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| 1 | Correlation analysis of dual-energy CT iodine maps with quantitative pulmonary perfusion MRI显示文摘AIM:To correlate dual-energy computed tomography(DECT) pulmonary angiography derived iodine maps with parameter maps of quantitative pulmonary perfusion magnetic resonance imaging(MRI).METHODS:Eighteen patients with pulmonary perfusion defects detected on DECT derived iodine maps were included in this prospective study and additionally underwent time-resolved contrast-enhanced pulmonary MRI [dynamic contrast enhanced(DCE)-MRI].DCE-MRI data were quantitatively analyzed using a pixel-by-pixel deconvolution analysis calculating regional pulmonary blood flow(PBF),pulmonary blood volume(PBV) and mean transit time(MTT) in visually normal lung parenchyma and perfusion defects.Perfusion parameterswere correlated to mean attenuation values of normal lung and perfusion defects on DECT iodine maps.Two readers rated the concordance of perfusion defects in a visual analysis using a 5-point Likert-scale(1 = no correlation,5 = excellent correlation).RESULTS:In visually normal pulmonary tissue mean DECT and MRI values were:22.6 ± 8.3 Hounsfield units(HU);PBF:58.8 ± 36.0 mL/100 mL per minute;PBV:16.6 ± 8.5 mL;MTT:17.1 ± 10.3 s.In areas with restricted perfusion mean DECT and MRI values were:4.0 ± 3.9 HU;PBF:10.3 ± 5.5 mL/100 mL per minute,PBV:5 ± 4 mL,MTT:21.6 ± 14.0 s.The differences between visually normal parenchyma and areas of restricted perfusion were statistically significant for PBF,PBV and DECT(P < 0.0001).No linear correlation was found between MRI perfusion parameters and attenuation values of DECT iodine maps(PBF:r = 0.35,P = 0.15;PBV:r = 0.34,P = 0.16;MTT:r = 0.41,P = 0.08).Visual analysis revealed a moderate correlation between perfusion defects on DECT iodine maps and the parameter maps of DCE-MRI(mean score 3.6,k 0.45).CONCLUSION:There is a moderate visual but not statistically significant correlation between DECT iodine maps and perfusion parameter maps of DCE-MRI. | Jan Hansmann Paul Apfaltrer Frank G Zoellner Thomas Henzler Mathias Meyer Gerald Weisser Stefan O Schoenberg Ulrike I Attenberger | 2013 | World Journal of Radiology2013，5，5： | 6 |
| 2 | Treatment con- cept of chronic subdural haematoma according to an algo rithm using evidence-based medicine-derived key factors: A prospective controlled study显示文摘 | Weigel R Schlickum L Weisser G | 2015 | Br J Neurosurg2015，29，53： | 1 |
| 3 | Standardization of teleradiology using dicom E-mail: recommendations of the German Radiology society显示文摘 | Weisser G Walz M Ruggiero S | 2006 | Eur Radiol2006，16，3： | 1 |
| 4 | Teleradiology applications with DICOM-E-mail 显示文摘 | Weisser G Engehnann U Ruggiero S | 2007 | Eur Radiol2007，17，5： | 1 |
| 5 | Incidence and clin- ical effects of intra-abdominal hypertension in critically ill pa- tients显示文摘 | Vidal M G Ruiz Weisser J Gonzalez F | 2008 | Crit Care Med2008，36，6： | 1 |
| 6 | Treatment concept of chronic subdural haematoma according to an algorithm using evidence-based me- dicine-derived key factors:a prospective controlled study显示文摘 | Weigel R Schlickum L Weisser G | 2015 | Br J Neuro- surg2015，29，4： | 1 |
| 7 | Long-term follow-up of allogeneic HSCT for CML reveals significant improvement in the outcome over the last decade 显示文摘 | Weisser M Ledderose G Jochem Kolb H | 2007 | Ann Hematol2007，86，2： | 1 |
| 8 | The importance of antennae for pea aphid wing induction in the presence of natural enemies显示文摘 | KUNERT G WEISSER W W | 2005 | Bulletin entomological research2005，95，2： | 1 |
| 9 | Characterisation of the water-holding capacity of fresh cheese samples by means of low resolution nuclear magnetic resonance显示文摘 | Ruth Hinrichs Joachim G?tz Michael Noll Alan Wolfschoon Hermann Eibel Horst Weisser | 2004 | Food Research International2004，，7： | 1 |
| 10 | Modem submersible pumps for cryogenic liquids显示文摘 | Weisser G L | 1994 | World Pumps1994，，1： | 1 |
| 11 | Incidence and clinical effects of intra--abdominal hypertension in critically ill patients 显示文摘 | Vidal M G Ruiz Weisser J Gonzalez F | 2008 | Critical Care Medicine2008，36，18： | 1 |
| 12 | Long-term follow-up of allo-geneic HSCT for CML reveals significant imp rovement in the out-come over the last decade 显示文摘 | Weisser M Ledderose G Jochem KH | 2007 | Ann Hematol2007，86，： | 1 |
| 13 | Treatment concept of chronic subdural hanmatoma according to an algorithm using evi- dence-based medicine-derived key factors:A prospective controlled study显示文摘 | Weigel R Schlickum L Weisser G | 2015 | Br J Neurosurg2015，31，： | 1 |
| 14 | Long-term follow-up of allogeneic HSCT for CML reveals significant improvement in the outcome over the last decade 显示文摘 | Weisser M Ledderose G Jochem KH | 2007 | Ann Hematol2007，86，： | 1 |
| 15 | Modem submersible pumps for cryogenic liquids 显示文摘 | Weisser G L | 1994 | World Pumps1994，，1： | 1 |
| 16 | Expression of the Escherichia coli pmi gene,encoding phosphomannoseisomerase in Zymomonas mobilis,leads to utilization of mannoso as a novel growth substrate,which can be used as a selective marker显示文摘 | Weisser P Kramer R Sprenger G A | 1996 | Appl Environ Miembiol1996，62，11： | 1 |
| 17 | Long-term follow-up of allogeneic HSCT for CML reveals significant improvement in the outcome over last decade 显示文摘 | Weisser M Ledderose G Kolb HJ | 2007 | Ann Hematol2007，86，： | 1 |
| 18 | The importance of antermae for pea aphid wing induction in the presence of natural enemies 显示文摘 | KUNERT G WEISSER W W | 2005 | Bull Entomol Res2005，，95： | 1 |
| 19 | Correlation of degree of aortic valve stenosis by Doppler echocardiogram to quantity of calcium in the valve by electron beam tomngraphy显示文摘 | Freyer S Weisser G | 2002 | Am J Cardiol2002，90，： | 1 |
| 20 | Osmoregulation in a New Haloalkalophilic Bacillus from the Wadi Natrum显示文摘 | Weisser J Truper H G | 1985 | Sys Appl Microbiol1985，6，： | 1 |
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