Diagnosis

File:Ascites ultrasound 2.JPG
Irregular liver surface and ascites.

Cirrhosis is indicated by:

  • Surface nodularity: (sensitivity 88%, specificity 82-95%)[4]
  • General coarse and heterogeneous texture[4]
  • Segmental hypertrophy or atrophy[4]
  • Relative expansion of the caudate lobe, creating a ratio of caudate width compared to right lobe width of >0.65 (sensitivity 43-84%, specificity 100%)[4]
  • Reduction of the transverse diameter (<30 mm) of the medial segment of the left lobe (segment IV).[4]
  • Fatty change which is variable [4]
  • Signs of portal hypertension[4]
  • Dilated portal vein: >13 mm (sensitivity 42%, specificity 95-100%)[4]
  • Slow portal venous flow on Doppler: <15 cm/sec[4]
  • Reversal or alternating directions of portal venous flow[4]
  • Portal venous thrombosis with or without cavernous transformation[4]
  • Dilated superior mesenteric vein and splenic vein of > 10mm.[4] These should be measured during deep inspiration since it may vary with respiration.[4]
  • Loss of respiratory variation in superior mesenteric vein and splenic vein on spectral Doppler[4]
  • Re-canalisation and hepatofugal paraumbilical venous flow.[4]
  • Dilated porto-systemic collaterals.[4]
  • Portalisation of hepatic vein flow on Doppler[4]
  • Corkscrew appearance of hepatic arteries[4]
  • Increased velocity in hepatic artery[4]
  • Splenomegaly[4]
  • Ascites[4]
File:Doppler ultrasonography of the portal vein in cirrhosis.jpg
Doppler ultrasonography of the portal vein over 5 seconds, showing peaks of maximal velocity, as well as points of minimal velocity.
  • Portal flow pulsatility: An increased portal vein pulsatility is an indicator of cirrhosis, but may also be caused by an increased right atrial pressure.[5] Portal vein pulsatility can be quantified by pulsatility indices (PI), where an index above a certain cutoff indicates pathology:
Pulsatility indices (PI)
Index Calculation Cutoff
Average-based (Max - Min) / Average[5] 0.5[5]
Max-relative (Max - Min) / Max[6] 0.5[6][7] - 0.54[7]

Surveillance

In patients with a diagnosis of cirrhosis, surveillance ultrasonography of hepatocellular cancer (HCC) is indicated, generally every 6 months.[8]

Notes

  1. ↑ For a full list of contributors, see article history. Creators of images are attributed at the image description pages, seen by clicking on the images. See Radlines:Authorship for details.

References

  1. ↑ Udell, JA; Wang, CS; Tinmouth, J; FitzGerald, JM; Ayas, NT; Simel, DL; Schulzer, M; Mak, E; et al. (Feb 22, 2012). "Does this patient with liver disease have cirrhosis? ". JAMA: The Journal of the American Medical Association 307 (8): 832–42. doi:10.1001/jama.2012.186. PMID 22357834. 
  2. ↑ Procopet, Bogdan; Berzigotti, Annalisa (2017). "Diagnosis of cirrhosis and portal hypertension: imaging, non-invasive markers of fibrosis and liver biopsy ". Gastroenterology Report 5 (2): 79–89. doi:10.1093/gastro/gox012. ISSN 2052-0034. 
  3. ↑ Bandali, Murad Feroz; Mirakhur, Anirudh; Lee, Edward Wolfgang; Ferris, Mollie Clarke; Sadler, David James; Gray, Robin Ritchie; Wong, Jason Kam (2017). "Portal hypertension: Imaging of portosystemic collateral pathways and associated image-guided therapy ". World Journal of Gastroenterology 23 (10): 1735. doi:10.3748/wjg.v23.i10.1735. ISSN 1007-9327. 
  4. ↑ 4.00 4.01 4.02 4.03 4.04 4.05 4.06 4.07 4.08 4.09 4.10 4.11 4.12 4.13 4.14 4.15 4.16 4.17 4.18 4.19 4.20 Dr Yuranga Weerakkody, A.Prof Frank Gaillard et al.. Cirrhosis. Radiopaedia. Retrieved on 2018-06-16.
  5. ↑ 5.0 5.1 5.2 Iranpour, Pooya; Lall, Chandana; Houshyar, Roozbeh; Helmy, Mohammad; Yang, Albert; Choi, Joon-Il; Ward, Garrett; Goodwin, Scott C (2016). "Altered Doppler flow patterns in cirrhosis patients: an overview ". Ultrasonography 35 (1): 3–12. doi:10.14366/usg.15020. ISSN 2288-5919. 
  6. ↑ 6.0 6.1 Goncalvesova, E.; Varga, I.; Tavacova, M.; Lesny, P. (2013). "Changes of portal vein flow in heart failure patients with liver congestion ". European Heart Journal 34 (suppl 1): P627–P627. doi:10.1093/eurheartj/eht307.P627. ISSN 0195-668X. 
  7. ↑ 7.0 7.1 Page 367 in: Henryk Dancygier (2009). Clinical Hepatology: Principles and Practice of Hepatobiliary Diseases . 1. Springer Science & Business Media. ISBN 9783540938422. 
  8. ↑ Fateen, Waleed; Ryder, Stephen (2017). "Screening for hepatocellular carcinoma: patient selection and perspectives ". Journal of Hepatocellular Carcinoma Volume 4: 71–79. doi:10.2147/JHC.S105777. ISSN 2253-5969. 
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