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The value of pre-operative magnetic resonance spectroscopy in the assessment of steatohepatitis in patients with colorectal liver metastasis
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- Urdzik, Jozef (author)
- Uppsala universitet,Gastrointestinalkirurgi
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- Bjerner, Tomas (author)
- Uppsala universitet,Enheten för radiologi
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- Wanders, Alkwin (author)
- Uppsala universitet,Molekylär och morfologisk patologi
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- Elsevier BV, 2012
- 2012
- English.
- In: Journal of Hepatology. - : Elsevier BV. - 0168-8278 .- 1600-0641. ; 56:3, s. 640-646
- Journal article (peer-reviewed)
Abstract
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- Background & AimsNeoadjuvant chemotherapy prior to liver surgery for colorectal metastases can cause marked steatosis (⩾33%) and steatohepatitis defined by non-alcoholic fatty liver disease activity score (NAS) as adverse effects on liver parenchyma. The aim of this study was to evaluate the steatosis level prior to liver resection using proton magnetic resonance spectroscopy (1H MRS) and to compare it with digital quantification of steatosis (DQS) and “classical” histopathology.Methods1H MRS at 3T evaluated steatosis in 35 patients with colorectal liver metastasis, planned for liver resection. Non-tumorous liver parenchyma samples were obtained after surgery for classical histopathology and DQS utilising automated software for quantification of histopathological slides using image processing.ResultsClassical histopathology defined marked steatosis in nine patients. Histopathology was less reliable than DQS (interclass correlation coefficient – ICC 0.771) or 1H MRS (ICC 0.722) in steatosis estimation. 1H MRS showed very similar steatosis levels and high reliability compared to DQS (ICC 0.955). Steatohepatitis was observed in seven patients (NAS ⩾4) and 1H MRS was able to predict it with 100% sensitivity and 89% specificity at threshold 10.9%, without knowing lobular inflammation or hepatocyte ballooning. BMI was significantly higher in the groups with marked steatosis and steatohepatitis. Standard blood tests or chemotherapy had no predictive value.Conclusions1H MRS is a reliable non-invasive tool for steatosis assessment, and interestingly, it was able to predict steatohepatitis defined by NAS ⩾4 in patients planned for liver resection of colorectal metastases after neoadjuvant chemotherapy.
Subject headings
- MEDICIN OCH HÄLSOVETENSKAP -- Medicinska och farmaceutiska grundvetenskaper (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Basic Medicine (hsv//eng)
Keyword
- Pathology
- Patologi
Publication and Content Type
- ref (subject category)
- art (subject category)
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- Urdzik, Jozef
- Bjerner, Tomas
- Wanders, Alkwin
- Weis, Jan
- Duraj, Frans
- Haglund, Ulf
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- Norén, Agneta
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