Non-Invasive Evaluation of Fibrosis and Steatosis in Chronic Hepatopathy
Evaluation of Fibrosis and Steatosis in Patients With Chronic Hepatopathy: Non-invasive Imaging and Serum Markers vs. Liver Biopsy
調査の概要
詳細な説明
For diagnosis, staging and grading of chronic liver disease, liver biopsy is the gold standard to date. Unfortunately, being an invasive diagnostic method, liver biopsy has a significant morbidity. Furthermore, due to the small sample size, sampling error (over- or underestimating severity of liver disease) is a serious problem in diagnostic of chronic liver disease.
The objective of this study is to evaluate non-invasive diagnostic methods (MRI, elastography, ultrasound and serum parameters) in comparison to the gold standard to establish criteria for diagnostic in liver disease and reduce the necessary amount of liver biopsies in the future and allow regular follow up.
研究の種類
入学 (予想される)
連絡先と場所
研究場所
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Aachen、ドイツ、52074
- Department of Medicine III, University Hospital Aachen (RWTH)
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参加基準
適格基準
就学可能な年齢
健康ボランティアの受け入れ
受講資格のある性別
サンプリング方法
調査対象母集団
説明
Inclusion Criteria:
- Chronic hepatopathy and necessity of liver biopsy
Exclusion Criteria:
- metal implants preventing MRI
研究計画
研究はどのように設計されていますか?
デザインの詳細
コホートと介入
グループ/コホート |
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慢性肝疾患
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この研究は何を測定していますか?
主要な結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
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Quality of staging fibrosis (METAVIR scoring system) with a combination of MRT and blood serum markers compared to liver biopsy (gold standard)
時間枠:singular evaluation at the time of liver biopsy (completion of measurements within 2 days before or after liver biopsy)
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Receiver operating characteristic analysis is performed (Area-under-the-ROC-curve) to evaluate non-invasive fibrosis assessment in comparison to the liver biopsy with SPSS-Software, p < 0,05 is regarded as statistically significant.
METAVIR is a 5-point scale used in staging fibrosis (0 = no fibrosis, 4 = high grade fibrosis, cirrhosis).
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singular evaluation at the time of liver biopsy (completion of measurements within 2 days before or after liver biopsy)
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二次結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
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Quality of staging steatosis (four-graded scale, percentage) with a combination of MRT and blood serum markers compared to liver biopsy (gold standard)
時間枠:singular evaluation at the time of liver biopsy (completion of measurements within 2 days before or after liver biopsy)
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Receiver operating characteristic analysis is performed (Area-under-the-ROC-curve) to evaluate non-invasive steatosis assessment (MR-spectroscopy, ultrasound)in comparison to the liver biopsy with SPSS-Software, p < 0,05 is regarded as statistically significant.
The degree of steatosis in liver biopsies and ultrasound is assessed by a morphological semiquantitative approach: 0: none, 1: slight, 2: moderate and 3: severe.
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singular evaluation at the time of liver biopsy (completion of measurements within 2 days before or after liver biopsy)
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協力者と研究者
スポンサー
捜査官
- 主任研究者:Holger H Lutz, M.D.、Department of Medicine III, University Hospital RTWH University of Aachen
出版物と役立つリンク
一般刊行物
- Faria SC, Ganesan K, Mwangi I, Shiehmorteza M, Viamonte B, Mazhar S, Peterson M, Kono Y, Santillan C, Casola G, Sirlin CB. MR imaging of liver fibrosis: current state of the art. Radiographics. 2009 Oct;29(6):1615-35. doi: 10.1148/rg.296095512.
- Bonekamp S, Kamel I, Solga S, Clark J. Can imaging modalities diagnose and stage hepatic fibrosis and cirrhosis accurately? J Hepatol. 2009 Jan;50(1):17-35. doi: 10.1016/j.jhep.2008.10.016. Epub 2008 Nov 8.
- Castera L. Transient elastography and other noninvasive tests to assess hepatic fibrosis in patients with viral hepatitis. J Viral Hepat. 2009 May;16(5):300-14. doi: 10.1111/j.1365-2893.2009.01087.x. Epub 2009 Feb 25.
研究記録日
主要日程の研究
研究開始
一次修了 (実際)
研究の完了 (予想される)
試験登録日
最初に提出
QC基準を満たした最初の提出物
最初の投稿 (見積もり)
学習記録の更新
投稿された最後の更新 (見積もり)
QC基準を満たした最後の更新が送信されました
最終確認日
詳しくは
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