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| 1 | 虚拟 nonenhanced 腹的双精力的 MDCT : 图象特征的分析显示文摘 AIM:To evaluate abdominal and pelvic image characteristics and artifacts on virtual nonenhanced(VNE) images generated from contrast-enhanced dual-energy multidetector computed tomography(MDCT)studies.METHODS:Hadassah-Hebrew University Medical Institutional Review Board approval was obtained;22 patients underwent clinically-indicated abdominal and pelvic single-source dual-energy MDCT(Philips Healthcare,Cleveland,OH,USA),pre-and post-IV administration of Omnipaque 300 contrast(100 cc).Various solid and vascular structures were evaluated.VNE images were generated from the portal contrast-enhanced phase using probabilistic separation.Contrast-enhanced-,regular nonenhanced(RNE)-,and VNE images were evaluated with a total of 1494 density measurements.The ratio of iodine contrast deletion was calculated.Visualization of calcifications,urinary tract stones,and image artifacts in VNE images were assessed.RESULTS:VNE images were successfully generated in all patients.Significant portal-phase iodine contrast deletion was seen in the kidney(61.7%),adrenal gland(55.3%),iliac artery(55.0%),aorta(51.6%),and spleen(34.5%).Contrast deletion was also significant in the right atrium(RA)(51.5%)and portal vein(39.3%),but insignificant in the iliac vein and inferior vena cava(IVC).Average post contrast-to-VNE HU differences were significant(P<0.05)in the:RA-135.3(SD 121.8),aorta-114.1(SD 48.5),iliac artery-104.6(SD 53.7),kidney-30.3(SD 34.9),spleen-9.2(SD 8.8),and portal vein-7.7(SD 13.2).Average VNE-toRNE HU differences were significant in all organs but the prostate and subcutaneous fat:aorta 38.0(SD 9.3),RA 37.8(SD 16.1),portal vein 21.8(SD 12.0),IVC 12.2(SD 11.6),muscle 3.3(SD 4.9),liver 5.7(SD 6.4),spleen 22.3(SD 9.8),kidney 40.5(SD 6.8),and adrenal 20.7(SD 13.5).On VNE images,196/213 calcifications(92%)and 5/6 renal stones(84%)were visualized.Lytic-like artifacts in the vertebral bodies were seen in all studies.CONCLUSION:Iodine deletion in VNE images is most significant in arteries,and less significant in solid organs and veins.Most vascular and intra-abdominal organ calcifications are preserved. | Jacob Sosna Shmuel Mahgerefteh Liran Goshen Galit Kafri Galit Aviram Arye Blachar | 2012 | World Journal of Radiology2012，4，4： | 4 |
| 2 | Business Model Innovation through Trial- and- Error Learning: The Naturhouse Case 显示文摘 | SOSNA M TREVINYORODNGUEZ R N VEL AMURI S R | 2010 | Long Range Planning2010，43，23： | 1 |
| 3 | CT colonography of colorectal polyps:a metaanalysis显示文摘 | Sosna J Morrin MM Kruskal JB | 2003 | AJR2003，181，3： | 1 |
| 4 | Intraoperativesonography for neurosurgery 显示文摘 | Sosna J Barth M M Kruskal J B | 2005 | J Ultrasound Med2005，24，12： | 1 |
| 5 | Business model innovation through trial-and-error lear?ning显示文摘 | Sosna M Trevinyo-Rodriguez R N Velamuri S R | 2010 | Long Range Planning2010，43，23： | 1 |
| 6 | Resection hip arthroplasty--mid- and long-term results 显示文摘 | Hudec T Jahoda D Sosna A | 2005 | Acta Chir Orthop Traumatol Cech2005，72，5： | 1 |
| 7 | Liver lesions with hepatic capsular retraction 显示文摘 | Blachar A Federle M P Sosna J | 2009 | Semin Ultrasound CT MRI2009，30，5： | 1 |
| 8 | Guided tissue regeneration,barrier membranes and reconstruction of the cleft maxillary alveolus显示文摘 | LEAMEROVA E SOSNA B | 2006 | Alveolus J Craniofac Surg2006，17，6： | 1 |
| 9 | CT colonography of color- eetal polyps: a metaanalysis显示文摘 | Sosna J Morrin MM Kruskal JB | 2003 | AJR Am J Roentgenol2003，181，6： | 1 |
| 10 | Multi-detector row CT vascular anatomy of the surgical plane in split-liver trans- plantation 显示文摘 | Guiney M J Kruskal JB Sosna J | 2003 | Radiology2003，229，2： | 1 |
| 11 | Business model innovation through trial - and - error learning: the Naturhnuse case 显示文摘 | SOSNA M TREVINYO- RODR? GUEZ R N VELAMURI S R | 2010 | Long Range Planning2010，43，2： | 1 |
| 12 | CT colonography in 546 patients with incomplete eolonoseopy 显示文摘 | Copel L Sosna J Kruskal JB | 2007 | Radiology2007，244，2： | 1 |
| 13 | Morphological features ofvasa vasorum in pathologically changed human great saphe- nous veinand its tributaries 显示文摘 | Kachlik D Stingl J Sosna B | 2008 | Vasa2008，37，2： | 1 |
| 14 | US-guided percutaneous cholecystostomy:features predicting culture-positive bile and clinical outcome显示文摘 | Sosna J Jonathan B Kruskal LC | 2004 | Radiology2004，230，： | 1 |
| 15 | Beneficial effect of pancreas and kidney transplantation on advanced diabetic retinopathy显示文摘 | Koznarová R Saudek F Sosna T | | 0，，： | 1 |
| 16 | Business Model Innovation through Trial-and-error Leaming-the NaturhouseCase显示文摘 | Sosna M Nelly R Thevinyo-Rodriguez Velamuri R | 2010 | Long Range Planning2010，43，： | 1 |
| 17 | Busi- ness model innovation through trial-and-error learning: The Naturhouse case显示文摘 | Sosna M Trevinyo-Rodriguez R N Velamuri S R | 2010 | Long Range Planning2010，43，2： | 1 |
| 18 | Guided tissue regeneration, barrier membranes and reconstruction of the cleft maxillary alveolus 显示文摘 | Duskova M Leamerova E Sosna B | 2006 | J Craniofac Surg2006，17，6： | 1 |
| 19 | Business Mode| Innovation through Trial-and-Error Learning: The Naturhouse Case 显示文摘 | Marc Sosna Rosa Nelly Trevinyo Rodriguez | 2010 | Long Range Planning2010，，43： | 1 |
| 20 | Guided tissue regeneration,barrier membranes and reconstruction of the cleft maxillary alveolus显示文摘 | Duskova M Leamerova E Sosna B | 2006 | J Craniofac Surg2006，17，6： | 1 |
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