Navigation Links
Noninvasive diagnostics may offer alternative to liver biopsy for assessing liver fibrosis
Date:6/2/2011

Patients who are evaluated for liver diseases such as hepatitis C (HCV) are typically recommended for liver biopsy to determine the extent of disease progression. For patients who question whether less invasive testing is available, clinicians now have alternatives options to consider. Elastography and serum markers are two such diagnostic options reviewed in an editorial published in the June issue of Hepatology, a journal of the American Association for the Study of Liver Diseases.

Epidemiological studies report that approximately 150,000 individuals in the U.S. are diagnosed with chronic liver disease each year, and nearly 20% of these cases have cirrhosis at initial presentation. Complications from cirrhosis are determined by the extent and progression of fibrosis or scaring of the liver. Liver fibrosis, however, is not a linear process, but one that fluctuates with the influences of age, sex, race, alcohol exposure and obesity.

Liver biopsy remains the gold standard for determining activity and stage of fibrosis. However, this procedure has inherent limitations that include risk of pain or bleeding, inaccurate staging from sampling error, and variability of biopsy interpretation. With the increase in availability of sophisticated laboratory blood testing, the use of diagnostic liver biopsy is on the decline. "The drawbacks to liver biopsy have prompted researchers to investigate alternative, noninvasive markers for determining the severity of liver disease," said Dr. Jayant Talwalkar of the Mayo Clinic in Rochester, MN and editorial co-author.

Noninvasive screening with serum markers, or indicators in the blood, can identify patients at risk for liver fibrosis. Fibrotest, an indirect serum marker panel, is the most widely used and validated serum marker panel used worldwide. A number of studies have confirmed this panel to be reliable in detecting stage 4 fibrosis (cirrhosis) in patients with chronic HCV. Additional studies are underway to analyze its viability in hepatitis B, alcoholic liver disease, and nonalcoholic fatty liver disease.

Imaging techniques such as ultrasound-based transient elastography (TE) and magnetic resonance elastography (MRE) are noninvasive procedures that measure liver stiffness. Prior studies have found TE to be up to 90% accurate in diagnosing cirrhosis, and 70%-80% accurate in detecting stage 2 to stage 4 fibrosis. Evaluations of MRE have shown up to 85% accuracy for detecting intermediate to severe fibrosis (F2-F4). Currently only MRE is approved for use in the U.S.

"Noninvasive diagnostics are more advantageous to the patient as there are no serious side effects and they may be more cost effective when compared to liver biopsy although this remains to be determined," Dr. Talwalkar concluded. "Fibrotest or elastography imaging are helpful to confirm cirrhosis or minimal to no fibrosis. Liver biopsy may still be necessary to determine stage of fibrosis in those patients where noninvasive techniques were indeterminate."


'/>"/>

Contact: Dawn Peters
healthnews@wiley.com
781-388-8408
Wiley-Blackwell
Source:Eurekalert

Related medicine news :

1. Mayo Clinic reports new findings on noninvasive test for pancreatic cancer
2. GEN reports on novel noninvasive tests for early cancer detection
3. Noninvasive extenders are better than surgery for men who want a longer penis
4. Noninvasive Test May Identify Down Syndrome Early On
5. Noninvasive test for trisomy 21 closer at hand
6. Noninvasive Glaucoma Test Might Speed Up Detection
7. Noninvasive brain stimulation helps improve motor function in stroke patients
8. Noninvasive Test for Colon Cancer Shows Promise in Early Trial
9. Prediction tool helps estimate local recurrence in patients with noninvasive breast cancer
10. Noninvasive combination technique may reduce number of breast biopsies
11. New research shows innovative respiratory stress test can quickly detect significant coronary artery disease in a noninvasive setting
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:2/12/2016)... (PRWEB) , ... February 12, 2016 , ... AssureVest Insurance ... areas, is initiating a charity drive that will raise funds earmarked to purchase computers ... C. Tayloe Elementary School. , “My school is in a low-income area and has ...
(Date:2/12/2016)... (PRWEB) , ... February 12, 2016 , ... The Jones ... other communities across eastern Texas, is launching a cooperative charity drive with the Tarrant ... , Serving more than 50,000 individuals and families in need, the Tarrant County Food ...
(Date:2/12/2016)... ... ... Vail knee specialist Robert LaPrade, MD, PhD was named one of ... of physicians establishing, leading and partnering with ambulatory surgery centers across the United States. ... also known as an ASC, is a modern health care facility focused on providing ...
(Date:2/12/2016)... , ... February 12, 2016 , ... Erlanger Agency has ... greater Columbus, OH area. The latest campaign focuses on the fight against breast cancer, ... are now being accepted here . , Carmen is a loving single mother ...
(Date:2/12/2016)... ... February 12, 2016 , ... Young Asset Protection, a ... beginning of the latest charity campaign in their community enrichment program. Art Expression ... this worthy cause are currently being accepted at: http://artexpressioninc.org/ . , Art ...
Breaking Medicine News(10 mins):
(Date:2/11/2016)... 11, 2016  Kindred Biosciences, Inc. (NASDAQ: KIN ... the lives of pets, today announced the submission to ... Animal Drug Application (NADA) for Zimeta™ (dipyrone injection, KIND-012).  ... of Zimeta for the control of pyrexia (fever) in ... --> --> The Chemistry, Manufacturing, ...
(Date:2/11/2016)... 2016 Potrero Medical, Inc., the developer of the ... appointment of George M. Rapier, III , MD, to ... , WellMed is one of the nation,s largest physician ... members in Texas and ... his own internal medicine practice, he has been instrumental to ...
(Date:2/11/2016)... 11, 2016  AfterPill.com is reporting that this week,s ... for all women who are at risk of unintended ... year and raises the risks of unprotected sex in ... According to the Guttmacher Institute, there are 43 ... child-bearing age, who have sex without the intention of ...
Breaking Medicine Technology: