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| 1 | Dynamic contrast-enhanced MR imaging findings of bone metastasis in patients with prostate cancer显示文摘AIM:To evaluate the dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) findings of bone metastasis in prostate cancer patients.METHODS:Sixteen men with a diagnosis of metastatic prostate cancer to bones were examined with DCE-MRI at 1.5 Tesla.The mean contrast agent concentration vs time curves for bone metastasis and normal bone were calculated and K trans and ve values were estimated and compared.RESULTS:An early significant enhancement (wash-out:n=6,plateau:n=8 and persistent:n=2) was detected in all bone metastases (n=16).Bone metastasis from prostate cancer showed significant enhancementand high K trans and ve values compared to normal bone which does not enhance in the elderly population.The mean K trans was 0.101/mmiinn and 0.0051/mmiinn (P < 0.001),the mean ve was 0.141 and 0.0038 (P < 0.001),for bone metastases and normal bone,respectively. | Arda Kayhan Cheng Yang Fatma Nur Soylu Hatice Lakadamyal Ila Sethi Gregory Karczmar Walter Stadler Aytekin Oto | 2011 | World Journal of Radiology2011，3，10： | 5 |
| 2 | Multi-parametric MR imaging of transition zone prostate cancer: Imaging features, detection and staging显示文摘Magnetic resonance (MR) imaging has been increasingly used in the evaluation of prostate cancer. As studies have suggested that the majority of cancers arise from the peripheral zone (PZ), MR imaging has focused on the PZ of the prostate gland thus far. However, a considerable number of cancers (up to 30%) originate in the transition zone (TZ), substantially contributing to morbidity and mortality. Therefore, research is needed on the TZ of the prostate gland. Recently, MR imaging and advanced MR techniques have been gaining acceptance in evaluation of the TZ. In this article, the MR imaging features of TZ prostate cancers, the role of MR imaging in TZ cancer detection and staging, and recent advanced MR techniques will be discussed in light of the literature. | Arda Kayhan Jacob Oommen Aytekin Oto | 2010 | World Journal of Radiology2010，2，5： | 3 |
| 3 | Magnetic resonance enterography in Crohn’s disease: Standard and advanced techniques显示文摘Crohn's disease (CD) is a chronic autoimmune disorder that affects mainly young people. The clinical management is based on the Crohn's Disease Activity Index and especially on biologic parameters with or without additional endoscopic and imaging procedures, such as barium and computed tomography examinations. Recently, magnetic resonance (MR) imaging has been a promising diagnostic radiologic technique with lack of ionizing radiation, enabling superior tissue contrast resolution due to new pulse-sequence developments. Therefore, MR enterography has the potential to become the modality of choice for imaging the small bowel in CD patients. | Arda Kayhan Jacob Oommen Farid Dahi Aytekin Oto | 2010 | World Journal of Radiology2010，2，4： | 3 |
| 4 | MR imaging of ectopic pregnancy with an emphasis on unusual implantation sites 显示文摘 | Mert Koroglu Arda Kayhan | 2013 | Jpn J Radiol2013，31，： | 1 |
| 5 | MR imaging of ectopic pregnancy with an emphasis on unusual implantation sites显示文摘 | Mert K?ro?lu Arda Kayhan Fatma Nur Soylu Bekir Erol Christine Schmid-Tannwald Cemil Gürses ?brahim Karademir Randy Ernst Ambereen Yousuf Aytekin Oto | 2013 | Japanese Journal of Radiology2013，，2： | 1 |
| 6 | Diffusion MRI of acute pancreatitis and comparison with normal individuals using ADC values显示文摘 | Stephen Thomas Arda Kayhan Hatice Lakadamyali Aytekin Oto | 2012 | Emergency Radiology2012，，： | 1 |
| 7 | MR imaging of ectopic pregnancy with an emphasis on unusual implantation sites 显示文摘 | Mert Koroglu Arda Kayhan | 2013 | Jpn J Radiol2013，31，： | 1 |
| 8 | Quantitative Analysis of Dynamic Contrast Enhanced MRI for Assessment of Bowel Inflammation in Crohn’s Disease显示文摘 | Aytekin Oto Xiaobing Fan Devkumar Mustafi Sanaz A. Jansen Gregory S. Karczmar David T. Rubin Arda Kayhan | 2009 | Academic Radiology2009，，： | 1 |
| 9 | Multiple progressive focal nodular hyperplasia lesions of liver in a patient with hemosiderosis显示文摘Focal nodular hyperplasia(FNH) is the second most common benign lesion of the liver.It is a solitary lesion and usually does not enlarge.We present the magnetic resonance imaging findings of multiple progressive FNH lesions in a patient with hemosiderosis using GadoliniumEOB-DTPA(Eovist) as a hepatobiliary contrast agent.The possible mechanisms underlying the occurrence and progression of FNH lesions and the potential value of Eovist in characterizing the lesions were discussed. | Arda Kayhan Nanda Venu Hatice Lakadamyall Donald Jensen Aytekin Oto | 2010 | World Journal of Radiology2010，2，10： | 0 |
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