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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 | 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 |
| 3 | A novel terminologic “naming-meshing” system using anterior chamber sedimentation for early diagnosis and prompt treatment of ocular or systemic diseases: is it hypopyon or pseudohypopyon?显示文摘A novel,algorithmic“naming-meshing”system was introduced for the distinction of hypopyon from pseudohypopyon to make an early diagnosis and prompt treatment of anterior chamber collection standardized to encompass all sediment characteristics.For this reason,a literature review of“hypopyon”and“pseudohypopyon”was conducted in MEDLINE/PubMed,Scopus,and Web of Science from 1966 to May 15,2023.Two issues were clarified:1)which strategies should the ophthalmologist follow when asked to evaluate an eye with anterior chamber sedimentation to distinguish hypopyon from pseudohypopyon,and 2)in which systemic disorders should a non-ophthalmologist order a prompt ophthalmic consultation to distinguish pseudohypopyon from hypopyon.Pathognomonic characteristics of the sediment were examined;scleral show(warm/cold),location(corneal/anterior chamber/capsular/posterior),visibility(macro/micro/occult-angle),orientation(horizontal/vertical/oblique),number(single/double),shape(convex/triangular/pyramidal/ring/lumpy/inverse),and color(white/yellow/pink/brown/black).Associated findings were then assessed;acute/chronic,spontaneous/provoked,unilateral/bilateral,inflammatory/non-inflammatory,suppurative(nonsterile)/non-suppurative(sterile),granulomatous/nongranulomatous,recurrent/non-recurrent,shifting/nonshifting,and transient/persistent.The type of precipitation was named(naming)and matched(meshing)to a potential list of etiologies(inflammatory,infective,therapeutic,masquerades).Given that(pseudo)hypopyon predominantly afflicts younger patients in their most productive years,clinicians supervising such patients should be aware of all sediment characteristics.The ophthalmologist should never ask non-ophthalmologists to run the full battery of tests in a patient with(pseudo)hypopyon,and rather indicate which type of collection is present,what its pathognomonic feature is,and what the most likely diagnoses to be excluded are. | Cem Evereklioglu Hidayet Sener Hatice Kubra Sonmez Osman Ahmet Polat Duygu Gulmez Sevim Hatice Arda Fatih Horozoglu | 2023 | International Journal of Ophthalmology(English edition)2023，16，8： | 0 |
| 4 | Automated evaluation of parapapillary choroidal microvasculature in crowded optic discs:a controlled,optical coherence tomography angiography study显示文摘AIM:To compare superficial and deep vascular properties of optic discs between crowded discs and controls using optical coherence tomography angiography(OCT-A).METHODS:Thirty patients with crowded discs,and 47 control subjects were enrolled in the study.One eye of each individual was included and OCT-A scans of optic discs were obtained in a 4.5×4.5 mm^(2) rectangular area.Radial peripapillary capillary(RPC)density,peripapillary retinal nerve fiber layer(pRNFL)thickness,cup volume,rim area,disc area,cup-to-disc(c/d)area ratio,and vertical c/d ratio were obtained automatically using device software.Automated parapapillary choroidal microvasculature(PPCMv)density was calculated using MATLAB software.When the vertical c/d ratio of the optic disc was absent or small cup,it was considered as a crowded disc.RESULTS:The mean signal strength index of OCT-A images was similar between the crowded discs and control eyes(P=0.740).There was no difference in pRNFL between the two groups(P=0.102).There were no differences in RPC density in whole image(P=0.826)and peripapillary region(P=0.923),but inside disc RPC density was higher in crowded optic discs(P=0.003).The PPCMv density in the inner-hemisuperior region was also lower in crowded discs(P=0.026).The pRNFL thickness was positively correlated with peripapillary RPC density(r=0.498,P<0.001).The inside disc RPC density was negatively correlated with c/d area ratio(r=-0.341,P=0.002).CONCLUSION:The higher inside disc RPC density and lower inner-hemisuperior PPCMv density are found in eyes with crowded optic discs. | Hatice Arda Hidayet Sener Ozge Temizyurek Hatice Kubra Sonmez Duygu Gulmez Sevim Cem Evereklioglu Fatih Horozoglu Ayse Busra Gunay Sener | 2024 | International Journal of Ophthalmology(English edition)2024，17，1： | 0 |
| 5 | 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 |
| 6 | Effects of chronic smoking on color vision in young subjects显示文摘AIM: To evaluate the effects of chronic smoking on color vision in young subjects.METHODS: This study included 91 smokers and 88non-smokers(a total of 179 volunteers) without any ophthalmologic and systemical disorders. The subjects were between 18-40 years of age with a best corrected visual acuity(BCVA) of 20/20, normal anterior and posterior segment examinations and normal intraocular pressure. The color vision of the subjects were evaluated with Farnsworth-Munsell 100 Hue test(FMHT). The total error scores and axis calculation were performed for each subject and the results correlated.RESULTS: Mean age and the standard deviation was28±5y in the smokers group, and 26.7±5.5y in the control group(P =0.101). Sex distribution was similar in the two groups(P =0.365). There was no significant correlation between age and FMHT total error scores(P =0.069).Median of FMHT total error scores of smokers and non-smokers were 65 and 50.50, respectively. FMHT total error scores was found significantly higher in smokers than non-smokers(P =0.004). There was no statisticaly significant difference between smoker and non-smoker groups with respect to axis ratio calculation(P =0.611).There was no significant correlation with FMHT total error scores with neither smoking duration nor number of cigarettes smoked per day(P =0.405, P =0.454,respectively).· CONCLUSION: This study suggested that chronic smoking affects the color vision of young smokers but this may not be sector selective. | Hatice Arda G Ertugrul Mirza Osman A Polat Sarper Karakucuk Ayse Oner Koray Gumus | 2015 | International Journal of Ophthalmology(English edition)2015，8，1： | 0 |
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