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| 1 | Significance of an additional unenhanced scan in computed tomography angiography of patients with suspected acute aortic syndrome显示文摘AIM To assess potential benefits of an additional unenhanced acquisition in computed tomography angiography(CTA) in patients with suspected acute aortic syndrome(AAS).METHODS A total of 103 aortic CTA(non-electrocardiography-gated, 128 slices) performed due to suspected AAS were retrospectively evaluated for acute aortic dissection(AAD), intramural hematoma(IMH), or penetrating aortic ulcer(PAU). Spiral CTA protocol consisted of an unenhanced acquisition and an arterial phase. If AAS was detected, a venous phase(delay, 90 s) was added. Images were evaluated for the presence and extent of AAD, IMH, PAU, and related complications. The diagnostic benefit of the unenhanced acquisition was evaluated concerning detection of IMH.RESULTS Fifty-six(30% women; mean age, 67 years; median, 68 years) of the screened individuals had AAD or IMH. A triphasic CT scan was conducted in 76.8%(n =43). 56% of the detected AAD were classified as Stanford type A, 44% as Stanford type B. 53.8% of the detected IMH were classified as Stanford type A, 46.2% as Stanford type B. There was no significant difference in the involvement of the ascending aorta between AAD and IMH(P = 1.0) or in the average age between AAD and IMH(P = 0.548), between Stanford type A and Stanford type B in general(P = 0.650) and between Stanford type A and Stanford type B within the entities of AAD and IMH(AAD: P = 0.785; IMH: P = 0.146). Only the unenhanced acquisitions showed a significant density difference between the adjacent lumen and the IMH(P = 0.035). Subadventitial hematoma involving the pulmonary trunk was present in 5 patients(16%) with Stanford A AAD. The difference between the median radiation exposure of a triphasic(2737 mGy*cm) compared to a biphasic CT scan(2135 mGy*cm) was not significant(P = 0.135).CONCLUSION IMH is a common and difficult to detect entity of AAS. An additional unenhanced acquisition within an aortic CTA protocol facilitates the detection of IMH. | Nikolaos Panagiotopoulos Felix Drüschler Martin Simon Florian M Vogt Sebastian Wolfrum Steffen Desch Doreen Richardt Jorg Barkhausen Peter Hunold | 2018 | World Journal of Radiology2018，10，11： | 2 |
| 2 | Radiation exposure during cardiac CT:effective doses at multi-detector row CT and electron-beam CT显示文摘 | Hunold P Vogt F M Schmermund A | 2003 | Radiology2003，226，： | 1 |
| 3 | Primary Care Availability and Emergency Department Use by Older A-dults: a population - based analysis 显示文摘 | Hunold K M Richmond N L Waller A E | 2014 | Journal of the A-merican Geriatrics Society2014，62，9： | 1 |
| 4 | Imaging of myocardial perfusion with magnetic resonance显示文摘 | Barkhausen J Hunold P Jochims M | | 0，，： | 1 |
| 5 | Comparison of aortic valve area measured by magenetic resonance imaging and dual-source computed tomography显示文摘 | Bruder O Jochims M Hunold P | 2009 | Acta Radiol2009，50，6： | 1 |
| 6 | Radiation exposure during cardiac CT:effective doses at mul- ti-detector row CT and electron-beam CT显示文摘 | HUNOLD P VOGT F M SCHMERMUND A | 2003 | Radiology2003，226，： | 1 |
| 7 | Erythropoietin reduces ischemia-reperfusion injury after liver transplantation in rats 显示文摘 | Sehmeding M Hunold G Ariyakhagom V | 2009 | Transpl Int2009，22，7： | 1 |
| 8 | Radiation exposure during cardiac CT: effective doses at multi-detector row CT and electron-beam CT显示文摘 | Hunold P Vogt F M Schmermund A | 2003 | Radiology2003，226，： | 1 |
| 9 | Backwards integration and strategic delegation显示文摘 | Hunold M Roller L H Stahl K O | 2012 | ZEW-Centre for European Economic Research Discussion Paper2012，，： | 1 |
| 10 | Radiation exposure dur-ing cardiac CT:effective doses at multi-detector row CT and elec-tron-beam CT显示文摘 | Hunold P Vogt F M Schmermund | 2003 | Radiology2003，8，1： | 1 |
| 11 | Radiation exposure during cardiac CT:effective doses at multi-detector row CT and electron-beam CT显示文摘 | HUNOLD P VOGT F M SCHMERMUND A | 2003 | Radiology2003，226，： | 1 |
| 12 | Spinal meningiomas:critical review of 131 surgically treated patients显示文摘 | Sandalcioglu IE Hunold A Müller O | 2008 | Eur Spine J2008，17，： | 1 |
| 13 | Right ventricular involvement in acute left ventricular myocardial infarction:prognostic implications of MRI findings显示文摘 | Jensen CJ Jochims M Hunold P | 2010 | Am J Roentgenol2010，194，3： | 1 |
| 14 | Assessment of left ventricular function and mass in dual-source computed tomography coronary an- gtography: influence of beta-blockers on left ventricular function: com- parison to magnetic resonance imaging显示文摘 | Jensen CJ Jochims M Hunold P | 2010 | Eur J Radio12010，74，3： | 1 |
| 15 | Omnidirectional stereo vision with a hyperbolic double lobed mirror显示文摘 | CABRAL E L L SOUZA JUNIOR J C HUNOLD M C | 2004 | Proceedings of International Conference on Pattern Recognition2004，1，： | 1 |
| 16 | Erythropoietin reduces ischemia-reperfusion injury after liver transplantation in rats显示文摘 | Schmeding M Hunold G Ariyakhagorn V | | 0，，： | 1 |
| 17 | Assessment of left ventricular function and mass in dual-source computed tomography coronary angiography:influence of beta-blockers on left ventricular function:comparison to magnetic resonance imaging显示文摘 | Jensen CJ Jochims M Hunold P | | 0，，03： | 1 |
| 18 | Radiation exposure during cardiac CT: effective doses at multi-detector row CT and electron-beam CT显示文摘 | Hunold P Vogt F M Schmermund A | 2003 | Radiology2003，226，1： | 1 |
| 19 | Myocardial late enhancement in contrast-enhanced cardiac MRh distinction between infarction scar and noninfarction-related disease 显示文摘 | HUNOLD P SCHLOSSER T VOGT F M et at | 2005 | AJR Am J Roentgenol2005，184，： | 1 |
| 20 | Parallel acquisition tech- niques for accelerated volumetric interpolated breath-hold exami- nation magnetic resonance imaging of the upper abdomen: assess- ment of image quality and lesion conspicuity显示文摘 | Vogt F M Antoch G Hunold P | 2005 | J Magn Reson Imaging2005，21，4： | 1 |
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