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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 | Primary lymphomas of the lung: morphological, immunohistochemical and clinical features显示文摘 | Li G Hansmann ML Zwingers T | 1990 | Histopathology1990，16，6： | 1 |
| 3 | Patent ductus arteriosus of the preterm infant显示文摘 | HAMRICK S E HANSMANN G | 2010 | Pediatrics2010，125，5： | 1 |
| 4 | Patent ductus arteriosus of the preterm in- fant 显示文摘 | Hamrick SE Hansmann G | 2010 | Pediatrics2010，5，： | 1 |
| 5 | Improved codes for space-time trellis-coded modulation显示文摘 | Bauch G Hansmann A | 2000 | IEEE Communications Letters2000，4，1： | 1 |
| 6 | Patent ductus arteriosus of the preterm infant显示文摘 | Hamrick SE Hansmann G | 2010 | Pediatrics2010，125，5： | 1 |
| 7 | An antiprolifcrative BMP-2/PPARgamma/apoE axis in human and murine SMCs and its role in pulmonary hypertension 显示文摘 | Hansmann G de Jesus Perez VA Alastalo TP et at | 2008 | J Clin Invest2008，118，： | 1 |
| 8 | Vergleich verschiedener Stuhltests zur Detektion von Neoplasien des Kolon显示文摘 | T Vogel C Driemel A Hauser A Hansmann S Lange M Jonas G M?slein | 2005 | Dtsch med Wochenschr2005，，14： | 1 |
| 9 | Patent ductus arteriosus of the preterm infant显示文摘 | Hamrick SE Hansmann G | | 0，，05： | 1 |
| 10 | Primary lymphoma of the lung:morphological,immunohistochemical and clinical features显示文摘 | Li G Hansmann ML Zwingers T | 1990 | Histopathology1990，16，： | 1 |
| 11 | Patent ductus arteriosus of the preterm infant显示文摘 | Hamrick SE Hansmann G | 2010 | Pediatrics2010，125，5： | 1 |
| 12 | Improved codes for space-time trellis-coded modulation显示文摘 | BARO S BAUCH G HANSMANN A | 2000 | Communications Letters IEEE2000，4，1： | 1 |
| 13 | Hypothermia: an evol- ving treatment for neonatal hypoxic ischemic encephalopathy 显示文摘 | Gunn AJ Hoehn T Hansmann G | 2008 | Pediatrics2008，121，3： | 1 |
| 14 | Pulmonary arterial hypertension is linked to insulin resistance and reversed by peroxisome proliferator-activated receptor-gamma activation 显示文摘 | Hansmann G Wagner RA Schellong S | 2007 | Circulation2007，115，10： | 1 |
| 15 | Primary lymphoma of the lung :morphological, immunohistochemical and clinical features显示文摘 | Li G Hansmann ML Zwingers T | 1990 | Histopathology1990，16，6： | 1 |
| 16 | Helical hydro-CT for diagnosis and staging of gastric carcinoma显示文摘 | Dux M Ritchter G M Hansmann J | | 0，，6： | 1 |
| 17 | Patent ductus arteriosus of the preterm infant显示文摘 | Hamrick SE Hansmann G | 2010 | Pediatrics2010，125，： | 1 |
| 18 | Identification of common germinal-center B-cell precursors in two pations with both Hodgkin′s disease and nonHodgkin′s disease lymphoma显示文摘 | Brauninger A Hansmann M L Strikler J G | 1999 | N Eng J Med1999，340，3： | 1 |
| 19 | PPARgamma activation: a potential treatment for pulmonary hypertension显示文摘 | Hansmann G Zamanian RT | 2009 | Sci Transl Med2009，1，12： | 1 |
| 20 | Patent ductus arteriosus of the preterm infant显示文摘 | Hamrick SE Hansmann G | 2010 | Pediatrics2010，125，5： | 1 |
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