Sökning: onr:"swepub:oai:DiVA.org:liu-134175" > Diffuse Liver Disea...
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000 | 05874naa a2200433 4500 | |
001 | oai:DiVA.org:liu-134175 | |
003 | SwePub | |
008 | 170127s2016 | |||||||||||000 ||eng| | |
024 | 7 | a https://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-1341752 URI |
040 | a (SwePub)liu | |
041 | a engb eng | |
042 | 9 SwePub | |
072 | 7 | a ref2 swepub-contenttype |
072 | 7 | a art2 swepub-publicationtype |
100 | 1 | a Karlsson, Markusu Linköpings universitet,Avdelningen för radiologiska vetenskaper,Centrum för medicinsk bildvetenskap och visualisering, CMIV,Medicinska fakulteten,Region Östergötland, Radiofysikavdelningen US4 aut0 (Swepub:liu)marka46 |
245 | 1 0 | a Diffuse Liver Disease: Measurements of Liver Trace Metal Concentrations and R2* Relaxation Rates |
264 | 1 | b Springer,c 2016 |
338 | a print2 rdacarrier | |
520 | a IntroductionOver the past decade, several methods for measuring of liver iron content (LIC) non-invasively with MRI have been developed and verified. The most promising methods uses relaxometry, measuring either R2- or R2* relaxation rate in the liver1,2. For instance, several studies have shown that there seems to be a linear relationship between R2* and LIC1. However, few of these studies have measured the liver content of other metals, which could also affect the relaxation rates. The goal of this study was to investigate if any trace metals, other than iron could affect the R2* relaxation rate in liver tissue in a patients with diffuse liver disease.Subjects and methods75 patients with suspected diffuse liver disease underwent an MRI examination followed by a liver biopsy the same day. The R2* relaxation rate of the water protons in the liver was measured using an axial 3D multi-slice fat-saturated multi-echo turbo field echo sequence (TE=4.60/9.20/13.80/18.40/23.00ms). Regions of interest (ROI) were drawn and R2* was estimated by fitting the mean signal intensity from the ROIs to a mono-exponential decay model. The biopsies were freeze dried and the concentrations of iron, manganese, copper, cobalt and gadolinium were measured using Inductively Coupled Plasma Sector Field Mass Spectrometry (ICP-SFMS). A multiple linear regression analysis was applied to determine which of the measured metals significantly affected the relaxation rate.ResultsA linear regression with the LIC and R2* showed a reasonable fit (Figure 1). The multiple linear regression analysis (Table 1) showed that iron as well as manganese had a significant affect on R2*. Unlike iron however, the regression coefficient of manganese was negative, meaning that an increasing manganese concentration gave a shorter R2* relaxation rate. The same trend can be seen when plotting the manganese concentration against R2* (Figure 2). | |
650 | 7 | a MEDICIN OCH HÄLSOVETENSKAPx Klinisk medicinx Radiologi och bildbehandling0 (SwePub)302082 hsv//swe |
650 | 7 | a MEDICAL AND HEALTH SCIENCESx Clinical Medicinex Radiology, Nuclear Medicine and Medical Imaging0 (SwePub)302082 hsv//eng |
650 | 7 | a TEKNIK OCH TEKNOLOGIERx Medicinteknikx Medicinsk laboratorie- och mätteknik0 (SwePub)206012 hsv//swe |
650 | 7 | a ENGINEERING AND TECHNOLOGYx Medical Engineeringx Medical Laboratory and Measurements Technologies0 (SwePub)206012 hsv//eng |
650 | 7 | a TEKNIK OCH TEKNOLOGIERx Samhällsbyggnadsteknikx Vattenteknik0 (SwePub)201072 hsv//swe |
650 | 7 | a ENGINEERING AND TECHNOLOGYx Civil Engineeringx Water Engineering0 (SwePub)201072 hsv//eng |
650 | 7 | a MEDICIN OCH HÄLSOVETENSKAPx Medicinska och farmaceutiska grundvetenskaperx Farmaceutiska vetenskaper0 (SwePub)301012 hsv//swe |
650 | 7 | a MEDICAL AND HEALTH SCIENCESx Basic Medicinex Pharmaceutical Sciences0 (SwePub)301012 hsv//eng |
650 | 7 | a TEKNIK OCH TEKNOLOGIERx Materialteknikx Metallurgi och metalliska material0 (SwePub)205062 hsv//swe |
650 | 7 | a ENGINEERING AND TECHNOLOGYx Materials Engineeringx Metallurgy and Metallic Materials0 (SwePub)205062 hsv//eng |
700 | 1 | a Forsgren, Mikaelu Linköpings universitet,Avdelningen för radiologiska vetenskaper,Medicinska fakulteten,Centrum för medicinsk bildvetenskap och visualisering, CMIV,Region Östergötland, Radiofysikavdelningen US4 aut0 (Swepub:liu)mikfo34 |
700 | 1 | a Dahlström, Nilsu Linköpings universitet,Avdelningen för radiologiska vetenskaper,Centrum för medicinsk bildvetenskap och visualisering, CMIV,Medicinska fakulteten,Region Östergötland, Röntgenkliniken i Linköping4 aut0 (Swepub:liu)nilda87 |
700 | 1 | a Dahlqvist Leinhard, Olof,d 1978-u Linköpings universitet,Avdelningen för radiologiska vetenskaper,Centrum för medicinsk bildvetenskap och visualisering, CMIV,Medicinska fakulteten4 aut0 (Swepub:liu)oloda24 |
700 | 1 | a Norén, Bengt,d 1955-u Linköpings universitet,Avdelningen för radiologiska vetenskaper,Medicinska fakulteten,Region Östergötland, Röntgenkliniken i Linköping4 aut0 (Swepub:liu)benno19 |
700 | 1 | a Ekstedt, Mattiasu Linköpings universitet,Avdelningen för kardiovaskulär medicin,Medicinska fakulteten,Region Östergötland, Magtarmmedicinska kliniken4 aut0 (Swepub:liu)matek92 |
700 | 1 | a Kechagias, Stergiosu Linköpings universitet,Avdelningen för kardiovaskulär medicin,Medicinska fakulteten,Region Östergötland, Magtarmmedicinska kliniken4 aut0 (Swepub:liu)steke00 |
700 | 1 | a Lundberg, Peteru Linköpings universitet,Avdelningen för radiologiska vetenskaper,Centrum för medicinsk bildvetenskap och visualisering, CMIV,Medicinska fakulteten,Region Östergötland, Radiofysikavdelningen US4 aut0 (Swepub:liu)petlu11 |
710 | 2 | a Linköpings universitetb Avdelningen för radiologiska vetenskaper4 org |
773 | 0 | t Magnetic Resonance Materials in Physics, Biology and Medicined : Springerg 29:1, s. S395-S395q 29:1<S395-S395x 0968-5243x 1352-8661 |
856 | 4 8 | u https://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-134175 |
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