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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 | Endometrial receptivity in an in vitro fertilization program as assessed by spiral artery blood flow, endometrial thickness, endometrial volume, and uterine artery blood flow显示文摘 | Ralf L Schild Christine Knobloch Christoph Dorn Rolf Fimmers Hans van der Ven Manfred Hansmann | 2001 | Fertility and Sterility2001，，2： | 2 |
| 3 | Restoration and stress relief through physical activities in forests and parks显示文摘 | Ralf Hansmann Stella-Maria Hug Klaus Seeland | 2007 | Urban Forestry & Urban Greening2007，，4： | 2 |
| 4 | 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 |
| 5 | Patent ductus arteriosus of the preterm infant显示文摘 | HAMRICK S E HANSMANN G | 2010 | Pediatrics2010，125，5： | 1 |
| 6 | The effect of tax exemp- tion and other factors on the market share of nonprofit versus for - profit finns 显示文摘 | Henry Hansmann | 1987 | National tax journal1987，40，： | 1 |
| 7 | The role of the Non-Profit enterprise显示文摘 | Hansmann H | 1980 | Yale Law Journal1980，，89： | 1 |
| 8 | The Hodgkin and Reed/Sternberg cell显示文摘 | Kuppers R and Hansmann M L | 2005 | IJBCB2005，37，3： | 1 |
| 9 | Die Aortendissektion – Wann operieren, wann endoluminal therapieren?显示文摘 | G.M. Richter J.R. Allenberg H. Schumacher J. Hansmann C. Vahl S. Hagl | 2001 | Der Radiologe2001，，8： | 1 |
| 10 | Risk factors for metastatic infection in patients with Staphylococcus aureus bacteremia with and without endocarditis显示文摘 | Lesens O Hansmann Y Storck D | | 0，，04： | 1 |
| 11 | Impact of time- resolved MRA on diagnostic accuracy in patients with symptomat- ic peripheral artery disease of the calf station显示文摘 | Hansmann J Michaely H J Morelli J N | 2013 | AJR2013，201，6： | 1 |
| 12 | Nonprofit enterprise in the performing arts显示文摘 | HANSMANN H B | 1981 | Bell Journal of Economics1981，12，： | 1 |
| 13 | Ownership of the Fiml 显示文摘 | Hansmann Herry | 1988 | Journal of Law Economics and Organization1988，4，2： | 1 |
| 14 | Patent ductus arteriosus of the preterm in- fant 显示文摘 | Hamrick SE Hansmann G | 2010 | Pediatrics2010，5，： | 1 |
| 15 | Improved codes for space-time trellis-coded modulation显示文摘 | Bauch G Hansmann A | 2000 | IEEE Communications Letters2000，4，1： | 1 |
| 16 | Variation of coupling coefficients by sampled gratings in complex coupled distributed-feedback lasers显示文摘 | Hansmann S Hillmer H Walter H | 1995 | Journal of Selected Topics in Quantum Electronics IEEE1995，1，： | 1 |
| 17 | The effects of tax exemption and other factors on the market share of nonprofit versus for-profit firms显示文摘 | HANSMANN H B | 1987 | National tax journal1987，40，： | 1 |
| 18 | TNFAIP3 (A20) is a tumor suppressor gene in Hodgkin lymphoma and primary mediastinal B cell lymphoma显示文摘 | Schmitz R Hansmann ML Bohle V | 2009 | J Exp Med2009，206，5： | 1 |
| 19 | Helical hydro-CT for diag- nosis and staging of gastric carcinoma 显示文摘 | Dux M Ritchter GM Hansmann J | 1999 | J Comput Assist To- mogr1999，23，4： | 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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